San José Weather in May

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

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

May is in the spring in San José and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 25°C (77°F), whilst at night 17°C (63°F) is normal.

San José weather averages (imperial / metric)
Daytime temperature 25.2°C 77.3°F
Nightly temperature 17.1°C 62.7°F
Average temperature 21.1°C 70°F
Daily sunshine 6.9 hrs
Avg rainfall 262 mm 10.3 ins
Rainy days 19 days
Sea temperature 29.3°C 84.7°F
Humidity 83%
Windspeed 12.6kph 8 mph

On average May is the 5th wettest month of the year in San José with around 262mm 10.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.9 hours of sunshine per day.

May temperatures in San José

San José average temperature in May

May rainfall

San José average rain in May

May hourly sunshine

San José average rain in May

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 May 2023.

Other monthly averages

Best places to visit in May

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)

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