San Antonio in september: average Weather, Temperature and Climate
Weather in San Antonio in september 2025
The weather in San Antonio in september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
54°F
Clear/Sunny
58% of time
23%
10%
6%
Weather at 12pm
63°F
Clear/Sunny
67% of time
20%
9%
5%
Weather at 6pm
54°F
Clear/Sunny
59% of time
24%
10%
6%
Weather at 3am
50°F
57%
21%
11%
7%
Evolution of daily average temperature and precipitation in San Antonio in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in San Antonio in september.
The climate of San Antonio in september is good
the weather in San Antonio in september is dry ; it hardly ever rains (1.1in of precipitation over 1 days).
The climate is fairly cold there the month of september, but it is endurable by dressing cosy. The thermometer averaged maximum of 63°F. The minimum is 54°F. Thus, the mean temperature average on this month of september in San Antonio is 58°F. Note that seasonal normals in contrast with those observed in San Antonio in the month of september with a maximum record of 76°F in 2015 and a minimum record of 45°F in 2009. You can expect to have about 8 days with temperatures above 65°F, or 27% of the month.
On this month of september, day length in San Antonio is generally 11:54. Sunrise is at 07:45 and sets at 19:39.
With good weather conditions, the month of september is advisable to go in this locality.
Seasonal average climate and temperature of San Antonio in september
Check below seasonal norms These datas are set from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 58°F | ||||
| Highest temperature | 63°F | ||||
| Lowest temperature | 54°F | ||||
| Highest record temperature | 76°F (2015) | ||||
| Lowest record temperature | 45°F (2009) | ||||
| Number of days at +65°F | 8 day(s) (27%) | ||||
| Sea temperature | |||||
| Average sea temperature | 56°F | ||||
| Lowest sea temperature | 54°F | ||||
| Highest sea temperature | 58°F | ||||
| Wind | |||||
| Wind speed | 21km/h | ||||
| Wind temperature | 50°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.1in | ||||
| Number of days with rainfall | 1 day(s) (4%) | ||||
| Record daily rainfall | 2.8in (2015) | ||||
| Other climate data | |||||
| Humidity | 79% | ||||
| Visibility | 9.57km | ||||
| Cloud cover | 24% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:45 | ||||
| Time of sunset | 19:39 | ||||
| Length of day | 11:54 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in San Antonio in september 2024:
52°F to 61°F
50°F to 54°F
49°F to 56°F
45°F to 58°F
49°F to 58°F
49°F to 56°F
45°F to 54°F
49°F to 56°F
50°F to 59°F
50°F to 56°F
49°F to 56°F
49°F to 54°F
47°F to 56°F
50°F to 59°F
49°F to 59°F
54°F to 61°F
49°F to 58°F
50°F to 56°F
50°F to 58°F
49°F to 58°F
49°F to 58°F
52°F to 58°F
50°F to 56°F
49°F to 56°F
45°F to 54°F
49°F to 61°F
49°F to 59°F
52°F to 61°F
52°F to 59°F
52°F to 58°F
Map: other cities in Chile in september
Cities near San Antonio:
| Melipilla in september | good weather |
| Quintay in september | good weather |
| Valparaiso in september | good weather |
| Quilpué in september | good weather |
| Viña del Mar in september | good weather |
| Lampa in september | good weather |
| Quillota in september | good weather |
| Santiago in september | good weather |
| Pichilemu in september | good weather |
| Puente Alto in september | good weather |
| Hacienda La Calera in september | good weather |
| Rancagua in september | tolerable weather |
Click over cities on the map for information about the weather in september.
San Antonio
perfect weather
good
tolerable
bad
very bad
Weather data for San Antonio in september:
Weather data for San Antonio for september are derived from an average of the weather forecast since 2009 in San Antonio. There is a margin of error and these forecasts are to be considered as general information only. The weather in San Antonio can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to San Antonio.