Aripuanã weather in January

In January, Aripuanã sees average daytime highs of 29°C and overnight lows near 22°C, with 322 mm of rain across 29.3 wet days and about 12.5 hours of daylight. It is the 12th-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 1% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of January to 12 h 24 min by month's end. Set against the rest of the year, January is Aripuanã's 11th-clearest and 6th-windiest month. For the whole year in context, see Aripuanã's year-round climate.

Daytime high
29°
12th warmest
Overnight low
22°
8th coldest
Rainfall
322 mm
29.3 wet days
Daylight
12 h 30 min
6:51 AM – 7:23 PM
Cloud cover
88%
11th clearest
Wind
5 km/h
6th windiest
Solar energy
4.48 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 Aripuanã 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 26°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 Aripuanã

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.

Aripuanã weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°32229.312.52.9
Feb29° / 22°29726.412.32.9
Mar29° / 22°28129.212.12.9
Apr30° / 22°1852511.83.2
May30° / 22°7312.911.54.6
Jun31° / 21°14311.45.2
Jul33° / 21°71.411.54.6
Aug34° / 22°173.311.73.5
Sep33° / 23°8112.611.93.2
Oct32° / 23°18022.612.23.0
Nov30° / 22°22725.312.53.0
Dec29° / 22°30028.112.63.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 5% of January, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1793
2694
3595
4595
5595
6595
7595
8595
9595
10694
11694
12694
13694
14694
15694
16793
17793
18793
19793
20793
21793
22793
23793
24793
25793
26793
27793
28793
29694
30694
31694

Chance of precipitation in January

Any precipitation

Aripuanã gets around 322 mm of rain over 29.3 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 94% and peaks near 95% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
195
295
395
495
595
695
795
895
995
1095
1194
1294
1394
1493
1593
1693
1793
1893
1993
2093
2193
2293
2393
2493
2594
2694
2794
2894
2994
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 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1982
2982
3973
4973
5973
6973
7973
8973
9973
10973
11973
12973
13973
14973
15973
16973
17973
18973
19973
20973
21973
22973
23973
24973
25973
26973
27973
28973
29973
30973
31973

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 5 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
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 36 min at the start of January to 12 h 24 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 6:43 AM to 6:58 AM, and sunset from 7:19 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:437:19
212.66:447:19
312.66:447:19
412.66:457:20
512.66:457:20
612.66:467:20
712.66:467:21
812.66:477:21
912.66:487:21
1012.66:487:22
1112.66:497:22
1212.66:497:22
1312.56:507:22
1412.56:507:23
1512.56:517:23
1612.56:517:23
1712.56:527:23
1812.56:527:24
1912.56:527:24
2012.56:537:24
2112.56:537:24
2212.56:547:24
2312.56:547:24
2412.56:557:24
2512.56:557:24
2612.56:567:24
2712.56:567:25
2812.56:567:25
2912.56:577:25
3012.56:577:25
3112.46:587:25

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.48 kWh/m².

For context, solar energy here swings from a low near 4.45 kWh/m² to a high of 5.57 kWh/m² in September across the year — January's 4.48 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in January

Hazard calendar for Aripuanã

In seasonPeak

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

Aripuanã'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 Aripuanã?

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

2.9
Sightseeing
10th-best month of the year
3.8
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Aripuanã.

What to pack for Aripuanã in January

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

In January, Aripuanã sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Aripuanã in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Aripuanã peaks around February 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 14 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeFeb 16UV 15Sep 14UV 5
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep4Moderate
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Aripuanã 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 Aripuanã is worst in September — around 89 µg/m³ PM2.5 (unhealthy), about 14.4× the cleanest month (July, 6 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecGoodUnhealthyModerateSep 1583 µg/m³Jul 107 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr9Good
May8Good
Jun8Good
Jul6Good
Aug41Poor
Sep89Unhealthy
Oct26Moderate
Nov17Moderate
Dec12Moderate
Location & terrain

Where is Aripuanã?

Aripuanã sits at 10.2°S, 59.4°W, 191 m above sea level, in Brazil. The nearest listed city is Colniza, 97 km away.

Pimenta BuenoCacoalBrasnorteJi Paraná

Topography around Aripuanã

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

Within 3 km, the terrain around Aripuanã has only modest variations in elevation — a maximum elevation change of 193 m around an average of 231 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 284 m; within 80 km, significant variations in elevation — a maximum elevation change of 449 m.

The land around Aripuanã is covered by trees (53%) and grassland (29%) within 3 km, trees (65%) and grassland (32%) within 16 km, and trees (81%) within 80 km.

3 km
193 m
16 km
284 m
80 km
449 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Colniza 97 km · Juína 158 km · Espigão dOeste 227 km · Juara 243 km · Pimenta Bueno 253 km · Cacoal 259 km · Brasnorte 268 km · Ji Paraná 285 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 Aripuanã (-10.1765°, -59.4491°, elevation 191 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).