Uruguaiana weather in January

In January, Uruguaiana sees average daytime highs of 32°C and overnight lows near 21°C, with 139 mm of rain across 10.4 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 48% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 54 min at the start of January to 13 h 24 min by month's end. Set against the rest of the year, January is Uruguaiana's 3rd-clearest and 8th-windiest month. For the whole year in context, see Uruguaiana's year-round climate.

Daytime high
32°
1st warmest
Overnight low
21°
12th coldest
Rainfall
139 mm
10.4 wet days
Daylight
13 h 42 min
7:06 AM – 8:49 PM
Cloud cover
47%
3rd clearest
Wind
12 km/h
8th windiest
Solar energy
6.8 kWh/m²
Travel score
4.3
out of 10

Uruguaiana 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 32°C through the month.

A typical January day in Uruguaiana reaches about 32°C in the afternoon and slips back to 21°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 35°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C warmer than February.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13221
23221
33221
43221
53221
63221
73221
83221
93221
103221
113221
123221
133221
143221
153221
163221
173221
183221
193221
203221
213221
223121
233121
243121
253121
263121
273121
283121
293121
303121
313121

How January really feels in Uruguaiana

Once humidity and wind are folded in, January averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Uruguaiana weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 21°13910.413.74.3
Feb31° / 21°12710.313.14.7
Mar29° / 19°1249.212.25.8
Apr26° / 16°1779.511.37.0
May22° / 13°1157.810.57.0
Jun19° / 11°1138.510.16.4
Jul19° / 10°1037.510.36.6
Aug21° / 11°897.910.97.1
Sep23° / 13°1268.911.87.1
Oct26° / 15°18910.712.76.7
Nov28° / 17°1368.413.56.3
Dec31° / 20°1359.313.94.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
36139
46139
56139
66238
76238
86238
96238
106238
116238
126238
136238
146238
156238
166238
176238
186337
196337
206337
216238
226238
236238
246337
256238
266238
276238
286139
296238
306139
316139

Chance of precipitation in January

Any precipitation

Uruguaiana gets around 139 mm of rain over 10.4 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 34% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
131
231
332
432
533
633
733
834
934
1034
1134
1235
1334
1434
1534
1634
1733
1833
1933
2033
2133
2233
2333
2434
2534
2635
2736
2836
2937
3037
3138

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 64% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
16141928304
25131928304
35131928304
46131928314
56121928314
66121929314
76121929314
86121929303
96111930303
106112030303
116112031302
126112131292
136112132292
146102233282
155102233281
165102234271
175102334271
185102334271
19592335261
20592435261
21592435261
22492436261
23492336262
24492336272
25482336272
26382336282
27382236292
28372236303
29372135303
30372135313
31372135313

Wind in January

Winds average 12 km/h in January.

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

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light 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 January

DaylightNight

Daylight runs from about 13 h 54 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 30 minutes over January. Sunrise moves from 6:55 AM to 7:19 AM, and sunset from 8:48 PM to 8:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.96:558:48
213.96:568:48
313.96:568:48
413.96:578:49
513.96:588:49
613.86:588:49
713.86:598:49
813.87:008:49
913.87:018:49
1013.87:018:49
1113.87:028:49
1213.87:038:49
1313.87:048:49
1413.77:058:49
1513.77:058:49
1613.77:068:49
1713.77:078:49
1813.77:088:49
1913.77:098:49
2013.77:098:49
2113.67:108:48
2213.67:118:48
2313.67:128:48
2413.67:138:48
2513.67:148:47
2613.57:148:47
2713.57:158:46
2813.57:168:46
2913.57:178:46
3013.57:188:45
3113.47:198:45

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.8 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 6.99 kWh/m² in December across the year — January's 6.8 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
106.9Intense
116.9Intense
126.9Intense
136.9Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.6Intense
266.6Intense
276.6Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in January

Is January a good time to visit Uruguaiana?

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

4.3
Sightseeing
12th-best month of the year
6.6
Beach & pool
5th-best month of the year

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

What to pack for Uruguaiana in January

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

In January, Uruguaiana sees daytime highs around 32°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Uruguaiana in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Uruguaiana peaks around January 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highVery highExtremeJan 24UV 13Jun 21UV 4
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5Moderate
Jun4Moderate
Jul4Moderate
Aug5Moderate
Sep7Very high
Oct7High
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Uruguaiana?

Uruguaiana sits at 29.8°S, 57.1°W, 79 m above sea level, in Brazil. The nearest listed city is Paso de los Libres, 5.0 km away.

Topography around Uruguaiana

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

Within 3 km, the terrain around Uruguaiana has only modest variations in elevation — a maximum elevation change of 40 m around an average of 55 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 96 m; within 80 km, significant variations in elevation — a maximum elevation change of 255 m.

The land around Uruguaiana is covered by artificial surfaces (36%) and water (25%) within 3 km, grassland (40%) within 16 km, and grassland (66%) within 80 km.

3 km
40 m
16 km
96 m
80 km
255 m
treesgrasslandcroplandartificial surfaceswaterwetland
January weather nearby: Paso de los Libres 5.0 km · Monte Caseros 76 km · Itaqui 87 km · Curuzú Cuatiá 93 km · Quaraí 93 km · Artigas 94 km · Mercedes 115 km · Alegrete 125 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 Uruguaiana (-29.7547°, -57.0883°, elevation 79 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).