Pasadena Weather in May

What's the weather like in Pasadena (California) in May 2025?

The climate in Pasadena during May can be summarized as warm and very dry.

May is in the spring in Pasadena and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 24°C (76°F), whilst at night 13°C (55°F) is normal.

Pasadena weather averages (imperial / metric)
Daytime temperature 24.3°C 75.7°F
Nightly temperature 12.7°C 54.9°F
Average temperature 18.5°C 65.3°F
Daily sunshine 9.9 hrs
Avg rainfall 6 mm 0.2 ins
Rainy days 1 days
Sea temperature 15°C 59°F
Humidity 65%
Windspeed 13.7kph 9 mph

On average May is the 4th driest month of the year in Pasadena with around 6mm 0.2 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.9 hours of sunshine per day.

May temperatures in Pasadena

Pasadena average temperature in May

May rainfall

Pasadena average rain in May

May hourly sunshine

Pasadena 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 Pasadena in May 2025.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Pasadena weather stats

Pasadena weather statistics
Hottest month: August 30.6°C 87.1°F
Driest month: July 1mm 0ins
Sunniest month: August 11.7hrs
Coldest month: January 19.4°C 66.9°F
Wettest month: January 86mm 3.4ins
Map showing location of Pasadena (34.14778, -118.14452) Pasadena map pin © Google

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