Guam weather forecast

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Last updated at 04:00 on Friday 23rd October 2020 GMT

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The 5-day weather forecast for Guam is provided by the Swiss meteorological agency, MeteoBlue. Find out more about our data sources.

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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 Friday 23rd October 2020

Below is the Guam weather forecast for Friday 23rd October 2020. Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a gentle breeze of 14 kph from the east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 90% chance of some rain90
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 14 kph from the East14
    kph wind from E

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Guam weather for Saturday 24th October 2020

Below is the Guam weather forecast for Saturday 24th October 2020. Expect isolated thunderstorms in Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 73% chance of some rain and a moderate breeze of 21 kph from the east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 73% chance of some rain73
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 21 kph from the East21
    kph wind from E

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Guam weather for Sunday 25th October 2020

Below is the Guam weather forecast for Sunday 25th October 2020. Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 40-50 mm of rainfall expected with 89% chance of some rain and a moderate breeze of 21 kph from the east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 89% chance of some rain89
    % chance of some rain
  • 40-50 mm of rainfall expected<50
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 21 kph from the East21
    kph wind from E

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Guam weather for Monday 26th October 2020

Below is the Guam weather forecast for Monday 26th October 2020. Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 1 hour of bright sunshine. There are 30-40 mm of rainfall expected with 83% chance of some rain and a fresh breeze of 30 kph from the south.

  • 29°C maximum temperature29
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 83% chance of some rain83
    % chance of some rain
  • 30-40 mm of rainfall expected<40
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Fresh breeze of 30 kph from the South30
    kph wind from S

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Guam weather for Tuesday 27th October 2020

Below is the Guam weather forecast for Tuesday 27th October 2020. Expect isolated thunderstorms in Guam with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 76% chance of some rain and a moderate breeze of 27 kph from the south.

  • 29°C maximum temperature29
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 76% chance of some rain76
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 27 kph from the South27
    kph wind from S

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

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