Santiago weather in January

In January, Santiago sees average daytime highs of 30°C and overnight lows near 20°C, with 174 mm of rain across 14.2 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 38% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 48 min at the start of January to 13 h 24 min by month's end. Set against the rest of the year, January is Santiago's 7th-clearest and 8th-windiest month. For the whole year in context, see Santiago's year-round climate.

Daytime high
30°
1st warmest
Overnight low
20°
12th coldest
Rainfall
174 mm
14.2 wet days
Daylight
13 h 42 min
6:58 AM – 8:39 PM
Cloud cover
54%
7th clearest
Wind
11 km/h
8th windiest
Solar energy
6.53 kWh/m²
Travel score
4.6
out of 10

Santiago is human settlement in Brazil.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical January day in Santiago reaches about 30°C in the afternoon and slips back to 20°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°C. Set against its neighbours, January runs on par with December and about 1°C warmer than February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13020
23020
33020
43020
53020
63020
73020
83020
93020
103020
113020
123020
133020
143020
153020
163020
173020
183020
193020
203020
213020
223020
233020
243020
253020
263020
273020
283020
293020
303020
313020

Santiago weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 2nd-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45842
55743
65743
75842
85743
95743
105842
115743
125743
135743
145842
155743
165743
175743
185743
195644
205644
215644
225644
235644
245545
255545
265545
275545
285545
295545
305446
315446

Chance of precipitation in January

Any precipitation

Santiago gets around 174 mm of rain over 14.2 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
142
242
343
443
544
644
744
845
945
1046
1146
1247
1347
1447
1548
1648
1747
1847
1947
2047
2147
2247
2347
2447
2547
2647
2748
2848
2948
3048
3148

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 63% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1415223424
2415223425
3415223425
4414223426
5414223426
6413223426
7513223526
8513213526
9512213626
10512213725
11511213725
12511213824
13511213924
14510224023
15510224023
16510224122
17510224122
18510224222
19510224221
20410234221
21410234221
22410234222
23310224222
24310224223
25310224224
26210224225
2729224126
2829214127
2929214028
3029214029
3129213929

Wind in January

Winds average 11 km/h in January.

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

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 48 min at the start of January to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over January. Sunrise moves from 6:47 AM to 7:11 AM, and sunset from 8:38 PM to 8:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.86:478:38
213.86:488:38
313.86:498:38
413.86:498:38
513.86:508:39
613.86:518:39
713.86:528:39
813.86:528:39
913.86:538:39
1013.86:548:39
1113.76:558:39
1213.76:558:39
1313.76:568:39
1413.76:578:39
1513.76:588:39
1613.76:588:39
1713.76:598:39
1813.67:008:39
1913.67:018:39
2013.67:028:39
2113.67:028:38
2213.67:038:38
2313.67:048:38
2413.57:058:38
2513.57:068:37
2613.57:078:37
2713.57:078:37
2813.57:088:36
2913.47:098:36
3013.47:108:35
3113.47:118:35

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.53 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 — January's 6.53 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in January

Is January a good time to visit Santiago?

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

4.6
Sightseeing
12th-best month of the year
6.3
Beach & pool
5th-best month of the year

January is a reasonable time to visit Santiago for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santiago in January

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

In January, Santiago sees daytime highs around 30°C and nights near 20°C. Pack light clothes, rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

UV index in Santiago in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). 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
January 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).