Measurements:
°C
°F
San Jose
84°F
SE 8 mph
Feels like: 84°F
Precip: 11%
World Resorts USA San Jose Weather

7 Day Weather Forecast

08.25
tue
DAY
72°F
SE 6 mph
precip
20%
NIGHT
66°F
S 6 mph
precip
11%
08.26
wed
DAY
92°F
SE 6 mph
precip
1%
NIGHT
64°F
SE 6 mph
precip
4%
08.27
thu
DAY
92°F
SE 7 mph
precip
0%
NIGHT
64°F
SE 6 mph
precip
1%
08.28
fri
DAY
90°F
SE 6 mph
precip
1%
NIGHT
62°F
SE 6 mph
precip
4%
08.29
sat
DAY
88°F
E 6 mph
precip
0%
NIGHT
54°F
SE 5 mph
precip
11%
08.30
sun
DAY
80°F
SE 6 mph
precip
5%
NIGHT
52°F
N 1 mph
precip
11%
08.31
mon
DAY
76°F
SE 6 mph
precip
0%
NIGHT
50°F
SE 5 mph
precip
13%

San Jose Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for San Jose was 21.2°F. The maximum and minimum values were 20.0°F and 22.1°F respectively.

San Jose on the Weather Map

Best Time to Visit San Jose
The most sunny months:
July 29 days
August 29 days
June 25 days
The most warm months:
August 89.6 °F
July 89.5 °F
September 84.5 °F
Warmest sea temperature:
August 64.9 °F
September 64.9 °F
July 64.6 °F
The most cold months:
December 57.5 °F
January 58.9 °F
February 60.6 °F
The most rainy months:
February 3 days
January 3 days
March 3 days
The most windy months:
May 6 mph
April 6 mph
June 6 mph