Sacramento weather
Our guide to the weather in Sacramento during September
We've looked at the most up-to-date weather data for Sacramento, covering the last 12 years up to 2026, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Sacramento weather in September.
How hot is it in Sacramento during September?
The temperature reaches around 34℃ during the daytime in September, falling away to 17℃ at night. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.
Does it rain in Sacramento during September?
On average, in September you'll see rain on just one day in the month. In other words, you shouldn't see any of the wet stuff. You're not likely to see a thunderstorm during your trip.
Is it windy in Sacramento during September?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in September. With moderate humidity, any breeze will have a welcome cooling effect.
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