World Resorts USA San Jose Weather

San Jose sea water temperature

Current sea water temperature:
+66.6°F
Minimum sea water temperature in June: 70.3°F
Maximum sea water temperature in June: 51.6°F
Average sea water temperature in June: 60.5°F

Sea water temperature for the last 10 days:

June 5 66.6°F May 30 63.9°F
June 4 66.6°F May 29 63.5°F
June 3 66.6°F May 28 63.9°F
June 1 64.6°F May 27 64.4°F
May 31 64.4°F May 26 64.0°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:
2025
2024
2023

The average sea water temperature in August of 2025 was 67.0°F. The highest and lowest sea temperatures during the month were 70.3°F and 62.2°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 67.5°F. The highest and lowest sea temperatures during the month were 72.3°F and 64.4°F.

Best time for vacation in San Jose

Sunniest months:
July 29 days
August 29 days
June 25 days
Warmest months:
July 85.8 °F
August 85.6 °F
September 81.0 °F
Warmest sea temp:
September 63.4 °F
August 62.9 °F
July 62.8 °F
Coldest months:
December 56.8 °F
January 58.0 °F
February 59.5 °F
Rainiest months:
February 3 days
January 3 days
March 3 days
Windiest months:
May 6.3 mph
June 6.2 mph
April 6.1 mph

San Jose on a weather map

San Jose
+81°F
E 9 mph
Feels like: +79°F
Precip.: 0%
Places in USA:
Name
°F
+77°F
+77°F
+106°F
+75°F
+75°F
+81°F
+72°F
+77°F
+66°F
+75°F
+66°F
+81°F
+84°F
+79°F
+70°F
24 Hours Forecast
San Jose
Local time: 18:00
June 05, friday
2100
66°F
E
4 mph
June 06, saturday
0000
61°F
E
3 mph
0300
52°F
E
3 mph
0600
50°F
NE
2 mph
0900
63°F
E
4 mph
1200
73°F
E
7 mph
1500
75°F
SE
10 mph
1800
66°F
SE
9 mph
Units of measurement: °C / °F