Altos in Spring
In spring (September, October and November), Altos sees average daytime highs around 36°C and overnight lows near 25°C, with 58 mm of rain over about 9 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across spring, daytime highs hold fairly steady around 36°C. The sky is clear or mostly clear about 55% of the time across spring, and the air most often feels muggy.
Spring is Altos's weakest season of the year to visit on our travel score. For the whole year in context, see Altos's year-round climate.
- Avg daytime high
- 36°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 58 mm
- 9 wet days
- Avg wind
- 9 km/h
- Travel score
- 2.1
- weakest season of the year
- Months
- Sep · Oct · Nov
Temperature in Altos in Spring
Across spring, daytime highs hold fairly steady around 36°C.
A typical spring day in Altos reaches about 36°C and drops to 25°C overnight. The warmest of the three months is October, the coolest September.
How spring really feels in Altos
Once humidity and wind are folded in, spring brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Altos 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 | 32° / 23° | 257 | 22.4 | 12.3 | 2.7 |
| Feb | 32° / 23° | 299 | 22.5 | 12.2 | 2.7 |
| Mar | 31° / 23° | 371 | 27 | 12 | 2.6 |
| Apr | 31° / 23° | 297 | 23.6 | 11.9 | 2.9 |
| May | 32° / 23° | 129 | 12.7 | 11.8 | 3.8 |
| Jun | 33° / 23° | 18 | 3.5 | 11.7 | 4.2 |
| Jul | 34° / 24° | 9 | 1.5 | 11.7 | 4.0 |
| Aug | 35° / 24° | 2 | 0.5 | 11.8 | 3.2 |
| Sep | 36° / 25° | 4 | 0.8 | 12 | 2.3 |
| Oct | 37° / 25° | 17 | 2.2 | 12.1 | 1.9 |
| Nov | 36° / 25° | 37 | 5.5 | 12.2 | 2.1 |
| Dec | 35° / 25° | 97 | 11.2 | 12.3 | 2.5 |
Cloud cover in Spring
The sky is clear or mostly clear about 55% of the time across spring.
Chance of precipitation in Spring
Altos gets around 58 mm of rain over 9 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels muggy — 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 54 min in early September to 12 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 6.5 kWh/m².
Hazard calendar for Altos
None of Altos's seasonal hazards peak in spring. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Altos's monsoon runs January–April, when most of the year's rain falls.
Is spring a good time to visit Altos?
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 weaker month for outdoor sightseeing in Altos.
What to pack for Altos in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Altos sees daytime highs around 36°C and nights near 25°C. Pack light clothes and sun protection. About 9 days see rain.
UV index in Altos in Spring
Clear-sky midday UV across spring averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Altos peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 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 | 14 | 15 | 13 | 11 | 10 | 10 | 10 | 12 | 12 | 12 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | 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 | 11 | Extreme |
Air quality in Altos 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 Altos is worst in October — around 35 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (June, 8 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) | 15 | 16 | 15 | 14 | 12 | 8 | 10 | 16 | 25 | 35 | 23 | 17 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 16 | Moderate |
| Mar | 15 | Moderate |
| Apr | 14 | Moderate |
| May | 12 | Good |
| Jun | 8 | Good |
| Jul | 10 | Good |
| Aug | 16 | Moderate |
| Sep | 25 | Moderate |
| Oct | 35 | Moderate |
| Nov | 23 | Moderate |
| Dec | 17 | Moderate |
Where is Altos?
Altos sits at 5.0°S, 42.5°W, 192 m above sea level, in Brazil. The nearest listed city is José de Freitas, 34 km away.
Topography around Altos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Altos.
Within 3 km, the terrain around Altos has only modest variations in elevation — a maximum elevation change of 103 m around an average of 184 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 175 m; within 80 km, significant variations in elevation — a maximum elevation change of 375 m.
The land around Altos is covered by trees (30%), shrubs (26%) and grassland (23%) within 3 km, trees (58%), shrubs (21%) and grassland (20%) within 16 km, and trees (42%), shrubs (32%) and grassland (23%) 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 Altos (-5.0381°, -42.46°, elevation 192 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.