Vilcún weather in September

In September, Vilcún sees average daytime highs of 14°C and overnight lows near 4°C, with 153 mm of precipitation across 13.4 wet days and about 11.7 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 15°C by the end. The sky is clear or mostly clear about 21% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of September to 12 h 24 min by month's end. Set against the rest of the year, September is Vilcún's 8th-clearest and 5th-windiest month. For the whole year in context, see Vilcún's year-round climate.

Daytime high: 14°; 8th warmest
Overnight low: 4°; 4th coldest
Precipitation: 153 mm; 13.4 wet days
Daylight: 11 h 48 min; 7:51 AM – 7:36 PM
Cloud cover: 66%; 8th clearest
Wind: 10 km/h; 5th windiest
Solar energy: 3.82 kWh/m²
Travel score: 3.5; out of 10

Vilcún is settlement in Chile.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← August Vilcún year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 13°C in the first days to 15°C by the end.

A typical September day in Vilcún reaches about 14°C in the afternoon and slips back to 4°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 18°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	13	13	13	13	13	13	13	13	13	13	13	13	13	13	14	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15
Avg low (°C)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5

	Avg high (°C)	Avg low (°C)
1	13	4
2	13	4
3	13	4
4	13	4
5	13	4
6	13	4
7	13	4
8	13	4
9	13	4
10	13	4
11	13	4
12	13	4
13	13	4
14	13	4
15	14	4
16	14	4
17	14	4
18	14	4
19	14	4
20	14	5
21	14	5
22	14	5
23	14	5
24	14	5
25	14	5
26	14	5
27	15	5
28	15	5
29	15	5
30	15	5

How September really feels in Vilcún

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Vilcún weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	22° / 10°	49	5.7	0	14.4	7.8
Feb	23° / 10°	51	5.1	0	13.5	8.0
Mar	20° / 9°	76	7.3	0	12.3	7.0
Apr	16° / 7°	140	10.7	0	11	5.1
May	13° / 6°	238	14.6	0.2	9.9	3.3
Jun	11° / 4°	342	18.7	0.6	9.4	2.0
Jul	10° / 3°	280	17.7	1.4	9.6	1.9
Aug	12° / 3°	249	16.6	0.6	10.5	2.5
Sep	14° / 4°	153	13.4	0.4	11.7	3.5
Oct	15° / 6°	143	12.7	0	13	4.5
Nov	18° / 7°	102	10.3	0	14.1	5.6
Dec	20° / 9°	89	8.7	0	14.7	6.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 66%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	29	30	30	30	32	32	33	33	34	34	34	35	35	35	35	35	35	35	35	35	35	35	34	34	33	34	33	34	35	35
Cloudier (%)	71	70	70	70	68	68	67	67	66	66	66	65	65	65	65	65	65	65	65	65	65	65	66	66	67	66	67	66	65	65

	Clearer (%)	Cloudier (%)
1	29	71
2	30	70
3	30	70
4	30	70
5	32	68
6	32	68
7	33	67
8	33	67
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	35	65
20	35	65
21	35	65
22	35	65
23	34	66
24	34	66
25	33	67
26	34	66
27	33	67
28	34	66
29	35	65
30	35	65

Chance of precipitation in September

Any precipitationSnow

Vilcún gets around 153 mm of rain and snow over 13.4 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 46% and peaks near 52% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	52	52	51	50	50	49	48	48	48	48	47	47	47	46	46	45	45	44	44	43	43	43	43	43	42	42	42	42	42	42
Snow chance (%)	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1

	Rain chance (%)	Snow chance (%)
1	52	2
2	52	2
3	51	2
4	50	2
5	50	2
6	49	2
7	48	2
8	48	2
9	48	2
10	48	2
11	47	2
12	47	2
13	47	2
14	46	2
15	46	2
16	45	1
17	45	1
18	44	1
19	44	1
20	43	1
21	43	1
22	43	1
23	43	1
24	43	1
25	42	1
26	42	1
27	42	1
28	42	1
29	42	1
30	42	1

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	9
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	11	calm
2	11	calm
3	11	calm
4	11	calm
5	11	calm
6	11	calm
7	10	calm
8	10	calm
9	10	calm
10	10	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	9	calm
23	9	calm
24	9	calm
25	9	calm
26	9	calm
27	9	calm
28	9	calm
29	9	calm
30	9	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 06 min at the start of September to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over September. Sunrise moves from 8:15 AM to 7:28 AM, and sunset from 7:22 PM to 7:49 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.1	11.2	11.2	11.2	11.3	11.3	11.4	11.4	11.5	11.5	11.5	11.6	11.6	11.7	11.7	11.8	11.8	11.8	11.9	11.9	12.0	12.0	12.1	12.1	12.1	12.2	12.2	12.3	12.3	12.4
Sunrise (AM)	8:15	8:14	8:12	8:10	8:09	8:07	8:05	8:04	8:02	8:01	7:59	7:57	7:56	7:54	7:52	7:51	7:49	7:47	7:46	7:44	7:42	7:41	7:39	7:37	7:36	7:34	7:32	7:31	7:29	7:28
Sunset (PM)	7:22	7:23	7:24	7:25	7:26	7:27	7:28	7:29	7:29	7:30	7:31	7:32	7:33	7:34	7:35	7:36	7:37	7:38	7:39	7:39	7:40	7:41	7:42	7:43	7:44	7:45	7:46	7:47	7:48	7:49

