5-day weather forecast San Francisco Oct 9, 2026
18°Weather forecast San Francisco Friday Oct 9, 2026: sunny, temperature from 16 °C to 18 °C.
Precipitation probability 12%. Wind up to 7.31 m/s (gusts 9.69 m/s). Air humidity 72–85%, atmospheric pressure 754–757 mm Hg, UV index up to 5.4.
Weather Alerts
Coastal Flood Advisory issued October 7 at 12:33PM PDT until October 13 at 3:00PM PDT by NWS San Francisco CA
Coastal Flood Advisory
* WHAT...Up to 1.2 ft of inundation above ground level is
possible in low-lying areas near shorelines and tidal waterways.
* WHERE...Bayshore locations along the San Francisco and Monterey
Bays.
* WHEN...From 9 AM Friday to 3 PM PDT Tuesday.
* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected. High tides will result in
flooding along coastal trails, cut off access to some low-
lying beaches and coastal areas, and bring water and waves
farther up the beach than typical.
* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide
is expected to be 1.0 ft above normal (6.86 ft MLLW) at 11:22
AM Friday 10/9, 1.2 ft above normal (7.06 ft MLLW) at 11:50 AM
Saturday 10/10, 1.2 ft above normal (7.08 ft MLLW) at 12:18 PM
Sunday 10/11, 1.2 ft above normal (7.03 ft MLLW) at 12:46 PM
Monday 10/12, 1.1 ft above normal (6.90 ft MLLW) at 1:14 PM
Tuesday 10/13, and 0.9 ft above normal (6.72 ft MLLW) at 1:46 PM
Wednesday 10/14. These predictions include up to 1.0 ft of
surge that will enhance the astronomical tide and flooding
threat. High tide varies up to 90 minutes earlier or later along
the Pacific Coast and through the San Francisco Bay,
respectively.
If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.
5 days at a glance — tap a day to open it
Sunrise 07:12
Sunset 18:41
Sunset 18:41
New Moon1% illuminated
Moonrise 06:04 · Moonset 17:59
Moonrise 06:04 · Moonset 17:59
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 17 °C | 10% | 0% | 81% | 757 mm Hg | SW 235° 3.39 (3.69) m/s | 0 |
| 01:00 | Clear | 17 °C | 10% | 0% | 81% | 756 mm Hg | SW 233° 3.39 (3.92) m/s | 0 |
| 02:00 | Clear | 17 °C | 10% | 0% | 82% | 756 mm Hg | SW 235° 3.11 (3.61) m/s | 0 |
| 03:00 | Clear | 17 °C | 10% | 0% | 82% | 756 mm Hg | SW 229° 2.69 (3.11) m/s | 0 |
| 04:00 | Clear | 16 °C | 10% | 0% | 82% | 755 mm Hg | WSW 237° 2.69 (3) m/s | 0 |
| 05:00 | Clear | 16 °C | 10% | 0% | 83% | 755 mm Hg | SW 236° 2.81 (3.22) m/s | 0 |
| 06:00 | Clear | 16 °C | 11% | 0% | 84% | 756 mm Hg | SW 232° 2.81 (3.22) m/s | 0 |
| 07:00 | Clear | 16 °C | 11% | 0% | 84% | 756 mm Hg | SW 222° 2.61 (2.92) m/s | 0 |
| 08:00 | Sunny | 16 °C | 10% | 0% | 83% | 756 mm Hg | SW 217° 2.39 (2.83) m/s | 0.1 |
| 09:00 | Sunny | 17 °C | 9% | 0% | 80% | 756 mm Hg | WSW 240° 2.61 (2.92) m/s | 0.7 |
| 10:00 | Sunny | 17 °C | 8% | 0% | 77% | 756 mm Hg | SW 230° 2.81 (3.22) m/s | 1.8 |
| 11:00 | Sunny | 18 °C | 7% | 0% | 74% | 756 mm Hg | WSW 242° 3.31 (3.61) m/s | 3.3 |
| 12:00 | Sunny | 18 °C | 7% | 0% | 73% | 756 mm Hg | WSW 239° 3.5 (3.92) m/s | 4.7 |
| 13:00 | Sunny | 18 °C | 6% | 0% | 72% | 755 mm Hg | SW 235° 4.39 (5.19) m/s | 5.4 |
| 14:00 | Sunny | 18 °C | 6% | 0% | 72% | 755 mm Hg | WSW 239° 6.31 (7.11) m/s | 5.1 |
| 15:00 | Sunny | 18 °C | 7% | 1% | 73% | 755 mm Hg | WSW 242° 6.89 (7.92) m/s | 3.9 |
| 16:00 | Sunny | 18 °C | 8% | 7% | 76% | 755 mm Hg | WSW 237° 6.81 (7.72) m/s | 2.3 |
| 17:00 | Sunny | 17 °C | 9% | 10% | 77% | 754 mm Hg | SW 232° 6.69 (7.81) m/s | 1 |
| 18:00 | Sunny | 17 °C | 10% | 9% | 82% | 755 mm Hg | SW 235° 7.31 (8.5) m/s | 0.2 |
| 19:00 | Clear | 16 °C | 11% | 7% | 84% | 754 mm Hg | SW 231° 6.69 (8.11) m/s | 0 |
| 20:00 | Clear | 16 °C | 11% | 4% | 85% | 755 mm Hg | SW 225° 6.5 (8.22) m/s | 0 |
| 21:00 | Clear | 16 °C | 11% | 0% | 84% | 754 mm Hg | SW 218° 6.39 (8.31) m/s | 0 |
| 22:00 | Clear | 16 °C | 11% | 1% | 84% | 754 mm Hg | SSW 212° 6.39 (8.61) m/s | 0 |
| 23:00 | Clear | 16 °C | 12% | 7% | 85% | 754 mm Hg | SSW 211° 7.19 (9.69) m/s | 0 |
San Francisco on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.