Current Sea Water Temperature:
+88.8°F
| Maximum Sea Water Temperature in July: | 90.2°F |
| Minimum Sea Water Temperature in July: | 86.0°F |
| Average water temperature in July: | 88.1°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| July 30 | 88.8°F | July 25 | 89.0°F |
| July 29 | 89.2°F | July 24 | 88.2°F |
| July 28 | 88.2°F | July 23 | 88.2°F |
| July 27 | 88.4°F | July 22 | 88.4°F |
| July 26 | 89.4°F | July 21 | 88.4°F |
When is the Warmest Sea for San Diego?
According to our data for the last three years for San Diego the highest average sea water temperature was in September, October and May.
Average Water Temperature by Month, °F
Sea Water Temperature in September
The average sea surface temperature in September 2025 for San Diego was 88.7°F. The maximum and minimum values were 87.8°F and 89.8°F respectively.
Sea Water Temperature in October
The average sea surface temperature in October 2025 for San Diego was 88.2°F. The maximum and minimum values were 87.6°F and 89.2°F respectively.
Sea Water Temperature in May
The average sea surface temperature in May 2026 for San Diego was 89.3°F. The maximum and minimum values were 87.8°F and 91.0°F respectively.
Nicaragua Resorts:
NAME
F°
| Apoyo Lake |  |
+84 |
| Ciudad Sandino | |
+82 |
| Corn Islands |  |
+86 |
| El Transito |  |
+84 |
| Granada | |
+84 |
| Isla de Ometepe | |
+84 |
| Las Salinas | |
+86 |
| Leon | |
+80 |
| Managua | |
+82 |
| Masachapa | |
+84 |
| Masaya | |
+80 |
| Pochomil | |
+84 |
| San Diego | |
+84 |
| San Juan del Sur | |
+84 |
| Somoto |  |
+66 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
San Diego
Local time: 02:11
30 jul, thursday
| 0300 |  |
84°F | SW 14 mph |
| 0600 |  |
84°F | SW 14 mph |
| 0900 | |
94°F | SW 17 mph |
| 1200 | |
100°F | W 18 mph |
| 1500 | |
100°F | W 19 mph |
| 1800 |  |
94°F | W 16 mph |
| 2100 |  |
88°F | W 13 mph |
31 jul, friday
| 0000 | |
86°F | W 14 mph |