Tucumã weather in May

In May, Tucumã sees average daytime highs of 30°C and overnight lows near 22°C, with 109 mm of rain across 17.2 wet days and about 11.7 hours of daylight. It is the 6th-warmest and 7th-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 18% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of May to 11 h 36 min by month's end. Set against the rest of the year, May is Tucumã's 6th-clearest and 6th-windiest month. For the whole year in context, see Tucumã's year-round climate.

Daytime high
30°
6th warmest
Overnight low
22°
5th coldest
Rainfall
109 mm
17.2 wet days
Daylight
11 h 42 min
6:30 AM – 6:12 PM
Cloud cover
70%
6th clearest
Wind
5 km/h
6th windiest
Solar energy
4.61 kWh/m²
Travel score
3.9
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 Tucumã reaches about 30°C in the afternoon and slips back to 22°C overnight — a 9°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 about 1°C cooler 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
143022
153022
163022
173022
183022
193022
203022
213122
223122
233122
243122
253122
263122
273122
283122
293122
303121
313121

How May really feels in Tucumã

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.

Tucumã weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°26329.312.32.9
Feb29° / 22°2412612.23.0
Mar29° / 22°26528.9122.9
Apr30° / 22°20325.511.93.1
May30° / 22°10917.211.73.9
Jun32° / 21°173.711.64.9
Jul33° / 21°71.711.64.5
Aug34° / 22°101.911.83.9
Sep33° / 23°335.9123.8
Oct32° / 23°9916.112.13.5
Nov30° / 22°16222.312.33.3
Dec30° / 22°2032612.43.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 65%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22080
32278
42278
52476
62476
72575
82773
92872
102971
113169
123169
133367
143466
153565
163664
173664
183763
193862
203961
214060
224159
234258
244258
254357
264456
274654
284852
294951
305149
315347

Chance of precipitation in May

Any precipitation

Tucumã gets around 109 mm of rain over 17.2 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 55% and peaks near 73% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
173
271
370
469
568
666
765
863
962
1060
1159
1258
1357
1456
1555
1654
1754
1853
1952
2051
2151
2250
2348
2447
2546
2644
2742
2840
2938
3036
3134

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 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101972
201972
301972
401981
502971
602971
702971
802971
902971
1002971
1103952
1203952
1303952
1403961
1503961
1604951
1704951
1805941
1905941
2006931
2107921
2208911
23010891
24011881
25012871
26014851
27016831
28018811
29120790
30122770
31125740

Wind in May

Winds average 5 km/h in May.

Across May, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 48 min at the start of May to 11 h 36 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 6:29 AM to 6:33 AM, and sunset from 6:15 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:296:15
211.86:296:15
311.86:296:14
411.86:296:14
511.76:296:14
611.76:296:13
711.76:296:13
811.76:296:13
911.76:296:13
1011.76:296:13
1111.76:296:12
1211.76:306:12
1311.76:306:12
1411.76:306:12
1511.76:306:12
1611.76:306:12
1711.76:306:12
1811.76:306:11
1911.76:316:11
2011.76:316:11
2111.76:316:11
2211.76:316:11
2311.76:316:11
2411.76:316:11
2511.76:326:11
2611.76:326:11
2711.76:326:11
2811.66:326:11
2911.66:326:11
3011.66:336:11
3111.66:336:11

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.61 kWh/m².

For context, solar energy here swings from a low near 4.46 kWh/m² to a high of 6.09 kWh/m² in September across the year — May's 4.61 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in May

Hazard calendar for Tucumã

In seasonPeak

None of Tucumã's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Tucumã's monsoon runs November–April, 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 Tucumã?

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

3.9
Sightseeing
3rd-best month of the year
5.6
Beach & pool
5th-best month of the year

May is a weaker month for outdoor sightseeing in Tucumã.

What to pack for Tucumã in May

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

In May, Tucumã sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Tucumã 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 Tucumã peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 12UV 15Jun 21UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug11Extreme
Sep11Extreme
Oct11Extreme
Nov11Extreme
Dec11Extreme

Air quality in Tucumã in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Tucumã is worst in September — around 55 µg/m³ PM2.5 (poor), about 7.2× the cleanest month (June, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModeratePoorModerateSep 1652 µg/m³Jun 238 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb11Good
Mar11Good
Apr12Moderate
May10Good
Jun8Good
Jul8Good
Aug30Moderate
Sep55Poor
Oct29Moderate
Nov22Moderate
Dec17Moderate
Location & terrain

Where is Tucumã?

Tucumã sits at 6.7°S, 51.2°W, 302 m above sea level, in Brazil. The nearest listed city is Ourilândia do Norte, 9.0 km away.

Topography around Tucumã

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

Within 3 km, the terrain around Tucumã has significant variations in elevation — a maximum elevation change of 324 m around an average of 330 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 383 m; within 80 km, significant variations in elevation — a maximum elevation change of 564 m.

The land around Tucumã is covered by trees (43%), grassland (37%) and artificial surfaces (20%) within 3 km, grassland (58%) and trees (40%) within 16 km, and trees (65%) and grassland (34%) within 80 km.

3 km
324 m
16 km
383 m
80 km
564 m
treesgrasslandartificial surfacesbare terrain
May weather nearby: Ourilândia do Norte 9.0 km · Água Azul do Norte 77 km · São Félix do Xingu 93 km · Rio Maria 138 km · Xinguara 140 km · Canaã dos Carajás 147 km · Parauapebas 158 km · Floresta do Araguaia 183 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 Tucumã (-6.7475°, -51.1611°, elevation 302 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).