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.1	8:15	7:22
2	11.2	8:14	7:23
3	11.2	8:12	7:24
4	11.2	8:10	7:25
5	11.3	8:09	7:26
6	11.3	8:07	7:27
7	11.4	8:05	7:28
8	11.4	8:04	7:29
9	11.5	8:02	7:29
10	11.5	8:01	7:30
11	11.5	7:59	7:31
12	11.6	7:57	7:32
13	11.6	7:56	7:33
14	11.7	7:54	7:34
15	11.7	7:52	7:35
16	11.8	7:51	7:36
17	11.8	7:49	7:37
18	11.8	7:47	7:38
19	11.9	7:46	7:39
20	11.9	7:44	7:39
21	12.0	7:42	7:40
22	12.0	7:41	7:41
23	12.1	7:39	7:42
24	12.1	7:37	7:43
25	12.1	7:36	7:44
26	12.2	7:34	7:45
27	12.2	7:32	7:46
28	12.3	7:31	7:47
29	12.3	7:29	7:48
30	12.4	7:28	7:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.82 kWh/m².

For context, solar energy here swings from a low near 1.41 kWh/m² to a high of 7.72 kWh/m² in January across the year — September's 3.82 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	3.0	3.1	3.2	3.2	3.3	3.3	3.4	3.4	3.5	3.5	3.6	3.6	3.7	3.7	3.8	3.8	3.9	3.9	4.0	4.0	4.1	4.1	4.2	4.2	4.3	4.3	4.4	4.4	4.4	4.5
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.0	Moderate
2	3.1	Moderate
3	3.2	Moderate
4	3.2	Moderate
5	3.3	Moderate
6	3.3	Moderate
7	3.4	Moderate
8	3.4	Moderate
9	3.5	Moderate
10	3.5	Moderate
11	3.6	Moderate
12	3.6	Moderate
13	3.7	Moderate
14	3.7	Moderate
15	3.8	Moderate
16	3.8	Moderate
17	3.9	Moderate
18	3.9	Moderate
19	4.0	Moderate
20	4.0	Bright
21	4.1	Bright
22	4.1	Bright
23	4.2	Bright
24	4.2	Bright
25	4.3	Bright
26	4.3	Bright
27	4.4	Bright
28	4.4	Bright
29	4.4	Bright
30	4.5	Bright

Planning a trip in September

Hazard calendar for Vilcún

In seasonPeak

None of Vilcún's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Vilcún's rainy season runs May–August, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Vilcún?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.5

Sightseeing

8th-best month of the year

0.0

Beach & pool

9th-best month of the year

September is a weaker month for outdoor sightseeing in Vilcún.

What to pack for Vilcún in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Vilcún sees daytime highs around 14°C and nights near 4°C. Pack rain gear. Worth having: a warm layer. About 13 days see rain.

rain geara warm layer

UV index in Vilcún in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vilcún peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	11	11	8	4	2	2	2	3	5	8	10	12
Level	Extreme	Extreme	Very high	Moderate	Moderate	Low	Moderate	Moderate	Moderate	Very high	Very high	Extreme

	UV index (midday)	Level
Jan	11	Extreme
Feb	11	Extreme
Mar	8	Very high
Apr	4	Moderate
May	2	Moderate
Jun	2	Low
Jul	2	Moderate
Aug	3	Moderate
Sep	5	Moderate
Oct	8	Very high
Nov	10	Very high
Dec	12	Extreme

Air quality in Vilcún in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Vilcún is worst in March — around 28 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (January, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	8	9	28	19	11	8	9	10	11	10	9	8
Level	Good	Good	Moderate	Moderate	Good	Good	Good	Good	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	8	Good
Feb	9	Good
Mar	28	Moderate
Apr	19	Moderate
May	11	Good
Jun	8	Good
Jul	9	Good
Aug	10	Good
Sep	11	Good
Oct	10	Good
Nov	9	Good
Dec	8	Good

Location & terrain

Where is Vilcún?

Vilcún sits at 38.7°S, 72.2°W, 295 m above sea level, in Chile. The nearest listed city is Lautaro, 24 km away.

Topography around Vilcún

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Vilcún.

Within 3 km, the terrain around Vilcún has only modest variations in elevation — a maximum elevation change of 106 m around an average of 305 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 525 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,090 m.

The land around Vilcún is covered by cropland (40%), grassland (32%) and trees (24%) within 3 km, trees (37%), cropland (36%) and grassland (26%) within 16 km, and trees (59%) within 80 km.

