San Juan weather averages

Going to San Juan? Find the best month to visit San Juan based on the weather.

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Check San Juan weather averages before you book your next holiday in 2018/2019. Today's maximum temperature in San Juan is expected to be 30°C, while the average maximum temperature in April is 29°C.

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Metric (°C / mm)  |  Imperial (°F / inches)

San Juan weather averages: best month

San Juan Best month Averages
Warmest June, July, August, September & October 30°C
Sunniest March, April, June, July & August 9 hours per day
Least rain April 14 days
Warmest sea September & October 29°C

San Juan climate guide

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Tropical storm risk: San Juan, Puerto Rico hurricane season

% of month affected by tropical storms
<1%
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<1%
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<1%
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<1%
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The San Juan, Puerto Rico tropical storm risk chart above shows the hurricane season.

More about tropical storms

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San Juan weather averages by month

Check San Juan holiday weather averages for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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Compare San Juan weather with the USA

Below the San Juan weather chart shows maximum daytime temperature for San Juan, Puerto Rico and the USA (Washington). For more weather parameters or to change the destinations shown visit the comparison weather tool.

Maximum daytime temperature (°C)

San Juan, Puerto Rico
USA (Washington)
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Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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More Puerto Rico destinations

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