Santiago weather in August

In August, Santiago sees average daytime highs of 17°C and overnight lows near 5°C, with 81 mm of precipitation across 7.8 wet days and about 10.8 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 18°C by the end. The sky is clear or mostly clear about 40% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of August to 11 h 12 min by month's end. Set against the rest of the year, August is Santiago's 9th-clearest and 9th-windiest month. For the whole year in context, see Santiago's year-round climate.

Daytime high: 17°; 10th warmest
Overnight low: 5°; 3rd coldest
Precipitation: 81 mm; 7.8 wet days
Daylight: 10 h 42 min; 8:24 AM – 7:09 PM
Cloud cover: 51%; 9th clearest
Wind: 5 km/h; 9th windiest
Solar energy: 3.73 kWh/m²
Travel score: 5.8; out of 10

Santiago is capital city of Chile.

Air quality: High; PM2.5 25.4 µg/m³ · 2019
Density: 5,773/km²; people per km²
Founded: 1541

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

← July Santiago 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

Highs climb over the month, from about 16°C in the first days to 18°C by the end.

A typical August day in Santiago reaches about 17°C in the afternoon and slips back to 5°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 22°C. Set against its neighbours, August runs about 2°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)	16	16	16	16	16	16	16	16	16	16	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18
Avg low (°C)	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	6	6	6	6	6

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

Santiago 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	29° / 16°	3	0.7	14	7.4
Feb	29° / 16°	5	0.8	13.2	7.8
Mar	27° / 14°	9	1.2	12.3	8.7
Apr	23° / 10°	28	3.2	11.2	8.3
May	19° / 7°	62	5.9	10.3	6.7
Jun	16° / 4°	109	7.3	9.8	5.2
Jul	15° / 4°	86	7.1	10	5.1
Aug	17° / 5°	81	7.8	10.8	5.8
Sep	19° / 7°	55	7.7	11.8	6.6
Oct	22° / 9°	39	6.2	12.8	7.4
Nov	25° / 12°	16	2.6	13.7	8.6
Dec	28° / 14°	6	1.1	14.2	8.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 46%.

	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 (%)	52	52	52	52	53	53	53	53	54	54	54	54	55	56	56	56	55	55	54	54	54	54	55	55	54	54	53	52	52	51	51
Cloudier (%)	48	48	48	48	47	47	47	47	46	46	46	46	45	44	44	44	45	45	46	46	46	46	45	45	46	46	47	48	48	49	49

	Clearer (%)	Cloudier (%)
1	52	48
2	52	48
3	52	48
4	52	48
5	53	47
6	53	47
7	53	47
8	53	47
9	54	46
10	54	46
11	54	46
12	54	46
13	55	45
14	56	44
15	56	44
16	56	44
17	55	45
18	55	45
19	54	46
20	54	46
21	54	46
22	54	46
23	55	45
24	55	45
25	54	46
26	54	46
27	53	47
28	52	48
29	52	48
30	51	49
31	51	49

Chance of precipitation in August

Any precipitation

Santiago gets around 81 mm of rain and snow over 7.8 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 25% and peaks near 28% 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 (%)	24	24	24	25	25	25	25	26	26	26	26	25	25	25	25	25	25	25	25	25	25	25	25	25	25	26	26	26	27	27	28

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

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 5 km/h in August.

Across August, daily wind ranges from about 5 km/h on the calmest days to 5 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)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
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	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm
31	5	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 18 min at the start of August to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over August. Sunrise moves from 8:39 AM to 8:05 AM, and sunset from 6:58 PM to 7:20 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)	10.3	10.3	10.4	10.4	10.4	10.5	10.5	10.5	10.5	10.6	10.6	10.6	10.7	10.7	10.7	10.7	10.8	10.8	10.8	10.9	10.9	10.9	11.0	11.0	11.0	11.1	11.1	11.1	11.2	11.2	11.2
Sunrise (AM)	8:39	8:38	8:37	8:36	8:35	8:35	8:34	8:33	8:32	8:31	8:30	8:29	8:28	8:26	8:25	8:24	8:23	8:22	8:21	8:20	8:18	8:17	8:16	8:15	8:13	8:12	8:11	8:09	8:08	8:07	8:05
Sunset (PM)	6:58	6:59	7:00	7:01	7:01	7:02	7:03	7:03	7:04	7:05	7:06	7:06	7:07	7:08	7:08	7:09	7:10	7:11	7:11	7:12	7:13	7:13	7:14	7:15	7:16	7:16	7:17	7:18	7:18	7:19	7:20

