Current sea water temperature:
+70.9°F
| Minimum sea water temperature in August: | 71.8°F |
| Maximum sea water temperature in August: | 55.0°F |
| Average sea water temperature in August: | 63.2°F |
| more information | |
14 days
forecast
forecast
| San Jose |
monthly
weather
weather
| San Jose |
Sea water temperature for the last 10 days:
| August 25 | 70.9°F | August 20 | 68.0°F |
| August 24 | 69.1°F | August 19 | 68.5°F |
| August 23 | 68.9°F | August 18 | 68.5°F |
| August 22 | 68.7°F | August 17 | 69.6°F |
| August 21 | 68.7°F | August 16 | 69.8°F |
Monthly sea water temperature, °F
When is the warmest sea in San Jose?
Based on the data about daily sea water temperature for the last three years the warmest sea in San Jose was noticed in September, August and July.
Monthly Sea Temperatures in San Jose, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 69.5°F. The highest and lowest sea temperatures during the month were 72.5°F and 66.7°F.
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 70.1°F. The highest and lowest sea temperatures during the month were 71.8°F and 68.0°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 69.0°F. The highest and lowest sea temperatures during the month were 71.2°F and 66.2°F.
current
weather
weather
| San Jose |
weather in
August
August
| San Jose |
Best time for vacation in San Jose
San Jose on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Jose
Local time: 12:33
August 25, tuesday
1500
90°F
S
7 mph
7 mph
1800
81°F
S
8 mph
8 mph
2100
70°F
SE
4 mph
4 mph
August 26, wednesday
0000
66°F
SE
4 mph
4 mph
0300
64°F
S
2 mph
2 mph
0600
64°F
SE
2 mph
2 mph
0900
73°F
S
4 mph
4 mph
1200
88°F
S
6 mph
6 mph
