Cuiabá weather in August

In August, Cuiabá sees average daytime highs of 33°C and overnight lows near 20°C, with 11 mm of rain across 1.9 wet days and about 11.5 hours of daylight. It is the 3rd-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 32°C in the first days to 33°C by the end. The sky is clear or mostly clear about 73% of the time in August, and the air most often feels humid.

Daylight stretches from about 11 h 18 min at the start of August to 11 h 42 min by month's end. Set against the rest of the year, August is Cuiabá's 2nd-clearest and 1st-windiest month. For the whole year in context, see Cuiabá's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
20°
3rd coldest
Rainfall
11 mm
1.9 wet days
Daylight
11 h 30 min
7:04 AM – 6:33 PM
Cloud cover
28%
2nd clearest
Wind
8 km/h
1st windiest
Solar energy
5.39 kWh/m²
Travel score
4.7
out of 10

Cuiabá is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 32°C in the first days to 33°C by the end.

A typical August day in Cuiabá reaches about 33°C in the afternoon and slips back to 20°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 36°C. Set against its neighbours, August runs about 2°C warmer than July and about 1°C cooler than September.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13219
23219
33219
43219
53219
63219
73219
83219
93219
103219
113319
123319
133320
143320
153320
163320
173320
183320
193320
203320
213320
223320
233320
243320
253321
263321
273321
283321
293321
303321
313421

How August really feels in Cuiabá

Once humidity and wind are folded in, August averages 27 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
27
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Cuiabá weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 11th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 73% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 11% of August, with mostly cloudy or overcast conditions the remaining 16%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28416
38317
48317
58317
68317
78317
88317
98317
108317
118317
128317
138416
148416
158416
168416
178416
188416
198515
208515
218515
228515
238515
248515
258515
268515
278515
288515
298515
308416
318317

Chance of precipitation in August

Any precipitation

Cuiabá gets around 11 mm of rain over 1.9 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 11% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
12
22
32
42
52
62
73
83
93
104
114
125
135
145
156
166
177
187
197
208
218
228
239
249
259
2610
2710
2810
2911
3011
3111

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1113836131
2113836131
3113836131
4113836132
5123835132
6123835132
7133835123
8133734123
9133734123
10133734124
11143633124
12143633125
13143633125
14143533135
15143533136
16143433136
17143334146
18133234156
19133134166
20133035176
21122835186
22122736196
23112636206
24112536216
25102437226
26102337236
27102337247
28102237257
29102136267
30102136267
3192035278

Wind in August

Winds average 8 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 18 min at the start of August to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over August. Sunrise moves from 7:12 AM to 6:54 AM, and sunset from 6:29 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.37:126:29
211.37:116:30
311.37:116:30
411.37:106:30
511.37:106:30
611.47:096:31
711.47:096:31
811.47:096:31
911.47:086:31
1011.47:086:32
1111.47:076:32
1211.47:076:32
1311.47:066:32
1411.47:056:32
1511.57:056:33
1611.57:046:33
1711.57:046:33
1811.57:036:33
1911.57:026:33
2011.57:026:33
2111.57:016:34
2211.67:006:34
2311.67:006:34
2411.66:596:34
2511.66:586:34
2611.66:586:34
2711.66:576:34
2811.66:566:34
2911.66:566:35
3011.76:556:35
3111.76:546:35

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.39 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 — August's 5.39 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in August

Hazard calendar for Cuiabá

In seasonPeak

None of Cuiabá's seasonal hazards are active in August. 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 August a good time to visit Cuiabá?

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

4.7
Sightseeing
4th-best month of the year
7.9
Beach & pool
3rd-best month of the year

August 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 August

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

In August, Cuiabá sees daytime highs around 33°C and nights near 20°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Cuiabá in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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
August 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).