Weather information sections

Alerts

In effect from Monday 05/18 2:54 AM ChST – Tuesday 05/19 4:00 PM ChST

Issued by NWS Tiyan GU

What

Dangerous rip currents.

Where

East facing reefs of the Marianas.

When

Through this afternoon.

Impacts

Rip currents can sweep even the best swimmers away from shore into deeper water.

Additional Details

Elevated trade swell is producing surf up to around 9 feet and a high risk of rip currents along east facing reefs. Swell and surf look to relax briefly today, but then increase to 9 feet along east facing reefs on tonight.

What to do

Rip currents will be life threatening. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.


Areas impacted

  • Guam
  • Rota
  • Tinian
  • Saipan
Impacted Area

Tips to stay safe

Rip currents may create dangerous swimming conditions in the area.  

  • If you enter the water, always have a flotation device with you and swim near a lifeguard. 
  • Keep small children in sight and within arm’s reach at all times. 
  • If caught in a rip current, relax and float. Don’t swim against the current. If able, swim parallel to the shoreline. 

Current conditions

Weather as of Monday, 12:54 PM ChST. The weather in Hagåtña Village, GU is windy. Temperature is 88 ℉. It feels like 99 ℉.
Wind 20 mph from the east
Humidity 68%
Dewpoint 76°F
Visibility 10 miles
Pressure 29.85 in (1011 mb)
Observation station Guam International Airport (PGUM)
Distance to location: 3 miles
Elevation: 304 feet

Today's forecast

  1. High 87
    Low 77
    Day (6AM-6PM)

    Isolated rain showers

    35% chance of precipitation

    Night (6PM-6AM)

    Scattered rain showers

    35% chance of precipitation

    time temperature
    1 PM 87
    2 PM 87
    3 PM 86
    4 PM 86
    5 PM 86
    6 PM 85
    7 PM 84
    8 PM 83
    9 PM 82
    10 PM 81
    11 PM 81
    12 AM 80
    1 AM 79
    2 AM 78
    3 AM 78
    4 AM 77
    5 AM 77
    6 AM 77
Sunrise 5:53 AM
Sunset 6:41 PM

Daily forecast

  1. Day

    Isolated rain showers

    35% chance of precipitation

    Night

    Scattered rain showers

    35% chance of precipitation

    Hourly forecast

    Detailed hourly weather data for /. The rows are weather variables, the columns are hours.
    Time
    Alert
    Temperature 87 87 86 86 86 85 84 83 82 81 81 80 79 78 78 77 77 77
    Feels like 98 98 98 97 97 96 94 93 91 90 88 85 79 78 78 77 77 77
    Condition

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Scattered rain showers

    Isolated rain showers

    Chance of precipitation

    15%

    15%

    15%

    15%

    15%

    35%

    35%

    35%

    35%

    35%

    35%

    35%

    35%

    35%

    35%

    35%

    35%

    18%

    Wind speed 16 mph from the east 16 mph from the east 16 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 14 mph from the east 14 mph from the east 13 mph from the east 13 mph from the east 13 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 13 mph from the east
    Humidity 73% 73% 74% 75% 76% 78% 80% 82% 85% 88% 90% 93% 95% 97% 98% 99% 99% 99%
    Dewpoint 77 77 77 77 77 77 77 77 77 78 78 78 77 77 77 77 77 77
    Precipitation amounts
    precipitation amounts for the coming hours
    Time Period Rain
    6 AM – 6 PM 0.03"
    6 PM – 6 AM 0.14"
    Temperature
    Temperature
    Feels like
    Chance of precipitation
    Wind
    Wind speed
    Gusts
    Humidity
    Dewpoint
    Precipitation amounts
    Snow
    Ice
    Rain
  2. Day

    Isolated rain showers

    20% chance of precipitation

    Night

    Isolated rain showers

    20% chance of precipitation

    Hourly forecast

    Detailed hourly weather data for /. The rows are weather variables, the columns are hours.
    Time
    Alert
    Temperature 77 78 79 81 83 85 86 87 87 86 86 86 85 84 83 82 81 80 80 79 78 78 77 77 77
    Feels like 77 78 84 88 92 95 97 99 99 98 98 97 96 94 93 91 90 88 85 79 78 78 77 77 77
    Condition

