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| Point Forecast: San Francisco CA 37.77N 122.41W (Elev. 40 m) |
Last Update: 2:50 am PDT Sep 27, 2023 |
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| Date | 09/27 | 09/28 | ||||||||||||||||||||||
| Hour (PDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°C) | 19 | 21 | 22 | 22 | 23 | 22 | 21 | 21 | 19 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 16 |
| Dewpoint (°C) | 12 | 13 | 13 | 14 | 15 | 16 | 16 | 16 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 11 | 11 | 12 | 12 | 13 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 6 | 7 | 8 | 10 | 14 | 16 | 16 | 17 | 15 | 14 | 13 | 11 | 10 | 9 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 3 | 3 |
| Wind Dir | WNW | WNW | W | W | W | W | W | W | W | W | W | W | W | W | W | W | WSW | WSW | WSW | SW | S | S | SSW | SSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 12 | 6 | 4 | 3 | 2 | 2 | 1 | 0 | 0 | 6 | 8 | 11 | 11 | 14 | 16 | 15 | 11 | 11 | 57 | 57 | 57 | 57 | 57 | 57 |
| 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 (%) | 63 | 60 | 59 | 59 | 61 | 67 | 68 | 72 | 75 | 80 | 80 | 79 | 79 | 78 | 80 | 83 | 83 | 83 | 87 | 86 | 86 | 87 | 86 | 82 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/29 | |||||||||||||||||||||||
| Hour (PDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°C) | 18 | 19 | 21 | 21 | 22 | 22 | 22 | 21 | 20 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 15 | 16 | 17 |
| Dewpoint (°C) | 13 | 13 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 13 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 3 | 5 | 5 | 5 | 10 | 10 | 10 | 14 | 14 | 14 | 10 | 10 | 10 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Wind Dir | WSW | W | W | W | W | W | W | W | W | W | W | W | W | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 33 | 9 | 9 | 9 | 3 | 3 | 3 | 1 | 1 | 1 | 3 | 3 | 3 | 5 | 5 | 5 | 11 | 11 | 11 | 7 | 7 | 7 | 8 | 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 (%) | 74 | 66 | 60 | 57 | 56 | 56 | 57 | 60 | 63 | 67 | 70 | 73 | 74 | 75 | 76 | 77 | 77 | 77 | 78 | 78 | 79 | 80 | 80 | 78 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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