Agana weather live forecast

Today's maximum temperature in Agana is expected to be 30°C. Select a day from the live weather forecast for Agana, Guam for more weather parameters.

5-day weather forecast updated at 04:00 on Wednesday 17th September 2025 GMT

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

Agana weather forecast by day

Below are the detailed weather forecasts for Agana for the next 5 days.

Agana weather for Wednesday 17th September 2025

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 88% chance of some rain and a gentle breeze of 13 kph from the south-east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 88% chance of some rain88
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 13 kph from the South-East13
    kph wind from SE

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Agana weather for Thursday 18th September 2025

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 13 kph from the south-east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 63% chance of some rain63
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 13 kph from the South-East13
    kph wind from SE

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Agana weather for Friday 19th September 2025

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 73% chance of some rain and a light breeze of 12 kph from the east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 73% chance of some rain73
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 12 kph from the East12
    kph wind from E

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Agana weather for Saturday 20th September 2025

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 80% chance of some rain and a light breeze of 12 kph from the east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 80% chance of some rain80
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 12 kph from the East12
    kph wind from E

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Agana weather for Sunday 21st September 2025

Expect isolated thunderstorms in Agana, Guam with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 72% chance of some rain and a gentle breeze of 14 kph from the east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 72% chance of some rain72
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    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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Metric (°C / mm)  |  Imperial (°F / inches)

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