La Union in september: average Weather, Temperature and Climate
Weather in La Union in september 2025
The weather in La Union in september comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather
Weather at 6am
45°F
Fog
25% of time
23%
20%
12%
Weather at 12pm
54°F
Moderate rain at times
33% of time
28%
17%
12%
Weather at 6pm
45°F
Moderate rain at times
34% of time
22%
15%
14%
Weather at 3am
41°F
47%
26%
10%
8%
Evolution of daily average temperature and precipitation in La Union in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in La Union in september.
The climate of La Union in september is tolerable
the weather in La Union in september is wet (with 8.1in of rainfall over 10 days). It should be noted an improvement from the previous month since in august it receives an average of 17in of rainfall over 16 days.
The climate is fairly fresh there this month, but it is endurable when dressing cosy. The high seasonal norm is 56°F. On average, the recorded minimum temperature is 45°F. Thus, the mean temperature average in september in La Union is 50°F. Note that these seasonal averages are in contrast with those observed in La Union in the month of september with a maximum record of 72°F in 2021 and a minimum record of 31°F in 2010. You can plan to have about 2 days with temperatures up to 65°F, or 7% of the month.
On average, in La Union, the days of september last 11:50. The sun rises at 07:53 and sets at 19:43.
With a correct climate, this month is okay (but not the best) to go in this locality in Chile.
September: another location in Chile?
If you want to go to Chile in september, there are destinations with better weather than La Union:
In september, Iquique, Chañaral, Huasco, Copiapó, Taltal and Tocopilla have perfect weather.
Furthermore, Santiago, Caldera, Easter island, San Pedro de Atacama (Atacama Desert), Valparaiso and Constitucion have good weather.
Seasonal average climate and temperature of La Union 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 | 50°F | ||||
| Highest temperature | 56°F | ||||
| Lowest temperature | 45°F | ||||
| Highest record temperature | 72°F (2021) | ||||
| Lowest record temperature | 31°F (2010) | ||||
| Number of days at +65°F | 2 day(s) (7%) | ||||
| Number of days at -32°F | 0 day(s) (0%) | ||||
| Wind | |||||
| Wind speed | 13km/h | ||||
| Wind temperature | 41°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 8.1in | ||||
| Number of days with rainfall | 10 day(s) (32%) | ||||
| Record daily rainfall | 3.6in (2013) | ||||
| Other climate data | |||||
| Humidity | 93% | ||||
| Visibility | 7.09km | ||||
| Cloud cover | 58% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:53 | ||||
| Time of sunset | 19:43 | ||||
| Length of day | 11:50 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in La Union in september 2024:
45°F to 52°F
41°F to 47°F
36°F to 43°F
40°F to 54°F
40°F to 45°F
45°F to 52°F
43°F to 52°F
36°F to 56°F
40°F to 47°F
41°F to 50°F
31°F to 50°F
32°F to 52°F
38°F to 56°F
34°F to 58°F
36°F to 59°F
32°F to 59°F
36°F to 61°F
43°F to 59°F
47°F to 52°F
43°F to 47°F
45°F to 52°F
40°F to 45°F
40°F to 54°F
31°F to 52°F
32°F to 54°F
32°F to 58°F
41°F to 47°F
49°F to 56°F
49°F to 54°F
49°F to 52°F
Map: other cities in Chile in september
Cities near La Union:
| Osorno in september | tolerable weather |
| Valdivia in september | tolerable weather |
| Bahía Mansa in september | tolerable weather |
| Loncoche in september | tolerable weather |
| Parque Nacional Vicente Perez Rosales in september | very bad weather |
| Puerto Varas in september | bad weather |
| Puerto Montt in september | tolerable weather |
| Villarrica in september | very bad weather |
| Volcán Villarrica in september | very bad weather |
| Pucón in september | very bad weather |
| Calbuco in september | tolerable weather |
| Carahue in september | tolerable weather |
Click over cities on the map for information about the weather in september.
La Union
perfect weather
good
tolerable
bad
very bad
Weather data for La Union in september:
Weather data for La Union for september are derived from an average of the weather forecast since 2009 in La Union. There is a margin of error and these forecasts are to be considered as general information only. The weather in La Union 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 La Union.