Caicó in Winter
In winter (June, July and August), Caicó sees average daytime highs around 33°C and overnight lows near 22°C, with 36 mm of rain over about 6 wet days across the season. It is the coldest season of the year and the 3rd-wettest season.
Across winter, daytime highs hold fairly steady around 33°C. The sky is clear or mostly clear about 45% of the time across winter, and the air most often feels humid.
Winter is Caicó's best season of the year to visit on our travel score. For the whole year in context, see Caicó's year-round climate.
- Avg daytime high
- 33°C
- coldest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 36 mm
- 6 wet days
- Avg wind
- 18 km/h
- Travel score
- 4.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Caicó in Winter
Across winter, daytime highs hold fairly steady around 33°C.
A typical winter day in Caicó reaches about 33°C and drops to 22°C overnight. The warmest of the three months is August, the coolest August.
How winter really feels in Caicó
Once humidity and wind are folded in, winter brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Caicó weather by month
How the three winter months (June, July and August) 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 | 35° / 24° | 59 | 7 | 12.3 | 2.6 |
| Feb | 35° / 24° | 56 | 8.4 | 12.2 | 2.6 |
| Mar | 34° / 24° | 101 | 11.8 | 12 | 2.7 |
| Apr | 34° / 24° | 67 | 10.3 | 11.9 | 3.1 |
| May | 33° / 23° | 30 | 5.5 | 11.7 | 3.6 |
| Jun | 32° / 22° | 19 | 3.4 | 11.6 | 4.4 |
| Jul | 32° / 21° | 12 | 2 | 11.7 | 4.6 |
| Aug | 33° / 21° | 5 | 0.4 | 11.8 | 4.3 |
| Sep | 35° / 22° | 1 | 0.1 | 12 | 3.4 |
| Oct | 36° / 23° | 4 | 0.3 | 12.1 | 2.7 |
| Nov | 36° / 23° | 1 | 0.2 | 12.3 | 2.5 |
| Dec | 36° / 24° | 11 | 1.9 | 12.4 | 2.5 |
Cloud cover in Winter
The sky is clear or mostly clear about 45% of the time across winter.
Chance of precipitation in Winter
Caicó gets around 36 mm of rain over 6 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 18 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 42 min in early June to 11 h 54 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 5.2 kWh/m².
Is winter a good time to visit Caicó?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Caicó for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Caicó in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Caicó sees daytime highs around 33°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.
UV index in Caicó in Winter
Clear-sky midday UV across winter averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Caicó peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 10 (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) | 13 | 15 | 15 | 14 | 11 | 10 | 10 | 10 | 12 | 12 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Caicó in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Caicó is worst in October — around 21 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (July, 5 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 9 | 8 | 8 | 7 | 6 | 5 | 13 | 20 | 21 | 19 | 16 |
| Level | Moderate | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 9 | Good |
| Mar | 8 | Good |
| Apr | 8 | Good |
| May | 7 | Good |
| Jun | 6 | Good |
| Jul | 5 | Good |
| Aug | 13 | Moderate |
| Sep | 20 | Moderate |
| Oct | 21 | Moderate |
| Nov | 19 | Moderate |
| Dec | 16 | Moderate |
Where is Caicó?
Caicó sits at 6.5°S, 37.1°W, 161 m above sea level, in Brazil. The nearest listed city is Jucurutu, 48 km away.
Topography around Caicó
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Caicó.
Within 3 km, the terrain around Caicó has only modest variations in elevation — a maximum elevation change of 54 m around an average of 162 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 499 m; within 80 km, large variations in elevation — a maximum elevation change of 867 m.
The land around Caicó is covered by shrubs (36%), grassland (31%) and artificial surfaces (27%) within 3 km, shrubs (69%) and grassland (26%) within 16 km, and shrubs (77%) 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 Caicó (-6.4583°, -37.0978°, elevation 161 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.