Rio do Sul weather in March

In March, Rio do Sul sees average daytime highs of 27°C and overnight lows near 18°C, with 105 mm of rain across 15.2 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 8th-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 13% of the time in March, and the air most often feels muggy.

Daylight stretches from about 12 h 36 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Rio do Sul's 6th-clearest and 8th-windiest month. For the whole year in context, see Rio do Sul's year-round climate.

Daytime high
27°
4th warmest
Overnight low
18°
10th coldest
Rainfall
105 mm
15.2 wet days
Daylight
12 h 12 min
7:22 AM – 7:34 PM
Cloud cover
70%
6th clearest
Wind
6 km/h
8th windiest
Solar energy
4.5 kWh/m²
Travel score
5.6
out of 10

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 Rio do Sul reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°C. Set against its neighbours, March runs about 1°C cooler than February and about 2°C warmer than April.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12819
22819
32819
42819
52719
62719
72719
82719
92718
102718
112718
122718
132718
142718
152718
162718
172718
182718
192718
202618
212618
222618
232617
242617
252617
262617
272617
282617
292617
302617
312617

Rio do Sul weather by month

How March compares with the rest of the year at a glance. March is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°18420.413.54.7
Feb28° / 19°15418.3134.8
Mar27° / 18°10515.212.25.6
Apr24° / 15°829.411.46.8
May21° / 12°1059.110.76.5
Jun19° / 10°1119.810.36.0
Jul19° / 991010.56.0
Aug20° / 10°949.6116.4
Sep22° / 13°15112.411.86.0
Oct23° / 15°15015.112.75.7
Nov25° / 16°12114.813.35.8
Dec27° / 18°14916.513.75.3

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% 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 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23169
33169
43268
53268
63268
73268
83268
93268
103169
113268
123268
133367
143367
153367
163367
173367
183268
193268
203268
213466
223367
233367
243367
253367
263367
273367
283466
293466
303466
313367

Chance of precipitation in March

Any precipitation

Rio do Sul gets around 105 mm of rain over 15.2 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 50% and peaks near 60% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
160
259
358
458
557
656
755
855
954
1053
1153
1252
1351
1451
1550
1649
1748
1847
1947
2046
2145
2245
2345
2444
2544
2644
2743
2843
2942
3041
3141

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 53% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
107255414
207255513
307265512
407275511
507275610
60727579
70828568
80828577
90828577
100829576
110829585
120930565
130930574
1411031544
1511031544
1611132533
1711233513
1811334493
1921435472
2021436452
2121537442
2221538422
2331639412
2431639402
2531740392
2631740382
2731741372
2841841362
2941841352
3041841342
3151941342

Wind in March

Winds average 6 km/h in March.

Across March, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 36 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 48 minutes over March. Sunrise moves from 7:14 AM to 7:30 AM, and sunset from 7:50 PM to 7:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.67:147:50
212.67:147:49
312.67:157:48
412.57:157:47
512.57:167:46
612.57:177:45
712.47:177:44
812.47:187:43
912.47:187:42
1012.47:197:41
1112.37:197:40
1212.37:207:39
1312.37:217:38
1412.37:217:36
1512.27:227:35
1612.27:227:34
1712.27:237:33
1812.17:237:32
1912.17:247:31
2012.17:247:30
2112.17:257:29
2212.07:257:27
2312.07:267:26
2412.07:267:25
2512.07:277:24
2611.97:277:23
2711.97:287:22
2811.97:287:21
2911.87:297:19
3011.87:297:18
3111.87:307:17

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.5 kWh/m².

For context, solar energy here swings from a low near 2.5 kWh/m² to a high of 5.6 kWh/m² in December across the year — March's 4.5 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.5Bright
184.4Bright
194.4Bright
204.4Bright
214.3Bright
224.3Bright
234.3Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.1Bright
294.1Bright
304.1Bright
314.1Bright
Planning a trip in March

Is March a good time to visit Rio do Sul?

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

5.6
Sightseeing
9th-best month of the year
5.6
Beach & pool
2nd-best month of the year

March is a reasonable time to visit Rio do Sul for sightseeing.

What to pack for Rio do Sul in March

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

In March, Rio do Sul sees daytime highs around 27°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 15 days see rain.

rain gearlight clothessun protection

UV index in Rio do Sul in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rio do Sul peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 19UV 14Jul 10UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5Moderate
Aug6High
Sep8Very high
Oct9Very high
Nov12Extreme
Dec13Extreme

Air quality in Rio do Sul 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 Rio do Sul is worst in September — around 15 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 915 µg/m³Dec 1710 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr11Good
May13Moderate
Jun13Moderate
Jul14Moderate
Aug15Moderate
Sep15Moderate
Oct12Good
Nov10Good
Dec10Good
Location & terrain

Where is Rio do Sul?

Rio do Sul sits at 27.2°S, 49.6°W, 346 m above sea level, in Brazil. The nearest listed city is Presidente Getúlio, 18 km away.

Topography around Rio do Sul

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

Within 3 km, the terrain around Rio do Sul has significant variations in elevation — a maximum elevation change of 353 m around an average of 424 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 703 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,735 m.

The land around Rio do Sul is covered by trees (51%) and artificial surfaces (35%) within 3 km, trees (65%) and grassland (21%) within 16 km, and trees (80%) within 80 km.

3 km
353 m
16 km
703 m
80 km
1,735 m
treesgrasslandcroplandartificial surfaceswater
March weather nearby: Presidente Getúlio 18 km · Ibirama 21 km · Ituporanga 23 km · Pouso Redondo 29 km · Taió 37 km · Indaial 54 km · Otacílio Costa 56 km · Timbó 57 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 Rio do Sul (-27.2142°, -49.6431°, elevation 346 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. 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).