Current sea water temperature:
+73.2°F
| Minimum sea water temperature in October: | 73.6°F |
| Maximum sea water temperature in October: | 61.0°F |
| Average sea water temperature in October: | 66.8°F |
| more information | |
14 days
forecast
forecast
| San Diego |
monthly
weather
weather
| San Diego |
Sea water temperature for the last 10 days:
| October 4 | 73.2°F | September 29 | 73.0°F |
| October 3 | 73.6°F | September 28 | 73.4°F |
| October 2 | 72.9°F | September 27 | 73.6°F |
| October 1 | 72.5°F | September 26 | 74.1°F |
| September 30 | 72.9°F | September 25 | 73.9°F |
Monthly sea water temperature, °F
When is the warmest sea in San Diego?
Based on the data about daily sea water temperature for the last three years the warmest sea in San Diego was noticed in August, September and July.
Monthly Sea Temperatures in San Diego, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 72.0°F. The highest and lowest sea temperatures during the month were 75.4°F and 67.8°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 73.7°F. The highest and lowest sea temperatures during the month were 75.0°F and 72.0°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 70.0°F. The highest and lowest sea temperatures during the month were 73.9°F and 65.5°F.
current
weather
weather
| San Diego |
weather in
October
October
| San Diego |
Best time for vacation in San Diego
San Diego on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Diego
Local time: 18:55
October 04, sunday
2100
82°F
SE
7 mph
7 mph
October 05, monday
0000
81°F
SE
9 mph
9 mph
0300
79°F
S
7 mph
7 mph
0600
79°F
S
7 mph
7 mph
0900
82°F
S
4 mph
4 mph
1200
84°F
E
7 mph
7 mph
1500
82°F
SE
11 mph
11 mph
1800
81°F
SE
8 mph
8 mph
