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10 day weather forecast for Guam Island 🏝️

Tuesday, 21st July 2026, at 00:55
Guam Island Weather Pages

Guam Island weather forecast

The weather forecast for Guam Island over the next 5 days indicates very wet conditions with temperatures ranging from 28 °C to 29 °C.

Rain is expected today and will continue at least through Saturday.

Wind speeds are expected to be breezy, averaging around 18 km/h.

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Guam Island weather forecast

Guam Island 14 days weather forecast

This weeks weather in Guam Island. Click on a date for detailed forecasts
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Access Guam Island weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Guam Island long range weather forecast

30 day weather forecast for Guam Island
Important Notice
Our Guam Island long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in Guam Island

The chart displays the expected rainfall values (in mm) over the next 14 days in Guam Island, highlighting variations in precipitation levels for specific dates. ☔

Guam Island Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in Guam Island over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

Frequently asked questions about the weather in Guam Island

How warm is it in Guam Island over the next 14 days?

Over the next two weeks, temperatures in Guam Island are expected to range from around 27 °C on the coldest nights up to about 29 °C on the warmest days. Use this range to plan what to pack and wear.

Will it rain in Guam Island in the next two weeks?

Yes - rain is expected on about 14 of the next 14 days in Guam Island, with roughly 58.8 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.

How windy is it in Guam Island?

Maximum wind speeds in Guam Island are forecast to reach about 38 km/h at their peak over the next 14 days.

When is the best time to visit Guam Island?

For a month-by-month look at temperatures and rainfall, see our best time to visit Guam Island guide.

How accurate is the 14-day forecast for Guam Island?

Our Guam Island forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.

Quick links

More Guam Island weather pages
Location coordinates Where is Guam Island?

Get accurate weather forecasts for Guam Island, located at latitude 13.431 and longitude 144.753. Stay updated with localized weather information tailored for Guam Island.

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