Current sea water temperature:
+56.8°F
| Minimum sea water temperature in September: | 58.3°F |
| Maximum sea water temperature in September: | 51.4°F |
| Average sea water temperature in September: | 54.5°F |
| more information | |
14 days
forecast
forecast
| San Antonio |
monthly
weather
weather
| San Antonio |
Sea water temperature for the last 10 days:
| September 15 | 56.8°F | September 10 | 57.0°F |
| September 14 | 56.5°F | September 9 | 56.7°F |
| September 13 | 56.8°F | September 8 | 56.7°F |
| September 12 | 56.8°F | September 7 | 57.0°F |
| September 11 | 56.7°F | September 6 | 57.0°F |
Monthly sea water temperature, °F
When is the warmest sea in San Antonio?
Based on the data about daily sea water temperature for the last three years the warmest sea in San Antonio was noticed in February, January and March.
Monthly Sea Temperatures in San Antonio, °F
Sea water temperature in February, °F
Show year:
2026
2025
2024
The average sea water temperature in February of 2026 was 61.2°F. The highest and lowest sea temperatures during the month were 66.7°F and 57.7°F.
Sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 60.3°F. The highest and lowest sea temperatures during the month were 64.9°F and 54.0°F.
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 59.4°F. The highest and lowest sea temperatures during the month were 63.5°F and 54.3°F.
current
weather
weather
| San Antonio |
weather in
September
September
| San Antonio |
Best time for vacation in San Antonio
San Antonio on a weather map
Places in Chile:
Name
°F
24 Hours Forecast
San Antonio
Local time: 03:55
September 16, wednesday
0600
55°F
N
9 mph
9 mph
0900
55°F
N
9 mph
9 mph
1200
59°F
N
11 mph
11 mph
1500
59°F
N
15 mph
15 mph
1800
57°F
N
15 mph
15 mph
2100
57°F
N
14 mph
14 mph
September 17, thursday
0000
57°F
N
13 mph
13 mph
0300
57°F
N
9 mph
9 mph
