Current sea water temperature:
+86.2°F
| Minimum sea water temperature in September: | 87.8°F |
| Maximum sea water temperature in September: | 82.9°F |
| Average sea water temperature in September: | 85.0°F |
| more information | |
14 days
forecast
forecast
| San Diego |
monthly
weather
weather
| San Diego |
Sea water temperature for the last 10 days:
| September 4 | 86.2°F | August 30 | 84.0°F |
| September 3 | 86.0°F | August 29 | 84.6°F |
| September 2 | 86.0°F | August 28 | 84.9°F |
| September 1 | 85.5°F | August 27 | 84.7°F |
| August 31 | 84.9°F | August 26 | 84.6°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 September, October and May.
Monthly Sea Temperatures in San Diego, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 84.8°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.0°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 84.4°F. The highest and lowest sea temperatures during the month were 85.3°F and 83.8°F.
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 85.4°F. The highest and lowest sea temperatures during the month were 86.9°F and 84.0°F.
current
weather
weather
| San Diego |
weather in
September
September
| San Diego |
Best time for vacation in San Diego
San Diego on a weather map
Places in Nicaragua:
Name
°F
24 Hours Forecast
San Diego
Local time: 14:12
September 04, friday
1500
97°F
W
15 mph
15 mph
1800
88°F
W
17 mph
17 mph
2100
84°F
W
14 mph
14 mph
September 05, saturday
0000
82°F
W
14 mph
14 mph
0300
81°F
W
14 mph
14 mph
0600
81°F
SW
12 mph
12 mph
0900
90°F
W
14 mph
14 mph
1200
95°F
W
11 mph
11 mph
