Rio Real weather in May

In May, Rio Real sees average daytime highs of 29°C and overnight lows near 22°C, with 77 mm of rain across 18.4 wet days and about 11.5 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 24% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of May to 11 h 24 min by month's end. Set against the rest of the year, May is Rio Real's 11th-clearest and 11th-windiest month. For the whole year in context, see Rio Real's year-round climate.

Daytime high
29°
8th warmest
Overnight low
22°
6th coldest
Rainfall
77 mm
18.4 wet days
Daylight
11 h 30 min
5:44 AM – 5:12 PM
Cloud cover
58%
11th clearest
Wind
10 km/h
11th windiest
Solar energy
4.01 kWh/m²
Travel score
4.6
out of 10

Rio Real 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

Day-to-day highs hold fairly steady near 29°C through the month.

A typical May day in Rio Real reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
42922
52922
62922
72922
82922
92922
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232822
242821
252821
262821
272821
282821
292821
302821
312821

How May really feels in Rio Real

Once humidity and wind are folded in, May averages 10 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
10
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.

Rio Real weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°4910.512.64.0
Feb32° / 23°4512.112.43.7
Mar32° / 23°4913.512.13.7
Apr31° / 23°6616.111.84.0
May29° / 22°7718.411.54.6
Jun27° / 21°712011.35.0
Jul27° / 20°5618.711.45.4
Aug27° / 19°4616.311.65.7
Sep28° / 20°3612.711.95.6
Oct30° / 21°309.112.35.2
Nov31° / 22°388.512.54.6
Dec32° / 23°347.912.74.3

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 33% of May, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35644
45644
55644
65743
75743
85842
95842
105842
115743
125743
135743
145644
155644
165644
175644
185545
195545
205644
215644
225644
235644
245743
255743
265743
275842
285941
295941
306040
316040

Chance of precipitation in May

Any precipitation

Rio Real gets around 77 mm of rain over 18.4 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 59% and peaks near 62% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
158
258
357
458
558
658
758
858
958
1058
1159
1259
1359
1459
1559
1660
1760
1860
1960
2060
2160
2260
2360
2460
2560
2661
2761
2861
2962
3062
3162

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 74% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
101684
201783
301783
401882
501981
601981
702080
802179
902278
1002377
1102476
1202476
1302575
1402674
1502674
1602773
1702773
1802872
1902872
2002872
2102971
2202971
2302971
2403070
2503070
2603169
2703268
2803367
2903466
3003565
3113663

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 36 min at the start of May to 11 h 24 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 5:41 AM to 5:48 AM, and sunset from 5:17 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:415:17
211.65:415:16
311.65:415:16
411.65:415:16
511.65:425:15
611.65:425:15
711.55:425:15
811.55:425:14
911.55:425:14
1011.55:425:14
1111.55:435:13
1211.55:435:13
1311.55:435:13
1411.55:435:13
1511.55:445:12
1611.55:445:12
1711.55:445:12
1811.55:445:12
1911.55:445:12
2011.45:455:11
2111.45:455:11
2211.45:455:11
2311.45:455:11
2411.45:465:11
2511.45:465:11
2611.45:465:11
2711.45:475:11
2811.45:475:11
2911.45:475:11
3011.45:475:11
3111.45:485:11

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.01 kWh/m².

For context, solar energy here swings from a low near 3.66 kWh/m² to a high of 6.12 kWh/m² in December across the year — May's 4.01 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.3Bright
34.3Bright
44.3Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.0Bright
144.0Bright
154.0Bright
164.0Moderate
174.0Moderate
184.0Moderate
194.0Moderate
203.9Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.8Moderate
313.8Moderate
Planning a trip in May

Is May a good time to visit Rio Real?

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

4.6
Sightseeing
6th-best month of the year
5.7
Beach & pool
10th-best month of the year

May is a reasonable time to visit Rio Real for sightseeing.

What to pack for Rio Real in May

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

In May, Rio Real sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 18 days see rain.

light clothesrain gear

Sea temperature near Rio Real in May

The nearest coast averages about 28°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 62 km away) is warmest in April at about 28°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar28Tropical
Apr28Tropical
May28Warm
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct26Warm
Nov26Warm
Dec27Warm

UV index in Rio Real 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 Rio Real peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 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 highExtremeFeb 17UV 15Jul 10UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Rio Real?

Rio Real sits at 11.5°S, 37.9°W, 170 m above sea level, in Brazil. The nearest listed city is Cristinápolis, 19 km away.

Topography around Rio Real

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

Within 3 km, the terrain around Rio Real has only modest variations in elevation — a maximum elevation change of 59 m around an average of 175 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 243 m; within 80 km, large variations in elevation — a maximum elevation change of 617 m.

The land around Rio Real is covered by grassland (59%) within 3 km, grassland (71%) within 16 km, and grassland (52%) and trees (24%) within 80 km.

3 km
59 m
16 km
243 m
80 km
617 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
May weather nearby: Cristinápolis 19 km · Crisópolis 24 km · Aporá 25 km · Itabaianinha 28 km · Umbaúba 32 km · Tobias Barreto 34 km · Esplanada 35 km · Itapicuru 38 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 Rio Real (-11.4847°, -37.9328°, elevation 170 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).