Rorainópolis in Fall
In fall (September, October and November), Rorainópolis sees average daytime highs around 32°C and overnight lows near 23°C, with 436 mm of rain over about 60 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across fall, daytime highs hold fairly steady around 32°C. The sky is clear or mostly clear about 17% of the time across fall, and the air most often feels oppressive.
Fall is Rorainópolis's 3rd-best season to visit on our travel score. Rorainópolis has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Rorainópolis's year-round climate.
- Avg daytime high
- 32°C
- warmest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 436 mm
- 60 wet days
- Avg wind
- 4 km/h
- Travel score
- 3.1
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Rorainópolis in Fall
Across fall, daytime highs hold fairly steady around 32°C.
A typical fall day in Rorainópolis reaches about 32°C and drops to 23°C overnight. The warmest of the three months is October, the coolest September.
How fall really feels in Rorainópolis
Once humidity and wind are folded in, fall brings about 91 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.
Rorainópolis weather by month
How the three fall 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 | 31° / 23° | 117 | 15 | 12 | 3.8 |
| Feb | 31° / 24° | 108 | 13.2 | 12 | 3.7 |
| Mar | 31° / 24° | 184 | 18.1 | 12 | 3.5 |
| Apr | 30° / 23° | 348 | 24.7 | 12 | 3.1 |
| May | 29° / 23° | 456 | 29.4 | 12 | 2.9 |
| Jun | 29° / 23° | 341 | 28.4 | 12.1 | 2.9 |
| Jul | 29° / 22° | 248 | 28.2 | 12 | 3.1 |
| Aug | 30° / 23° | 185 | 25.1 | 12 | 3.2 |
| Sep | 32° / 23° | 147 | 20.6 | 12 | 3.1 |
| Oct | 32° / 23° | 129 | 18.5 | 12 | 3.2 |
| Nov | 31° / 23° | 161 | 20.4 | 12 | 3.1 |
| Dec | 31° / 23° | 161 | 19.9 | 11.9 | 3.4 |
Cloud cover in Fall
The sky is clear or mostly clear about 17% of the time across fall.
Chance of precipitation in Fall
Rorainópolis gets around 436 mm of rain over 60 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 4 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 hours in early September to 11 h 54 min by late November. 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 5.2 kWh/m².
Hazard calendar for Rorainópolis
None of Rorainópolis's seasonal hazards peak in fall. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Rorainópolis's rainy season runs April–July, when most of the year's rain falls.
Is fall a good time to visit Rorainópolis?
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 weaker month for outdoor sightseeing in Rorainópolis.
What to pack for Rorainópolis in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Rorainópolis sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 60 days see rain.
UV index in Rorainópolis in Fall
Clear-sky midday UV across fall 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 Rorainópolis peaks around March 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 16 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) | 14 | 14 | 15 | 15 | 12 | 11 | 11 | 11 | 12 | 11 | 10 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 15 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 10 | Very high |
| Dec | 11 | Extreme |
Air quality in Rorainópolis 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 Rorainópolis is worst in March — around 33 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (July, 9 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) | 20 | 24 | 33 | 25 | 11 | 9 | 9 | 11 | 12 | 14 | 16 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 20 | Moderate |
| Feb | 24 | Moderate |
| Mar | 33 | Moderate |
| Apr | 25 | Moderate |
| May | 11 | Good |
| Jun | 9 | Good |
| Jul | 9 | Good |
| Aug | 11 | Good |
| Sep | 12 | Good |
| Oct | 14 | Moderate |
| Nov | 16 | Moderate |
| Dec | 14 | Moderate |
Where is Rorainópolis?
Rorainópolis sits at 0.9°N, 60.4°W, 82 m above sea level, in Brazil. The nearest listed city is Caracaraí, 125 km away.
Topography around Rorainópolis
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rorainópolis.
Within 3 km, the terrain around Rorainópolis has only modest variations in elevation — a maximum elevation change of 49 m around an average of 87 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 226 m; within 80 km, large variations in elevation — a maximum elevation change of 858 m.
The land around Rorainópolis is covered by grassland (46%) and trees (45%) within 3 km, trees (66%) and grassland (34%) within 16 km, and trees (81%) 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 Rorainópolis (0.9461°, -60.4181°, elevation 82 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.