Juína weather in January

In January, Juína sees average daytime highs of 29°C and overnight lows near 22°C, with 302 mm of rain across 28.9 wet days and about 12.6 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 2% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 h 42 min at the start of January to 12 h 30 min by month's end. Set against the rest of the year, January is Juína's 11th-clearest and 6th-windiest month. For the whole year in context, see Juína's year-round climate.

Daytime high
29°
11th warmest
Overnight low
22°
8th coldest
Rainfall
302 mm
28.9 wet days
Daylight
12 h 36 min
6:46 AM – 7:22 PM
Cloud cover
87%
11th clearest
Wind
5 km/h
6th windiest
Solar energy
4.65 kWh/m²
Travel score
2.9
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical January day in Juína reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°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)
12922
22922
32922
42922
52922
62922
72922
82922
92922
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922
312922

How January really feels in Juína

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.

Juína weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°30228.912.62.9
Feb29° / 22°28626.912.42.9
Mar29° / 22°26228.712.12.9
Apr30° / 22°1432211.83.6
May30° / 21°5410.511.55.0
Jun30° / 20°112.311.35.9
Jul31° / 19°4111.45.6
Aug33° / 20°122.311.64.4
Sep33° / 22°6711.111.93.5
Oct32° / 22°16421.812.33.0
Nov30° / 22°24926.212.52.9
Dec29° / 22°29128.412.72.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 7% of January, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
121090
131090
141090
151090
161090
171090
181090
191090
201090
211090
221090
231090
241090
25991
26991
27892
28991
29991
30991
31991

Chance of precipitation in January

Any precipitation

Juína gets around 302 mm of rain over 28.9 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 93% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
194
294
394
494
594
694
794
894
994
1094
1194
1293
1393
1493
1593
1693
1792
1892
1992
2092
2192
2292
2392
2492
2593
2693
2793
2893
2993
3094
3194

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 99% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11990
21990
31990
401000
501000
601000
701000
801000
901000
1001000
1101000
1201000
1301000
1401000
1501000
1601000
1701000
1801000
1901000
2001000
2101000
2201000
2301000
2401000
250991
260991
270991
280991
290991
300982
310982

Wind in January

Winds average 5 km/h in January.

Across January, 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 42 min at the start of January to 12 h 30 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 6:38 AM to 6:53 AM, and sunset from 7:18 PM to 7:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:387:18
212.76:397:18
312.76:397:19
412.76:407:19
512.66:417:19
612.66:417:20
712.66:427:20
812.66:427:20
912.66:437:21
1012.66:437:21
1112.66:447:21
1212.66:447:21
1312.66:457:22
1412.66:457:22
1512.66:467:22
1612.66:467:22
1712.66:477:23
1812.66:477:23
1912.66:487:23
2012.66:487:23
2112.66:497:23
2212.66:497:23
2312.66:507:23
2412.66:507:23
2512.56:517:23
2612.56:517:24
2712.56:527:24
2812.56:527:24
2912.56:527:24
3012.56:537:24
3112.56:537:23

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.65 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 5.67 kWh/m² in September across the year — January's 4.65 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in January

Hazard calendar for Juína

In seasonPeak

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

Juína's monsoon runs October–April, 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 Juína?

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

2.9
Sightseeing
8th-best month of the year
3.9
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Juína.

What to pack for Juína in January

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

In January, Juína sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

UV index in Juína 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 Juína peaks around January 23 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 15 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 23UV 15Sep 15UV 4
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep3Moderate
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Juína 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 Juína is worst in September — around 58 µg/m³ PM2.5 (unhealthy), about 6.8× the cleanest month (July, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateSep 1554 µg/m³Apr 219 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr9Good
May9Good
Jun11Good
Jul9Good
Aug29Moderate
Sep58Unhealthy
Oct23Moderate
Nov16Moderate
Dec12Moderate
Location & terrain

Where is Juína?

Juína sits at 11.4°S, 58.8°W, 353 m above sea level, in Brazil. The nearest listed city is Brasnorte, 113 km away.

Espigão dOestePimenta Bueno

Topography around Juína

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

Within 3 km, the terrain around Juína has only modest variations in elevation — a maximum elevation change of 68 m around an average of 340 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 228 m; within 80 km, significant variations in elevation — a maximum elevation change of 321 m.

The land around Juína is covered by grassland (49%), artificial surfaces (28%) and trees (20%) within 3 km, grassland (63%) and trees (34%) within 16 km, and trees (66%) and grassland (29%) within 80 km.

3 km
68 m
16 km
228 m
80 km
321 m
treesgrasslandcroplandartificial surfaces
January weather nearby: Brasnorte 113 km · Juara 136 km · Aripuanã 158 km · Vilhena 211 km · Colniza 226 km · Sapezal 236 km · Espigão dOeste 246 km · Pimenta Bueno 267 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 Juína (-11.4205°, -58.7549°, elevation 353 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).