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 33°C. 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 04:00 on Thursday 24th August 2017 GMT

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Metric (°C / mm)  |  Imperial (°F / inches)

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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 Thursday 24th August 2017

Below is the Guam weather forecast for Thursday 24th August 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 32°C, high levels of heat & humidity and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 58% chance of some rain and a light breeze of 10 kph from the east.

  • 32
    °C maximum temperature
  • 27
    °C minimum temperature
  • isolated thunderstorms
  • 3
    hours of sunshine
  • 58
    % chance of some rain
  • <10
    mm of rainfall expected
  • H
    high heat & humidity
  • 10
    kph wind from E

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Guam weather for Friday 25th August 2017

Below is the Guam weather forecast for Friday 25th August 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 33°C, high levels of heat & humidity and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 52% chance of some rain and a moderate breeze of 20 kph from the east.

  • 33
    °C maximum temperature
  • 27
    °C minimum temperature
  • isolated thunderstorms
  • 7
    hours of sunshine
  • 52
    % chance of some rain
  • <5
    mm of rainfall expected
  • H
    high heat & humidity
  • 20
    kph wind from E

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Guam weather for Saturday 26th August 2017

Below is the Guam weather forecast for Saturday 26th August 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 30°C, moderate levels of heat & humidity and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 14 kph from the south-east.

  • 30
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 5
    hours of sunshine
  • 63
    % chance of some rain
  • <10
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 14
    kph wind from SE

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Guam weather for Sunday 27th August 2017

Below is the Guam weather forecast for Sunday 27th August 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 32°C, high levels of heat & humidity and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 27% chance of some rain and a gentle breeze of 16 kph from the east.

  • 32
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 6
    hours of sunshine
  • 27
    % chance of some rain
  • <5
    mm of rainfall expected
  • H
    high heat & humidity
  • 16
    kph wind from E

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Guam weather for Monday 28th August 2017

Below is the Guam weather forecast for Monday 28th August 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 32°C, high levels of heat & humidity and 6 hours of bright sunshine. There are 20-30 mm of rainfall expected with 40% chance of some rain and a light breeze of 12 kph from the south-east.

  • 32
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 6
    hours of sunshine
  • 40
    % chance of some rain
  • <30
    mm of rainfall expected
  • H
    high heat & humidity
  • 12
    kph wind from SE

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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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