Santo Antônio da Patrulha weather in March

In March, Santo Antônio da Patrulha sees average daytime highs of 27°C and overnight lows near 18°C, with 138 mm of rain across 14.3 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 7th-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 33% 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 Santo Antônio da Patrulha's 3rd-clearest and 11th-windiest month. For the whole year in context, see Santo Antônio da Patrulha's year-round climate.

Daytime high
27°
4th warmest
Overnight low
18°
10th coldest
Rainfall
138 mm
14.3 wet days
Daylight
12 h 12 min
7:25 AM – 7:38 PM
Cloud cover
56%
3rd clearest
Wind
9 km/h
11th windiest
Solar energy
4.85 kWh/m²
Travel score
6.0
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 Santo Antônio da Patrulha 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 31°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)
12819
22819
32819
42819
52719
62719
72719
82719
92719
102719
112719
122719
132719
142719
152718
162718
172718
182718
192618
202618
212618
222618
232618
242618
252618
262618
272617
282617
292617
302617
312617

Santo Antônio da Patrulha weather by month

How March compares with the rest of the year at a glance. March is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°17216.813.75.4
Feb28° / 19°14316.313.15.2
Mar27° / 18°13814.312.26.0
Apr24° / 16°1031111.36.7
May21° / 13°12210.510.56.4
Jun19° / 11°1121010.16.1
Jul19° / 10°14011.110.36.0
Aug21° / 11°12310.710.96.4
Sep21° / 13°15312.111.86.1
Oct23° / 15°18014.412.76.1
Nov25° / 16°12912.613.56.4
Dec27° / 18°1451413.95.9

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 20% of March, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
25050
34951
45149
55149
65149
75248
85347
95347
105446
115545
125446
135545
145545
155545
165545
175545
185545
195545
205446
215446
225446
235347
245347
255248
265248
275248
285248
295248
305248
315248

Chance of precipitation in March

Any precipitation

Santo Antônio da Patrulha gets around 138 mm of rain over 14.3 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 47% and peaks near 53% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
153
253
352
452
551
650
749
849
948
1048
1147
1247
1347
1447
1547
1647
1747
1846
1946
2045
2145
2245
2344
2444
2544
2644
2743
2843
2942
3041
3140

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 42% of days. Sticky, muggy-or-worse air turns up on roughly 60% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
106223834
206223833
306223932
406234031
506234030
606244129
706244228
816244227
916254325
1017254424
1117254423
1217254522
1318264520
1418264619
1519274618
16110284516
17110284515
18111294514
19212304413
20212304412
21213314311
22213314310
2321432439
2431432439
2531433428
2631433427
2731533427
2841533416
2941534416
3051534416
3151634406

Wind in March

Winds average 9 km/h in March.

Across March, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 7:15 AM to 7:34 AM, and sunset from 7:56 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.77:157:56
212.67:167:55
312.67:167:53
412.67:177:52
512.67:187:51
612.57:197:50
712.57:197:49
812.57:207:48
912.47:217:47
1012.47:217:46
1112.47:227:44
1212.37:227:43
1312.37:237:42
1412.37:247:41
1512.37:247:40
1612.27:257:38
1712.27:267:37
1812.27:267:36
1912.17:277:35
2012.17:287:34
2112.17:287:32
2212.07:297:31
2312.07:297:30
2412.07:307:29
2511.97:317:27
2611.97:317:26
2711.97:327:25
2811.97:327:24
2911.87:337:22
3011.87:347:21
3111.87:347:20

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.85 kWh/m².

For context, solar energy here swings from a low near 2.49 kWh/m² to a high of 6.4 kWh/m² in December across the year — March's 4.85 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
135.0Bright
144.9Bright
154.9Bright
164.9Bright
174.8Bright
184.8Bright
194.8Bright
204.7Bright
214.7Bright
224.6Bright
234.6Bright
244.6Bright
254.5Bright
264.5Bright
274.5Bright
284.4Bright
294.4Bright
304.4Bright
314.3Bright
Planning a trip in March

Is March a good time to visit Santo Antônio da Patrulha?

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

6.0
Sightseeing
8th-best month of the year
6.0
Beach & pool
2nd-best month of the year

March is a reasonable time to visit Santo Antônio da Patrulha for sightseeing.

What to pack for Santo Antônio da Patrulha in March

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

In March, Santo Antônio da Patrulha sees daytime highs around 27°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

Sea temperature near Santo Antônio da Patrulha 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 51 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 Santo Antônio da Patrulha 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 Santo Antônio da Patrulha 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 Santo Antônio da Patrulha 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 Santo Antônio da Patrulha 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 Santo Antônio da Patrulha?

Santo Antônio da Patrulha sits at 29.8°S, 50.5°W, 118 m above sea level, in Brazil. The nearest listed city is Rolante, 19 km away.

Topography around Santo Antônio da Patrulha

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santo Antônio da Patrulha.

Within 3 km, the terrain around Santo Antônio da Patrulha has only modest variations in elevation — a maximum elevation change of 208 m around an average of 76 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 850 m; within 80 km, large variations in elevation — a maximum elevation change of 1,050 m.

The land around Santo Antônio da Patrulha is covered by grassland (51%), trees (27%) and artificial surfaces (20%) within 3 km, grassland (41%) and trees (39%) within 16 km, and trees (38%), water (24%) and grassland (23%) within 80 km.

3 km
208 m
16 km
850 m
80 km
1,050 m
treesgrasslandcroplandartificial surfaceswaterwetland
March weather nearby: Rolante 19 km · Osório 25 km · Taquara 31 km · Parobé 37 km · Igrejinha 38 km · São Francisco de Paula 42 km · Tramandaí 42 km · Imbé 42 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 Santo Antônio da Patrulha (-29.8175°, -50.5197°, elevation 118 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).