Current sea water temperature:
+84.2°F
| Minimum sea water temperature in May: | 87.3°F |
| Maximum sea water temperature in May: | 81.7°F |
| Average sea water temperature in May: | 84.7°F |
| more information | |
14 days
forecast
forecast
| San Diego |
monthly
weather
weather
| San Diego |
Sea water temperature for the last 10 days:
| May 21 | 84.2°F | May 16 | 86.2°F |
| May 20 | 85.1°F | May 15 | 85.8°F |
| May 19 | 85.8°F | May 14 | 85.5°F |
| May 18 | 85.5°F | May 13 | 85.1°F |
| May 17 | 85.8°F | May 12 | 85.8°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 85.6°F. The highest and lowest sea temperatures during the month were 86.9°F and 84.2°F.
current
weather
weather
| San Diego |
weather in
May
May
| 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: 05:16
May 21, thursday
0600
81°F
W
12 mph
12 mph
0900
90°F
W
13 mph
13 mph
1200
97°F
W
11 mph
11 mph
1500
95°F
W
11 mph
11 mph
1800
90°F
W
5 mph
5 mph
2100
84°F
W
9 mph
9 mph
May 22, friday
0000
82°F
W
11 mph
11 mph
0300
81°F
W
9 mph
9 mph
