Osorno weather in August

In August, Osorno sees average daytime highs of 11°C and overnight lows near 4°C, with 213 mm of precipitation across 18.3 wet days and about 10.4 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 11°C through the month. The sky is clear or mostly clear about 11% of the time in August, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of August to 11 hours by month's end. Set against the rest of the year, August is Osorno's 9th-clearest and 4th-windiest month. For the whole year in context, see Osorno's year-round climate.

Daytime high: 11°; 10th warmest
Overnight low: 4°; 2nd coldest
Precipitation: 213 mm; 18.3 wet days
Daylight: 10 h 24 min; 8:45 AM – 7:08 PM
Cloud cover: 75%; 9th clearest
Wind: 11 km/h; 4th windiest
Solar energy: 2.18 kWh/m²
Travel score: 2.2; out of 10

Osorno is city in Chile.

Air quality: High; PM2.5 33.8 µg/m³ · 2019
Density: 143/km²; people per km²
Founded: 1558

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

← July Osorno year-round climate September →Best places to visit in August

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 11°C through the month.

A typical August day in Osorno reaches about 11°C in the afternoon and slips back to 4°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 13°C. Set against its neighbours, August runs about 1°C warmer than July and about 2°C cooler than September.

	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)	10	10	10	10	10	10	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	12	12	12	12	12	12	12	12
Avg low (°C)	3	3	3	3	3	3	3	3	3	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4

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

Osorno weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	21° / 10°	39	6.2	14.6	7.3
Feb	22° / 10°	41	5.2	13.6	7.5
Mar	19° / 9°	65	8.3	12.3	6.5
Apr	16° / 7°	114	11.4	11	4.6
May	13° / 6°	194	15.7	9.8	3.0
Jun	10° / 4°	251	18.8	9.2	1.9
Jul	10° / 3°	232	18.2	9.4	1.8
Aug	11° / 4°	213	18.3	10.4	2.2
Sep	13° / 4°	129	14.3	11.7	3.1
Oct	15° / 6°	114	13.7	13.1	4.0
Nov	17° / 7°	77	10.5	14.3	5.1
Dec	19° / 9°	67	8.2	14.8	6.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 14% of August, with mostly cloudy or overcast conditions the remaining 75%.

	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 (%)	28	27	27	27	27	27	26	26	26	26	26	26	26	26	25	25	24	24	23	23	23	24	24	25	25	25	25	26	27	26	27
Cloudier (%)	72	73	73	73	73	73	74	74	74	74	74	74	74	74	75	75	76	76	77	77	77	76	76	75	75	75	75	74	73	74	73

	Clearer (%)	Cloudier (%)
1	28	72
2	27	73
3	27	73
4	27	73
5	27	73
6	27	73
7	26	74
8	26	74
9	26	74
10	26	74
11	26	74
12	26	74
13	26	74
14	26	74
15	25	75
16	25	75
17	24	76
18	24	76
19	23	77
20	23	77
21	23	77
22	24	76
23	24	76
24	25	75
25	25	75
26	25	75
27	25	75
28	26	74
29	27	73
30	26	74
31	27	73

Chance of precipitation in August

Any precipitation

Osorno gets around 213 mm of rain and snow over 18.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 58% and peaks near 61% on the wettest days, and about 0 day brings snow.

	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 (%)	59	59	59	59	59	60	60	61	61	61	61	60	60	59	59	58	58	58	58	58	58	57	57	56	56	55	55	55	56	56	56

	Rain chance (%)
1	59
2	59
3	59
4	59
5	59
6	60
7	60
8	61
9	61
10	61
11	61
12	60
13	60
14	59
15	59
16	58
17	58
18	58
19	58
20	58
21	58
22	57
23	57
24	56
25	56
26	55
27	55
28	55
29	56
30	56
31	56

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August 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 August

Winds average 11 km/h in August.

Across August, daily wind ranges from about 10 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	31
Wind speed (km/h)	10	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	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	11	calm
3	11	calm
4	11	calm
5	11	calm
6	11	calm
7	11	calm
8	11	calm
9	11	calm
10	11	calm
11	11	calm
12	11	calm
13	11	calm
14	11	calm
15	11	calm
16	11	calm
17	11	calm
18	11	calm
19	11	calm
20	11	calm
21	11	calm
22	11	calm
23	11	calm
24	11	calm
25	11	calm
26	11	calm
27	11	calm
28	11	calm
29	10	calm
30	10	calm
31	10	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 9 h 48 min at the start of August to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over August. Sunrise moves from 9:04 AM to 8:22 AM, and sunset from 6:53 PM to 7:23 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)	9.8	9.8	9.9	9.9	10.0	10.0	10.0	10.1	10.1	10.1	10.2	10.2	10.3	10.3	10.3	10.4	10.4	10.5	10.5	10.5	10.6	10.6	10.7	10.7	10.7	10.8	10.8	10.9	10.9	11.0	11.0
Sunrise (AM)	9:04	9:03	9:02	9:01	9:00	8:58	8:57	8:56	8:55	8:54	8:52	8:51	8:50	8:48	8:47	8:45	8:44	8:43	8:41	8:40	8:38	8:37	8:35	8:33	8:32	8:30	8:29	8:27	8:26	8:24	8:22
Sunset (PM)	6:53	6:54	6:55	6:56	6:57	6:58	6:59	7:00	7:01	7:02	7:03	7:04	7:05	7:06	7:07	7:08	7:09	7:10	7:11	7:12	7:13	7:14	7:15	7:16	7:17	7:18	7:19	7:20	7:21	7:22	7:23

