Guarulhos in Winter
In winter (June, July and August), Guarulhos sees average daytime highs around 23°C and overnight lows near 13°C, with 142 mm of rain over about 16 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs climb from about 22°C in early June to 24°C by late August. The sky is clear or mostly clear about 46% of the time across winter, and the air most often feels dry.
Winter is Guarulhos's best season of the year to visit on our travel score. For the whole year in context, see Guarulhos's year-round climate.
- Avg daytime high
- 23°C
- coldest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 142 mm
- 16 wet days
- Avg wind
- 10 km/h
- Travel score
- 7.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Guarulhos in Winter
Over the season highs climb from about 22°C in early June to 24°C by late August.
A typical winter day in Guarulhos reaches about 23°C and drops to 13°C overnight. The warmest of the three months is August, the coolest July.
Guarulhos 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 | 27° / 19° | 232 | 23.8 | 13.3 | 4.3 |
| Feb | 28° / 19° | 179 | 20.2 | 12.8 | 4.5 |
| Mar | 27° / 19° | 154 | 20.1 | 12.2 | 5.0 |
| Apr | 25° / 17° | 64 | 10.7 | 11.5 | 6.6 |
| May | 23° / 14° | 64 | 7.8 | 10.9 | 7.1 |
| Jun | 22° / 13° | 47 | 5.6 | 10.6 | 7.5 |
| Jul | 22° / 12° | 54 | 5.6 | 10.7 | 7.5 |
| Aug | 23° / 13° | 40 | 5.2 | 11.2 | 7.8 |
| Sep | 24° / 15° | 90 | 9.8 | 11.9 | 6.9 |
| Oct | 25° / 16° | 116 | 14.7 | 12.6 | 5.9 |
| Nov | 25° / 17° | 152 | 16.8 | 13.1 | 5.4 |
| Dec | 27° / 18° | 181 | 20.9 | 13.4 | 4.8 |
Cloud cover in Winter
The sky is clear or mostly clear about 46% of the time across winter.
Chance of precipitation in Winter
Guarulhos gets around 142 mm of rain over 16 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 10 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 42 min in early June to 11 h 30 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 3.7 kWh/m².
Hazard calendar for Guarulhos
None of Guarulhos's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Guarulhos's rainy season runs October–March, when most of the year's rain falls.
Is winter a good time to visit Guarulhos?
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 one of the better times to visit Guarulhos for general sightseeing.
What to pack for Guarulhos in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Guarulhos sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes. About 16 days see rain.
Sea temperature near Guarulhos in Winter
The nearest coast averages about 21°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 62 km away) is warmest in February at about 27°C and coldest in August near 21°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 26 | 24 | 22 | 21 | 21 | 21 | 22 | 23 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 26 | Warm |
| May | 24 | Refreshing |
| Jun | 22 | Refreshing |
| Jul | 21 | Refreshing |
| Aug | 21 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 25 | Warm |
UV index in Guarulhos in Winter
Clear-sky midday UV across winter averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Guarulhos peaks around February 8 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 5 (moderate).
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 | 10 | 9 | 7 | 6 | 5 | 7 | 8 | 11 | 12 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 10 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | Moderate |
| Aug | 7 | Very high |
| Sep | 8 | Very high |
| Oct | 11 | Extreme |
| Nov | 12 | Extreme |
| Dec | 14 | Extreme |
Air quality in Guarulhos 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 Guarulhos is worst in June — around 22 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 10 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Guarulhos's WHO annual average of 15.2 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 11 | 13 | 15 | 20 | 22 | 22 | 19 | 17 | 13 | 10 | 10 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 11 | Good |
| Mar | 13 | Moderate |
| Apr | 15 | Moderate |
| May | 20 | Moderate |
| Jun | 22 | Moderate |
| Jul | 22 | Moderate |
| Aug | 19 | Moderate |
| Sep | 17 | Moderate |
| Oct | 13 | Moderate |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Guarulhos?
Guarulhos sits at 23.5°S, 46.5°W, 774 m above sea level, in Brazil. The nearest listed city is Cangaiba, 4.0 km away.
Topography around Guarulhos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Guarulhos.
Within 3 km, the terrain around Guarulhos has only modest variations in elevation — a maximum elevation change of 92 m around an average of 757 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 493 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,031 m.
The land around Guarulhos is covered by artificial surfaces (81%) within 3 km, artificial surfaces (58%) and trees (35%) within 16 km, and trees (56%) 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 Guarulhos (-23.4628°, -46.5333°, elevation 774 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.