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Guam weather in July 2025
Expect 31°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Guam in July. Check more long-term weather averages for Guam in July before you book your next holiday to Guam in 2025/2026.
- 3131°C max day temperature
- 5 hours of sunshine per day
- 1919 days with some rainfall
- 2525°C min night temperature
- 1313 hours of daylight per day
- VHVery High heat & humidity
- 273273 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2929°C sea temperature
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Recommended for Guam
The July weather guide for Guam, represented by Agana, (Agana) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
How hot is it in Guam in July?
Daytime temperatures usually reach 31°C in Agana, Guam in July with very high heat and humidity, falling to 25°C at night.
How sunny is it in Guam in July?
There are normally 5 hours of bright sunshine each day in Agana, Guam in July - that's 41% of daylight hours.
How warm is the sea around Guam in July?
The average sea temperature around Agana, Guam in July is 29°C.
Does it rain in Guam in July?
There are usually 19 days with some rain in Agana, Guam in July and the average monthly rainfall is 273mm.
What is the chance of a typhoon in Guam in July?
On average 1.5 days in July in Agana, Guam are likely to be affected by the passage of one or more tropical storms.
Guam July sunrise & sunset times
Browse the sunrise and sunset times for Guam in July 2025. Select a month to view Guam sunrise and sunset times for the next 12 months. The Guam sunrise and sunset times shown below are for Agana.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Tuesday, 1st July 2025 | 05:58 | 18:52 |
Wednesday, 16th July 2025 | 06:02 | 18:52 |
Thursday, 31st July 2025 | 06:06 | 18:49 |
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