Cuiabá weather in May

In May, Cuiabá sees average daytime highs of 30°C and overnight lows near 20°C, with 35 mm of rain across 5.5 wet days and about 11.3 hours of daylight. It is the 11th-warmest and 9th-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 46% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of May to 11 h 06 min by month's end. Set against the rest of the year, May is Cuiabá's 5th-clearest and 6th-windiest month. For the whole year in context, see Cuiabá's year-round climate.

Daytime high
30°
11th warmest
Overnight low
20°
4th coldest
Rainfall
35 mm
5.5 wet days
Daylight
11 h 18 min
7:02 AM – 6:19 PM
Cloud cover
49%
5th clearest
Wind
7 km/h
6th windiest
Solar energy
4.63 kWh/m²
Travel score
5.4
out of 10

Cuiabá 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 30°C through the month.

A typical May day in Cuiabá reaches about 30°C in the afternoon and slips back to 20°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 34°C. Set against its neighbours, May runs about 1°C cooler than April and on par with June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63121
73121
83121
93121
103021
113021
123021
133021
143021
153020
163020
173020
183020
193020
203020
213020
223020
233020
243020
253020
263020
273020
283020
293020
303020
313020

How May really feels in Cuiabá

Once humidity and wind are folded in, May averages 15 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
15
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.

Cuiabá weather by month

How May compares with the rest of the year at a glance. May is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°24825.712.82.8
Feb31° / 23°21824.312.52.7
Mar31° / 23°20825.212.12.8
Apr31° / 22°10015.111.73.9
May30° / 20°355.511.35.4
Jun30° / 19°111.311.16.1
Jul31° / 18°60.811.26.2
Aug33° / 20°111.911.54.7
Sep34° / 22°477.211.93.4
Oct33° / 23°13217.412.42.8
Nov32° / 23°1792112.72.9
Dec31° / 23°21525.312.92.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36337
46238
56238
66139
76139
86040
95941
105941
115842
125842
135842
145743
155743
165842
175842
185842
195941
205941
216040
226139
236238
246337
256337
266436
276535
286634
296733
306733
316931

Chance of precipitation in May

Any precipitation

Cuiabá gets around 35 mm of rain over 5.5 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 18% and peaks near 25% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
125
223
323
422
521
621
721
820
920
1020
1120
1220
1320
1420
1520
1619
1719
1819
1919
2018
2118
2217
2317
2416
2515
2615
2714
2813
2912
3012
3111

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 38% of days. Sticky, muggy-or-worse air turns up on roughly 76% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
114926564
215927544
3151028533
4151129513
5151129513
6151230493
7151232482
8151332462
9251333452
10251433442
11251434432
12251535421
13251535411
14251636401
15251637391
16251737381
17251738370
18261739360
19261839350
20261840340
21271940330
22271941320
23271942300
24272042290
25282043280
26282143260
27282144250
28282245240
29282345230
30282445210
31282546200

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 24 min at the start of May to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over May. Sunrise moves from 6:58 AM to 7:07 AM, and sunset from 6:25 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:586:25
211.46:586:25
311.46:596:24
411.46:596:24
511.46:596:23
611.46:596:23
711.47:006:22
811.47:006:22
911.47:006:21
1011.37:016:21
1111.37:016:21
1211.37:016:20
1311.37:016:20
1411.37:026:20
1511.37:026:19
1611.37:026:19
1711.37:036:19
1811.37:036:18
1911.27:036:18
2011.27:046:18
2111.27:046:18
2211.27:046:17
2311.27:056:17
2411.27:056:17
2511.27:056:17
2611.27:066:17
2711.27:066:17
2811.27:066:17
2911.27:076:16
3011.27:076:16
3111.17:076:16

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.63 kWh/m².

For context, solar energy here swings from a low near 4.45 kWh/m² to a high of 6.05 kWh/m² in October across the year — May's 4.63 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in May

Hazard calendar for Cuiabá

In seasonPeak

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

Cuiabá's monsoon runs October–March, 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 Cuiabá?

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

5.4
Sightseeing
3rd-best month of the year
7.6
Beach & pool
4th-best month of the year

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

What to pack for Cuiabá in May

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

In May, Cuiabá sees daytime highs around 30°C and nights near 20°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Cuiabá in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cuiabá peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 14 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 21UV 15Sep 14UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep7High
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Cuiabá 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 Cuiabá is worst in September — around 70 µg/m³ PM2.5 (unhealthy), about 6.6× the cleanest month (January, 11 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyModerateSep 1566 µg/m³Apr 1611 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar11Good
Apr11Good
May11Good
Jun11Good
Jul14Moderate
Aug39Poor
Sep70Unhealthy
Oct23Moderate
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Cuiabá?

Cuiabá sits at 15.6°S, 56.1°W, 193 m above sea level, in Brazil. The nearest listed city is Várzea Grande, 7.0 km away.

Topography around Cuiabá

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

Within 3 km, the terrain around Cuiabá has only modest variations in elevation — a maximum elevation change of 90 m around an average of 179 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 134 m; within 80 km, large variations in elevation — a maximum elevation change of 795 m.

The land around Cuiabá is covered by artificial surfaces (77%) within 3 km, grassland (37%), trees (34%) and artificial surfaces (21%) within 16 km, and trees (44%) and grassland (39%) within 80 km.

3 km
90 m
16 km
134 m
80 km
795 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Várzea Grande 7.0 km · Santo Antônio do Leverger 30 km · Chapada dos Guimarães 40 km · Lucas 84 km · Rosário Oeste 92 km · Poconé 93 km · Campo Verde 100 km · Nobres 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 Cuiabá (-15.5961°, -56.0967°, elevation 193 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).