Guam Island
10 day weather forecast for Guam Island 🏝️
Wednesday, 11th November 2026, at 15:18
Today
30° 27°
Tomorrow
30° 27°
Friday
30° 27°
Saturday
30° 27°
Sunday
30° 27°
Monday
30° 27°
Tuesday
29° 27°
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Guam Island Weather Pages
Guam Island weather forecast
The weather forecast for Guam Island over the next 5 days indicates warm conditions with temperatures around 30 °C.
Rain is expected today and will continue at least through Sunday.
Wind speeds are expected to be breezy, averaging around 16.2 km/h.
Guam Island 14 days weather forecast
This weeks weather in Guam Island. Click on a date for detailed forecasts
Wed. 11
30°
27°
1.3 mm
Thu. 12
30°
27°
1.3 mm
Fri. 13
30°
27°
1.1 mm
Sat. 14
30°
27°
1.3 mm
Sun. 15
30°
27°
4.1 mm
Mon. 16
30°
27°
6 mm
Tue. 17
29°
27°
4.9 mm
Wed. 18
30°
27°
2.9 mm
Thu. 19
30°
27°
6.6 mm
Fri. 20
30°
27°
8.5 mm
Sat. 21
30°
27°
3.9 mm
Sun. 22
30°
27°
3.9 mm
Mon. 23
29°
27°
5.3 mm
Tue. 24
29°
27°
4.8 mm
Further Ahead
You can click on date
Access Guam Island weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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
A total of 55.7 mm is expected over 14 rainy days. The wettest day is Friday 20, with 8.5 mm. Click a day for details.
Guam Island Wind Speed Forecast Chart
The windiest day is Wednesday 18, with winds up to 29.9 km/h from the E. The calmest day is today. The average daily maximum is 25.4 km/h.
Wed. 11
16.2 km/h
E · Gentle breeze
Thu. 12
25.2 km/h
NE · Moderate breeze
Fri. 13
25.6 km/h
NE · Moderate breeze
Sat. 14
26.6 km/h
NE · Moderate breeze
Sun. 15
25.6 km/h
E · Moderate breeze
Mon. 16
24.8 km/h
E · Moderate breeze
Tue. 17
27.7 km/h
E · Moderate breeze
Wed. 18
29.9 km/h
E · Fresh breeze
Thu. 19
22 km/h
E · Moderate breeze
Fri. 20
24.5 km/h
E · Moderate breeze
Sat. 21
27 km/h
E · Moderate breeze
Sun. 22
27.4 km/h
NE · Moderate breeze
Mon. 23
27 km/h
E · Moderate breeze
Tue. 24
26.3 km/h
E · Moderate breeze
CalmLight breezeGentle breezeModerate breezeFresh breeze
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 30 °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 55.7 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 29.9 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.
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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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