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Chance of precipitation

    18%

    18%

    18%

    18%

    18%

    18%

    18%

    18%

    18%

    18%

    18%

    18%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    19%

    Wind speed 13 mph from the east 14 mph from the east 15 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 15 mph from the east 15 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 13 mph from the east 13 mph from the east 13 mph from the east 13 mph from the east 13 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 10 mph from the east 10 mph from the east 10 mph from the east 12 mph from the east
    Humidity 99% 97% 92% 87% 82% 78% 75% 73% 73% 74% 75% 76% 78% 80% 83% 86% 89% 92% 94% 96% 98% 99% 100% 100% 100%
    Dewpoint 77 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 77 77 77 77 77
    Precipitation amounts
    precipitation amounts for the coming hours
    Time Period Rain
    6 PM – 6 AM 0.14"
    6 AM – 6 PM 0.06"
    6 PM – 6 AM 0.12"
    Temperature
    Temperature
    Feels like
    Chance of precipitation
    Wind
    Wind speed
    Gusts
    Humidity
    Dewpoint
    Precipitation amounts
    Snow
    Ice
    Rain
  3. Day

    Isolated rain showers

    25% chance of precipitation

    Night

    Slight chance rain showers

    25% chance of precipitation

    Hourly forecast

    Detailed hourly weather data for /. The rows are weather variables, the columns are hours.
    Time
    Temperature 77 78 79 81 83 85 87 88 88 87 87 86 86 85 84 83 82 82 81 80 79 79 78 78 78
    Feels like 77 78 84 89 92 96 98 100 100 100 99 98 98 96 95 94 92 91 89 87 85 79 79 78 78
    Condition

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Isolated rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Chance of precipitation

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    21%

    Wind speed 12 mph from the east 12 mph from the east 13 mph from the east 14 mph from the east 15 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 13 mph from the east 13 mph from the east 12 mph from the east 12 mph from the east 10 mph from the east 10 mph from the east 10 mph from the east 12 mph from the east 12 mph from the east
    Humidity 100% 98% 93% 87% 81% 76% 73% 71% 71% 72% 73% 74% 76% 79% 81% 84% 87% 89% 91% 93% 95% 96% 97% 98% 98%
    Dewpoint 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78
    Precipitation amounts
    precipitation amounts for the coming hours
    Time Period Rain
    6 PM – 6 AM 0.12"
    6 AM – 6 PM 0.06"
    6 PM – 6 AM 0.09"
    Temperature
    Temperature
    Feels like
    Chance of precipitation
    Wind
    Wind speed
    Gusts
    Humidity
    Dewpoint
    Precipitation amounts
    Snow
    Ice
    Rain
  4. Day

    Slight chance rain showers

    20% chance of precipitation

    Night

    Slight chance rain showers

    20% chance of precipitation

    Hourly forecast

    Detailed hourly weather data for /. The rows are weather variables, the columns are hours.
    Time
    Temperature 78 79 80 82 84 85 86 87 87 87 86 86 85 84 84 83 82 81 80 80 79 78 78 78 78
    Feels like 78 79 88 90 93 96 98 99 99 99 99 98 97 96 94 93 92 90 88 85 79 78 78 78 78
    Condition

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Chance of precipitation

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    21%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    19%

    16%

    Wind speed 12 mph from the east 13 mph from the east 14 mph from the east 15 mph from the east 15 mph from the east 16 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 13 mph from the east 13 mph from the east 13 mph from the east 12 mph from the east 13 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 15 mph from the east
    Humidity 98% 96% 92% 87% 82% 78% 75% 74% 74% 74% 75% 77% 79% 81% 84% 86% 89% 91% 93% 95% 97% 98% 99% 100% 100%
    Dewpoint 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78
    Precipitation amounts
    precipitation amounts for the coming hours
    Time Period Rain
    6 PM – 6 AM 0.09"
    6 AM – 6 PM 0.07"
    6 PM – 6 AM 0.09"
    Temperature
    Temperature
    Feels like
    Chance of precipitation
    Wind
    Wind speed
    Gusts
    Humidity
    Dewpoint
    Precipitation amounts
    Snow
    Ice
    Rain
  5. Day

    Slight chance rain showers

    15% chance of precipitation

    Night

    Slight chance rain showers

    25% chance of precipitation

    Hourly forecast

    Detailed hourly weather data for /. The rows are weather variables, the columns are hours.
    Time
    Temperature 78 78 80 82 84 85 87 87 87 87 87 86 86 85 84 83 82 81 80 80 79 78 78 78 78
    Feels like 78 79 86 90 94 97 99 100 100 100 100 99 98 96 95 93 92 90 88 85 79 78 78 78 78
    Condition

