Measurements:
°C
°F
CURRENT WEATHER
19:02
San Antonio
58°F
N 11 mph
Feels like: 54°F
Precip: 10%
World Resorts Chile San Antonio Weather

14 Day Weather Forecast

09.28
mon
DAY
58°F
NE 12 mph
precip
26%
NIGHT
54°F
N 13 mph
precip
11%
09.29
tue
DAY
58°F
N 13 mph
precip
20%
NIGHT
54°F
N 11 mph
precip
21%
09.30
wed
DAY
58°F
N 14 mph
precip
15%
NIGHT
58°F
N 12 mph
precip
21%
10.01
thu
DAY
66°F
N 14 mph
precip
12%
NIGHT
58°F
N 9 mph
precip
27%
10.02
fri
DAY
60°F
NE 9 mph
precip
12%
NIGHT
54°F
N 12 mph
precip
27%
10.03
sat
DAY
56°F
N 16 mph
precip
5%
NIGHT
54°F
N 19 mph
precip
28%
10.04
sun
DAY
58°F
N 17 mph
precip
18%
NIGHT
56°F
N 11 mph
precip
28%
10.05
mon
DAY
60°F
N 14 mph
precip
18%
NIGHT
58°F
NE 3 mph
precip
25%
10.06
tue
DAY
60°F
NW 7 mph
precip
22%
NIGHT
56°F
N 9 mph
precip
25%
10.07
wed
DAY
60°F
NE 7 mph
precip
18%
NIGHT
58°F
SW 7 mph
precip
13%
10.08
thu
DAY
60°F
S 11 mph
precip
7%
NIGHT
56°F
SW 5 mph
precip
6%
10.09
fri
DAY
58°F
NE 9 mph
precip
16%
NIGHT
56°F
N 7 mph
precip
31%
10.10
sat
DAY
58°F
NE 11 mph
precip
24%
NIGHT
54°F
N 6 mph
precip
15%
10.11
sun
DAY
58°F
NE 9 mph
precip
20%
NIGHT
56°F
N 10 mph
precip
26%

San Antonio Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for San Antonio was 58.0°F. The maximum and minimum values were 56.4°F and 59.6°F respectively.

San Antonio on the Weather Map

Best Time to Visit San Antonio
The most sunny months:
January 29 days
March 28 days
December 28 days
The most warm months:
February 70.1 °F
January 69.1 °F
March 68.7 °F
Warmest sea temperature:
February 63.1 °F
January 61.9 °F
March 61.3 °F
The most cold months:
August 57.3 °F
July 57.3 °F
June 58.4 °F
The most rainy months:
June 3 days
July 2 days
August 1 day
The most windy months:
September 8 mph
October 8 mph
December 8 mph
more details
24 Hours Weather Forecast
San Antonio
Local time: 19:02
28 sep, monday
2100 54°F
N
12 mph
29 sep, tuesday
0000 54°F
N
13 mph
0300 52°F
N
12 mph
0600 52°F
N
13 mph
0900 54°F
N
12 mph
1200 58°F
N
13 mph
1500 56°F
NE
12 mph
1800 56°F
N
14 mph