Weather in San Francisco for September 2024
Until now, September 2024 in San Francisco has been nearly identical to the historical average, with a temperature of 20.5 °F (showing only a slight deviation of -0.1 °F).
Expect cooler weather in the next days in San Francisco with the forecast suggesting a temperature of 18.3 °F, lower than the historical average.
In general, the average temperature in San Francisco at the beginning of September is 21 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 18 °F by the end of September.
Precipitation in San Francisco during September is a rare event, with an average of fewer than 2 rainy days.
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San Francisco in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 19° | ||||||
2 20° | 3 23° | 4 22° | 5 22° | 6 21° | 7 20° | 8 21° |
9 20° | 10 19° | 11 21° | 12 20° | 13 21° | 14 20° | 15 20° |
16 15° | 17 14° | 18 15° | 19 18° | 20 19° | 21 22° | 22 25° |
23 22° | 24 19° | 25 19° | 26 18° | 27 16° | 28 16° | 29 20° |
30 18° |
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Temperatures trend during September in San Francisco
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
Sept. 1 | Overcast | 19° /13° | 0 mm | 4 | |
Sept. 2 | Mist | 20° /14° | 0 mm | 5 | |
Sept. 3 | Mist | 23° /13° | 0 mm | 6 | |
Sept. 4 | Mist | 22° /14° | 0 mm | 6 | |
Sept. 5 | Mist | 22° /14° | 0 mm | 6 | |
Sept. 6 | Mist | 21° /13° | 0 mm | 6 | |
Sept. 7 | Mist | 20° /12° | 0 mm | 6 | |
Sept. 8 | Fog | 21° /12° | 0 mm | 6 | |
Sept. 9 | Fog | 20° /12° | 0 mm | 5 | |
Sept. 10 | Fog | 19° /12° | 0 mm | 5 | |
Sept. 11 | Fog | 21° /12° | 0 mm | 6 | |
Sept. 12 | Mist | 20° /13° | 0 mm | 5 | |
Sept. 13 | Fog | 21° /13° | 0 mm | 6 | |
Sept. 14 | Fog | 20° /13° | 0 mm | 5 | |
Sept. 15 | Mist | 20° /13° | 0 mm | 5 | |
Sept. 16 | Partly cloudy | 15° /12° | 0 mm | 4 | |
Sept. 17 | Overcast | 14° /12° | 0 mm | 6 | |
Sept. 18 | Fog | 15° /13° | 0 mm | 5 | |
Sept. 19 | Sunny | 18° /13° | 0 mm | 6 | |
Sept. 20 | Sunny | 19° /13° | 0 mm | 4 | |
Sept. 21 | Sunny | 22° /14° | 0 mm | 5 | |
Sept. 22 | Sunny | 25° /16° | 0 mm | 5 | |
Sept. 23 | Sunny | 22° /14° | 0 mm | 5 | |
Sept. 24 | Sunny | 19° /13° | 0 mm | 4 | |
Sept. 25 | Sunny | 19° /14° | 0 mm | 5 | |
Sept. 26 | Sunny | 18° /14° | 0 mm | 5 | |
Sept. 27 | Patchy rain possible | 16° /14° | 0 mm | 3 | |
Sept. 28 | Sunny | 16° /13° | 0 mm | 4 | |
Sept. 29 | Partly cloudy | 20° /13° | 0 mm | 6 | |
Sept. 30 | Light rain shower | 18° /14° | 1.9 mm | 4 | |
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