San Juan Weather in May

What's the weather like in San Juan (San Juan) in May 2024?

The climate in San Juan during May can be summarized as mild and very dry.

May is in the fall / autumn in San Juan and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 19°C (67°F), whilst at night 5°C (40°F) is normal.

San Juan weather averages (imperial / metric)
Daytime temperature 19.2°C 66.5°F
Nightly temperature 4.5°C 40°F
Average temperature 11.8°C 53.2°F
Daily sunshine 7.5 hrs
Avg rainfall 2 mm 0.1 ins
Rainy days 1 days
Sea temperature 16.2°C 61.1°F
Humidity 65%
Windspeed 6.8kph 4 mph

On average May is the driest month of the year in San Juan with around 2mm 0.1 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 7.5 hours of sunshine per day.

May temperatures in San Juan

San Juan average temperature in May

May rainfall

San Juan average rain in May

May hourly sunshine

San Juan 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 Juan in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

San Juan weather stats

San Juan weather statistics
Hottest month: January 33.3°C 91.9°F
Driest month: May 2mm 0.1ins
Sunniest month: November 11.4hrs
Coldest month: July 15.3°C 59.5°F
Wettest month: January 19mm 0.7ins
Map showing location of San Juan (-31.5375, -68.53639) San Juan map pin © Google

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