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.3	8:39	6:58
2	10.3	8:38	6:59
3	10.4	8:37	7:00
4	10.4	8:36	7:01
5	10.4	8:35	7:01
6	10.5	8:35	7:02
7	10.5	8:34	7:03
8	10.5	8:33	7:03
9	10.5	8:32	7:04
10	10.6	8:31	7:05
11	10.6	8:30	7:06
12	10.6	8:29	7:06
13	10.7	8:28	7:07
14	10.7	8:26	7:08
15	10.7	8:25	7:08
16	10.7	8:24	7:09
17	10.8	8:23	7:10
18	10.8	8:22	7:11
19	10.8	8:21	7:11
20	10.9	8:20	7:12
21	10.9	8:18	7:13
22	10.9	8:17	7:13
23	11.0	8:16	7:14
24	11.0	8:15	7:15
25	11.0	8:13	7:16
26	11.1	8:12	7:16
27	11.1	8:11	7:17
28	11.1	8:09	7:18
29	11.2	8:08	7:18
30	11.2	8:07	7:19
31	11.2	8:05	7:20

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.73 kWh/m².

For context, solar energy here swings from a low near 2.45 kWh/m² to a high of 8.88 kWh/m² in December across the year — August's 3.73 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)	3.2	3.2	3.2	3.3	3.3	3.4	3.4	3.4	3.5	3.5	3.5	3.6	3.6	3.7	3.7	3.8	3.8	3.8	3.9	3.9	3.9	4.0	4.0	4.0	4.1	4.1	4.1	4.2	4.2	4.2	4.3
Level	Moderate	Moderate	Moderate	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

	Solar energy (kWh/m²)	Level
1	3.2	Moderate
2	3.2	Moderate
3	3.2	Moderate
4	3.3	Moderate
5	3.3	Moderate
6	3.4	Moderate
7	3.4	Moderate
8	3.4	Moderate
9	3.5	Moderate
10	3.5	Moderate
11	3.5	Moderate
12	3.6	Moderate
13	3.6	Moderate
14	3.7	Moderate
15	3.7	Moderate
16	3.8	Moderate
17	3.8	Moderate
18	3.8	Moderate
19	3.9	Moderate
20	3.9	Moderate
21	3.9	Moderate
22	4.0	Moderate
23	4.0	Bright
24	4.0	Bright
25	4.1	Bright
26	4.1	Bright
27	4.1	Bright
28	4.2	Bright
29	4.2	Bright
30	4.2	Bright
31	4.3	Bright

Planning a trip in August

Is August a good time to visit Santiago?

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

5.8

Sightseeing

10th-best month of the year

1.3

Beach & pool

10th-best month of the year

August is a reasonable time to visit Santiago for sightseeing.

What to pack for Santiago in August

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

In August, Santiago sees daytime highs around 17°C and nights near 5°C. Worth packing: a warm layer. About 8 days see rain.

a warm layer

UV index in Santiago in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santiago peaks around January 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 15 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	13	12	10	5	3	3	3	3	6	9	10	12
Level	Extreme	Extreme	Very high	Moderate	Moderate	Moderate	Moderate	Moderate	High	Very high	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	12	Extreme
Mar	10	Very high
Apr	5	Moderate
May	3	Moderate
Jun	3	Moderate
Jul	3	Moderate
Aug	3	Moderate
Sep	6	High
Oct	9	Very high
Nov	10	Extreme
Dec	12	Extreme

