Santa Barbara weather
Our guide to the weather in Santa Barbara during September
We've looked at the most up-to-date weather data for Santa Barbara, 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 Santa Barbara weather in September.
How warm is it in Santa Barbara during September?
The temperature reaches around 28℃ during the daytime in September, falling away to 16℃ 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 Santa Barbara during September?
The answer is no. Santa Barbara is typically bone dry in September. You're not likely to see a thunderstorm during your trip.
Is it windy in Santa Barbara 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 and mild air temperatures, the breeze will have a slight cooling effect.
Weather in Santa Barbara
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