La Unión weather in October

In October, La Unión sees average daytime highs of 15°C and overnight lows near 6°C, with 110 mm of rain across 13.4 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 16°C by the end. The sky is clear or mostly clear about 16% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of October to 13 h 42 min by month's end. Set against the rest of the year, October is La Unión's 7th-clearest and 8th-windiest month. For the whole year in context, see La Unión's year-round climate.

Daytime high: 15°; 7th warmest
Overnight low: 6°; 6th coldest
Rainfall: 110 mm; 13.4 wet days
Daylight: 13 h 06 min; 7:05 AM – 8:10 PM
Cloud cover: 68%; 7th clearest
Wind: 10 km/h; 8th windiest
Solar energy: 4.82 kWh/m²
Travel score: 4.3; out of 10

La Unión is city in Chile.

Air quality: High; PM2.5 29.9 µg/m³ · 2019
Density: 12/km²; people per km²
Founded: 1821

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

← September La Unión year-round climate November →Best places to visit in October

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 16°C by the end.

A typical October day in La Unión reaches about 15°C in the afternoon and slips back to 6°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 19°C. Set against its neighbours, October runs about 2°C warmer than September and about 2°C cooler than November.

	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	31
Avg high (°C)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	16	16	16	16	16	16	16	16	16	16	16	16
Avg low (°C)	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	7	7	7	7

	Avg high (°C)	Avg low (°C)
1	15	5
2	15	5
3	15	5
4	15	6
5	15	6
6	15	6
7	15	6
8	15	6
9	15	6
10	15	6
11	15	6
12	15	6
13	15	6
14	15	6
15	15	6
16	15	6
17	15	6
18	15	6
19	15	6
20	16	6
21	16	6
22	16	6
23	16	6
24	16	6
25	16	6
26	16	6
27	16	6
28	16	7
29	16	7
30	16	7
31	16	7

La Unión weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	22° / 10°	36	6	14.5	7.5
Feb	22° / 10°	41	5.1	13.6	7.6
Mar	20° / 9°	63	7.6	12.3	6.7
Apr	16° / 7°	109	10.6	11	4.9
May	13° / 6°	189	15.4	9.8	3.1
Jun	11° / 4°	254	18.3	9.2	2.0
Jul	10° / 4°	229	17.8	9.4	1.9
Aug	11° / 4°	210	17.8	10.4	2.3
Sep	13° / 5°	125	13.5	11.7	3.4
Oct	15° / 6°	110	13.4	13.1	4.3
Nov	17° / 8°	74	9.9	14.2	5.5
Dec	20° / 9°	64	8	14.8	6.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 68%.

	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	31
Clearer (%)	31	29	29	30	30	29	29	29	30	30	30	30	30	30	31	31	32	33	33	33	33	34	36	36	36	36	36	36	35	35	35
Cloudier (%)	69	71	71	70	70	71	71	71	70	70	70	70	70	70	69	69	68	67	67	67	67	66	64	64	64	64	64	64	65	65	65

	Clearer (%)	Cloudier (%)
1	31	69
2	29	71
3	29	71
4	30	70
5	30	70
6	29	71
7	29	71
8	29	71
9	30	70
10	30	70
11	30	70
12	30	70
13	30	70
14	30	70
15	31	69
16	31	69
17	32	68
18	33	67
19	33	67
20	33	67
21	33	67
22	34	66
23	36	64
24	36	64
25	36	64
26	36	64
27	36	64
28	36	64
29	35	65
30	35	65
31	35	65

Chance of precipitation in October

Any precipitation

La Unión gets around 110 mm of rain over 13.4 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 42% and peaks near 43% on the wettest days.

	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	31
Rain chance (%)	42	42	43	43	43	43	43	43	43	42	42	42	41	41	41	41	41	41	41	42	42	42	42	42	42	42	42	42	42	42	41

	Rain chance (%)
1	42
2	42
3	43
4	43
5	43
6	43
7	43
8	43
9	43
10	42
11	42
12	42
13	41
14	41
15	41
16	41
17	41
18	41
19	41
20	42
21	42
22	42
23	42
24	42
25	42
26	42
27	42
28	42
29	42
30	42
31	41

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October 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	31
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	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
31	100

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 10 km/h on the calmest days to 10 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	31
Wind speed (km/h)	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
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	calm

	Wind speed (km/h)	Feels
1	10	calm
2	10	calm
3	10	calm
4	10	calm
5	10	calm
6	10	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	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm
31	10	calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 24 min at the start of October to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over October. Sunrise moves from 7:29 AM to 6:45 AM, and sunset from 7:54 PM to 8:27 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	31
Daylight (h)	12.4	12.5	12.5	12.6	12.6	12.6	12.7	12.7	12.8	12.8	12.9	12.9	13.0	13.0	13.0	13.1	13.1	13.2	13.2	13.3	13.3	13.3	13.4	13.4	13.5	13.5	13.5	13.6	13.6	13.7	13.7
Sunrise (AM)	7:29	7:27	7:25	7:24	7:22	7:20	7:19	7:17	7:16	7:14	7:12	7:11	7:09	7:08	7:06	7:05	7:03	7:02	7:00	6:59	6:57	6:56	6:55	6:53	6:52	6:51	6:49	6:48	6:47	6:46	6:45
Sunset (PM)	7:54	7:55	7:56	7:57	7:58	7:59	8:00	8:01	8:02	8:03	8:05	8:06	8:07	8:08	8:09	8:10	8:11	8:12	8:13	8:14	8:16	8:17	8:18	8:19	8:20	8:21	8:22	8:24	8:25	8:26	8:27

