Climate and average weather in Iguape

In Iguape, the summers are muggy, warm, wet, and partly cloudy and the winters are mild and partly cloudy.

Best: late March to late December

Over the course of the year, the temperature in Iguape typically varies from 17°C to 28°C, and is rarely below 15°C or above 31°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Iguape for warm-weather activities is from late March to late December.

Hottest
Feb
28°
Coldest
Jul
17°
Wettest
Jan
217 mm
Driest
Aug
65 mm
Rain / yr
1503 mm
170 wet days
Daylight
10.5–13.5 h
shortest–longest
Elevation
8 m
24.7°S
Clearest
Apr
57% cloud

Iguape is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Iguape weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late March to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Iguape, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Iguape stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 28°C and low of 24°C; the coolest is July, with an average low of 17°C and high of 21°C.

Days typically run about 4°C warmer than nights year-round.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2824
Feb2824
Mar2724
Apr2622
May2320
Jun2218
Jul2117
Aug2117
Sep2219
Oct2320
Nov2522
Dec2723

Average hourly temperature in Iguape

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on February afternoons, near 28°C, and coldest before dawn in July, near 17°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Iguape weather by month

Every month at a glance. Click a month for its detailed page.

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

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Iguape gets about 1503 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.3 months, from around Nov 4 to Apr 12, peaking in January at about 64% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 4.

January is the wettest month by volume, with 217 mm over about 20 wet days; August is the driest, with 65 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 20 · 64%Aug 4 · 28%
Rain on a day (%)Rain days
Jan6320
Feb6117
Mar6019
Apr4714
May4313
Jun3310
Jul3110
Aug309
Sep4113
Oct4714
Nov4915
Dec5316

Monthly rainfall

Over a full year, Iguape collects about 1503 mm of rain across 170 wet days — roughly 125 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 217 mm, while August is the driest at just 65 mm. The three wettest months alone bring about 40% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec217206173103103908565104105111140
Rainfall (mm)Rain days
Jan21720
Feb20617
Mar17319
Apr10314
May10313
Jun9010
Jul8510
Aug659
Sep10413
Oct10514
Nov11115
Dec14016

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Iguape, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around February 25 and lasts for 6.4 months, ending around September 7. The clearest month is April, when the sky is clear, mostly clear, or partly cloudy 54% of the time on average.

The cloudier part of the year begins around September 8 and lasts for 5.6 months, ending around February 24. The cloudiest month is October, when it is overcast or mostly cloudy 71% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecApr 29 · 56%Oct 7 · 27%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3565
Feb3961
Mar4654
Apr5446
May5149
Jun4951
Jul5050
Aug4951
Sep3763
Oct2971
Nov3664
Dec3763

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 13 h 30 min of light; the shortest, around June 5, only 10 h 30 min — a swing of roughly 3 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.46:388:01
Feb12.96:597:51
Mar12.27:157:25
Apr11.47:286:53
May10.87:426:31
Jun10.57:566:25
Jul10.67:586:34
Aug11.17:406:48
Sep11.87:097:00
Oct12.66:387:13
Nov13.26:197:32
Dec13.56:217:52

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Iguape averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 11 days.

The sunnier stretch runs 5.7 months, from around Mar 22 to Sep 10. The sunniest month is August, with roughly 10 sunny days (mixed).

The greyest month is October, down near 4 sunny days — about 57% fewer than the August peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedAug 2611 daysOct 144 days
Sunny daysSky
Jan5Gloomy
Feb6Gloomy
Mar7Gloomy
Apr9Mixed
May10Mixed
Jun10Mixed
Jul11Mixed
Aug10Mixed
Sep7Gloomy
Oct4Gloomy
Nov5Gloomy
Dec6Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Iguape, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 7.0 months, from around October 11 to May 11. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around May 12 to October 10, and July is the most comfortable month — the air is dry or comfortable 31% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 23 · 35%Jan 1 · 0%miserablemuggyhumidoppressivecomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan002155231
Feb001135333
Mar003205918
Apr031335445
May3113145100
Jun616423510
Jul1120511800
Aug919512100
Sep415433710
Oct192650130
Nov052043311
Dec018275411

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Iguape is typically light breeze, near 12 km/h, and varies little with the seasons.

The windier part of the year lasts 4.4 months, from around Sep 2 to Jan 12. The windiest month is November, averaging about 14 km/h (light breeze).

The calmer part of the year runs from around Jan 13 to Sep 1, with June the calmest month at about 11 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeNov 17 · 14 km/hJun 12 · 11 km/h
Wind speed (km/h)Feels
Jan12light breeze
Feb12calm
Mar12calm
Apr12calm
May11calm
Jun11calm
Jul11calm
Aug12calm
Sep13light breeze
Oct14light breeze
Nov14light breeze
Dec13light breeze

Best time to visit Iguape

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Iguape throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid December, Iguape is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Iguape for general outdoor tourist activities is from late March to late December, with a peak score in the third week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 16 · 6.7

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan4.8fair
Feb4.9fair
Mar5.2fair
Apr6.1good
May6.4good
Jun6.6good
Jul6.6good
Aug6.6good
Sep6.1good
Oct5.9good
Nov5.9good
Dec5.5fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Iguape for hot-weather activities is from mid October to late June, with a peak score in the third week of April.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationApr 17 · 5.8

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Iguape, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around February (highs near 28°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 21°C), pack rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Iguape sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

Sea temperature near Iguape

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

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 (midday) in Iguape by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

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

Average hourly UV index in Iguape

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan97
Feb8.56.5
Mar7.55.5
Apr6.53.5
May5.50.5
Jun50
Jul50
Aug62.5
Sep6.53
Oct7.55.5
Nov8.56.5
Dec8.56.5

Air quality in Iguape by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly 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
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Iguape is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Iguape banks about 4,622 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,0004,0005,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan496
Feb452
Mar481
Apr421
May360
Jun305
Jul286
Aug291
Sep311
Oct365
Nov394
Dec462

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Iguape receives about 4.4 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.8 and 6.0 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Oct 4 to Apr 2. The brightest month is December, averaging about 5.9 kWh/m² (bright).

The dimmest month is June, down near 2.9 kWh/m² — roughly 52% less than the December peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 236.0 kWhJun 252.8 kWh
Solar energy (kWh/m²)Level
Jan5.7Bright
Feb5.6Bright
Mar4.9Bright
Apr4.1Bright
May3.2Moderate
Jun2.8Moderate
Jul3.0Moderate
Aug3.6Moderate
Sep4.1Bright
Oct4.8Bright
Nov5.5Bright
Dec6.0Bright

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
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).