3 km

106 m

cropland 40%

16 km

525 m

trees 37%

80 km

3,090 m

trees 59%

treesgrasslandcroplandartificial surfacesbare terrainwater

← August Vilcún year-round climate October →Best places to visit in September

September weather nearby: Lautaro 24 km · Temuco 33 km · Cunco 34 km · Padre Las Casas 34 km · Freire 47 km · Labranza 47 km · Victoria 49 km · Pitrufquén 50 km

Chile travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F / L; 220 V · 50 Hz
Prices: ≈ 48% of US; price level, 2025
GDP per capita: $17,995; 2025
Happiness: 6.3 / 10; World Happiness, 2025
Safe drinking water: 98%; of population, 2024
Homicide rate: 6.3; per 100k, 2023
Road deaths: 14.9; per 100k/yr, 2019
Income group: High; World Bank
English: Moderate; EF EPI 517
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Vilcún (-38.6688°, -72.2257°, elevation 295 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	13	4
2	13	4
3	13	4
4	13	4
5	13	4
6	13	4
7	13	4
8	13	4
9	13	4
10	13	4
11	13	4
12	13	4
13	13	4
14	13	4
15	14	4
16	14	4
17	14	4
18	14	4
19	14	4
20	14	5
21	14	5
22	14	5
23	14	5
24	14	5
25	14	5
26	14	5
27	15	5
28	15	5
29	15	5
30	15	5

	Clearer (%)	Cloudier (%)
1	29	71
2	30	70
3	30	70
4	30	70
5	32	68
6	32	68
7	33	67
8	33	67
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	35	65
20	35	65
21	35	65
22	35	65
23	34	66
24	34	66
25	33	67
26	34	66
27	33	67
28	34	66
29	35	65
30	35	65

	Rain chance (%)	Snow chance (%)
1	52	2
2	52	2
3	51	2
4	50	2
5	50	2
6	49	2
7	48	2
8	48	2
9	48	2
10	48	2
11	47	2
12	47	2
13	47	2
14	46	2
15	46	2
16	45	1
17	45	1
18	44	1
19	44	1
20	43	1
21	43	1
22	43	1
23	43	1
24	43	1
25	42	1
26	42	1
27	42	1
28	42	1
29	42	1
30	42	1

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°C)	Avg low (°C)
1	13	4
2	13	4
3	13	4
4	13	4
5	13	4
6	13	4
7	13	4
8	13	4
9	13	4
10	13	4
11	13	4
12	13	4
13	13	4
14	13	4
15	14	4
16	14	4
17	14	4
18	14	4
19	14	4
20	14	5
21	14	5
22	14	5
23	14	5
24	14	5
25	14	5
26	14	5
27	15	5
28	15	5
29	15	5
30	15	5

	Clearer (%)	Cloudier (%)
1	29	71
2	30	70
3	30	70
4	30	70
5	32	68
6	32	68
7	33	67
8	33	67
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	35	65
20	35	65
21	35	65
22	35	65
23	34	66
24	34	66
25	33	67
26	34	66
27	33	67
28	34	66
29	35	65
30	35	65

	Rain chance (%)	Snow chance (%)
1	52	2
2	52	2
3	51	2
4	50	2
5	50	2
6	49	2
7	48	2
8	48	2
9	48	2
10	48	2
11	47	2
12	47	2
13	47	2
14	46	2
15	46	2
16	45	1
17	45	1
18	44	1
19	44	1
20	43	1
21	43	1
22	43	1
23	43	1
24	43	1
25	42	1
26	42	1
27	42	1
28	42	1
29	42	1
30	42	1

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°C)	Avg low (°C)
1	13	4
2	13	4
3	13	4
4	13	4
5	13	4
6	13	4
7	13	4
8	13	4
9	13	4
10	13	4
11	13	4
12	13	4
13	13	4
14	13	4
15	14	4
16	14	4
17	14	4
18	14	4
19	14	4
20	14	5
21	14	5
22	14	5
23	14	5
24	14	5
25	14	5
26	14	5
27	15	5
28	15	5
29	15	5
30	15	5

	Clearer (%)	Cloudier (%)
1	29	71
2	30	70
3	30	70
4	30	70
5	32	68
6	32	68
7	33	67
8	33	67
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	35	65
20	35	65
21	35	65
22	35	65
23	34	66
24	34	66
25	33	67
26	34	66
27	33	67
28	34	66
29	35	65
30	35	65

	Rain chance (%)	Snow chance (%)
1	52	2
2	52	2
3	51	2
4	50	2
5	50	2
6	49	2
7	48	2
8	48	2
9	48	2
10	48	2
11	47	2
12	47	2
13	47	2
14	46	2
15	46	2
16	45	1
17	45	1
18	44	1
19	44	1
20	43	1
21	43	1
22	43	1
23	43	1
24	43	1
25	42	1
26	42	1
27	42	1
28	42	1
29	42	1
30	42	1

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100