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.8	9:04	6:53
2	9.8	9:03	6:54
3	9.9	9:02	6:55
4	9.9	9:01	6:56
5	10.0	9:00	6:57
6	10.0	8:58	6:58
7	10.0	8:57	6:59
8	10.1	8:56	7:00
9	10.1	8:55	7:01
10	10.1	8:54	7:02
11	10.2	8:52	7:03
12	10.2	8:51	7:04
13	10.3	8:50	7:05
14	10.3	8:48	7:06
15	10.3	8:47	7:07
16	10.4	8:45	7:08
17	10.4	8:44	7:09
18	10.5	8:43	7:10
19	10.5	8:41	7:11
20	10.5	8:40	7:12
21	10.6	8:38	7:13
22	10.6	8:37	7:14
23	10.7	8:35	7:15
24	10.7	8:33	7:16
25	10.7	8:32	7:17
26	10.8	8:30	7:18
27	10.8	8:29	7:19
28	10.9	8:27	7:20
29	10.9	8:26	7:21
30	11.0	8:24	7:22
31	11.0	8:22	7:23

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 2.18 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 — August's 2.18 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)	1.8	1.9	1.9	1.9	1.9	1.9	2.0	2.0	2.0	2.0	2.1	2.1	2.1	2.1	2.2	2.2	2.2	2.2	2.3	2.3	2.3	2.4	2.4	2.4	2.5	2.5	2.5	2.6	2.6	2.7	2.7
Level	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	1.8	Dim
2	1.9	Dim
3	1.9	Dim
4	1.9	Dim
5	1.9	Dim
6	1.9	Dim
7	2.0	Dim
8	2.0	Dim
9	2.0	Moderate
10	2.0	Moderate
11	2.1	Moderate
12	2.1	Moderate
13	2.1	Moderate
14	2.1	Moderate
15	2.2	Moderate
16	2.2	Moderate
17	2.2	Moderate
18	2.2	Moderate
19	2.3	Moderate
20	2.3	Moderate
21	2.3	Moderate
22	2.4	Moderate
23	2.4	Moderate
24	2.4	Moderate
25	2.5	Moderate
26	2.5	Moderate
27	2.5	Moderate
28	2.6	Moderate
29	2.6	Moderate
30	2.7	Moderate
31	2.7	Moderate

Planning a trip in August

Hazard calendar for Osorno

In seasonPeak

In August, Osorno sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Osorno's rainy season runs April–October, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is August a good time to visit Osorno?

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

2.2

Sightseeing

10th-best month of the year

0.0

Beach & pool

9th-best month of the year

August is a weaker month for outdoor sightseeing in Osorno.

What to pack for Osorno in August

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

In August, Osorno sees daytime highs around 11°C and nights near 4°C. Pack a warm layer and rain gear. About 18 days see rain.

a warm layerrain gear

Sea temperature near Osorno in August

The nearest coast averages about 11°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 63 km away) is warmest in January at about 15°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)	15	14	14	14	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	15	Bracing
Feb	14	Bracing
Mar	14	Bracing
Apr	14	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 Osorno in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Osorno 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 Osorno in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Osorno is worst in March — around 43 µg/m³ PM2.5 (poor), about 1.9× the cleanest month (February, 23 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Osorno's WHO annual average of 33.8 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	23	23	43	42	36	34	35	40	39	34	31	26
Level	Moderate	Moderate	Poor	Poor	Poor	Moderate	Moderate	Poor	Poor	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	23	Moderate
Feb	23	Moderate
Mar	43	Poor
Apr	42	Poor
May	36	Poor
Jun	34	Moderate
Jul	35	Moderate
Aug	40	Poor
Sep	39	Poor
Oct	34	Moderate
Nov	31	Moderate
Dec	26	Moderate

Location & terrain

Where is Osorno?

Osorno sits at 40.6°S, 73.1°W, 37 m above sea level, in Chile. The nearest listed city is Río Bueno, 31 km away.

