Measurements:
°C
°F
San Jose
78°F
E 4 mph
Feels like: 80°F
Precip: 2%
World Resorts Spain San Jose Weather

San Jose Sea Water Temperature

Current Sea Water Temperature:
+81.8°F
Maximum Sea Water Temperature in July: 85.8°F
Minimum Sea Water Temperature in July: 68.0°F
Average water temperature in July: 78.6°F

Sea Water Temperature for the Last 10 Days:

July 09 81.8°F July 04 81.2°F
July 08 82.4°F July 03 81.0°F
July 07 81.6°F July 02 81.6°F
July 06 81.2°F July 01 80.6°F
July 05 81.0°F June 30 79.6°F

When is the Warmest Sea for San Jose?

According to our data for the last three years for San Jose the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for San Jose was 82.4°F. The maximum and minimum values were 80.6°F and 84.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for San Jose was 80.3°F. The maximum and minimum values were 77.8°F and 83.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for San Jose was 82.0°F. The maximum and minimum values were 76.8°F and 84.8°F respectively.

Best Time to Visit San Jose
The most sunny months:
July 30 days
August 29 days
June 28 days
The most warm months:
August 92.6 °F
July 91.9 °F
September 85.8 °F
Warmest sea temperature:
August 81.5 °F
September 79.0 °F
July 78.5 °F
The most cold months:
January 61.3 °F
February 62.6 °F
December 63.7 °F
The most rainy months:
January 1 day
November 1 day
February 1 day
The most windy months:
March 9 mph
April 9 mph
February 9 mph

San Jose on the Weather Map

24 Hours Weather Forecast
San Jose
Local time: 04:48
10 jul, friday
0600 78°F
E
4 mph
0900 86°F
NE
3 mph
1200 88°F
NE
8 mph
1500 90°F
NE
12 mph
1800 90°F
NE
11 mph
2100 84°F
NE
5 mph
11 jul, saturday
0000 80°F
NE
7 mph
0300 78°F
E
5 mph