Barreira weather in May

In May, Barreira sees average daytime highs of 30°C and overnight lows near 23°C, with 100 mm of rain across 18.3 wet days and about 11.8 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 31% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of May to 11 h 48 min by month's end. Set against the rest of the year, May is Barreira's 8th-clearest and 10th-windiest month. For the whole year in context, see Barreira's year-round climate.

Daytime high
30°
10th warmest
Overnight low
23°
5th coldest
Rainfall
100 mm
18.3 wet days
Daylight
11 h 48 min
5:37 AM – 5:25 PM
Cloud cover
58%
8th clearest
Wind
8 km/h
10th windiest
Solar energy
4.89 kWh/m²
Travel score
4.2
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical May day in Barreira reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, May runs on par with April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233022
243022
253022
263022
273022
283022
293022
303022
313022

How May really feels in Barreira

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.

Barreira weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°10217.812.23.6
Feb30° / 23°12519.612.13.5
Mar30° / 23°17924.7123.3
Apr30° / 23°19624.811.93.4
May30° / 23°10018.311.84.2
Jun30° / 22°5212.211.85.0
Jul30° / 22°336.711.85.4
Aug32° / 22°82.111.95.2
Sep33° / 22°30.6124.9
Oct33° / 23°61.812.14.5
Nov33° / 23°93.212.24.4
Dec32° / 24°318.812.24.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 23% of May, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
24060
34159
44357
54555
64753
74852
85050
95050
105149
115149
125248
135248
145347
155446
165446
175545
185644
195644
205743
215842
225842
235941
246040
256139
266238
276337
286436
296535
306634
316634

Chance of precipitation in May

Any precipitation

Barreira gets around 100 mm of rain over 18.3 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 60% and peaks near 72% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
172
271
369
468
567
665
764
863
962
1062
1161
1261
1360
1460
1560
1660
1760
1859
1959
2058
2158
2257
2356
2455
2554
2654
2753
2852
2951
3050
3149

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11963
21963
31963
41963
52962
62962
72962
82962
92962
102962
112962
123952
133952
143952
153952
163952
173952
183952
194942
204942
214942
224951
235941
245941
256931
267921
277921
288911
299901
3010900
3112880

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 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
17calm
27calm
37calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 54 min at the start of May to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 5:36 AM to 5:39 AM, and sunset from 5:27 PM to 5:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:365:27
211.85:365:27
311.85:365:27
411.85:365:27
511.85:365:26
611.85:365:26
711.85:365:26
811.85:365:26
911.85:365:26
1011.85:365:26
1111.85:365:25
1211.85:365:25
1311.85:365:25
1411.85:365:25
1511.85:375:25
1611.85:375:25
1711.85:375:25
1811.85:375:25
1911.85:375:25
2011.85:375:25
2111.85:375:25
2211.85:375:25
2311.85:375:25
2411.85:385:25
2511.85:385:25
2611.85:385:25
2711.85:385:25
2811.85:385:25
2911.85:385:25
3011.85:395:25
3111.85:395:25

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.89 kWh/m².

For context, solar energy here swings from a low near 4.74 kWh/m² to a high of 6.66 kWh/m² in October across the year — May's 4.89 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in May

Hazard calendar for Barreira

In seasonPeak

In May, Barreira sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Barreira's monsoon runs January–May, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Barreira?

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

4.2
Sightseeing
7th-best month of the year
5.6
Beach & pool
8th-best month of the year

May is a reasonable time to visit Barreira for sightseeing.

What to pack for Barreira in May

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

In May, Barreira sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Barreira in May

The nearest coast averages about 29°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 55 km away) is warmest in April at about 29°C and coldest in August near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul27Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in Barreira in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Barreira peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 15UV 15Jun 22UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme
Location & terrain

Where is Barreira?

Barreira sits at 4.3°S, 38.6°W, 127 m above sea level, in Brazil. The nearest listed city is Redenção, 12 km away.

Topography around Barreira

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

Within 3 km, the terrain around Barreira has significant variations in elevation — a maximum elevation change of 448 m around an average of 149 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 679 m; within 80 km, large variations in elevation — a maximum elevation change of 1,081 m.

The land around Barreira is covered by grassland (57%) and trees (29%) within 3 km, grassland (50%) and trees (28%) within 16 km, and shrubs (42%) and grassland (24%) within 80 km.

3 km
448 m
16 km
679 m
80 km
1,081 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Redenção 12 km · Chorozinho 16 km · Aracoiaba 21 km · Ocara 23 km · Pacajus 24 km · Baturité 27 km · Horizonte 27 km · Guaiúba 27 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 Barreira (-4.2869°, -38.6431°, elevation 127 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).