Topography around Osorno

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

Within 3 km, the terrain around Osorno has only modest variations in elevation — a maximum elevation change of 68 m around an average of 47 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 284 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,650 m.

The land around Osorno is covered by artificial surfaces (40%), trees (23%) and grassland (23%) within 3 km, grassland (45%), cropland (26%) and trees (25%) within 16 km, and trees (49%) and grassland (23%) within 80 km.

3 km

68 m

artificial surfaces 40%

16 km

284 m

grassland 45%

80 km

2,650 m

trees 49%

treesgrasslandcroplandartificial surfaceswater

← July Osorno year-round climate September →Best places to visit in August

August weather nearby: Río Bueno 31 km · La Unión 32 km · Purranque 38 km · Paillaco 60 km · Frutillar 61 km · Llanquihue 77 km · Puerto Varas 84 km · Valdivia 85 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 Osorno (-40.574°, -73.1335°, elevation 37 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	10	3
2	10	3
3	10	3
4	10	3
5	10	3
6	10	3
7	11	3
8	11	3
9	11	3
10	11	4
11	11	4
12	11	4
13	11	4
14	11	4
15	11	4
16	11	4
17	11	4
18	11	4
19	11	4
20	11	4
21	11	4
22	11	4
23	11	4
24	12	4
25	12	4
26	12	4
27	12	4
28	12	4
29	12	4
30	12	4
31	12	4

	Clearer (%)	Cloudier (%)
1	28	72
2	27	73
3	27	73
4	27	73
5	27	73
6	27	73
7	26	74
8	26	74
9	26	74
10	26	74
11	26	74
12	26	74
13	26	74
14	26	74
15	25	75
16	25	75
17	24	76
18	24	76
19	23	77
20	23	77
21	23	77
22	24	76
23	24	76
24	25	75
25	25	75
26	25	75
27	25	75
28	26	74
29	27	73
30	26	74
31	27	73

	Rain chance (%)
1	59
2	59
3	59
4	59
5	59
6	60
7	60
8	61
9	61
10	61
11	61
12	60
13	60
14	59
15	59
16	58
17	58
18	58
19	58
20	58
21	58
22	57
23	57
24	56
25	56
26	55
27	55
28	55
29	56
30	56
31	56

	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	10	3
2	10	3
3	10	3
4	10	3
5	10	3
6	10	3
7	11	3
8	11	3
9	11	3
10	11	4
11	11	4
12	11	4
13	11	4
14	11	4
15	11	4
16	11	4
17	11	4
18	11	4
19	11	4
20	11	4
21	11	4
22	11	4
23	11	4
24	12	4
25	12	4
26	12	4
27	12	4
28	12	4
29	12	4
30	12	4
31	12	4

	Clearer (%)	Cloudier (%)
1	28	72
2	27	73
3	27	73
4	27	73
5	27	73
6	27	73
7	26	74
8	26	74
9	26	74
10	26	74
11	26	74
12	26	74
13	26	74
14	26	74
15	25	75
16	25	75
17	24	76
18	24	76
19	23	77
20	23	77
21	23	77
22	24	76
23	24	76
24	25	75
25	25	75
26	25	75
27	25	75
28	26	74
29	27	73
30	26	74
31	27	73

	Rain chance (%)
1	59
2	59
3	59
4	59
5	59
6	60
7	60
8	61
9	61
10	61
11	61
12	60
13	60
14	59
15	59
16	58
17	58
18	58
19	58
20	58
21	58
22	57
23	57
24	56
25	56
26	55
27	55
28	55
29	56
30	56
31	56

	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	10	3
2	10	3
3	10	3
4	10	3
5	10	3
6	10	3
7	11	3
8	11	3
9	11	3
10	11	4
11	11	4
12	11	4
13	11	4
14	11	4
15	11	4
16	11	4
17	11	4
18	11	4
19	11	4
20	11	4
21	11	4
22	11	4
23	11	4
24	12	4
25	12	4
26	12	4
27	12	4
28	12	4
29	12	4
30	12	4
31	12	4

	Clearer (%)	Cloudier (%)
1	28	72
2	27	73
3	27	73
4	27	73
5	27	73
6	27	73
7	26	74
8	26	74
9	26	74
10	26	74
11	26	74
12	26	74
13	26	74
14	26	74
15	25	75
16	25	75
17	24	76
18	24	76
19	23	77
20	23	77
21	23	77
22	24	76
23	24	76
24	25	75
25	25	75
26	25	75
27	25	75
28	26	74
29	27	73
30	26	74
31	27	73

	Rain chance (%)
1	59
2	59
3	59
4	59
5	59
6	60
7	60
8	61
9	61
10	61
11	61
12	60
13	60
14	59
15	59
16	58
17	58
18	58
19	58
20	58
21	58
22	57
23	57
24	56
25	56
26	55
27	55
28	55
29	56
30	56
31	56

	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