Santiago in september: average Weather, Temperature and Climate
Weather in Santiago in september 2025
The weather in Santiago in the month of september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also by using 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
66% of time
20%
7%
6%
Weather at 12pm
63°F
Clear/Sunny
64% of time
23%
7%
6%
Weather at 6pm
49°F
Clear/Sunny
61% of time
22%
11%
5%
Weather at 3am
50°F
68%
19%
6%
5%
Evolution of daily average temperature and precipitation in Santiago in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Santiago in september.
The climate of Santiago in september is good
The climate in september in Santiago is dry ; it does not rain often (1.4in of precipitation over 2 days).
The climate is rather cool in that area september, but it is endurable by dressing warm. The thermometer averaged maximum of 65°F. On average, the recorded minimum temperature is 52°F. Thus, the mean temperature average on this month of september in Santiago is 59°F. These temperatures are far removed from those records observed in Santiago in september with a maximum record of 92°F in 2018 and a minimum record of 22°F in 2009. You can expect to have about 1 days with temperatures under 32°F, or 3% of the month.
On average, in Santiago, the days of september last 11:53. The sun rises at 07:42 and sets at 19:35.
With good weather conditions, september is advisable to go in Santiago.
Seasonal average climate and temperature of Santiago in september
Check below seasonal norms These datas are compiled from the weather statements earlier years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 59°F | ||||
| Highest temperature | 65°F | ||||
| Lowest temperature | 52°F | ||||
| Highest record temperature | 92°F (2018) | ||||
| Lowest record temperature | 22°F (2009) | ||||
| Number of days at +65°F | 15 day(s) (50%) | ||||
| Number of days at -32°F | 1 day(s) (3%) | ||||
| Wind | |||||
| Wind speed | 12km/h | ||||
| Wind temperature | 50°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.4in | ||||
| Number of days with rainfall | 2 day(s) (5%) | ||||
| Record daily rainfall | 3.2in (2009) | ||||
| Other climate data | |||||
| Humidity | 58% | ||||
| Visibility | 9.79km | ||||
| Cloud cover | 21% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:42 | ||||
| Time of sunset | 19:35 | ||||
| Length of day | 11:53 | ||||
| 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 Santiago in september 2024:
54°F to 76°F
50°F to 63°F
47°F to 65°F
45°F to 70°F
54°F to 72°F
50°F to 67°F
47°F to 67°F
50°F to 70°F
52°F to 72°F
50°F to 65°F
49°F to 68°F
50°F to 67°F
47°F to 68°F
50°F to 76°F
50°F to 76°F
56°F to 77°F
52°F to 72°F
58°F to 67°F
47°F to 67°F
50°F to 67°F
50°F to 70°F
50°F to 59°F
50°F to 61°F
49°F to 67°F
47°F to 65°F
49°F to 76°F
52°F to 72°F
56°F to 79°F
56°F to 74°F
54°F to 72°F
Map: other cities in Chile in september
Cities near Santiago:
| Puente Alto in september | good weather |
| Lampa in september | good weather |
| Melipilla in september | good weather |
| Los Andes in september | tolerable weather |
| Rancagua in september | tolerable weather |
| San Felipe in september | tolerable weather |
| Portillo in september | very bad weather |
| Quillota in september | good weather |
| Laguna del Inca in september | very bad weather |
| Quilpué in september | good weather |
| San Antonio in september | good weather |
| Hacienda La Calera in september | good weather |
Click over cities on the map for information about the weather in september.
Santiago
perfect weather
good
tolerable
bad
very bad
Weather data for Santiago in september:
Weather data for Santiago for september are derived from an average of the weather forecast since 2009 in Santiago. There is a margin of error and these forecasts are to be considered as general information only. The weather in Santiago 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 Santiago.