Measurements:
°C
°F
San Jose
56°F
SW 12 mph
Feels like: 54°F
Precip: 100%
World Resorts Spain San Jose Weather

San Jose Sea Water Temperature

Current Sea Water Temperature:
+64.0°F
Maximum Sea Water Temperature in December: 67.2°F
Minimum Sea Water Temperature in December: 59.4°F
Average water temperature in December: 63.3°F

Sea Water Temperature for the Last 10 Days:

December 14 64.0°F December 09 64.4°F
December 13 64.4°F December 08 64.4°F
December 12 64.2°F December 07 64.6°F
December 11 64.0°F December 06 64.8°F
December 10 64.0°F December 05 65.4°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 61.5 °F
February 62.6 °F
December 64.0 °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: 10:00
14 dec, sunday
1200 56°F
SW
12 mph
1500 62°F
SW
14 mph
1800 58°F
SW
12 mph
2100 58°F
S
10 mph
15 dec, monday
0000 56°F
SW
9 mph
0300 56°F
S
9 mph
0600 56°F
S
9 mph
0900 56°F
S
6 mph