San José Weather in August

What's the weather like in San José (San José) in August 2023?

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

August is in the summer in San José and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 24°C (76°F), whilst at night 17°C (63°F) is normal.

San José weather averages (imperial / metric)
Daytime temperature 24.4°C 75.9°F
Nightly temperature 17°C 62.6°F
Average temperature 20.7°C 69.3°F
Daily sunshine 6.6 hrs
Avg rainfall 282 mm 11.1 ins
Rainy days 24 days
Sea temperature 28.7°C 83.7°F
Humidity 84%
Windspeed 12.6kph 8 mph

On average August is the 4th wettest month of the year in San José with around 282mm 11.1 inches of rain making it a very wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.6 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 2023.

Other monthly averages

Best places to visit in August

UV index Best time to go?

San José weather stats

San José weather statistics
Hottest month: May 25°C 77°F
Driest month: January 7mm 0.3ins
Sunniest month: March 7.6hrs
Coldest month: January 22.9°C 73.2°F
Wettest month: September 372mm 14.6ins
Map showing location of San José (9.93333, -84.08333) San José map pin © Google

Locations nearby

Top Costa Rica locations