São Luís de Montes Belos in Fall
In fall (March, April and May), São Luís de Montes Belos sees average daytime highs around 30°C and overnight lows near 20°C, with 291 mm of rain over about 38 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Across fall, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 38% of the time across fall, and the air most often feels muggy.
Fall is São Luís de Montes Belos's 2nd-best season 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
- 30°C
- 3rd-warmest season
- Avg overnight low
- 20°C
- Rainfall
- 291 mm
- 38 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.8
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in São Luís de Montes Belos in Fall
Across fall, daytime highs hold fairly steady around 30°C.
A typical fall day in São Luís de Montes Belos reaches about 30°C and drops to 20°C overnight. The warmest of the three months is April, the coolest May.
How fall really feels in São Luís de Montes Belos
Once humidity and wind are folded in, fall brings about 13 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
São Luís de Montes Belos weather by month
How the three fall months (March, April and May) 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 Fall
The sky is clear or mostly clear about 38% of the time across fall.
Chance of precipitation in Fall
São Luís de Montes Belos gets around 291 mm of rain over 38 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 6 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 18 min in early March to 11 h 06 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 5.1 kWh/m².
Hazard calendar for São Luís de Montes Belos
In fall, 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 fall a good time to visit São Luís de Montes Belos?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit São Luís de Montes Belos for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for São Luís de Montes Belos in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, São Luís de Montes Belos sees daytime highs around 30°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 38 days see rain.
UV index in São Luís de Montes Belos in Fall
Clear-sky midday UV across fall 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 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 Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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.