Tiburon Weather in September

What's the weather like in Tiburon (California) in September 2025?

The climate in Tiburon during September can be summarized as mild and very dry.

September is in the fall / autumn in Tiburon and is typically the warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (73°F), whilst at night 13°C (55°F) is normal.

Tiburon weather averages (imperial / metric)
Daytime temperature 22.6°C 72.7°F
Nightly temperature 12.6°C 54.7°F
Average temperature 17.6°C 63.7°F
Daily sunshine 10.1 hrs
Avg rainfall 9 mm 0.4 ins
Rainy days 2 days
Sea temperature 14.4°C 57.9°F
Humidity 69%
Windspeed 16.2kph 10 mph

On average September is the 4th driest month of the year in Tiburon with around 9mm 0.4 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 10.1 hours of sunshine per day.

September temperatures in Tiburon

Tiburon average temperature in September

September rainfall

Tiburon average rain in September

September hourly sunshine

Tiburon average rain in September

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 Tiburon in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Tiburon weather stats

Tiburon weather statistics
Hottest month: September 22.4°C 72.3°F
Driest month: July 2mm 0.1ins
Sunniest month: April 11.1hrs
Coldest month: January 13.5°C 56.3°F
Wettest month: January 174mm 6.9ins
Map showing location of Tiburon (37.87354, -122.45664) Tiburon map pin © Google

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