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San Diego weather in September 2022
- 2626°C max day temperature
- 11 day with some rainfall
- 1717°C min night temperature
- 1212 hours of daylight per day
- LLow heat & humidity
- 44 mm of monthly rainfall
- 88 (Very High) UV index
- 2020°C sea temperature
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The September weather guide for California (San Diego) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
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How hot is it in San Diego in September?
Daytime temperatures usually reach 26°C in San Diego in September with low heat and humidity, falling to 17°C at night.
How sunny is it in San Diego in September?
There are normally 9 hours of bright sunshine each day in San Diego in September - that's 70% of daylight hours.
How warm is the sea around San Diego in September?
The average sea temperature around San Diego in September is 20°C.
Does it ever rain in San Diego in September?
There is usually 1 day with some rain in San Diego in September and the average monthly rainfall is 4mm.
What is the chance of a hurricane in San Diego in September?
On average less than 1 day in September in San Diego is likely to be affected by the passage of one or more tropical storms.
San Diego September sunrise & sunset times
Browse the sunrise and sunset times for San Diego in September 2022. Select a month to view San Diego sunrise and sunset times for the next 12 months.
|Date||Sunrise times||Sunset times|
|Thursday, 1st September 2022||06:23||19:13|
|Thursday, 15th September 2022||06:32||18:55|
|Friday, 30th September 2022||06:42||18:34|
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