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St John weather in August 2025
Expect 31°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in St John in August. Check more long-term weather averages for St John in August before you book your next holiday to Virgin Islands in 2025/2026.
- 31°C max day temperature
31 - 9 hours of sunshine per day
- 14 days with some rainfall
14 - 24°C min night temperature
24 - 13 hours of daylight per day
13 - High heat & humidity
H - 124 mm of monthly rainfall
124 - 11+ (Extreme) UV index
11 - 28°C sea temperature
28
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The August weather guide for Virgin Islands (St John) 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 St John in August?
Daytime temperatures usually reach 31°C in St John in August with high heat and humidity, falling to 24°C at night.
How sunny is it in St John in August?
There are normally 9 hours of bright sunshine each day in St John in August - that's 67% of daylight hours.
How warm is the sea around St John in August?
The average sea temperature around St John in August is 28°C.
Does it rain in St John in August?
There are usually 14 days with some rain in St John in August and the average monthly rainfall is 124mm.
What is the chance of a hurricane in St John in August?
On average less than 1 day in August in St John is likely to be affected by the passage of one or more tropical storms.
St John August sunrise & sunset times
Browse the sunrise and sunset times for St John in August 2025. Select a month to view St John sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 05:57 | 18:54 |
| Saturday, 16th August 2025 | 06:01 | 18:45 |
| Sunday, 31st August 2025 | 06:05 | 18:34 |
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