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.4	7:29	7:54
2	12.5	7:27	7:55
3	12.5	7:25	7:56
4	12.6	7:24	7:57
5	12.6	7:22	7:58
6	12.6	7:20	7:59
7	12.7	7:19	8:00
8	12.7	7:17	8:01
9	12.8	7:16	8:02
10	12.8	7:14	8:03
11	12.9	7:12	8:05
12	12.9	7:11	8:06
13	13.0	7:09	8:07
14	13.0	7:08	8:08
15	13.0	7:06	8:09
16	13.1	7:05	8:10
17	13.1	7:03	8:11
18	13.2	7:02	8:12
19	13.2	7:00	8:13
20	13.3	6:59	8:14
21	13.3	6:57	8:16
22	13.3	6:56	8:17
23	13.4	6:55	8:18
24	13.4	6:53	8:19
25	13.5	6:52	8:20
26	13.5	6:51	8:21
27	13.5	6:49	8:22
28	13.6	6:48	8:24
29	13.6	6:47	8:25
30	13.7	6:46	8:26
31	13.7	6:45	8:27

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.82 kWh/m².

For context, solar energy here swings from a low near 1.28 kWh/m² to a high of 7.12 kWh/m² in January across the year — October's 4.82 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	31
Solar energy (kWh/m²)	4.2	4.2	4.3	4.3	4.3	4.4	4.4	4.5	4.5	4.5	4.6	4.6	4.7	4.7	4.8	4.8	4.8	4.9	4.9	5.0	5.0	5.1	5.1	5.1	5.2	5.2	5.3	5.3	5.3	5.3	5.4
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.2	Bright
2	4.2	Bright
3	4.3	Bright
4	4.3	Bright
5	4.3	Bright
6	4.4	Bright
7	4.4	Bright
8	4.5	Bright
9	4.5	Bright
10	4.5	Bright
11	4.6	Bright
12	4.6	Bright
13	4.7	Bright
14	4.7	Bright
15	4.8	Bright
16	4.8	Bright
17	4.8	Bright
18	4.9	Bright
19	4.9	Bright
20	5.0	Bright
21	5.0	Bright
22	5.1	Bright
23	5.1	Bright
24	5.1	Bright
25	5.2	Bright
26	5.2	Bright
27	5.3	Bright
28	5.3	Bright
29	5.3	Bright
30	5.3	Bright
31	5.4	Bright

Planning a trip in October

Hazard calendar for La Unión

In seasonPeak

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

La Unión's rainy season runs May–September, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is October a good time to visit La Unión?

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

4.3

Sightseeing

7th-best month of the year

0.3

Beach & pool

7th-best month of the year

October is a reasonable time to visit La Unión for sightseeing.

What to pack for La Unión in October

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

In October, La Unión sees daytime highs around 15°C and nights near 6°C. Worth packing: a warm layer, rain gear and sun protection. About 13 days see rain.

a warm layerrain gearsun protection

Sea temperature near La Unión in October

The nearest coast averages about 12°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 66 km away) is warmest in January at about 14°C and coldest in August near 11°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	14	14	14	13	13	12	11	11	11	12	13	14
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	14	Bracing
Feb	14	Bracing
Mar	14	Bracing
Apr	13	Bracing
May	13	Bracing
Jun	12	Bracing
Jul	11	Bracing
Aug	11	Bracing
Sep	11	Bracing
Oct	12	Bracing
Nov	13	Bracing
Dec	14	Bracing

UV index in La Unión in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in La Unión peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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	7	5	2	2	2	3	4	7	9	12
Level	Extreme	Extreme	Very high	Moderate	Moderate	Low	Low	Moderate	Moderate	High	Very high	Extreme

	UV index (midday)	Level
Jan	11	Extreme
Feb	11	Extreme
Mar	7	Very high
Apr	5	Moderate
May	2	Moderate
Jun	2	Low
Jul	2	Low
Aug	3	Moderate
Sep	4	Moderate
Oct	7	High
Nov	9	Very high
Dec	12	Extreme

Air quality in La Unión in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in La Unión is worst in March — around 36 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (February, 22 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to La Unión's WHO annual average of 29.9 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	24	22	36	36	28	26	27	33	36	33	31	27
Level	Moderate	Moderate	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Poor	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	24	Moderate
Feb	22	Moderate
Mar	36	Poor
Apr	36	Poor
May	28	Moderate
Jun	26	Moderate
Jul	27	Moderate
Aug	33	Moderate
Sep	36	Poor
Oct	33	Moderate
Nov	31	Moderate
Dec	27	Moderate

Location & terrain

Where is La Unión?

