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South San Francisco, CA Weather

Updated: Sun Apr 20th 2025 10:00 AM PDT

Partly Cloudy

55^°F 13^°C

Feels Like 54^°F / 12^°C

South San Francisco, CA weather condition is Partly Cloudy and 55°F.

Today's Weather in South San Francisco,CA

The current weather in South San Francisco CA as of 10:00 AM PDT on Sun Apr 20th 2025, has a sky condition of Partly Cloudy with the visibility of 9 mile(s) and the UV index at 3.4. It is 55 degrees fahrenheit but feels like 54 degrees. The barometric pressure is 30.11 - measured by inches of mercury - and is steady since its last observation. The humidity is 74 percent that's falling since the last report, with a dew point of 50 degrees fahrenheit which is rising. Wind direction is from the West at 4.7 miles per hour, gusting at 5.5 miles per hour. Sunrise was at 6:27 AM and Sunset is at 7:51 PM. The moon phase is a Last Quarter moon rising at 2:25 AM. Thank you for listening to the weather report from LocalConditions.com!

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Barometer 30.11 inHg. steady
Humidity 74% falling
Heat Index 54°F
Wind from W. 4.7 mph
Wind Gust 5.5 miles per hour
Wind Chill 54°F
UV Index 3.4

Dew Point 50°F rising
Visibility 9 mi.
Sunrise 6:27 AM
Sunset 7:51 PM
Moonrise 2:25 AM
Moonset 11:51 AM
Moon Phase Last Quarter Moon

Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

5 Day Forecast

Mist

Mist with a high of 60°F and a low of 49°F. Winds will be moderate, blowing around 12mph. Expect high humidity with levels above 80% to 91%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 60° \| Lo 49°	91%	0%	0%	11.6 mph

Mist

Mist with a high of 55°F and a low of 49°F. Winds will be moderate, blowing around 15mph. Expect high humidity with levels above 80% to 92%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 55° \| Lo 49°	92%	0%	0%	14.1 mph

Overcast

Overcast with a high of 56°F and a low of 48°F. Winds will be moderate, blowing around 14mph. Expect high humidity with levels above 80% to 88%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 56° \| Lo 48°	88%	0% \| est. 0in	0%	13.9 mph

Patchy Rain Nearby

Patchy Rain Nearby with a high of 54°F and a low of 51°F. Probable rainfall forecasted, having an 85% chance with an estimated 0.02in. Winds will be moderate, blowing around 15mph. The humidity will be on the higher side, reaching around 76%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 54° \| Lo 51°	76%	85% \| est. 0.02in	0%	15 mph

Partly Cloudy

Partly Cloudy with a high of 56°F and a low of 51°F. Winds will be moderate, blowing around 13mph. The humidity will be on the higher side, reaching around 71%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 56° \| Lo 51°	71%	0% \| est. 0in	0%	13 mph

Yesterday Tomorrow 5-Day

Weather Radar Map

With the potential for severe weather, especially in areas prone to flooding and other adverse conditions, it's important to stay updated with local forecasts and advisories, check out the current and projected visualizations below for accurate South San Francisco, CA weather - as well as surrounding cities related to this location - which offers live data and granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Thursday, as you toggle through each layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the forecasts. Be Well and Stay Safe!

Hourly Temperature

The current temperature today is 55^°F. The morning temperature of 49°^F is lowest at 12am with the daytime high of 57°^F at 1pm and a low around 51°^F at 10pm is expected.