Coari weather in January

In January, Coari sees average daytime highs of 30°C and overnight lows near 25°C, with 285 mm of rain across 28 wet days and about 12.2 hours of daylight. It is the 7th-warmest and 4th-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 1% of the time in January, and the air most often feels miserable.

Daylight stretches from about 12 h 12 min at the start of January to 12 h 12 min by month's end. Set against the rest of the year, January is Coari's 9th-clearest and 3rd-windiest month. For the whole year in context, see Coari's year-round climate.

Daytime high
30°
7th warmest
Overnight low
25°
8th coldest
Rainfall
285 mm
28 wet days
Daylight
12 h 12 min
6:15 AM – 6:28 PM
Cloud cover
88%
9th clearest
Wind
5 km/h
3rd windiest
Solar energy
4.47 kWh/m²
Travel score
2.8
out of 10

Coari 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 30°C through the month.

A typical January day in Coari reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°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)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025
313025

How January really feels in Coari

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.

Coari weather by month

How January compares with the rest of the year at a glance. January is the 7th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°2852812.22.8
Feb30° / 25°27525.212.12.8
Mar30° / 25°33428.7122.7
Apr30° / 25°33528.611.92.7
May30° / 24°29729.111.82.8
Jun30° / 24°16725.311.83.2
Jul30° / 24°10120.511.83.8
Aug31° / 25°9618.611.93.6
Sep32° / 25°12321.5123.0
Oct31° / 25°16324.712.12.8
Nov31° / 25°21125.712.22.7
Dec30° / 25°2562912.22.6

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 4% of January, with mostly cloudy or overcast conditions the remaining 95%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1595
2595
3595
4595
5595
6595
7595
8595
9595
10595
11694
12694
13694
14694
15694
16694
17694
18595
19595
20595
21694
22694
23694
24595
25595
26595
27595
28595
29595
30595
31595

Chance of precipitation in January

Any precipitation

Coari gets around 285 mm of rain over 28 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 90% and peaks near 92% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
192
292
391
491
591
691
791
892
992
1092
1192
1292
1392
1492
1592
1691
1791
1891
1990
2090
2189
2289
2389
2488
2588
2688
2788
2888
2988
3088
3188

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the miserable band about 74% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
12179
22179
32278
42377
52476
62575
72575
82674
92773
102872
112971
122971
132971
143070
152971
162971
172971
182872
192872
202773
212674
222674
232575
242575
252476
262476
272377
282377
292377
302377
312377

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 12 min at the start of January to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over January. Sunrise moves from 6:09 AM to 6:21 AM, and sunset from 6:23 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:096:23
212.26:096:23
312.26:106:24
412.26:106:24
512.26:116:24
612.26:116:25
712.26:126:25
812.26:126:26
912.26:126:26
1012.26:136:26
1112.26:136:27
1212.26:146:27
1312.26:146:27
1412.26:156:28
1512.26:156:28
1612.26:156:28
1712.26:166:29
1812.26:166:29
1912.26:176:29
2012.26:176:29
2112.26:176:30
2212.26:186:30
2312.26:186:30
2412.26:186:30
2512.26:196:30
2612.26:196:31
2712.26:196:31
2812.26:206:31
2912.26:206:31
3012.26:206:31
3112.26:216:31

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.47 kWh/m².

For context, solar energy here swings from a low near 3.75 kWh/m² to a high of 5.28 kWh/m² in October across the year — January's 4.47 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
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

Is January a good time to visit Coari?

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

2.8
Sightseeing
5th-best month of the year
3.9
Beach & pool
8th-best month of the year

January is a weaker month for outdoor sightseeing in Coari.

What to pack for Coari in January

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

In January, Coari sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

UV index in Coari 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 Coari peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeExtremeMar 14UV 15Jul 13UV 10
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Very high
Aug11Extreme
Sep10Very high
Oct11Extreme
Nov12Extreme
Dec12Extreme

Air quality in Coari 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 Coari is worst in September — around 25 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (June, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateSep 1224 µg/m³Jun 1111 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar16Moderate
Apr14Moderate
May11Good
Jun11Good
Jul12Moderate
Aug23Moderate
Sep25Moderate
Oct21Moderate
Nov19Moderate
Dec17Moderate
Location & terrain

Where is Coari?

Coari sits at 4.1°S, 63.1°W, 42 m above sea level, in Brazil. The nearest listed city is Codajás, 123 km away.

UariniManicoré

Topography around Coari

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

Within 3 km, the terrain around Coari has only modest variations in elevation — a maximum elevation change of 43 m around an average of 30 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 58 m; within 80 km, only modest variations in elevation — a maximum elevation change of 70 m.

The land around Coari is covered by water (46%) and trees (33%) within 3 km, trees (64%) and water (30%) within 16 km, and trees (87%) within 80 km.

3 km
43 m
16 km
58 m
80 km
70 m
treesgrasslandartificial surfacesbare terrainwaterwetland
January weather nearby: Codajás 123 km · Anori 170 km · Tapauá 172 km · Tefé 192 km · Beruri 197 km · Alvarães 208 km · Uarini 250 km · Manicoré 280 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 Coari (-4.085°, -63.1414°, elevation 42 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).