Cuiabá weather in January

In January, Cuiabá sees average daytime highs of 31°C and overnight lows near 23°C, with 248 mm of rain across 25.7 wet days and about 12.8 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 5% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 h 54 min at the start of January to 12 h 42 min by month's end. Set against the rest of the year, January is Cuiabá's 12th-clearest and 8th-windiest month. For the whole year in context, see Cuiabá's year-round climate.

Daytime high
31°
8th warmest
Overnight low
23°
12th coldest
Rainfall
248 mm
25.7 wet days
Daylight
12 h 48 min
6:29 AM – 7:19 PM
Cloud cover
80%
12th clearest
Wind
7 km/h
8th windiest
Solar energy
5.41 kWh/m²
Travel score
2.8
out of 10

Cuiabá is human settlement in Brazil.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical January day in Cuiabá reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243123
253123
263123
273123
283123
293123
303123
313123

How January really feels in Cuiabá

Once humidity and wind are folded in, January 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Cuiabá weather by month

How January compares with the rest of the year at a glance. January 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
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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12179
22179
32179
42080
52080
62080
71981
81981
91981
102080
112080
121981
131981
141981
151981
161981
172080
182179
192179
202179
212179
222179
232179
242179
252179
262179
272179
282179
292179
302179
312179

Chance of precipitation in January

Any precipitation

Cuiabá gets around 248 mm of rain over 25.7 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 83% and peaks near 85% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
182
282
382
483
583
683
784
884
984
1084
1184
1284
1384
1484
1584
1683
1783
1883
1983
2082
2182
2282
2382
2482
2582
2683
2783
2883
2984
3084
3185

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 89% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11918
21918
31918
41918
51909
61909
71909
81909
91909
101909
111909
121909
1318910
1418910
1518910
1618910
1718811
1818811
1918811
2018811
2118811
2218712
2318712
2418712
2518712
2618712
2718613
2818613
2918613
3018613
3118613

Wind in January

Winds average 7 km/h in January.

Across January, 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 January

DaylightNight

Daylight runs from about 12 h 54 min at the start of January to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over January. Sunrise moves from 6:20 AM to 6:37 AM, and sunset from 7:15 PM to 7:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:207:15
212.96:217:15
312.96:217:16
412.96:227:16
512.96:227:16
612.96:237:17
712.96:247:17
812.96:247:17
912.96:257:17
1012.96:257:18
1112.96:267:18
1212.96:267:18
1312.96:277:18
1412.86:287:18
1512.86:287:19
1612.86:297:19
1712.86:297:19
1812.86:307:19
1912.86:307:19
2012.86:317:19
2112.86:317:19
2212.86:327:19
2312.86:337:19
2412.86:337:19
2512.86:347:19
2612.76:347:19
2712.76:357:19
2812.76:357:19
2912.76:367:19
3012.76:367:19
3112.76:377:19

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.41 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 — January's 5.41 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in January

Hazard calendar for Cuiabá

In seasonPeak

In January, Cuiabá sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

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 January a good time to visit Cuiabá?

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

2.8
Sightseeing
8th-best month of the year
4.1
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Cuiabá.

What to pack for Cuiabá in January

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

In January, Cuiabá sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

UV index in Cuiabá in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 15 (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 January

GoodModeratePoorUnhealthyVery unhealthy

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