Guam Weather Forecast

Check the Guam weather forecast for the next 5 days before you head off on holiday. The 5-day forecast shows the prevailing weather conditions, maximum & minimum temperatures, hours of sunshine per day, wind speed & direction and more. Tomorrow's maximum temperature in Guam is expected to be 86°F. The weather forecast shown below is for Agana.

Guam: 5-day weather forecast

Click on a symbol below to see the daily forecast in detail.

Last updated at 16:00 on Tuesday 19th September 2017 GMT

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Guam weather forecast by day

Below are the detailed weather forecasts for Guam for the next 5 days. The forecasts shown are for Agana and may not represent the whole of Guam. Browse more destinations in Guam to view more weather forecasts.

Guam weather for Wednesday 20th September 2017

Below is the Guam weather forecast for Wednesday 20th September 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 86°F, moderate levels of heat & humidity and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 83% chance of some rain and a moderate breeze of 17 mph from the east.

  • 86
    °F maximum temperature
  • 79
    °F minimum temperature
  • isolated thunderstorms
  • 4
    hours of sunshine
  • 83
    % chance of some rain
  • <20
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 17
    mph wind from E

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Guam weather for Thursday 21st September 2017

Below is the Guam weather forecast for Thursday 21st September 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 86°F, moderate levels of heat & humidity and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 75% chance of some rain and a moderate breeze of 16 mph from the south-east.

  • 86
    °F maximum temperature
  • 79
    °F minimum temperature
  • isolated thunderstorms
  • 5
    hours of sunshine
  • 75
    % chance of some rain
  • <20
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 16
    mph wind from SE

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Guam weather for Friday 22nd September 2017

Below is the Guam weather forecast for Friday 22nd September 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 90°F, high levels of heat & humidity and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 39% chance of some rain and a moderate breeze of 17 mph from the north-east.

  • 90
    °F maximum temperature
  • 79
    °F minimum temperature
  • isolated thunderstorms
  • 6
    hours of sunshine
  • 39
    % chance of some rain
  • <2
    mm of rainfall expected
  • H
    high heat & humidity
  • 17
    mph wind from NE

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Guam weather for Saturday 23rd September 2017

Below is the Guam weather forecast for Saturday 23rd September 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 90°F, high levels of heat & humidity and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 72% chance of some rain and a moderate breeze of 17 mph from the east.

  • 90
    °F maximum temperature
  • 81
    °F minimum temperature
  • isolated thunderstorms
  • 6
    hours of sunshine
  • 72
    % chance of some rain
  • <20
    mm of rainfall expected
  • H
    high heat & humidity
  • 17
    mph wind from E

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Guam weather for Sunday 24th September 2017

Below is the Guam weather forecast for Sunday 24th September 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 90°F, high levels of heat & humidity and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 67% chance of some rain and a moderate breeze of 17 mph from the east.

  • 90
    °F maximum temperature
  • 81
    °F minimum temperature
  • isolated thunderstorms
  • 6
    hours of sunshine
  • 67
    % chance of some rain
  • <10
    mm of rainfall expected
  • H
    high heat & humidity
  • 17
    mph wind from E

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Guam weather by month

Check Guam weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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