San José Weather in August

What's the weather like in San José (Toa Baja) in August 2024?

The climate in San José during August can be summarized as hot, humid and wet.

August is in the summer in San José and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 23°C (74°F) is normal.

San José weather averages (imperial / metric)
Daytime temperature 30°C 85.9°F
Nightly temperature 23.3°C 73.9°F
Average temperature 26.6°C 79.9°F
Daily sunshine 9.2 hrs
Avg rainfall 193 mm 7.6 ins
Rainy days 20 days
Sea temperature 28.7°C 83.7°F
Humidity 77%
Windspeed 16.2kph 10 mph

On average August is the wettest month of the year in San José with around 193mm 7.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.2 hours of sunshine per day.

August temperatures in San José

San José average temperature in August

August rainfall

San José average rain in August

August hourly sunshine

San José average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San José in August 2024.

Other monthly averages

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San José weather stats

San José weather statistics
Hottest month: August 29.8°C 85.6°F
Driest month: March 87mm 3.4ins
Sunniest month: March 9.6hrs
Coldest month: January 26.4°C 79.5°F
Wettest month: August 193mm 7.6ins
Map showing location of San José (18.39828, -66.25572) San José map pin © Google

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