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San Juan weather in August 2025
Expect 90°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in San Juan in August. Check more long-term weather averages for San Juan in August before you book your next holiday to Dominican Republic in 2025/2026.
- 90°F max day temperature
90 - 8 hours of sunshine per day
- 15 days with some rainfall
15 - 66°F min night temperature
66 - 13 hours of daylight per day
13 - High heat & humidity
H - 5.3 inches of monthly rainfall
5.3 - 11+ (Extreme) UV index
11
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The August weather guide for Dominican Republic (San Juan) 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) | Imperial (°F)
More about the Dominican Republic
How hot is it in San Juan in August?
Daytime temperatures usually reach 90°F in San Juan in August with high heat and humidity, falling to 66°F at night.
How sunny is it in San Juan in August?
There are normally 8 hours of bright sunshine each day in San Juan in August - that's 65% of daylight hours.
Does it rain in San Juan in August?
There are usually 15 days with some rain in San Juan in August and the average monthly rainfall is 5.3 inches.
What is the chance of a hurricane in San Juan in August?
On average less than 1 day in August in San Juan is likely to be affected by the passage of one or more tropical storms.
San Juan August sunrise & sunset times
Browse the sunrise and sunset times for San Juan in August 2025. Select a month to view San Juan sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 06:22 | 19:20 |
| Saturday, 16th August 2025 | 06:27 | 19:11 |
| Sunday, 31st August 2025 | 06:30 | 19:00 |
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