Iguape weather in January

In January, Iguape sees average daytime highs of 28°C and overnight lows near 24°C, with 217 mm of rain across 20.1 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 17% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 13 h 30 min at the start of January to 13 h 12 min by month's end. Set against the rest of the year, January is Iguape's 11th-clearest and 5th-windiest month. For the whole year in context, see Iguape's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
24°
11th coldest
Rainfall
217 mm
20.1 wet days
Daylight
13 h 24 min
6:38 AM – 8:01 PM
Cloud cover
70%
11th clearest
Wind
12 km/h
5th windiest
Solar energy
5.74 kWh/m²
Travel score
4.8
out of 10

Iguape 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 28°C through the month.

A typical January day in Iguape reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312825

Iguape 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
Jan28° / 24°21720.113.44.8
Feb28° / 24°2061712.94.9
Mar27° / 24°17318.812.25.2
Apr26° / 22°10313.811.46.1
May23° / 20°10313.310.86.4
Jun22° / 18°909.810.56.7
Jul21° / 17°859.910.66.6
Aug21° / 17°659.111.16.6
Sep22° / 19°10412.711.86.1
Oct23° / 20°10514.212.65.9
Nov25° / 22°11114.813.25.9
Dec27° / 23°1401613.55.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23466
33466
43466
53466
63466
73466
83466
93466
103466
113466
123466
133466
143466
153466
163466
173466
183565
193466
203466
213466
223466
233565
243466
253466
263466
273565
283664
293664
303763
313763

Chance of precipitation in January

Any precipitation

Iguape gets around 217 mm of rain over 20.1 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 63% and peaks near 65% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
161
261
362
462
563
663
763
863
963
1063
1163
1263
1363
1463
1564
1664
1764
1865
1965
2065
2165
2265
2365
2465
2564
2664
2764
2863
2963
3062
3162

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 52% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13165625
23165526
33155626
43155527
52155627
62145727
72145628
82145628
92145628
102145628
112145529
122155429
132155429
142155429
152155429
162155429
172165230
182165230
192165230
202165131
212165131
222165032
232154933
242154934
252154835
262144836
272144837
282134837
292134738
301134739
311134739

Wind in January

Winds average 12 km/h in January.

Across January, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 30 min at the start of January to 13 h 12 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 6:28 AM to 6:49 AM, and sunset from 7:59 PM to 7:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.56:287:59
213.56:297:59
313.56:297:59
413.56:307:59
513.56:318:00
613.56:318:00
713.56:328:00
813.56:338:00
913.56:338:00
1013.46:348:01
1113.46:358:01
1213.46:358:01
1313.46:368:01
1413.46:378:01
1513.46:378:01
1613.46:388:01
1713.46:398:01
1813.46:408:01
1913.36:408:01
2013.36:418:01
2113.36:428:01
2213.36:428:00
2313.36:438:00
2413.36:448:00
2513.36:458:00
2613.26:458:00
2713.26:467:59
2813.26:477:59
2913.26:487:59
3013.26:487:58
3113.26:497:58

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.74 kWh/m².

For context, solar energy here swings from a low near 2.83 kWh/m² to a high of 5.97 kWh/m² in December across the year — January's 5.74 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in January

Is January a good time to visit Iguape?

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

4.8
Sightseeing
12th-best month of the year
5.2
Beach & pool
6th-best month of the year

January is a reasonable time to visit Iguape for sightseeing.

What to pack for Iguape in January

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

In January, Iguape sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near Iguape in January

The nearest coast averages about 27°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 km away) is warmest in February at about 27°C and coldest in August near 19°C.

It's comfortable for a long swim from Sep 6 to Jul 12 — about 10.2 months when the water holds above 20°C.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May23Refreshing
Jun21Refreshing
Jul20Cool
Aug19Cool
Sep20Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in Iguape 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 Iguape peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeJan 19UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5High
Jul5Moderate
Aug7High
Sep7High
Oct10Extreme
Nov12Extreme
Dec13Extreme

Air quality in Iguape 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 Iguape is worst in July — around 19 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (March, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 2319 µg/m³Mar 1510 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar10Good
Apr11Good
May13Moderate
Jun18Moderate
Jul19Moderate
Aug19Moderate
Sep17Moderate
Oct14Moderate
Nov12Good
Dec12Good
Location & terrain

Where is Iguape?

Iguape sits at 24.7°S, 47.6°W, 8 m above sea level, in Brazil. The nearest listed city is Pariquera-Açu, 33 km away.

Topography around Iguape

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

Within 3 km, the terrain around Iguape has significant variations in elevation — a maximum elevation change of 348 m around an average of 20 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 494 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,482 m.

The land around Iguape is covered by trees (44%) within 3 km, trees (51%) and water (36%) within 16 km, and trees (63%) and water (32%) within 80 km.

3 km
348 m
16 km
494 m
80 km
1,482 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
January weather nearby: Pariquera-Açu 33 km · Registro 38 km · Juquiá 44 km · Jacupiranga 45 km · Miracatu 48 km · Cajati 57 km · Itariri 60 km · Peruíbe 71 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 Iguape (-24.7081°, -47.5553°, elevation 8 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).