Climate averages 1991–2020

Rio do Sul weather
in March.

A warm, wet month: the 4th warmest and the joint 4th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 26.6°C Daytime mean, March

Average low 19.2°C Night-time mean, March

Rainfall 105 mm 15 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

March is a warm month in Rio do Sul: daytime highs average 26.6°C and nights cool to about 19.2°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 105 mm of rain on roughly 15 days, which makes March a wet month (the joint 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 16 min on an average March day.

The nearest other city in this atlas is Indaial (54 km away). In March its highs average 27.0°C, about as warm as Rio do Sul, with 148 mm of rain.

Among the 448 cities listed in Brazil, Rio do Sul ranks joint 340th of 448 for the warmest March highs and joint 56th of 448 for the driest March (rainfall, lowest first). The mean March high of those 448 cities is 27.9°C; Rio do Sul is 1.3°C cooler than that mean.

From March to April, average highs fall by 2.2°C to 24.4°C, and monthly rainfall falls from 105 mm to 82 mm.

The annual picture

March in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Rio do Sul climate table

1991–2020

Monthly climate averages for Rio do Sul, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	27.9°C20.0°C	20.0°C	184	20.3	13.614 h
February	27.8°C20.2°C	20.2°C	156	18.5	13.013 h
March, selected	26.6°C19.2°C	19.2°C	105	15.1	12.312 h
April	24.4°C16.7°C	16.7°C	82	9.3	11.511 h
May	21.0°C13.1°C	13.1°C	105	9.2	10.811 h
June	19.5°C11.4°C	11.4°C	111	9.7	10.510 h
July	19.2°C10.5°C	10.5°C	99	9.8	10.611 h
August	20.9°C11.8°C	11.8°C	94	9.3	11.211 h
September	22.1°C13.8°C	13.8°C	151	12.4	11.912 h
October	23.8°C15.9°C	15.9°C	150	15.1	12.713 h
November	25.3°C17.1°C	17.1°C	121	14.7	13.413 h
December	27.3°C19.0°C	19.0°C	148	16.4	13.814 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

March in nearby cities

Distance from Rio do Sul

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Rio do Sul) is explained once on the Rio do Sul year overview and on the Sources, method and limits page.