Measurements:
°C
°F
San Francisco
54°F
NE 6 mph
Feels like: 56°F
Precip: 0%
World Resorts USA San Francisco Weather

7 Day Weather Forecast

04.17
thu
DAY
54°F
NE 6 mph
precip
0%
NIGHT
50°F
NE 7 mph
precip
0%
04.18
fri
DAY
50°F
E 7 mph
precip
0%
NIGHT
50°F
NE 7 mph
precip
0%
04.19
sat
DAY
50°F
NE 9 mph
precip
0%
NIGHT
48°F
NE 7 mph
precip
0%
04.20
sun
DAY
58°F
E 7 mph
precip
0%
NIGHT
52°F
NE 7 mph
precip
0%
04.21
mon
DAY
62°F
E 6 mph
precip
0%
NIGHT
52°F
NE 7 mph
precip
0%
04.22
tue
DAY
56°F
E 12 mph
precip
0%
NIGHT
50°F
E 11 mph
precip
0%
04.23
wed
DAY
58°F
NE 6 mph
precip
0%
NIGHT
50°F
E 13 mph
precip
0%

San Francisco Sea Water Temperature in April, °F

Select Year: 2025 2024 2023
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The average sea surface temperature in April 2025 for San Francisco was 13.6°F. The maximum and minimum values were 12.9°F and 14.8°F respectively.

San Francisco on the Weather Map

Best Time to Visit San Francisco
The most sunny months:
June 19 days
May 18 days
April 18 days
The most warm months:
August 67.6 °F
September 66.7 °F
October 65.5 °F
Warmest sea temperature:
September 63.2 °F
August 62.8 °F
October 61.6 °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 10 mph
June 9 mph
April 9 mph