Current sea water temperature:
+76.3°F
| Minimum sea water temperature in September: | 81.1°F |
| Maximum sea water temperature in September: | 69.6°F |
| Average sea water temperature in September: | 76.1°F |
| more information | |
14 days
forecast
forecast
| San Jose |
monthly
weather
weather
| San Jose |
Sea water temperature for the last 10 days:
| September 11 | 76.3°F | September 6 | 78.6°F |
| September 10 | 77.4°F | September 5 | 77.7°F |
| September 9 | 78.4°F | September 4 | 75.4°F |
| September 8 | 79.7°F | September 3 | 73.8°F |
| September 7 | 79.3°F | September 2 | 72.3°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 August, September and July.
Monthly Sea Temperatures in San Jose, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 79.9°F. The highest and lowest sea temperatures during the month were 84.7°F and 70.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 77.3°F. The highest and lowest sea temperatures during the month were 79.9°F and 75.0°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 78.9°F. The highest and lowest sea temperatures during the month were 81.5°F and 77.5°F.
current
weather
weather
| San Jose |
weather in
September
September
| San Jose |
Best time for vacation in San Jose
San Jose on a weather map
Places in Spain:
Name
°F
24 Hours Forecast
San Jose
Local time: 22:57
September 12, saturday
0000
75°F
W
12 mph
12 mph
0300
75°F
W
11 mph
11 mph
0600
73°F
W
12 mph
12 mph
0900
73°F
SW
15 mph
15 mph
1200
77°F
W
19 mph
19 mph
1500
79°F
W
22 mph
22 mph
1800
79°F
W
23 mph
23 mph
2100
77°F
W
23 mph
23 mph
