Itajubá weather in January

In January, Itajubá sees average daytime highs of 25°C and overnight lows near 17°C, with 362 mm of rain across 25.9 wet days and about 13.2 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 6% of the time in January, and the air most often feels humid.

Daylight stretches from about 13 h 24 min at the start of January to 13 hours by month's end. Set against the rest of the year, January is Itajubá's 12th-clearest and 7th-windiest month. For the whole year in context, see Itajubá's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
17°
12th coldest
Rainfall
362 mm
25.9 wet days
Daylight
13 h 12 min
6:34 AM – 7:48 PM
Cloud cover
82%
12th clearest
Wind
6 km/h
7th windiest
Solar energy
5.31 kWh/m²
Travel score
4.2
out of 10

Itajubá 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 25°C through the month.

A typical January day in Itajubá reaches about 25°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, January runs on par with December and on par with February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12517
22517
32517
42517
52517
62517
72517
82517
92517
102517
112517
122517
132517
142517
152517
162517
172517
182517
192517
202517
212517
222517
232517
242517
252517
262517
272517
282517
292517
302517
312517

Itajubá weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 17°36225.913.24.2
Feb25° / 17°23921.812.84.5
Mar24° / 16°20622.212.25.0
Apr23° / 15°8312.311.56.5
May21° / 12°577.610.96.8
Jun20° / 11°34510.77.3
Jul20° / 10°354.210.87.5
Aug22° / 11°334.711.27.8
Sep23° / 13°9410.411.96.8
Oct24° / 15°15417.512.55.7
Nov24° / 16°22521.513.14.9
Dec24° / 17°30625.313.34.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11882
21882
31882
41882
51882
61882
71882
81882
91882
101882
111882
121981
132080
142080
152080
162080
171981
181981
191981
201981
211981
222080
232080
242080
252080
262080
272080
282179
292278
302278
312278

Chance of precipitation in January

Any precipitation

Itajubá gets around 362 mm of rain over 25.9 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 83% and peaks near 84% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
184
284
383
483
583
683
783
883
982
1082
1182
1282
1382
1482
1582
1682
1782
1883
1983
2083
2183
2284
2384
2484
2584
2684
2784
2884
2983
3083
3182

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the humid band about 72% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
10167212
20157312
30157312
40157213
50157213
60157213
70157114
80157114
90157114
100157114
110157114
120157114
130157114
140157114
150147214
160147214
170147214
180147214
190137314
200137314
210137314
221127314
231127314
241127314
251127314
261127314
271127314
281127314
291127314
301127314
311127314

Wind in January

Winds average 6 km/h in January.

Across January, daily wind ranges from about 6 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
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 24 min at the start of January to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over January. Sunrise moves from 6:24 AM to 6:44 AM, and sunset from 7:46 PM to 7:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:247:46
213.36:257:46
313.36:267:46
413.36:267:46
513.36:277:47
613.36:277:47
713.36:287:47
813.36:297:47
913.36:297:47
1013.36:307:48
1113.36:317:48
1213.36:317:48
1313.36:327:48
1413.36:337:48
1513.26:337:48
1613.26:347:48
1713.26:357:48
1813.26:357:48
1913.26:367:48
2013.26:377:48
2113.26:377:48
2213.26:387:48
2313.26:397:48
2413.16:397:48
2513.16:407:48
2613.16:417:47
2713.16:417:47
2813.16:427:47
2913.16:437:47
3013.06:437:46
3113.06:447:46

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.31 kWh/m².

For context, solar energy here swings from a low near 3.63 kWh/m² to a high of 5.54 kWh/m² in February across the year — January's 5.31 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
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
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in January

Hazard calendar for Itajubá

In seasonPeak

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

Itajubá's monsoon runs November–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 Itajubá?

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

4.2
Sightseeing
12th-best month of the year
3.8
Beach & pool
12th-best month of the year

January is a reasonable time to visit Itajubá for sightseeing.

What to pack for Itajubá in January

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

In January, Itajubá sees daytime highs around 25°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 26 days see rain.

rain gearlight clothessun protection

UV index in Itajubá 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 Itajubá peaks around February 9 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 9UV 15Jul 10UV 6
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec15Extreme

Air quality in Itajubá 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 Itajubá is worst in September — around 18 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1418 µg/m³Dec 1710 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar11Good
Apr13Moderate
May14Moderate
Jun15Moderate
Jul14Moderate
Aug16Moderate
Sep18Moderate
Oct14Moderate
Nov10Good
Dec10Good
Location & terrain

Where is Itajubá?

Itajubá sits at 22.4°S, 45.5°W, 858 m above sea level, in Brazil. The nearest listed city is Santa Rita do Sapucaí, 32 km away.

Topography around Itajubá

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

Within 3 km, the terrain around Itajubá has significant variations in elevation — a maximum elevation change of 415 m around an average of 893 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,075 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,299 m.

The land around Itajubá is covered by grassland (40%), artificial surfaces (30%) and trees (27%) within 3 km, grassland (57%) and trees (37%) within 16 km, and grassland (47%) and trees (43%) within 80 km.

3 km
415 m
16 km
1,075 m
80 km
2,299 m
treesgrasslandcroplandartificial surfacesbare terrain
January weather nearby: Santa Rita do Sapucaí 32 km · Paraisópolis 37 km · Campos do Jordão 38 km · Lorena 48 km · Passa Quatro 50 km · Potim 51 km · Guaratinguetá 51 km · Lambari 51 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 Itajubá (-22.4256°, -45.4528°, elevation 858 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).