Santa Maria da Boa Vista weather in May

In May, Santa Maria da Boa Vista sees average daytime highs of 32°C and overnight lows near 22°C, with 21 mm of rain across 4.7 wet days and about 11.6 hours of daylight. It is the 9th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 24% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 42 min at the start of May to 11 h 30 min by month's end. Set against the rest of the year, May is Santa Maria da Boa Vista's 10th-clearest and 7th-windiest month. For the whole year in context, see Santa Maria da Boa Vista's year-round climate.

Daytime high
32°
9th warmest
Overnight low
22°
5th coldest
Rainfall
21 mm
4.7 wet days
Daylight
11 h 36 min
5:48 AM – 5:24 PM
Cloud cover
61%
10th clearest
Wind
16 km/h
7th windiest
Solar energy
4.47 kWh/m²
Travel score
4.6
out of 10

Santa Maria da Boa Vista is 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

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in Santa Maria da Boa Vista reaches about 32°C in the afternoon and slips back to 22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13223
23223
33222
43222
53222
63222
73222
83222
93222
103222
113222
123222
133222
143222
153222
163222
173222
183222
193222
203222
213122
223122
233122
243122
253122
263122
273122
283122
293122
303122
313122

How May really feels in Santa Maria da Boa Vista

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Santa Maria da Boa Vista weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 24°769.212.53.2
Feb33° / 23°7510.112.33.2
Mar33° / 23°9211.612.13.3
Apr33° / 23°518.111.83.8
May32° / 22°214.711.64.6
Jun30° / 21°82.111.55.6
Jul30° / 20°51.211.55.9
Aug31° / 20°30.611.75.4
Sep33° / 21°20.411.94.4
Oct35° / 22°6112.23.4
Nov35° / 23°193.112.43.0
Dec35° / 24°414.712.53.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34555
44555
54654
64654
74654
84753
94753
104654
114654
124753
134753
144654
154654
164654
174654
184654
194753
204753
214654
224753
234753
244753
254753
264753
274852
284951
294951
304951
314852

Chance of precipitation in May

Any precipitation

Santa Maria da Boa Vista gets around 21 mm of rain over 4.7 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 15% and peaks near 18% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
118
218
318
417
517
617
716
816
915
1015
1115
1215
1314
1414
1515
1615
1715
1815
1915
2015
2115
2215
2315
2414
2514
2614
2713
2813
2912
3011
3111

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 61% of days. Sticky, muggy-or-worse air turns up on roughly 67% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11266211
21266310
31276210
4127639
5127639
6128638
7128638
8129628
9130627
10130627
11131626
12131626
13131626
14132625
15132625
16132625
17132625
18132625
19132625
20132625
21132625
22133624
23133624
24134614
25134614
26135604
27136594
28137584
29138574
30140563
31141553

Wind in May

Winds average 16 km/h in May.

Across May, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3017light breeze
3117light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 42 min at the start of May to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over May. Sunrise moves from 5:46 AM to 5:51 AM, and sunset from 5:27 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:465:27
211.75:465:27
311.75:465:27
411.75:465:26
511.75:465:26
611.75:465:26
711.75:465:25
811.65:465:25
911.65:475:25
1011.65:475:25
1111.65:475:24
1211.65:475:24
1311.65:475:24
1411.65:475:24
1511.65:475:24
1611.65:485:24
1711.65:485:23
1811.65:485:23
1911.65:485:23
2011.65:485:23
2111.65:495:23
2211.65:495:23
2311.65:495:23
2411.65:495:23
2511.65:495:23
2611.55:505:23
2711.55:505:23
2811.55:505:23
2911.55:505:23
3011.55:515:23
3111.55:515:23

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.47 kWh/m².

For context, solar energy here swings from a low near 3.9 kWh/m² to a high of 6.73 kWh/m² in October across the year — May's 4.47 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.6Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.1Bright
Planning a trip in May

Is May a good time to visit Santa Maria da Boa Vista?

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

4.6
Sightseeing
4th-best month of the year
7.2
Beach & pool
5th-best month of the year

May is a reasonable time to visit Santa Maria da Boa Vista for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santa Maria da Boa Vista in May

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

In May, Santa Maria da Boa Vista sees daytime highs around 32°C and nights near 22°C. Pack light clothes. About 5 days see rain.

light clothes

UV index in Santa Maria da Boa Vista in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Santa Maria da Boa Vista peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 15Jul 13UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun10Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Santa Maria da Boa Vista?

Santa Maria da Boa Vista sits at 8.8°S, 39.8°W, 351 m above sea level, in Brazil. The nearest listed city is Curaçá, 22 km away.

Topography around Santa Maria da Boa Vista

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

Within 3 km, the terrain around Santa Maria da Boa Vista has only modest variations in elevation — a maximum elevation change of 142 m around an average of 361 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 270 m; within 80 km, significant variations in elevation — a maximum elevation change of 521 m.

The land around Santa Maria da Boa Vista is covered by shrubs (47%) within 3 km, shrubs (81%) within 16 km, and shrubs (86%) within 80 km.

3 km
142 m
16 km
270 m
80 km
521 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Curaçá 22 km · Lagoa Grande 53 km · Cabrobó 65 km · Abaré 79 km · Parnamirim 84 km · Belém de São Francisco 95 km · Petrolina 99 km · Juazeiro 100 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 da Boa Vista (-8.8078°, -39.8256°, elevation 351 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).