South San Francisco, CA Weather Forecast and Current Conditions
| Day | Sky | High / Low | Precip | Wind | Humidity | |
|---|---|---|---|---|---|---|
|
Sat Jul 18 |
 |
Fog Late Close Hourly |
-º / 55º | 21% | W 18 mph | 93% |
| 10pm | |
Foggy | 57º | 15% | W 12 mph | 90% |
| 11pm | |
Foggy | 57º | 16% | W 10 mph | 91% |
|
Sun Jul 19 |
 |
Cloudy View Hourly |
66º / 57º | 20% | W 15 mph | 80% |
| 12am | |
Foggy | 57º | 16% | W 9 mph | 90% |
| 1am | |
Cloudy | 56º | 18% | W 7 mph | 92% |
| 2am | |
Cloudy | 56º | 18% | W 7 mph | 92% |
| 3am | |
Cloudy | 56º | 18% | W 7 mph | 93% |
| 4am | |
Cloudy | 56º | 19% | W 7 mph | 93% |
| 5am | |
Foggy | 56º | 15% | W 6 mph | 94% |
| 6am | |
Cloudy | 56º | 15% | W 6 mph | 96% |
| 7am | |
Cloudy | 56º | 16% | WSW 5 mph | 94% |
| 8am | |
Cloudy | 57º | 20% | WSW 5 mph | 92% |
| 9am | |
Cloudy | 58º | 20% | W 6 mph | 90% |
| 10am | |
Cloudy | 60º | 7% | WNW 7 mph | 86% |
| 11am | |
Cloudy | 61º | 7% | WNW 8 mph | 83% |
| 12pm |  |
Mostly Cloudy | 63º | 5% | WNW 9 mph | 78% |
| 1pm | |
Cloudy | 65º | 5% | WNW 11 mph | 74% |
| 2pm | |
Mostly Cloudy | 65º | 5% | WNW 14 mph | 72% |
| 3pm | |
Cloudy | 65º | 5% | W 15 mph | 72% |
| 4pm | |
Mostly Cloudy | 65º | 5% | W 15 mph | 72% |
| 5pm | |
Cloudy | 64º | 6% | W 15 mph | 73% |
| 6pm | |
Cloudy | 63º | 7% | W 14 mph | 76% |
| 7pm | |
Cloudy | 62º | 14% | W 12 mph | 80% |
| 8pm | |
Cloudy | 60º | 15% | W 12 mph | 85% |
| 9pm | |
Cloudy | 59º | 9% | W 10 mph | 88% |
| 10pm | |
Cloudy | 59º | 15% | W 9 mph | 88% |
| 11pm | |
Cloudy | 59º | 9% | W 8 mph | 89% |
|
Mon Jul 20 |
|
Mostly Cloudy View Hourly |
70º / 58º | 20% | W 14 mph | 74% |
| 12am | |
Cloudy | 59º | 21% | W 7 mph | 90% |
| 1am | |
Cloudy | 58º | 19% | W 6 mph | 91% |
| 2am | |
Cloudy | 58º | 24% | W 6 mph | 91% |
| 3am | |
Cloudy | 58º | 21% | WSW 6 mph | 91% |
| 4am | |
Cloudy | 58º | 21% | W 5 mph | 90% |
| 5am | |
Cloudy | 58º | 21% | W 5 mph | 91% |
| 6am | |
Cloudy | 58º | 21% | WSW 5 mph | 90% |
| 7am | |
Cloudy | 59º | 20% | WSW 5 mph | 90% |
| 8am | |
Cloudy | 60º | 20% | WSW 4 mph | 87% |
| 9am | |
Cloudy | 61º | 6% | W 5 mph | 84% |
| 10am | |
Mostly Cloudy | 63º | 5% | W 6 mph | 80% |
| 11am | |
Mostly Cloudy | 65º | 4% | WNW 8 mph | 77% |
| 12pm | |
Mostly Cloudy | 67º | 3% | WNW 9 mph | 72% |
| 1pm | |
Mostly Cloudy | 68º | 2% | WNW 11 mph | 68% |
| 2pm | |
Mostly Cloudy | 69º | 2% | WNW 13 mph | 65% |
| 3pm | |
Mostly Cloudy | 70º | 2% | WNW 14 mph | 63% |
| 4pm |  |
Partly Cloudy | 69º | 2% | WNW 13 mph | 64% |
| 5pm | |
Mostly Cloudy | 68º | 3% | WNW 14 mph | 67% |
| 6pm | |
Mostly Cloudy | 67º | 4% | W 13 mph | 69% |
| 7pm | |
Mostly Cloudy | 65º | 5% | WNW 12 mph | 73% |
| 8pm | |
Cloudy | 62º | 20% | WNW 11 mph | 80% |
| 9pm |  |
Mostly Cloudy | 61º | 20% | WNW 9 mph | 85% |
|
Tue Jul 21 |
|
AM Clouds/PM Sun | 76º / 61º | 23% | WNW 13 mph | 63% |
|
Wed Jul 22 |
|
Partly Cloudy | 70º / 58º | 12% | W 15 mph | 76% |
|
Thu Jul 23 |
|
AM Clouds/PM Sun | 67º / 57º | 22% | WNW 16 mph | 79% |
|
Fri Jul 24 |
|
AM Clouds/PM Sun | 68º / 56º | 20% | WNW 17 mph | 75% |
|
Sat Jul 25 |
 |
Mostly Sunny | 68º / 56º | 19% | WNW 16 mph | 75% |
-
Buoy Data
For South San Francisco, CA -
Wind Forecast
In South San Francisco, CA -
Radar
In South San Francisco, CA -
Marine Forecast
In South San Francisco, CA
Weather Radar for South San Francisco, CA See Radar
* Playback displays weather for the past 6 hours.
