São Luís de Montes Belos in Spring
In spring (September, October and November), São Luís de Montes Belos sees average daytime highs around 32°C and overnight lows near 21°C, with 321 mm of rain over about 44 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Over the season highs ease from about 34°C in early September to 29°C by late November. The sky is clear or mostly clear about 30% of the time across spring, and the air most often feels muggy.
Spring is São Luís de Montes Belos's weakest season of the year to visit on our travel score. For the whole year in context, see São Luís de Montes Belos's year-round climate.
- Avg daytime high
- 32°C
- warmest season of the year
- Avg overnight low
- 21°C
- Rainfall
- 321 mm
- 44 wet days
- Avg wind
- 7 km/h
- Travel score
- 3.4
- weakest season of the year
- Months
- Sep · Oct · Nov
Temperature in São Luís de Montes Belos in Spring
Over the season highs ease from about 34°C in early September to 29°C by late November.
A typical spring day in São Luís de Montes Belos reaches about 32°C and drops to 21°C overnight. The warmest of the three months is September, the coolest September.
How spring really feels in São Luís de Montes Belos
Once humidity and wind are folded in, spring brings about 71 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.
São Luís de Montes Belos 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 | 29° / 21° | 259 | 25 | 12.9 | 3.5 |
| Feb | 29° / 21° | 193 | 22 | 12.6 | 3.5 |
| Mar | 30° / 21° | 191 | 23.2 | 12.1 | 3.6 |
| Apr | 30° / 20° | 87 | 12.3 | 11.6 | 4.7 |
| May | 30° / 19° | 13 | 2.4 | 11.2 | 6.2 |
| Jun | 30° / 17° | 4 | 0.6 | 11 | 6.5 |
| Jul | 30° / 17° | 2 | 0.3 | 11.1 | 6.4 |
| Aug | 32° / 19° | 7 | 0.8 | 11.4 | 5.1 |
| Sep | 34° / 21° | 29 | 5.2 | 11.9 | 3.7 |
| Oct | 32° / 22° | 107 | 16.2 | 12.4 | 3.2 |
| Nov | 30° / 21° | 185 | 22.7 | 12.8 | 3.4 |
| Dec | 29° / 21° | 238 | 25.3 | 13 | 3.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 30% of the time across spring.
Chance of precipitation in Spring
São Luís de Montes Belos gets around 321 mm of rain over 44 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 7 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 42 min in early September to 12 h 54 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 5.9 kWh/m².
Hazard calendar for São Luís de Montes Belos
In spring, São Luís de Montes Belos overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
São Luís de Montes Belos's monsoon runs November–March, when most of the year's rain falls.
Is spring a good time to visit São Luís de Montes Belos?
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 São Luís de Montes Belos.
What to pack for São Luís de Montes Belos in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, São Luís de Montes Belos sees daytime highs around 32°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 44 days see rain.
UV index in São Luís de Montes Belos in Spring
Clear-sky midday UV across spring averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in São Luís de Montes Belos peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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) | 15 | 15 | 14 | 12 | 9 | 8 | 8 | 9 | 12 | 13 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 12 | Extreme |
| May | 9 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 9 | Very high |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in São Luís de Montes Belos 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 São Luís de Montes Belos is worst in September — around 21 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (June, 7 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) | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 11 | 21 | 13 | 7 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 8 | Good |
| Mar | 8 | Good |
| Apr | 8 | Good |
| May | 7 | Good |
| Jun | 7 | Good |
| Jul | 7 | Good |
| Aug | 11 | Good |
| Sep | 21 | Moderate |
| Oct | 13 | Moderate |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is São Luís de Montes Belos?
São Luís de Montes Belos sits at 16.5°S, 50.4°W, 579 m above sea level, in Brazil. The nearest listed city is Anicuns, 44 km away.
Topography around São Luís de Montes Belos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Luís de Montes Belos.
Within 3 km, the terrain around São Luís de Montes Belos has only modest variations in elevation — a maximum elevation change of 248 m around an average of 580 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 373 m; within 80 km, large variations in elevation — a maximum elevation change of 729 m.
The land around São Luís de Montes Belos is covered by grassland (39%), artificial surfaces (25%) and trees (21%) within 3 km, grassland (51%) and cropland (31%) within 16 km, and grassland (37%), cropland (37%) and trees (25%) 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 São Luís de Montes Belos (-16.525°, -50.3722°, elevation 579 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.