Osório weather in March

In March, Osório sees average daytime highs of 26°C and overnight lows near 20°C, with 115 mm of rain across 12.2 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 26°C by the end. The sky is clear or mostly clear about 35% of the time in March, and the air most often feels muggy.

Daylight stretches from about 12 h 42 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Osório's 2nd-clearest and 7th-windiest month. For the whole year in context, see Osório's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
20°
10th coldest
Rainfall
115 mm
12.2 wet days
Daylight
12 h 12 min
7:24 AM – 7:37 PM
Cloud cover
54%
2nd clearest
Wind
14 km/h
7th windiest
Solar energy
4.99 kWh/m²
Travel score
6.4
out of 10

Osório is Río Grande del Sur.

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 26°C by the end.

A typical March day in Osório reaches about 26°C in the afternoon and slips back to 20°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 29°C. Set against its neighbours, March runs about 1°C cooler than February and about 2°C warmer than April.

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
162621
172620
182620
192620
202620
212620
222620
232620
242620
252620
262620
272620
282620
292620
302620
312519

Osório weather by month

How March compares with the rest of the year at a glance. March is the 3rd-warmest and 5th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 19% of March, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25149
35149
45248
55248
65248
75347
85446
95446
105545
115545
125644
135644
145743
155743
165743
175743
185743
195743
205743
215644
225644
235545
245545
255545
265545
275545
285545
295446
305446
315446

Chance of precipitation in March

Any precipitation

Osório gets around 115 mm of rain over 12.2 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 43% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
143
242
342
441
540
640
739
839
938
1038
1138
1238
1339
1439
1539
1640
1740
1840
1940
2040
2140
2240
2340
2440
2539
2639
2739
2838
2937
3036
3136

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the muggy band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1031732462
2031732452
3031833442
4031833442
5031834432
6031834422
7031834422
8041935411
9041935401
10041935401
11041936391
12052036381
13052037361
14162037351
15162138341
16172138321
17182239300
18182240290
19192240270
20192341260
211102341240
221102342230
232112342220
242112343210
252112443200
262112444190
272122444180
283122444170
293122444170
303122543160
314122543160

Wind in March

Winds average 14 km/h in March.

Across March, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 42 min at the start of March to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over March. Sunrise moves from 7:14 AM to 7:33 AM, and sunset from 7:55 PM to 7:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.77:147:55
212.67:157:54
312.67:157:52
412.67:167:51
512.67:177:50
612.57:177:49
712.57:187:48
812.57:197:47
912.47:197:46
1012.47:207:45
1112.47:217:43
1212.37:217:42
1312.37:227:41
1412.37:237:40
1512.37:237:39
1612.27:247:37
1712.27:257:36
1812.27:257:35
1912.17:267:34
2012.17:277:33
2112.17:277:31
2212.07:287:30
2312.07:287:29
2412.07:297:28
2511.97:307:26
2611.97:307:25
2711.97:317:24
2811.97:317:23
2911.87:327:21
3011.87:337:20
3111.87:337:19

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.99 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 — March's 4.99 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.1Bright
145.1Bright
155.0Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in March

Is March a good time to visit Osório?

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

6.4
Sightseeing
4th-best month of the year
6.2
Beach & pool
1st-best month of the year

March 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 March

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

In March, Osório sees daytime highs around 26°C and nights near 20°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Osório in March

The nearest coast averages about 24°C in March — 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 March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 10 (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 March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March 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
March 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).