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Things to Do in California in September
Real historical weather for California in September: average highs of 34°C and lows of 18°C, with around 6mm of rain (averaged over the last 3 years).
34°C
Average high
18°C
Average low
6mm
Typical rainfall
Real things to do in California in September
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Small Group Yosemite and Giant Sequoias Day Trip from San Francisco
★ 4.9(4,037 reviews)· 14 hrs
From €213

California Desert, Seven Magic Mountains and Las Vegas Sign
★ 4.8(171 reviews)· 2 hrs
From €53

California Desert, Seven Magic Mountains and Las Vegas Sign
★ 4.7(142 reviews)· 2 hrs
From €44

Driving the California Coast: A Self-Guided Audio Tour
★ 4.6(17 reviews)· 2h 30m
From €13

Joshua Tree National Park Self-Guided Driving Audio Tour
★ 4.5(801 reviews)· 4 hrs
From €15

California Academy of Sciences NightLife Admission Ticket
★ 4.3(50 reviews)· 4 hrs
From €23

California Academy of Sciences General Admission Ticket
★ 4.2(608 reviews)· 5 hrs
From €44

Northern California: Self-Guided Gold Rush Towns Driving Tour
★ 4.0(3 reviews)· 3 hrs
From €13

Stanford University Personalized Self-Guided App Tour
★ 3.7(6 reviews)· 3 hrs
From €4

All California Self Guided Audio Tours, from SF to LA
· 7 days
From €10
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FAQs — California in September
Based on real historical data (averaged over the last 3 years), expect highs around 34°C and lows around 18°C, with roughly 6mm of rain.