Itaí weather in January

In January, Itaí sees average daytime highs of 29°C and overnight lows near 20°C, with 234 mm of rain across 21.8 wet days and about 13.3 hours of daylight. It is the 2nd-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 11% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of January to 13 h 06 min by month's end. Set against the rest of the year, January is Itaí's 12th-clearest and 10th-windiest month. For the whole year in context, see Itaí's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
20°
11th coldest
Rainfall
234 mm
21.8 wet days
Daylight
13 h 18 min
6:47 AM – 8:05 PM
Cloud cover
76%
12th clearest
Wind
10 km/h
10th windiest
Solar energy
5.44 kWh/m²
Travel score
4.0
out of 10

Itaí 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 29°C through the month.

A typical January day in Itaí reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 32°C. Set against its neighbours, January runs on par with December and on par with February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12920
22920
32920
42920
52920
62920
72920
82920
92920
102920
112920
122920
132920
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312920

Itaí 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
Jan29° / 20°23421.813.34.0
Feb29° / 20°17218.912.84.1
Mar28° / 19°12516.312.25.1
Apr27° / 17°617.511.56.9
May24° / 15°687.210.97.3
Jun23° / 13°585.910.67.6
Jul23° / 13°504.910.77.8
Aug25° / 13°46511.28.0
Sep26° / 15°908.811.97.0
Oct27° / 17°11411.912.56.1
Nov28° / 18°13414.113.15.6
Dec28° / 19°16617.913.44.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% 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 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22575
32575
42575
52476
62476
72377
82377
92377
102476
112476
122476
132476
142476
152476
162476
172575
182575
192575
202575
212575
222476
232575
242575
252674
262674
272674
282773
292773
302971
312971

Chance of precipitation in January

Any precipitation

Itaí gets around 234 mm of rain over 21.8 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 69% and peaks near 71% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
165
266
367
468
569
669
770
871
971
1071
1171
1270
1370
1470
1569
1669
1769
1869
1969
2069
2169
2269
2369
2470
2570
2670
2770
2870
2970
3069
3169

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 79% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
13225718
23225718
33215818
43205819
53195919
63195919
73186019
83185920
93176020
103176020
113176020
123176020
133176020
143176020
153176119
163176119
173186019
183186019
193176119
203176119
213176119
223176119
233176119
243176119
253166219
263166219
273166219
284166119
294166119
304166119
314166119

Wind in January

Winds average 10 km/h in January.

Across January, daily wind ranges from about 9 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
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 24 min at the start of January to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over January. Sunrise moves from 6:37 AM to 6:57 AM, and sunset from 8:02 PM to 8:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:378:02
213.46:388:02
313.46:388:03
413.46:398:03
513.46:398:03
613.46:408:03
713.46:418:04
813.46:418:04
913.46:428:04
1013.46:438:04
1113.36:438:04
1213.36:448:04
1313.36:458:04
1413.36:458:04
1513.36:468:05
1613.36:478:05
1713.36:478:05
1813.36:488:05
1913.36:498:04
2013.26:508:04
2113.26:508:04
2213.26:518:04
2313.26:528:04
2413.26:528:04
2513.26:538:04
2613.26:548:04
2713.16:548:03
2813.16:558:03
2913.16:568:03
3013.16:568:03
3113.16:578:02

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.44 kWh/m².

For context, solar energy here swings from a low near 3.25 kWh/m² to a high of 5.82 kWh/m² in December across the year — January's 5.44 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in January

Hazard calendar for Itaí

In seasonPeak

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

Itaí's rainy season runs October–March, 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 Itaí?

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

4.0
Sightseeing
12th-best month of the year
5.0
Beach & pool
12th-best month of the year

January is a reasonable time to visit Itaí for sightseeing.

What to pack for Itaí in January

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

In January, Itaí sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Itaí 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 Itaí peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Itaí 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 Itaí is worst in September — around 16 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (March, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1416 µg/m³Mar 158 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr9Good
May10Good
Jun10Good
Jul11Good
Aug14Moderate
Sep16Moderate
Oct13Moderate
Nov8Good
Dec8Good
Location & terrain

Where is Itaí?

Itaí sits at 23.4°S, 49.1°W, 616 m above sea level, in Brazil. The nearest listed city is Taquarituba, 20 km away.

Topography around Itaí

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

Within 3 km, the terrain around Itaí has only modest variations in elevation — a maximum elevation change of 167 m around an average of 634 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 232 m; within 80 km, large variations in elevation — a maximum elevation change of 695 m.

The land around Itaí is covered by cropland (38%), grassland (25%) and trees (24%) within 3 km, cropland (47%) and trees (24%) within 16 km, and cropland (39%), trees (37%) and grassland (20%) within 80 km.

3 km
167 m
16 km
232 m
80 km
695 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Taquarituba 20 km · Paranapanema 38 km · Piraju 39 km · Avaré 39 km · Fartura 43 km · Cerqueira César 43 km · Itaberá 50 km · Itatinga 60 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 Itaí (-23.4178°, -49.0906°, elevation 616 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).