Measurements:
°C
°F
San Francisco
46°F
S 2 mph
Feels like: 46°F
Precip: 0%
World Resorts USA San Francisco Weather April Weather in San Francisco

San Francisco Weather: April

Average Day Temperature: 59.0°F
Average Night Temperature: 50.9°F
Sea Water Temperature: 56.6°F
Number of Sunny Days: 17 days
Sunshine Hours: 12.6 - 13.7 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.8 in

Air Temperature in April, °F

Select Year: 2025 2024 2023

The highest day temperature in April 2025 was 68°F. The lowest night temperature was 48°F. The average values for day and night temperatures during April were 56.7°F и 50.7°F respectivly.

San Francisco Water Sea Temperature in April, °F

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for San Francisco was 57.1°F. The maximum and minimum values were 55.0°F and 59.6°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in April are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in April, in

Precipitation total in April for San Francisco is 0.8 in.

Wind Speed in April, mph

The average wind speed in April is 9.4 mph. It makes April one of the most windy months of the year for San Francisco.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for San Francisco in April is 8.9 hours.

Best Time to Visit San Francisco
The most sunny months:
October 18 days
June 18 days
May 17 days
The most warm months:
August 67.2 °F
September 66.7 °F
October 65.7 °F
Warmest sea temperature:
September 63.4 °F
August 63.0 °F
October 61.8 °F
The most cold months:
December 54.7 °F
January 55.1 °F
February 56.1 °F
The most rainy months:
March 4 days
December 4 days
January 4 days
The most windy months:
May 9 mph
June 9 mph
April 9 mph

San Francisco on the Weather Map

USA Resorts:
NAME
Chicago -2
Hawaii +78
Honolulu +78
Houston +44
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
San Francisco
Local time: 00:38
05 dec, friday
0300 46°F
SW
3 mph
0600 48°F
SW
4 mph
0900 48°F
SW
5 mph
1200 48°F
SW
3 mph
1500 50°F
SE
2 mph
1800 50°F
E
4 mph
2100 52°F
E
3 mph
06 dec, saturday
0000 52°F
N
2 mph