Rosana in Spring
In spring (September, October and November), Rosana sees average daytime highs around 30°C and overnight lows near 21°C, with 346 mm of rain over about 34 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 29°C in early September to 31°C by late November. The sky is clear or mostly clear about 39% of the time across spring, and the air most often feels muggy.
Spring is Rosana's 3rd-best season to visit on our travel score. For the whole year in context, see Rosana's year-round climate.
- Avg daytime high
- 30°C
- 2nd-warmest season
- Avg overnight low
- 21°C
- Rainfall
- 346 mm
- 34 wet days
- Avg wind
- 10 km/h
- Travel score
- 5.0
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Rosana in Spring
Over the season highs climb from about 29°C in early September to 31°C by late November.
A typical spring day in Rosana reaches about 30°C and drops to 21°C overnight. The warmest of the three months is November, the coolest September.
How spring really feels in Rosana
Once humidity and wind are folded in, spring brings about 30 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.
Rosana 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 | 31° / 24° | 188 | 19.7 | 13.2 | 3.4 |
| Feb | 31° / 23° | 160 | 17.6 | 12.8 | 3.5 |
| Mar | 31° / 23° | 127 | 15.1 | 12.2 | 4.2 |
| Apr | 29° / 21° | 69 | 7.6 | 11.5 | 5.9 |
| May | 26° / 18° | 89 | 7.6 | 10.9 | 7.3 |
| Jun | 25° / 17° | 59 | 6.1 | 10.6 | 7.8 |
| Jul | 25° / 16° | 43 | 4.9 | 10.8 | 8.0 |
| Aug | 27° / 17° | 43 | 4.4 | 11.2 | 7.7 |
| Sep | 29° / 19° | 85 | 7.9 | 11.9 | 6.0 |
| Oct | 30° / 21° | 130 | 13.2 | 12.5 | 4.6 |
| Nov | 31° / 22° | 131 | 13.3 | 13.1 | 4.3 |
| Dec | 31° / 23° | 165 | 17.2 | 13.4 | 3.7 |
Cloud cover in Spring
The sky is clear or mostly clear about 39% of the time across spring.
Chance of precipitation in Spring
Rosana gets around 346 mm of rain over 34 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 10 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 5.7 kWh/m².
Hazard calendar for Rosana
In spring, Rosana overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Rosana's rainy season runs May–May, when most of the year's rain falls.
Is spring a good time to visit Rosana?
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 Rosana for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Rosana in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Rosana sees daytime highs around 30°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 34 days see rain.
UV index in Rosana in Spring
Clear-sky midday UV across spring averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Rosana peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 14 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 14 | 13 | 10 | 7 | 6 | 6 | 8 | 3 | 11 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | Very high | High | High | Very high | Moderate | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 7 | Very high |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 3 | Moderate |
| Oct | 11 | Extreme |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in Rosana 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 Rosana is worst in September — around 35 µg/m³ PM2.5 (moderate), about 6.4× the cleanest month (March, 5 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 | 7 | 5 | 6 | 7 | 7 | 7 | 11 | 35 | 13 | 9 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 7 | Good |
| Mar | 5 | Good |
| Apr | 6 | Good |
| May | 7 | Good |
| Jun | 7 | Good |
| Jul | 7 | Good |
| Aug | 11 | Good |
| Sep | 35 | Moderate |
| Oct | 13 | Moderate |
| Nov | 9 | Good |
| Dec | 6 | Good |
Where is Rosana?
Rosana sits at 22.6°S, 53.1°W, 285 m above sea level, in Brazil. The nearest listed city is Taquarussu, 32 km away.
Topography around Rosana
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rosana.
Within 3 km, the terrain around Rosana has only modest variations in elevation — a maximum elevation change of 73 m around an average of 251 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 178 m; within 80 km, significant variations in elevation — a maximum elevation change of 394 m.
The land around Rosana is covered by grassland (52%), trees (21%) and water (21%) within 3 km, grassland (51%) within 16 km, and grassland (42%) and cropland (35%) 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 Rosana (-22.5797°, -53.0592°, elevation 285 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.