Osório weather in January

In January, Osório sees average daytime highs of 27°C and overnight lows near 21°C, with 124 mm of rain across 13.4 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 30% of the time in January, and the air most often feels oppressive.

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 Osório's 8th-clearest and 5th-windiest month. For the whole year in context, see Osório's year-round climate.

Daytime high
27°
1st warmest
Overnight low
21°
11th coldest
Rainfall
124 mm
13.4 wet days
Daylight
13 h 42 min
6:39 AM – 8:22 PM
Cloud cover
59%
8th clearest
Wind
15 km/h
5th windiest
Solar energy
6.31 kWh/m²
Travel score
6.0
out of 10

Osório is Río Grande del Sur.

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 27°C through the month.

A typical January day in Osório reaches about 27°C in the afternoon and slips back to 21°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 31°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12721
22721
32721
42721
52721
62721
72721
82721
92721
102721
112721
122721
132721
142721
152721
162721
172721
182721
192721
202721
212721
222721
232721
242721
252721
262722
272722
282822
292822
302822
312822

Osório weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 21°12413.413.76.0
Feb27° / 21°10613.213.15.8
Mar26° / 20°11512.212.26.4
Apr24° / 18°889.411.37.0
May21° / 15°1099.910.56.5
Jun19° / 13°1029.210.16.2
Jul18° / 12°1259.910.36.0
Aug19° / 13°1131010.96.3
Sep20° / 14°13811.311.86.0
Oct22° / 16°15212.612.76.2
Nov24° / 18°10810.813.56.8
Dec26° / 20°11111.513.96.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35050
44951
54951
64951
75050
85050
95050
105050
115050
125149
135050
145050
155050
165050
175050
184951
194951
205050
215050
224951
234951
244951
254951
264951
274852
284951
294951
304951
314852

Chance of precipitation in January

Any precipitation

Osório gets around 124 mm of rain over 13.4 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 43% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
139
239
340
440
541
641
741
842
942
1042
1142
1242
1343
1443
1543
1643
1743
1844
1944
2044
2144
2245
2345
2445
2546
2646
2746
2847
2947
3047
3147

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 81% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1151833421
2151733431
3151734431
4141734431
5141635431
6141635431
7141536431
8141536431
9141436431
10151437431
11151337431
12151337431
13151338431
14151338431
15151338421
16151338421
17151338421
18151438421
19151437421
20151437422
21151437422
22141436432
23041436432
24041436443
25041335453
26031335453
27031334463
28031334464
29031333474
30031333475
31031332475

Wind in January

Winds average 15 km/h in January.

Across January, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light 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 6:27 AM to 6:51 AM, and sunset from 8:21 PM to 8:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.96:278:21
213.96:288:21
313.96:298:21
413.96:298:22
513.96:308:22
613.96:318:22
713.86:328:22
813.86:328:22
913.86:338:22
1013.86:348:22
1113.86:358:22
1213.86:358:22
1313.86:368:22
1413.86:378:22
1513.76:388:22
1613.76:398:22
1713.76:398:22
1813.76:408:22
1913.76:418:22
2013.76:428:22
2113.66:438:21
2213.66:448:21
2313.66:448:21
2413.66:458:20
2513.66:468:20
2613.56:478:20
2713.56:488:19
2813.56:498:19
2913.56:498:19
3013.56:508:18
3113.46:518:18

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.31 kWh/m².

For context, solar energy here swings from a low near 2.51 kWh/m² to a high of 6.6 kWh/m² in December across the year — January's 6.31 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.0Intense
Planning a trip in January

Is January a good time to visit Osório?

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

6.0
Sightseeing
9th-best month of the year
6.2
Beach & pool
3rd-best month of the year

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

What to pack for Osório in January

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

In January, Osório sees daytime highs around 27°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

light clothessun protectionrain gear

Sea temperature near Osório in January

The nearest coast averages about 24°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 30 km away) is warmest in February at about 25°C and coldest in August near 16°C.

It's comfortable for a long swim from Nov 9 to May 19 — about 6.3 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb25Warm
Mar24Warm
Apr23Refreshing
May20Refreshing
Jun18Cool
Jul16Cool
Aug16Cool
Sep17Cool
Oct19Cool
Nov20Refreshing
Dec23Refreshing

UV index in Osório 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 Osório peaks around January 17 at about 13 (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 highModerateVery highExtremeJan 17UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr7Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in Osório in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Osório is worst in August — around 15 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (February, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1815 µg/m³Feb 207 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar7Good
Apr8Good
May8Good
Jun8Good
Jul11Good
Aug15Moderate
Sep12Good
Oct9Good
Nov8Good
Dec8Good
Location & terrain

Where is Osório?

Osório sits at 29.9°S, 50.3°W, 18 m above sea level, in Brazil. The nearest listed city is Imbé, 17 km away.

Topography around Osório

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

Within 3 km, the terrain around Osório has significant variations in elevation — a maximum elevation change of 391 m around an average of 95 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 696 m; within 80 km, large variations in elevation — a maximum elevation change of 1,050 m.

The land around Osório is covered by trees (45%), grassland (25%) and artificial surfaces (24%) within 3 km, trees (36%), grassland (25%) and water (23%) within 16 km, and trees (32%), water (32%) and grassland (22%) within 80 km.

3 km
391 m
16 km
696 m
80 km
1,050 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Imbé 17 km · Tramandaí 17 km · Xangri-lá 24 km · Santo Antônio da Patrulha 25 km · Capão da Canoa 30 km · Cidreira 33 km · Rolante 40 km · Taquara 56 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 Osório (-29.8867°, -50.2697°, elevation 18 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).