Rio Branco do Sul in Fall

In fall (March, April and May), Rio Branco do Sul sees average daytime highs around 23°C and overnight lows near 15°C, with 282 mm of rain over about 36 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.

Over the season highs ease from about 26°C in early March to 19°C by late May. The sky is clear or mostly clear about 22% of the time across fall, and the air most often feels humid.

Fall is Rio Branco do Sul's 2nd-best season to visit on our travel score. For the whole year in context, see Rio Branco do Sul's year-round climate.

Avg daytime high: 23°C; 2nd-warmest season
Avg overnight low: 15°C
Rainfall: 282 mm; 36 wet days
Avg wind: 8 km/h
Travel score: 6.3; 2nd-best season
Months: Mar · Apr · May

← Summer Rio Branco do Sul year-round climate Winter →

Spring Summer Fall Winter

Temperature in Rio Branco do Sul in Fall

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 26°C in early March to 19°C by late May.

A typical fall day in Rio Branco do Sul reaches about 23°C and drops to 15°C overnight. The warmest of the three months is March, the coolest May.

Rio Branco 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	26° / 18°	233	23	13.4	4.6
Feb	26° / 18°	192	20.1	12.9	4.7
Mar	25° / 17°	126	17.5	12.2	5.6
Apr	23° / 15°	70	9.6	11.4	6.8
May	20° / 12°	86	8.8	10.8	6.4
Jun	19° / 11°	94	8.5	10.5	6.3
Jul	19° / 10°	85	7.4	10.6	6.5
Aug	21° / 11°	72	7.2	11.1	7.0
Sep	22° / 12°	124	10.5	11.8	6.4
Oct	23° / 14°	125	14	12.6	5.9
Nov	24° / 15°	123	14.9	13.2	5.9
Dec	25° / 17°	165	18.7	13.5	5.2

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time across fall.

Chance of precipitation in Fall

Any precipitation

Rio Branco do Sul gets around 282 mm of rain over 36 wet days across fall. The line is the day-by-day chance of measurable precipitation.

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

Most of fall feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

Wind in Fall

Winds average 8 km/h across fall.

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 36 min in early March to 10 h 36 min by late May. The lit band spans sunrise to sunset each day.

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 3.9 kWh/m².

Planning a trip in fall

Is fall a good time to visit Rio Branco 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.

6.3

Sightseeing

2nd-best month of the year

4.7

Beach & pool

1st-best month of the year

fall is a reasonable time to visit Rio Branco do Sul for sightseeing.

What to pack for Rio Branco do Sul in Fall

From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In fall, Rio Branco do Sul sees daytime highs around 23°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 36 days see rain.

rain gearlight clothessun protection

UV index in Rio Branco do Sul in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall 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 Rio Branco do Sul peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (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	12	9	6	6	5	7	7	11	13	14
Level	Extreme	Extreme	Extreme	Very high	High	High	High	High	High	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	15	Extreme
Mar	12	Extreme
Apr	9	Very high
May	6	High
Jun	6	High
Jul	5	High
Aug	7	High
Sep	7	High
Oct	11	Extreme
Nov	13	Extreme
Dec	14	Extreme

Air quality in Rio Branco do Sul in Fall

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.

Air quality in Rio Branco do Sul is worst in September — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 10 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)	10	10	11	12	14	14	16	17	19	13	11	10
Level	Good	Good	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	10	Good
Feb	10	Good
Mar	11	Good
Apr	12	Good
May	14	Moderate
Jun	14	Moderate
Jul	16	Moderate
Aug	17	Moderate
Sep	19	Moderate
Oct	13	Moderate
Nov	11	Good
Dec	10	Good

Location & terrain

Where is Rio Branco do Sul?

Rio Branco do Sul sits at 25.2°S, 49.3°W, 901 m above sea level, in Brazil. The nearest listed city is Itaperuçu, 5.0 km away.

Topography around Rio Branco do Sul

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rio Branco do Sul.

Within 3 km, the terrain around Rio Branco do Sul has significant variations in elevation — a maximum elevation change of 406 m around an average of 952 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 693 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,807 m.

The land around Rio Branco do Sul is covered by trees (61%) within 3 km, trees (82%) within 16 km, and trees (73%) within 80 km.

3 km

406 m

trees 61%

16 km

693 m

trees 82%

80 km

1,807 m

trees 73%

treesgrasslandcroplandartificial surfacesbare terrainwater

← Summer Rio Branco do Sul year-round climate Winter →

Fall weather nearby: Itaperuçu 5.0 km · Colombo 14 km · Almirante Tamandaré 15 km · Campo Magro 24 km · Curitiba 27 km · Campina Grande do Sul 29 km · Quatro Barras 31 km · Pinhais 31 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 Rio Branco do Sul (-25.19°, -49.3142°, elevation 901 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.