Air quality in Santiago 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 Santiago is worst in July — around 45 µg/m³ PM2.5 (poor), about 3.9× the cleanest month (December, 11 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Santiago's WHO annual average of 25.4 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	12	13	17	23	33	40	45	40	32	23	15	11
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Poor	Poor	Poor	Moderate	Moderate	Moderate	Good

	PM2.5 (µg/m³)	Level
Jan	12	Moderate
Feb	13	Moderate
Mar	17	Moderate
Apr	23	Moderate
May	33	Moderate
Jun	40	Poor
Jul	45	Poor
Aug	40	Poor
Sep	32	Moderate
Oct	23	Moderate
Nov	15	Moderate
Dec	11	Good

Location & terrain

Where is Santiago?

Santiago sits at 33.5°S, 70.6°W, 556 m above sea level, in Chile. The nearest listed city is Ñuñoa, 6.0 km away.

Topography around Santiago

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

Within 3 km, the terrain around Santiago has only modest variations in elevation — a maximum elevation change of 92 m around an average of 548 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,909 m; within 80 km, extreme variations in elevation — a maximum elevation change of 6,036 m.

The land around Santiago is covered by artificial surfaces (91%) within 3 km, artificial surfaces (61%) within 16 km, and shrubs (27%), bare terrain (25%) and grassland (21%) within 80 km.

3 km

92 m

artificial surfaces 91%

16 km

1,909 m

artificial surfaces 61%

80 km

6,036 m

shrubs 27%

treesshrubsgrasslandcroplandartificial surfacesbare terrainsnow and ice

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

August weather nearby: Ñuñoa 6.0 km · Lo Prado 7.0 km · Renca 8.0 km · Peñalolén 11 km · Quilicura 12 km · Maipú 13 km · La Pintana 14 km · San Bernardo 16 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 Santiago (-33.4569°, -70.6483°, elevation 556 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	16	4
2	16	4
3	16	4
4	16	4
5	16	4
6	16	4
7	16	4
8	16	4
9	16	4
10	16	4
11	17	4
12	17	4
13	17	4
14	17	4
15	17	4
16	17	5
17	17	5
18	17	5
19	17	5
20	17	5
21	17	5
22	17	5
23	17	5
24	18	5
25	18	5
26	18	5
27	18	6
28	18	6
29	18	6
30	18	6
31	18	6

	Clearer (%)	Cloudier (%)
1	52	48
2	52	48
3	52	48
4	52	48
5	53	47
6	53	47
7	53	47
8	53	47
9	54	46
10	54	46
11	54	46
12	54	46
13	55	45
14	56	44
15	56	44
16	56	44
17	55	45
18	55	45
19	54	46
20	54	46
21	54	46
22	54	46
23	55	45
24	55	45
25	54	46
26	54	46
27	53	47
28	52	48
29	52	48
30	51	49
31	51	49

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

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

	Clearer (%)	Cloudier (%)
1	52	48
2	52	48
3	52	48
4	52	48
5	53	47
6	53	47
7	53	47
8	53	47
9	54	46
10	54	46
11	54	46
12	54	46
13	55	45
14	56	44
15	56	44
16	56	44
17	55	45
18	55	45
19	54	46
20	54	46
21	54	46
22	54	46
23	55	45
24	55	45
25	54	46
26	54	46
27	53	47
28	52	48
29	52	48
30	51	49
31	51	49

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

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

	Clearer (%)	Cloudier (%)
1	52	48
2	52	48
3	52	48
4	52	48
5	53	47
6	53	47
7	53	47
8	53	47
9	54	46
10	54	46
11	54	46
12	54	46
13	55	45
14	56	44
15	56	44
16	56	44
17	55	45
18	55	45
19	54	46
20	54	46
21	54	46
22	54	46
23	55	45
24	55	45
25	54	46
26	54	46
27	53	47
28	52	48
29	52	48
30	51	49
31	51	49

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

	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