La Unión sits at 40.3°S, 73.1°W, 32 m above sea level, in Chile. The nearest listed city is Río Bueno, 12 km away.

Topography around La Unión

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

Within 3 km, the terrain around La Unión has only modest variations in elevation — a maximum elevation change of 80 m around an average of 49 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 528 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,782 m.

The land around La Unión is covered by cropland (41%), trees (25%) and grassland (20%) within 3 km, trees (44%), cropland (29%) and grassland (25%) within 16 km, and trees (51%) and grassland (21%) within 80 km.

3 km

80 m

cropland 41%

16 km

528 m

trees 44%

80 km

1,782 m

trees 51%

treesgrasslandcroplandartificial surfaceswater

← September La Unión year-round climate November →Best places to visit in October

October weather nearby: Río Bueno 12 km · Paillaco 30 km · Osorno 32 km · Valdivia 55 km · Las Animas 55 km · Purranque 69 km · Frutillar 92 km · Panguipulli 96 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 La Unión (-40.2931°, -73.0817°, elevation 32 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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	15	5
2	15	5
3	15	5
4	15	6
5	15	6
6	15	6
7	15	6
8	15	6
9	15	6
10	15	6
11	15	6
12	15	6
13	15	6
14	15	6
15	15	6
16	15	6
17	15	6
18	15	6
19	15	6
20	16	6
21	16	6
22	16	6
23	16	6
24	16	6
25	16	6
26	16	6
27	16	6
28	16	7
29	16	7
30	16	7
31	16	7

	Clearer (%)	Cloudier (%)
1	31	69
2	29	71
3	29	71
4	30	70
5	30	70
6	29	71
7	29	71
8	29	71
9	30	70
10	30	70
11	30	70
12	30	70
13	30	70
14	30	70
15	31	69
16	31	69
17	32	68
18	33	67
19	33	67
20	33	67
21	33	67
22	34	66
23	36	64
24	36	64
25	36	64
26	36	64
27	36	64
28	36	64
29	35	65
30	35	65
31	35	65

	Rain chance (%)
1	42
2	42
3	43
4	43
5	43
6	43
7	43
8	43
9	43
10	42
11	42
12	42
13	41
14	41
15	41
16	41
17	41
18	41
19	41
20	42
21	42
22	42
23	42
24	42
25	42
26	42
27	42
28	42
29	42
30	42
31	41

	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
31	100

	Avg high (°C)	Avg low (°C)
1	15	5
2	15	5
3	15	5
4	15	6
5	15	6
6	15	6
7	15	6
8	15	6
9	15	6
10	15	6
11	15	6
12	15	6
13	15	6
14	15	6
15	15	6
16	15	6
17	15	6
18	15	6
19	15	6
20	16	6
21	16	6
22	16	6
23	16	6
24	16	6
25	16	6
26	16	6
27	16	6
28	16	7
29	16	7
30	16	7
31	16	7

	Clearer (%)	Cloudier (%)
1	31	69
2	29	71
3	29	71
4	30	70
5	30	70
6	29	71
7	29	71
8	29	71
9	30	70
10	30	70
11	30	70
12	30	70
13	30	70
14	30	70
15	31	69
16	31	69
17	32	68
18	33	67
19	33	67
20	33	67
21	33	67
22	34	66
23	36	64
24	36	64
25	36	64
26	36	64
27	36	64
28	36	64
29	35	65
30	35	65
31	35	65

	Rain chance (%)
1	42
2	42
3	43
4	43
5	43
6	43
7	43
8	43
9	43
10	42
11	42
12	42
13	41
14	41
15	41
16	41
17	41
18	41
19	41
20	42
21	42
22	42
23	42
24	42
25	42
26	42
27	42
28	42
29	42
30	42
31	41

	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
31	100

	Avg high (°C)	Avg low (°C)
1	15	5
2	15	5
3	15	5
4	15	6
5	15	6
6	15	6
7	15	6
8	15	6
9	15	6
10	15	6
11	15	6
12	15	6
13	15	6
14	15	6
15	15	6
16	15	6
17	15	6
18	15	6
19	15	6
20	16	6
21	16	6
22	16	6
23	16	6
24	16	6
25	16	6
26	16	6
27	16	6
28	16	7
29	16	7
30	16	7
31	16	7

	Clearer (%)	Cloudier (%)
1	31	69
2	29	71
3	29	71
4	30	70
5	30	70
6	29	71
7	29	71
8	29	71
9	30	70
10	30	70
11	30	70
12	30	70
13	30	70
14	30	70
15	31	69
16	31	69
17	32	68
18	33	67
19	33	67
20	33	67
21	33	67
22	34	66
23	36	64
24	36	64
25	36	64
26	36	64
27	36	64
28	36	64
29	35	65
30	35	65
31	35	65

	Rain chance (%)
1	42
2	42
3	43
4	43
5	43
6	43
7	43
8	43
9	43
10	42
11	42
12	42
13	41
14	41
15	41
16	41
17	41
18	41
19	41
20	42
21	42
22	42
23	42
24	42
25	42
26	42
27	42
28	42
29	42
30	42
31	41

	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
31	100