Rosário do Sul in Fall
In fall (March, April and May), Rosário do Sul sees average daytime highs around 25°C and overnight lows near 15°C, with 386 mm of rain over about 27 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 30°C in early March to 20°C by late May. The sky is clear or mostly clear about 39% of the time across fall, and the air most often feels dry.
Fall is Rosário do Sul's 2nd-best season to visit on our travel score. For the whole year in context, see Rosário do Sul's year-round climate.
- Avg daytime high
- 25°C
- 2nd-warmest season
- Avg overnight low
- 15°C
- Rainfall
- 386 mm
- 27 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.5
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Rosário do Sul in Fall
Over the season highs ease from about 30°C in early March to 20°C by late May.
A typical fall day in Rosário do Sul reaches about 25°C and drops to 15°C overnight. The warmest of the three months is March, the coolest May.
How fall really feels in Rosário do Sul
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Rosário do Sul 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 | 31° / 20° | 134 | 11.5 | 13.7 | 4.5 |
| Feb | 30° / 20° | 129 | 10.3 | 13.1 | 4.9 |
| Mar | 29° / 18° | 122 | 9 | 12.2 | 5.9 |
| Apr | 25° / 15° | 151 | 9.3 | 11.3 | 7.0 |
| May | 21° / 12° | 114 | 8.7 | 10.5 | 6.7 |
| Jun | 19° / 10° | 130 | 9.4 | 10.1 | 6.1 |
| Jul | 18° / 9° | 129 | 9.4 | 10.2 | 6.2 |
| Aug | 21° / 10° | 116 | 8.6 | 10.9 | 6.8 |
| Sep | 22° / 12° | 155 | 9.9 | 11.8 | 6.7 |
| Oct | 25° / 14° | 189 | 11 | 12.7 | 6.7 |
| Nov | 28° / 16° | 129 | 8.5 | 13.5 | 6.5 |
| Dec | 30° / 19° | 132 | 9.2 | 13.9 | 5.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 39% of the time across fall.
Chance of precipitation in Fall
Rosário do Sul gets around 386 mm of rain over 27 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 12 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 42 min in early March to 10 h 12 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 3.9 kWh/m².
Is fall a good time to visit Rosário do Sul?
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 Rosário do Sul for sightseeing.
What to pack for Rosário do Sul in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Rosário do Sul sees daytime highs around 25°C and nights near 15°C. Pack light clothes. Worth having: rain gear and sun protection. About 27 days see rain.
UV index in Rosário do Sul in Fall
Clear-sky midday UV across fall averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Rosário do Sul peaks around January 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).
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 | 13 | 10 | 7 | 4 | 3 | 4 | 5 | 7 | 7 | 11 | 12 |
| Level | Extreme | Extreme | Very high | Very high | Moderate | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 13 | Extreme |
| Mar | 10 | Very high |
| Apr | 7 | Very high |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 4 | Moderate |
| Aug | 5 | Moderate |
| Sep | 7 | Very high |
| Oct | 7 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is Rosário do Sul?
Rosário do Sul sits at 30.3°S, 54.9°W, 123 m above sea level, in Brazil. The nearest listed city is São Gabriel, 58 km away.
Topography around Rosário do Sul
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rosário do Sul.
Within 3 km, the terrain around Rosário do Sul has only modest variations in elevation — a maximum elevation change of 76 m around an average of 102 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 119 m; within 80 km, significant variations in elevation — a maximum elevation change of 306 m.
The land around Rosário do Sul is covered by trees (35%), grassland (25%) and artificial surfaces (20%) within 3 km, grassland (43%) and cropland (38%) within 16 km, and grassland (55%) and cropland (31%) 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 Rosário do Sul (-30.2583°, -54.9142°, elevation 123 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.