NOAA Weather Marine Forecast for South San Francisco, CA
Tonight
Low : 55ºF
W wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
W wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Sunday
High : 70ºF
Variable winds less than 5 kt becoming W 5 to 10 kt in the afternoon. Partly sunny. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Variable winds less than 5 kt becoming W 5 to 10 kt in the afternoon. Partly sunny. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Sunday Night
Low : 58ºF
W wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
W wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Monday
High : 73ºF
Variable winds less than 5 kt becoming W 5 to 8 kt in the afternoon. Partly sunny. N swell 0 ft. Wind waves 1 ft or less.
Variable winds less than 5 kt becoming W 5 to 8 kt in the afternoon. Partly sunny. N swell 0 ft. Wind waves 1 ft or less.
Monday Night
Low : 58ºF
W wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. N swell 0 ft. Wind waves 1 ft or less.
W wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. N swell 0 ft. Wind waves 1 ft or less.
Tuesday
High : 78ºF
Variable winds less than 5 kt becoming W 5 to 7 kt in the afternoon. Partly sunny. N swell 0 ft. Wind waves 1 ft or less.
Variable winds less than 5 kt becoming W 5 to 7 kt in the afternoon. Partly sunny. N swell 0 ft. Wind waves 1 ft or less.
Tuesday Night
Low : 60ºF
W wind 5 to 10 kt. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.
W wind 5 to 10 kt. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.
Wednesday
High : 69ºF
Variable winds less than 5 kt becoming W 5 to 10 kt in the afternoon. Mostly sunny. N swell 0 ft. Wind waves 1 ft or less.
Variable winds less than 5 kt becoming W 5 to 10 kt in the afternoon. Mostly sunny. N swell 0 ft. Wind waves 1 ft or less.
Wednesday Night
Low : 59ºF
W wind 7 to 12 kt, with gusts as high as 19 kt. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.
W wind 7 to 12 kt, with gusts as high as 19 kt. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.
NOAA Buoy Data Near South San Francisco, CA See Map
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Wind Speed Forecast for South San Francisco, CA
| Sunday | Monday | Tuesday | ||||||||||
| Wind Speed (MPH) | 12 | 7 | 6 | 7 | 14 | 14 | 9 | 6 | 5 | 6 | 13 | 13 |
| 5am | 9am | 1pm | 5pm | 9pm | 1am | 5am | 9am | 1pm | 5pm | 9pm | 1am | |
| MPH | 12 | 7 | 6 | 7 | 14 | 14 | 9 | 6 | 5 | 6 | 13 | 13 |
| DIR | W | W | W | WNW | WNW | W | W | W | WSW | W | WNW | W |
Current Weather Conditions In South San Francisco, CA
As Of: 22 minutes ago
- 57ºF
- 55ºF
- 12mph
- 0º (W)
- 20mph
- Foggy
- 0mi
- 30.02"
- 90%
- 0ºF
The weather right now in South San Francisco, CA is Foggy. The current temperature is 57°F, and the expected high and low for today, Saturday, July 18, 2026, are -° high temperature and 55°F low temperature. The wind is currently blowing at 12 miles per hour, and coming from the West. The wind is gusting to 20 mph. With the wind and the atmosphere the temperature feels like 55° Fahrenheit. Expected precipitation is 15 percent, with current humidity at 90 percent, and air pressure at 30.02 in. Visibility is 0.5 nautical miles. There are no current weather alert(s).
