Palo Alto Weather in September

What's the weather like in Palo Alto (California) in September 2024?

The climate in Palo Alto during September can be summarized as warm and very dry.

September is in the fall / autumn in Palo Alto and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (78°F), whilst at night 13°C (55°F) is normal.

Palo Alto weather averages (imperial / metric)
Daytime temperature 25.8°C 78.4°F
Nightly temperature 12.6°C 54.7°F
Average temperature 19.2°C 66.6°F
Daily sunshine 10.3 hrs
Avg rainfall 4 mm 0.2 ins
Rainy days 1 days
Sea temperature 14.4°C 57.9°F
Humidity 68%
Windspeed 15.8kph 10 mph

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

On the flip side this corresponds to an average of 10.3 hours of sunshine per day.

September temperatures in Palo Alto

Palo Alto average temperature in September

September rainfall

Palo Alto average rain in September

September hourly sunshine

Palo Alto 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 Palo Alto in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Palo Alto weather stats

Palo Alto weather statistics
Hottest month: August 25.6°C 78.1°F
Driest month: July 1mm 0ins
Sunniest month: April 11.2hrs
Coldest month: January 13.9°C 57°F
Wettest month: January 87mm 3.4ins
Map showing location of Palo Alto (37.44188, -122.14302) Palo Alto map pin © Google

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