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 16:00 on Wednesday 18th October 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 19th October 2017

Below is the Guam weather forecast for Thursday 19th October 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 51% chance of some rain and a moderate breeze of 23 kph from the south-west.

  • 29
    °C maximum temperature
  • 25
    °C minimum temperature
  • isolated thunderstorms
  • 1
    hour of sunshine
  • 51
    % chance of some rain
  • <5
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 23
    kph wind from SW

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Guam weather for Friday 20th October 2017

Below is the Guam weather forecast for Friday 20th October 2017. Expect scattered clouds in Guam with a maximum temperature of 33°C, high levels of heat & humidity and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-east.

  • 33
    °C maximum temperature
  • 27
    °C minimum temperature
  • scattered clouds
  • 8
    hours of sunshine
  • 0
    mm of rainfall expected
  • H
    high heat & humidity
  • 10
    kph wind from NE

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Guam weather for Saturday 21st October 2017

Below is the Guam weather forecast for Saturday 21st October 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 32°C, high levels of heat & humidity and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 27% chance of some rain and a light breeze of 7 kph from the south.

  • 32
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 8
    hours of sunshine
  • 27
    % chance of some rain
  • <5
    mm of rainfall expected
  • H
    high heat & humidity
  • 7
    kph wind from S

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Guam weather for Sunday 22nd October 2017

Below is the Guam weather forecast for Sunday 22nd October 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 33°C, high levels of heat & humidity and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a light breeze of 11 kph from the south-west.

  • 33
    °C maximum temperature
  • 26
    °C minimum temperature
  • isolated thunderstorms
  • 6
    hours of sunshine
  • 34
    % chance of some rain
  • <2
    mm of rainfall expected
  • H
    high heat & humidity
  • 11
    kph wind from SW

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Guam weather for Monday 23rd October 2017

Below is the Guam weather forecast for Monday 23rd October 2017. Expect isolated thunderstorms in Guam with a maximum temperature of 31°C, moderate levels of heat & humidity and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 30% chance of some rain and a gentle breeze of 15 kph from the north-east.

  • 31
    °C maximum temperature
  • 25
    °C minimum temperature
  • isolated thunderstorms
  • 5
    hours of sunshine
  • 30
    % chance of some rain
  • <5
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 15
    kph wind from NE

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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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