Arujá in Spring
In spring (September, October and November), Arujá sees average daytime highs around 25°C and overnight lows near 16°C, with 367 mm of rain over about 42 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across spring, daytime highs hold fairly steady around 25°C. The sky is clear or mostly clear about 21% of the time across spring, and the air most often feels humid.
Spring is Arujá's 3rd-best season to visit on our travel score. For the whole year in context, see Arujá's year-round climate.
- Avg daytime high
- 25°C
- 3rd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 367 mm
- 42 wet days
- Avg wind
- 9 km/h
- Travel score
- 6.1
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Arujá in Spring
Across spring, daytime highs hold fairly steady around 25°C.
A typical spring day in Arujá reaches about 25°C and drops to 16°C overnight. The warmest of the three months is November, the coolest September.
Arujá weather by month
How the three spring months (September, October and November) 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° | 253 | 24.1 | 13.3 | 4.3 |
| Feb | 28° / 19° | 198 | 20.2 | 12.8 | 4.5 |
| Mar | 27° / 19° | 171 | 21.1 | 12.2 | 4.9 |
| Apr | 25° / 17° | 71 | 11.3 | 11.5 | 6.5 |
| May | 23° / 14° | 65 | 8.2 | 10.9 | 7.1 |
| Jun | 22° / 13° | 45 | 5.6 | 10.6 | 7.5 |
| Jul | 22° / 12° | 54 | 5.6 | 10.7 | 7.5 |
| Aug | 23° / 13° | 41 | 5.5 | 11.2 | 7.8 |
| Sep | 24° / 15° | 90 | 10.3 | 11.9 | 6.9 |
| Oct | 25° / 16° | 117 | 14.5 | 12.5 | 5.9 |
| Nov | 25° / 17° | 161 | 17.2 | 13.1 | 5.4 |
| Dec | 27° / 18° | 198 | 21.2 | 13.4 | 4.7 |
Cloud cover in Spring
The sky is clear or mostly clear about 21% of the time across spring.
Chance of precipitation in Spring
Arujá gets around 367 mm of rain over 42 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 9 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 30 min in early September to 13 h 18 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.0 kWh/m².
Hazard calendar for Arujá
In spring, Arujá overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Arujá's rainy season runs October–March, when most of the year's rain falls.
Is spring a good time to visit Arujá?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Arujá for sightseeing.
What to pack for Arujá in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Arujá sees daytime highs around 25°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 42 days see rain.
Sea temperature near Arujá in Spring
The nearest coast averages about 22°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 57 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 Arujá in Spring
Clear-sky midday UV across spring averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Arujá peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (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) | 15 | 15 | 12 | 9 | 7 | 6 | 5 | 8 | 8 | 11 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | High |
| Aug | 8 | Very high |
| Sep | 8 | Very high |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in Arujá in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Arujá is worst in June — around 71 µg/m³ PM2.5 (unhealthy), about 2.3× the cleanest month (December, 31 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) | 32 | 34 | 41 | 48 | 62 | 71 | 70 | 60 | 53 | 39 | 32 | 31 |
| Level | Moderate | Moderate | Poor | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 32 | Moderate |
| Feb | 34 | Moderate |
| Mar | 41 | Poor |
| Apr | 48 | Poor |
| May | 62 | Unhealthy |
| Jun | 71 | Unhealthy |
| Jul | 70 | Unhealthy |
| Aug | 60 | Unhealthy |
| Sep | 53 | Poor |
| Oct | 39 | Poor |
| Nov | 32 | Moderate |
| Dec | 31 | Moderate |
Where is Arujá?
Arujá sits at 23.4°S, 46.3°W, 788 m above sea level, in Brazil. The nearest listed city is Bairro Parque Nossa Senhora do Carmo, 1.0 km away.
Topography around Arujá
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Arujá.
Within 3 km, the terrain around Arujá has only modest variations in elevation — a maximum elevation change of 210 m around an average of 799 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 837 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,045 m.
The land around Arujá is covered by trees (47%) and artificial surfaces (37%) within 3 km, trees (56%) and artificial surfaces (23%) within 16 km, and trees (54%) and grassland (21%) 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 Arujá (-23.3961°, -46.3208°, elevation 788 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.