Major Isidoro weather in May

In May, Major Isidoro sees average daytime highs of 29°C and overnight lows near 22°C, with 60 mm of rain across 14.1 wet days and about 11.6 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 28°C by the end. The sky is clear or mostly clear about 22% of the time in May, and the air most often feels oppressive.

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 Major Isidoro's 11th-clearest and 12th-windiest month. For the whole year in context, see Major Isidoro's year-round climate.

Daytime high
29°
8th warmest
Overnight low
22°
6th coldest
Rainfall
60 mm
14.1 wet days
Daylight
11 h 36 min
5:37 AM – 5:11 PM
Cloud cover
59%
11th clearest
Wind
11 km/h
12th windiest
Solar energy
4.28 kWh/m²
Travel score
4.9
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 28°C by the end.

A typical May day in Major Isidoro reaches about 29°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282921
292921
302821
312821

How May really feels in Major Isidoro

Once humidity and wind are folded in, May averages 13 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
13
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.

Major Isidoro 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
Jan33° / 23°346.312.53.7
Feb33° / 23°347.112.33.7
Mar33° / 23°449.412.13.7
Apr31° / 23°5311.211.84.1
May29° / 22°6014.111.64.9
Jun27° / 21°5415.811.55.5
Jul27° / 20°5116.511.55.7
Aug27° / 20°3513.311.76.0
Sep29° / 20°228.411.95.7
Oct32° / 21°163.812.24.9
Nov33° / 22°222.812.44.2
Dec33° / 23°163.712.53.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 31% of May, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35050
45149
55050
65149
75149
85248
95347
105347
115347
125347
135446
145446
155446
165347
175347
185446
195446
205446
215446
225446
235446
245446
255545
265446
275545
285545
295644
305644
315743

Chance of precipitation in May

Any precipitation

Major Isidoro gets around 60 mm of rain over 14.1 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 45% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
245
346
446
546
645
745
845
945
1044
1144
1244
1344
1444
1544
1644
1744
1844
1945
2045
2145
2245
2346
2446
2546
2647
2747
2847
2948
3048
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 51% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
114158
214158
314158
414158
514257
614356
714356
814455
914554
1014653
1114653
1214752
1314752
1414851
1514851
1614851
1714851
1814851
1914950
2014950
2115049
2215049
2315148
2415247
2515247
2615445
2715544
2815643
2915841
3016039
3116237

Wind in May

Winds average 11 km/h in May, the calmest month.

Across May, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 5:35 AM to 5:41 AM, and sunset from 5:15 PM to 5:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:355:15
211.75:355:15
311.75:355:14
411.65:355:14
511.65:365:14
611.65:365:14
711.65:365:13
811.65:365:13
911.65:365:13
1011.65:365:12
1111.65:365:12
1211.65:375:12
1311.65:375:12
1411.65:375:12
1511.65:375:11
1611.65:375:11
1711.65:375:11
1811.65:385:11
1911.55:385:11
2011.55:385:11
2111.55:385:10
2211.55:385:10
2311.55:395:10
2411.55:395:10
2511.55:395:10
2611.55:395:10
2711.55:405:10
2811.55:405:10
2911.55:405:10
3011.55:405:10
3111.55:415:10

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.28 kWh/m².

For context, solar energy here swings from a low near 3.8 kWh/m² to a high of 6.5 kWh/m² in November across the year — May's 4.28 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.0Bright
304.0Bright
314.0Bright
Planning a trip in May

Is May a good time to visit Major Isidoro?

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

4.9
Sightseeing
5th-best month of the year
6.3
Beach & pool
8th-best month of the year

May is a reasonable time to visit Major Isidoro for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Major Isidoro in May

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

In May, Major Isidoro sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 14 days see rain.

light clothesrain gear

UV index in Major Isidoro 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 Major Isidoro 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
May11Extreme
Jun10Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Major Isidoro?

Major Isidoro sits at 9.5°S, 37.0°W, 191 m above sea level, in Brazil. The nearest listed city is Batalha, 22 km away.

Topography around Major Isidoro

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

Within 3 km, the terrain around Major Isidoro has only modest variations in elevation — a maximum elevation change of 55 m around an average of 204 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 333 m; within 80 km, large variations in elevation — a maximum elevation change of 1,082 m.

The land around Major Isidoro is covered by grassland (72%) within 3 km, grassland (69%) and shrubs (21%) within 16 km, and grassland (72%) within 80 km.

3 km
55 m
16 km
333 m
80 km
1,082 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Batalha 22 km · Craíbas 26 km · Estrela de Alagoas 29 km · Santana do Ipanema 33 km · Olho d'Água das Flores 34 km · Igaci 39 km · Girau do Ponciano 43 km · Lagoa da Canoa 43 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 Major Isidoro (-9.5322°, -36.985°, elevation 191 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).