Livermore Weather in September

With daytime temperatures of 30°C (86°F) and nighttime lows of 13°C (55°F), September in Livermore brings high temperatures during the day. The excellent weather makes it an appealing time to visit.

Rainfall in Livermore in September

Historically, September sees about a single day of rain, with a monthly average of 2.9 mm (0.1 in). If rain does fall, it tends to be very light and barely worth getting out an umbrella for.

Temperature in Livermore in September

September tends to be one of the excellent months in Livermore, with 30°C (86°F) in the afternoon and 13°C (55°F) overnight. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 13°C (55°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Livermore in September

Enjoy a sunny month with about 270 hours of sunshine, the clear skies make Livermore even more beautiful.

For Livermore itself, April, May, June and October generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Select a Month

Check the conditions for any month of the year.

• January
• February
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• May
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• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Livermore's climate page.

Livermore Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 3%  

Precipitation 2.9 mm (0.1 in)  

Rainy days a single day  

Humidity 73% *  

Sunshine 270 hours *  

Percentage Sunshine 73% *  

* Data from: San Francisco, the United States of America (54 KM, 33 Miles).

What to Wear in Livermore in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Almost no rain is expected, so no need to bring rain gear. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Livermore in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Livermore's climate page.

More climate data for Livermore

Temperature Rainfall Sunshine Humidity

See the full Livermore climate overview or explore weather in the United States of America.