Itanhém weather in January

In January, Itanhém sees average daytime highs of 31°C and overnight lows near 21°C, with 81 mm of rain across 11.5 wet days and about 12.9 hours of daylight. It is the 2nd-warmest and 4th-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 25% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 hours at the start of January to 12 h 48 min by month's end. Set against the rest of the year, January is Itanhém's 10th-clearest and 4th-windiest month. For the whole year in context, see Itanhém's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
21°
10th coldest
Rainfall
81 mm
11.5 wet days
Daylight
12 h 54 min
5:23 AM – 6:18 PM
Cloud cover
64%
10th clearest
Wind
10 km/h
4th windiest
Solar energy
6.26 kWh/m²
Travel score
4.1
out of 10

Itanhém is 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 Itanhém reaches about 31°C in the afternoon and slips back to 21°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63121
73121
83121
93121
103121
113121
123121
133121
143121
153121
163121
173121
183121
193121
203121
213121
223121
233121
243221
253221
263221
273221
283221
293221
303221
313221

How January really feels in Itanhém

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.

Itanhém weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 21°8111.512.94.1
Feb32° / 22°599.312.64.0
Mar31° / 21°11115.412.13.9
Apr30° / 20°7313.811.64.7
May28° / 19°4010.111.26.1
Jun27° / 17°308.9116.7
Jul26° / 17°319.411.16.8
Aug27° / 16°257.511.46.9
Sep28° / 18°306.711.96.3
Oct29° / 19°779.812.45.2
Nov29° / 20°13914.712.84.5
Dec31° / 21°13313.9134.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
43961
53961
64060
74060
84159
94159
104159
114357
124456
134456
144555
154555
164654
174753
184753
194753
204753
214753
224753
234852
244852
254852
264852
274753
284753
294852
304852
314852

Chance of precipitation in January

Any precipitation

Itanhém gets around 81 mm of rain over 11.5 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 38% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
439
539
639
739
839
939
1039
1139
1239
1339
1439
1539
1639
1739
1839
1938
2038
2138
2237
2337
2437
2536
2636
2736
2836
2936
3036
3135

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 60% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
136433
236334
336334
436334
536235
636235
736136
836136
936136
1036037
1136037
1226038
1326038
1426038
1525939
1625840
1725840
1815841
1915841
2015841
2115841
2215841
2315841
2415841
2515841
2615841
2715940
2815940
2915940
3016039
3125939

Wind in January

Winds average 10 km/h in January.

Across January, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 hours at the start of January to 12 h 48 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 5:14 AM to 5:31 AM, and sunset from 6:15 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:146:15
213.05:156:15
313.05:156:15
413.05:166:16
513.05:166:16
613.05:176:16
713.05:186:17
813.05:186:17
913.05:196:17
1013.05:196:17
1113.05:206:18
1213.05:216:18
1312.95:216:18
1412.95:226:18
1512.95:226:18
1612.95:236:18
1712.95:246:18
1812.95:246:18
1912.95:256:19
2012.95:256:19
2112.95:266:19
2212.95:266:19
2312.95:276:19
2412.85:286:19
2512.85:286:19
2612.85:296:18
2712.85:296:18
2812.85:306:18
2912.85:306:18
3012.85:316:18
3112.85:316:18

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.26 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.45 kWh/m² to a high of 6.26 kWh/m² in January across the year — January's 6.26 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in January

Hazard calendar for Itanhém

In seasonPeak

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

Itanhém's rainy season runs March–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Itanhém?

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

4.1
Sightseeing
10th-best month of the year
6.2
Beach & pool
9th-best month of the year

January is a reasonable time to visit Itanhém for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Itanhém in January

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

In January, Itanhém sees daytime highs around 31°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Itanhém 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 Itanhém peaks around February 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 15UV 15Jun 21UV 7
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep11Extreme
Oct12Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Itanhém?

Itanhém sits at 17.2°S, 40.3°W, 189 m above sea level, in Brazil. The nearest listed city is Medeiros Neto, 26 km away.

Topography around Itanhém

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

Within 3 km, the terrain around Itanhém has only modest variations in elevation — a maximum elevation change of 201 m around an average of 212 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 623 m; within 80 km, large variations in elevation — a maximum elevation change of 1,163 m.

The land around Itanhém is covered by grassland (90%) within 3 km, grassland (85%) within 16 km, and grassland (75%) and trees (24%) within 80 km.

3 km
201 m
16 km
623 m
80 km
1,163 m
treesgrasslandcroplandartificial surfaces
January weather nearby: Medeiros Neto 26 km · Águas Formosas 65 km · Teixeira de Freitas 75 km · Nanuque 75 km · Carlos Chagas 76 km · Itamaraju 86 km · Guaratinga 87 km · Posto da Mata 94 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 Itanhém (-17.1664°, -40.33°, elevation 189 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).