Measurements:
°C
°F
San Diego
60°F
SW 2 mph
Feels like: 58°F
Precip: 0%
World Resorts USA San Diego Weather

7 Day Weather Forecast

01.29
thu
DAY
82°F
E 2 mph
precip
0%
NIGHT
56°F
S 2 mph
precip
0%
01.30
fri
DAY
72°F
S 3 mph
precip
0%
NIGHT
60°F
S 2 mph
precip
0%
01.31
sat
DAY
82°F
S 2 mph
precip
0%
NIGHT
66°F
S 1 mph
precip
0%
02.01
sun
DAY
72°F
E 7 mph
precip
0%
NIGHT
64°F
N 4 mph
precip
0%
02.02
mon
DAY
68°F
NE 6 mph
precip
0%
NIGHT
62°F
NE 1 mph
precip
0%
02.03
tue
DAY
72°F
SE 6 mph
precip
0%
NIGHT
64°F
NW 3 mph
precip
0%
02.04
wed
DAY
76°F
SW 7 mph
precip
0%
NIGHT
64°F
SW 6 mph
precip
0%

San Diego Sea Water Temperature in January, °F

Select Year: 2026 2025 2024

The average sea surface temperature in January 2026 for San Diego was 16.4°F. The maximum and minimum values were 15.9°F and 17.1°F respectively.

San Diego on the Weather Map

Best Time to Visit San Diego
The most sunny months:
July 21 days
August 20 days
June 20 days
The most warm months:
August 82.1 °F
September 81.0 °F
July 79.1 °F
Warmest sea temperature:
August 72.1 °F
September 71.1 °F
July 70.8 °F
The most cold months:
February 64.8 °F
January 65.0 °F
December 65.2 °F
The most rainy months:
March 2 days
February 2 days
January 2 days
The most windy months:
May 7 mph
April 7 mph
March 7 mph