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Slight chance rain showers

    Chance rain showers

    Chance of precipitation

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    16%

    26%

    Wind speed 15 mph from the east 15 mph from the east 16 mph from the east 16 mph from the east 17 mph from the east 17 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 15 mph from the east 15 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 13 mph from the east 13 mph from the east 13 mph from the east 14 mph from the east 14 mph from the east
    Humidity 100% 97% 93% 88% 82% 78% 75% 74% 74% 74% 75% 77% 78% 80% 83% 86% 89% 92% 94% 96% 98% 99% 100% 100% 100%
    Dewpoint 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 79 79 78 78 78 78 78 78 78
    Precipitation amounts
    precipitation amounts for the coming hours
    Time Period Rain
    6 PM – 6 AM 0.09"
    6 AM – 6 PM 0.06"
    6 PM – 6 AM 0.09"
    Temperature
    Temperature
    Feels like
    Chance of precipitation
    Wind
    Wind speed
    Gusts
    Humidity
    Dewpoint
    Precipitation amounts
    Snow
    Ice
    Rain
  6. Day

    Chance rain showers

    25% chance of precipitation

    Night

    Chance showers and thunderstorms

    25% chance of precipitation

    Hourly forecast

    Detailed hourly weather data for /. The rows are weather variables, the columns are hours.
    Time
    Temperature 78 78 80 81 83 85 86 86 86 86 86 86 85 84 83 83 82 81 80 79 79 78 78 78 78
    Feels like 78 79 85 90 93 96 98 99 99 99 98 97 96 94 93 91 90 88 87 84 79 78 78 78 78
    Condition

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance rain showers

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Chance of precipitation

    26%

    26%

    26%

    26%

    26%

    26%

    26%

    26%

    26%

    26%

    26%

    26%

    25%

    25%

    25%

    25%

    25%

    25%

    25%

    25%

    25%

    25%

    25%

    25%

    22%

    Wind speed 14 mph from the east 14 mph from the east 15 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 16 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 14 mph from the east 14 mph from the east 14 mph from the east 13 mph from the east 13 mph from the east 13 mph from the east 13 mph from the east 13 mph from the east 14 mph from the east
    Humidity 100% 98% 95% 90% 85% 81% 77% 75% 76% 76% 77% 77% 78% 80% 82% 84% 87% 89% 91% 93% 95% 97% 98% 98% 98%
    Dewpoint 78 78 78 78 78 78 78 78 78 78 78 77 77 77 77 77 77 77 77 77 77 77 77 77 77
    Precipitation amounts
    precipitation amounts for the coming hours
    Time Period Rain
    6 PM – 6 AM 0.09"
    6 AM – 6 PM 0.09"
    6 PM – 6 AM 0.17"
    Temperature
    Temperature
    Feels like
    Chance of precipitation
    Wind
    Wind speed
    Gusts
    Humidity
    Dewpoint
    Precipitation amounts
    Snow
    Ice
    Rain
  7. Day

    Slight chance showers and thunderstorms

    25% chance of precipitation

    Night

    Slight chance showers and thunderstorms

    25% chance of precipitation

    Hourly forecast

    Detailed hourly weather data for /. The rows are weather variables, the columns are hours.
    Time
    Temperature 78 78 80 81 83 85 86 86 86 86 86 86 86 85 85 84 84 84 83 83 83 82 82 82 82
    Feels like 78 79 85 89 92 95 97 98 98 98 97 96 93 93 93 93 93 93 93 93 93 93 93 93 92
    Condition

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Slight chance showers and thunderstorms

    Chance of precipitation

    22%

    22%

    22%

    22%

    22%

    22%

    22%

    22%

    22%

    22%

    22%

    22%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    23%

    25%

    Wind speed 14 mph from the east 14 mph from the east 15 mph from the east 15 mph from the east 16 mph from the east 16 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 15 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 12 mph from the east 13 mph from the east
    Humidity 98% 95% 92% 87% 82% 78% 75% 74% 74% 74% 74% 75% 76% 77% 78% 79% 80% 81% 82% 83% 84% 85% 85% 85% 82%
    Dewpoint 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77
    Precipitation amounts
    precipitation amounts for the coming hours
    Time Period Rain
    6 PM – 6 AM 0.17"
    6 AM – 6 PM 0.15"
    6 PM – 6 AM 0.13"
    Temperature
    Temperature
    Feels like
    Chance of precipitation
    Wind
    Wind speed
    Gusts
    Humidity
    Dewpoint
    Precipitation amounts
    Snow
    Ice
    Rain

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