| Point Forecast: San Francisco CA 37.77N 122.41W (Elev. 40 m) |
Last Update: 2:11 pm PDT May 13, 2026 |
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| Date | 05/13 | 05/14 | ||||||||||||||||||||||
| Hour (PDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°C) | 19 | 19 | 19 | 18 | 18 | 17 | 16 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 12 | 12 | 13 | 15 | 17 | 18 | 19 | 21 |
| Dewpoint (°C) | 11 | 11 | 11 | 10 | 11 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 10 | 10 | 10 | 12 | 12 | 12 | 13 | 13 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 14 | 15 | 15 | 14 | 13 | 10 | 8 | 7 | 6 | 5 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 7 | 8 |
| Wind Dir | W | W | W | W | W | W | W | W | WSW | WSW | WSW | WSW | SW | SW | SSW | SSW | SW | SW | S | SSW | SW | WSW | WSW | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 7 | 5 | 3 | 5 | 5 | 5 | 9 | 8 | 9 | 9 | 15 | 12 | 19 | 20 | 20 | 21 | 27 | 19 | 19 | 17 | 16 | 14 | 9 | 8 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 62 | 59 | 58 | 58 | 62 | 64 | 67 | 70 | 75 | 79 | 82 | 84 | 86 | 88 | 89 | 90 | 90 | 88 | 84 | 80 | 76 | 70 | 66 | 62 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/15 | |||||||||||||||||||||||
| Hour (PDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°C) | 21 | 21 | 21 | 20 | 19 | 19 | 17 | 16 | 16 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 14 | 16 | 17 | 19 | 21 | 22 |
| Dewpoint (°C) | 13 | 12 | 12 | 12 | 12 | 11 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 11 | 11 | 12 | 12 | 12 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 10 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 7 | 7 | 7 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 6 | 6 | 6 |
| Wind Dir | W | W | W | W | W | W | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WNW | WNW | WNW | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 7 | 5 | 5 | 10 | 10 | 10 | 21 | 21 | 21 | 31 | 31 | 31 | 27 | 27 | 27 | 28 | 28 | 28 | 5 | 5 | 5 | 1 | 1 | 1 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 60 | 58 | 57 | 58 | 59 | 60 | 61 | 65 | 68 | 72 | 75 | 77 | 78 | 80 | 80 | 84 | 82 | 80 | 77 | 72 | 67 | 63 | 59 | 56 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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