Santa Maria weather in May

In May, Santa Maria sees average daytime highs of 21°C and overnight lows near 12°C, with 127 mm of rain across 9.6 wet days and about 10.5 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 33% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of May to 10 h 18 min by month's end. Set against the rest of the year, May is Santa Maria's 10th-clearest and 11th-windiest month. For the whole year in context, see Santa Maria's year-round climate.

Daytime high
21°
9th warmest
Overnight low
12°
5th coldest
Rainfall
127 mm
9.6 wet days
Daylight
10 h 30 min
8:16 AM – 6:47 PM
Cloud cover
60%
10th clearest
Wind
9 km/h
11th windiest
Solar energy
2.85 kWh/m²
Travel score
6.6
out of 10

Santa Maria is human settlement in Brazil.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 20°C by the end.

A typical May day in Santa Maria reaches about 21°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 27°C. Set against its neighbours, May runs about 4°C cooler than April and about 2°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12313
22313
32313
42313
52313
62213
72213
82213
92213
102213
112212
122212
132212
142112
152112
162112
172112
182112
192112
202112
212112
222011
232011
242011
252011
262011
272011
282011
292011
302011
312011

Santa Maria weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 20°15913.813.74.6
Feb29° / 19°14412.513.14.9
Mar28° / 18°12411.312.25.8
Apr25° / 15°14410.111.36.8
May21° / 12°1279.610.56.6
Jun19° / 10°13710.110.16.1
Jul19° / 14910.310.36.1
Aug21° / 11°1229.910.96.6
Sep22° / 12°15810.911.86.5
Oct24° / 14°20812.512.76.4
Nov27° / 16°13710.213.56.4
Dec30° / 18°15811.813.95.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34852
44951
54852
64852
74753
84753
94753
104654
114654
124555
134555
144555
154555
164555
174555
184555
194555
204654
214555
224555
234555
244555
254456
264456
274456
284456
294456
304357
314357

Chance of precipitation in May

Any precipitation

Santa Maria gets around 127 mm of rain over 9.6 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 31% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
531
631
731
831
931
1031
1131
1231
1331
1431
1531
1631
1731
1831
1931
2031
2131
2231
2331
2431
2530
2630
2730
2830
2930
3030
3130

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1352525141
2362525141
3362524131
4372624121
5372624121
6382723111
7382823100
8392922100
939292290
1040292280
1141302280
1241302270
1342302170
1442302170
1543292160
1644292160
1744292160
1845292150
1946282050
2048282050
2149271940
2250271940
2352261840
2453251840
2554251740
2654251740
2755251640
2857241630
2958241530
3058241530
3158241530

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
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 May

DaylightNight

Daylight runs from about 10 h 54 min at the start of May to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over May. Sunrise moves from 8:06 AM to 8:25 AM, and sunset from 6:59 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.98:066:59
210.88:076:58
310.88:086:57
410.88:086:56
510.88:096:55
610.78:106:54
710.78:106:53
810.78:116:53
910.78:126:52
1010.68:126:51
1110.68:136:50
1210.68:136:50
1310.68:146:49
1410.68:156:48
1510.58:156:48
1610.58:166:47
1710.58:176:46
1810.58:176:46
1910.58:186:45
2010.48:196:45
2110.48:196:44
2210.48:206:44
2310.48:206:43
2410.48:216:43
2510.38:226:42
2610.38:226:42
2710.38:236:41
2810.38:236:41
2910.38:246:41
3010.38:256:40
3110.38:256:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.85 kWh/m².

For context, solar energy here swings from a low near 2.42 kWh/m² to a high of 6.72 kWh/m² in December across the year — May's 2.85 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.0Moderate
103.0Moderate
113.0Moderate
123.0Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.8Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in May

Is May a good time to visit Santa Maria?

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

6.6
Sightseeing
2nd-best month of the year
4.2
Beach & pool
9th-best month of the year

May is a reasonable time to visit Santa Maria for sightseeing.

What to pack for Santa Maria in May

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

In May, Santa Maria sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Santa Maria in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santa Maria peaks around January 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 19UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar10Extreme
Apr8Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct7High
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Santa Maria?

Santa Maria sits at 29.7°S, 53.8°W, 146 m above sea level, in Brazil. The nearest listed city is São Pedro do Sul, 37 km away.

Topography around Santa Maria

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

Within 3 km, the terrain around Santa Maria has significant variations in elevation — a maximum elevation change of 300 m around an average of 129 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 445 m; within 80 km, significant variations in elevation — a maximum elevation change of 589 m.

The land around Santa Maria is covered by artificial surfaces (53%) and trees (38%) within 3 km, trees (42%) and grassland (33%) within 16 km, and cropland (47%), grassland (27%) and trees (24%) within 80 km.

3 km
300 m
16 km
445 m
80 km
589 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: São Pedro do Sul 37 km · Júlio de Castilhos 52 km · Agudo 55 km · São Sepé 58 km · Tupanciretã 67 km · São Gabriel 88 km · Cachoeira do Sul 96 km · Caçapava do Sul 97 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 Santa Maria (-29.6842°, -53.8069°, elevation 146 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).