Current Sea Water Temperature:
+56.6°F
| Maximum Sea Water Temperature in August: | 58.2°F |
| Minimum Sea Water Temperature in August: | 52.6°F |
| Average water temperature in August: | 54.9°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| August 19 | 56.6°F | August 14 | 55.6°F |
| August 18 | 57.2°F | August 13 | 55.6°F |
| August 17 | 57.4°F | August 12 | 56.6°F |
| August 16 | 57.8°F | August 11 | 57.4°F |
| August 15 | 55.6°F | August 10 | 57.4°F |
When is the Warmest Sea for San Antonio?
According to our data for the last three years for San Antonio the highest average sea water temperature was in February, January and March.
Average Water Temperature by Month, °F
Sea Water Temperature in February
The average sea surface temperature in February 2026 for San Antonio was 62.5°F. The maximum and minimum values were 58.6°F and 68.6°F respectively.
Sea Water Temperature in January
The average sea surface temperature in January 2026 for San Antonio was 61.5°F. The maximum and minimum values were 54.4°F and 66.6°F respectively.
Sea Water Temperature in March
The average sea surface temperature in March 2026 for San Antonio was 60.4°F. The maximum and minimum values were 54.8°F and 65.0°F respectively.
Chile Resorts:
NAME
F°
| Algarrobo |  |
+56 |
| Antofagasta | |
+60 |
| Arica | |
+62 |
| Chiloe |  |
+46 |
| Concon |  |
+52 |
| Easter Island | |
+66 |
| Iquique | |
+64 |
| La Serena | |
+54 |
| Las Cruces | |
+56 |
| Puerto Montt | |
+42 |
| Puerto Natales |  |
+34 |
| Punta Arenas | |
+34 |
| Torres del Paine | |
+26 |
| Valparaiso | |
+54 |
| Vina del Mar | |
+52 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
San Antonio
Local time: 10:14
19 aug, wednesday
| 1200 |  |
58°F | SE 7 mph |
| 1500 | |
56°F | E 5 mph |
| 1800 | |
56°F | E 2 mph |
| 2100 |  |
54°F | N 6 mph |
20 aug, thursday
| 0000 | |
54°F | NW 6 mph |
| 0300 |  |
54°F | N 9 mph |
| 0600 | |
54°F | N 9 mph |
| 0900 | |
56°F | N 11 mph |