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San Juan weather in August 2019
- 3030°C max day temperature
- 2020 days with some rainfall
- 2424°C min night temperature
- 1313 hours of daylight per day
- HHigh heat & humidity
- 195195 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2828°C sea temperature
The August weather guide for San Juan, Puerto Rico 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)
Guide to San Juan weather in August
The average maximum daytime temperature in San Juan in August is a hot 30°C (86°F) with high heat & humidity. The average night-time temperature is usually a warm 24°C (75°F). There are usually 9 hours of bright sunshine each day, which represents 68% of the 13 hours of daylight.
Expect 195mm (7.7 inches) of rainfall across the whole of August with 20 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.
The average sea temperature in and around San Juan in August is 28°C (82°F).
San Juan sunrise & sunset times for August 2019
Browse the sunrise & sunset times for San Juan in August 2019. Select a month to view San Juan sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Thursday, 1st August 2019||06:02||18:59|
|Friday, 16th August 2019||06:06||18:51|
|Saturday, 31st August 2019||06:10||18:40|
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