São Lourenço do Sul weather in March

In March, São Lourenço do Sul sees average daytime highs of 26°C and overnight lows near 20°C, with 101 mm of rain across 12.5 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 25°C by the end. The sky is clear or mostly clear about 31% 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 42 min by month's end. Set against the rest of the year, March is São Lourenço do Sul's 1st-clearest and 8th-windiest month. For the whole year in context, see São Lourenço do Sul's year-round climate.

Daytime high
26°
4th warmest
Overnight low
20°
10th coldest
Rainfall
101 mm
12.5 wet days
Daylight
12 h 12 min
7:30 AM – 7:45 PM
Cloud cover
56%
1st clearest
Wind
14 km/h
8th windiest
Solar energy
5.01 kWh/m²
Travel score
6.3
out of 10

São Lourenço do Sul is human settlement in Brazil.

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 25°C by the end.

A typical March day in São Lourenço do Sul reaches about 26°C in the afternoon and slips back to 20°C overnight — a 7°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 3°C warmer than April.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12721
22721
32721
42721
52720
62720
72720
82720
92720
102720
112720
122720
132720
142720
152720
162620
172620
182620
192619
202619
212619
222619
232619
242619
252619
262619
272619
282519
292519
302519
312518

São Lourenço do Sul weather by month

How March compares with the rest of the year at a glance. March is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 21°1101413.85.9
Feb27° / 21°11213.313.15.8
Mar26° / 20°10112.512.26.3
Apr24° / 17°1029.711.36.9
May20° / 14°101910.46.5
Jun18° / 11°1039.2105.9
Jul17° / 10°11910.110.25.6
Aug19° / 11°1169.910.96.1
Sep20° / 13°1391111.85.9
Oct22° / 15°13712.512.86.2
Nov24° / 17°989.913.66.9
Dec27° / 19°10411.4146.4

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in March, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 25% of March, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25347
35446
45446
55545
65644
75644
85644
95743
105743
115743
125842
135842
145842
155842
165842
175842
185743
195842
205743
215743
225743
235644
245644
255644
265644
275644
285644
295743
305743
315743

Chance of precipitation in March

Any precipitation

São Lourenço do Sul gets around 101 mm of rain over 12.5 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 40% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
144
243
342
442
541
641
740
840
940
1040
1140
1240
1340
1441
1541
1641
1741
1841
1941
2041
2141
2241
2341
2441
2540
2640
2739
2839
2938
3037
3137

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 58% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
139193632
2310203532
3310203531
4310213531
5310213530
6311223530
7311223529
8311223529
9311223528
10312223528
11312223627
12312233626
13412233625
14412233724
15412243722
16512243821
17513253819
18613253818
19613263916
20713263915
21713264014
22813274013
23813274012
24813274011
25913274110
2691427419
2791427409
28101427408
29101527408
30111527398
31111627388

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 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over March. Sunrise moves from 7:20 AM to 7:40 AM, and sunset from 8:03 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.77:208:03
212.77:208:02
312.77:218:00
412.67:227:59
512.67:237:58
612.67:237:57
712.57:247:56
812.57:257:55
912.57:267:53
1012.47:267:52
1112.47:277:51
1212.47:287:50
1312.37:287:48
1412.37:297:47
1512.37:307:46
1612.27:307:45
1712.27:317:43
1812.27:327:42
1912.17:337:41
2012.17:337:40
2112.17:347:38
2212.07:357:37
2312.07:357:36
2412.07:367:34
2511.97:377:33
2611.97:377:32
2711.97:387:30
2811.87:397:29
2911.87:397:28
3011.87:407:27
3111.77:407:25

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.01 kWh/m².

For context, solar energy here swings from a low near 2.45 kWh/m² to a high of 6.87 kWh/m² in December across the year — March's 5.01 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.0Bright
175.0Bright
185.0Bright
194.9Bright
204.9Bright
214.8Bright
224.8Bright
234.8Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.6Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in March

Is March a good time to visit São Lourenço do Sul?

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

6.3
Sightseeing
5th-best month of the year
6.2
Beach & pool
3rd-best month of the year

March is a reasonable time to visit São Lourenço do Sul for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São Lourenço do Sul in March

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

In March, São Lourenço do Sul sees daytime highs around 26°C and nights near 20°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near São Lourenço do Sul in March

The nearest coast averages about 25°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 26°C and coldest in July near 14°C.

It's comfortable for a long swim from Oct 31 to May 3 — about 6.1 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb26Warm
Mar25Warm
Apr22Refreshing
May19Cool
Jun16Cool
Jul14Bracing
Aug15Bracing
Sep16Cool
Oct19Cool
Nov21Refreshing
Dec24Refreshing

UV index in São Lourenço do Sul in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in São Lourenço do Sul peaks around December 22 at about 12 (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 highExtremeDec 22UV 12Jun 19UV 3
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar9Very high
Apr7High
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7Very high
Oct8Very high
Nov11Extreme
Dec13Extreme
Location & terrain

Where is São Lourenço do Sul?

São Lourenço do Sul sits at 31.4°S, 52.0°W, 13 m above sea level, in Brazil. The nearest listed city is Pelotas, 57 km away.

Topography around São Lourenço do Sul

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

Within 3 km, the terrain around São Lourenço do Sul has only modest variations in elevation — a maximum elevation change of 30 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 199 m; within 80 km, significant variations in elevation — a maximum elevation change of 507 m.

The land around São Lourenço do Sul is covered by water (26%) and cropland (23%) within 3 km, water (38%) and cropland (31%) within 16 km, and water (35%) and trees (28%) within 80 km.

3 km
30 m
16 km
199 m
80 km
507 m
treesgrasslandcroplandartificial surfaceswaterwetland
March weather nearby: Pelotas 57 km · Camaquã 59 km · Capão do Leão 65 km · Canguçu 66 km · São José do Norte 72 km · Rio Grande 75 km · Encruzilhada do Sul 105 km · Piratini 107 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 São Lourenço do Sul (-31.3653°, -51.9783°, elevation 13 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).