Iguaí in Summer
In summer (December, January and February), Iguaí sees average daytime highs around 29°C and overnight lows near 21°C, with 260 mm of rain over about 44 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 16% of the time across summer, and the air most often feels muggy.
Summer is Iguaí's weakest season of the year to visit on our travel score. For the whole year in context, see Iguaí's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 21°C
- Rainfall
- 260 mm
- 44 wet days
- Avg wind
- 8 km/h
- Travel score
- 4.7
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Iguaí in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Iguaí reaches about 29°C and drops to 21°C overnight. The warmest of the three months is February, the coolest December.
Iguaí weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 21° | 84 | 15.1 | 12.8 | 4.7 |
| Feb | 29° / 21° | 65 | 14.1 | 12.5 | 4.6 |
| Mar | 29° / 21° | 97 | 17.4 | 12.1 | 4.5 |
| Apr | 28° / 20° | 72 | 17 | 11.7 | 5.0 |
| May | 27° / 19° | 48 | 12.2 | 11.3 | 6.1 |
| Jun | 25° / 18° | 42 | 12.9 | 11.1 | 6.3 |
| Jul | 25° / 17° | 44 | 13.8 | 11.2 | 6.3 |
| Aug | 25° / 17° | 40 | 13.1 | 11.5 | 6.3 |
| Sep | 26° / 18° | 40 | 11.6 | 11.9 | 6.3 |
| Oct | 28° / 19° | 63 | 12.8 | 12.3 | 5.9 |
| Nov | 28° / 20° | 123 | 15.9 | 12.7 | 5.2 |
| Dec | 29° / 20° | 111 | 15.1 | 12.9 | 4.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 16% of the time across summer.
Chance of precipitation in Summer
Iguaí gets around 260 mm of rain over 44 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 48 min in early December to 12 h 18 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.8 kWh/m².
Is summer a good time to visit Iguaí?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Iguaí for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Iguaí in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Iguaí sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 44 days see rain.
UV index in Iguaí in Summer
Clear-sky midday UV across summer averages 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 Iguaí peaks around February 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 8 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 15 | 15 | 12 | 9 | 8 | 8 | 10 | 11 | 13 | 14 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 12 | Extreme |
| May | 9 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 10 | Very high |
| Sep | 11 | Extreme |
| Oct | 13 | Extreme |
| Nov | 14 | Extreme |
| Dec | 13 | Extreme |
Where is Iguaí?
Iguaí sits at 14.8°S, 40.1°W, 354 m above sea level, in Brazil. The nearest listed city is Poções, 39 km away.
Topography around Iguaí
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Iguaí.
Within 3 km, the terrain around Iguaí has only modest variations in elevation — a maximum elevation change of 196 m around an average of 383 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 923 m; within 80 km, large variations in elevation — a maximum elevation change of 1,109 m.
The land around Iguaí is covered by grassland (84%) within 3 km, grassland (68%) and trees (31%) within 16 km, and grassland (61%) and trees (37%) within 80 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
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 Iguaí (-14.7564°, -40.0892°, elevation 354 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.