Santiago weather in October

In October, Santiago sees average daytime highs of 25°C and overnight lows near 15°C, with 236 mm of rain across 12.6 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 26°C by the end. The sky is clear or mostly clear about 34% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of October to 13 h 06 min by month's end. Set against the rest of the year, October is Santiago's 12th-clearest and 2nd-windiest month. For the whole year in context, see Santiago's year-round climate.

Daytime high
25°
7th warmest
Overnight low
15°
6th coldest
Rainfall
236 mm
12.6 wet days
Daylight
12 h 42 min
7:03 AM – 7:46 PM
Cloud cover
60%
12th clearest
Wind
13 km/h
2nd windiest
Solar energy
5.22 kWh/m²
Travel score
6.5
out of 10

Santiago is human settlement in Brazil.

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 26°C by the end.

A typical October day in Santiago reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 30°C. Set against its neighbours, October runs about 3°C warmer than September and about 3°C cooler than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12313
22313
32314
42314
52414
62414
72414
82414
92414
102414
112414
122414
132415
142515
152515
162515
172515
182515
192515
202515
212515
222515
232515
242515
252515
262515
272615
282615
292615
302615
312615

Santiago weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 20°17414.213.74.6
Feb29° / 19°15413.4134.9
Mar28° / 18°14411.712.25.9
Apr25° / 15°16110.511.36.8
May21° / 12°1259.410.66.6
Jun19° / 10°1369.910.26.1
Jul19° / 1509.910.36.2
Aug21° / 11°1309.2116.8
Sep22° / 12°16010.511.86.6
Oct25° / 15°23612.612.76.5
Nov27° / 16°15510.413.56.4
Dec29° / 18°16912.213.85.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in October, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of October, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34555
44555
54456
64456
74357
84357
94258
104357
114357
124357
134456
144357
154357
164456
174456
184357
194357
204357
214555
224555
234456
244456
254654
264654
274654
284654
294852
304852
314951

Chance of precipitation in October

Any precipitation

Santiago gets around 236 mm of rain over 12.6 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
239
339
440
540
641
741
842
942
1041
1141
1241
1341
1441
1541
1641
1741
1841
1940
2040
2140
2239
2339
2439
2539
2639
2739
2839
2939
3038
3138

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 31% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1422820100
2412821100
3402821110
4382822120
5372723120
6362724130
7362624140
8352625150
9342625150
10332525160
11332526160
12322526160
13312527160
14312527160
15302528160
16292529160
17282530160
18272531160
19272531170
20262531171
21262531171
22262531171
23262531171
24262531171
25262531171
26262531181
27262531181
28262530181
29262430181
30272430181
31272429191

Wind in October

Winds average 13 km/h in October.

Across October, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over October. Sunrise moves from 7:20 AM to 6:49 AM, and sunset from 7:37 PM to 7:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.37:207:37
212.37:197:37
312.37:187:38
412.47:177:39
512.47:157:39
612.47:147:40
712.57:137:40
812.57:127:41
912.57:117:42
1012.57:107:42
1112.67:087:43
1212.67:077:43
1312.67:067:44
1412.77:057:45
1512.77:047:45
1612.77:037:46
1712.77:027:47
1812.87:017:47
1912.87:007:48
2012.86:597:49
2112.96:587:49
2212.96:577:50
2312.96:567:51
2412.96:557:51
2513.06:547:52
2613.06:537:53
2713.06:537:54
2813.06:527:54
2913.16:517:55
3013.16:507:56
3113.16:497:57

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.22 kWh/m².

For context, solar energy here swings from a low near 2.52 kWh/m² to a high of 6.78 kWh/m² in December across the year — October's 5.22 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.1Bright
135.1Bright
145.1Bright
155.2Bright
165.2Bright
175.3Bright
185.3Bright
195.3Bright
205.4Bright
215.4Bright
225.5Bright
235.5Bright
245.6Bright
255.6Bright
265.7Bright
275.7Bright
285.8Bright
295.8Bright
305.9Bright
315.9Bright
Planning a trip in October

Is October a good time to visit Santiago?

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

6.5
Sightseeing
5th-best month of the year
5.7
Beach & pool
7th-best month of the year

October is a reasonable time to visit Santiago for sightseeing.

What to pack for Santiago in October

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

In October, Santiago sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Santiago in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 6 — 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 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighExtremeJan 20UV 14Jun 19UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar10Extreme
Apr8Very high
May5Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct6High
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Santiago?

Santiago sits at 29.2°S, 54.9°W, 426 m above sea level, in Brazil. The nearest listed city is São Francisco de Assis, 47 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 127 m around an average of 392 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 285 m; within 80 km, significant variations in elevation — a maximum elevation change of 475 m.

The land around Santiago is covered by grassland (39%), artificial surfaces (31%) and trees (26%) within 3 km, grassland (53%) and trees (27%) within 16 km, and cropland (41%), grassland (38%) and trees (20%) within 80 km.

3 km
127 m
16 km
285 m
80 km
475 m
treesgrasslandcroplandartificial surfaces
October weather nearby: São Francisco de Assis 47 km · São Pedro do Sul 82 km · São Luiz Gonzaga 88 km · Tupanciretã 101 km · Alegrete 111 km · Júlio de Castilhos 115 km · Santo Ângelo 115 km · Santa Maria 116 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 (-29.1917°, -54.8672°, elevation 426 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).