Climate averages 1991–2020

Passo Fundo weather
in December.

A warm, wet month: the 2nd warmest and the 11th driest of the year.

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

Average high 26.0°C Daytime mean, December
Average low 16.9°C Night-time mean, December
Rainfall 178 mm 15 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Passo Fundo · average highYear overview

December is a warm month in Passo Fundo: daytime highs average 26.0°C and nights cool to about 16.9°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 178 mm of rain on roughly 15 days, which makes December a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 54 min on an average December day.

The nearest other city in this atlas is Erechim (71 km away). In December its highs average 25.9°C, about as warm as Passo Fundo, with 185 mm of rain.

Among the 448 cities listed in Brazil, Passo Fundo ranks joint 392nd of 448 for the warmest December highs and joint 198th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Passo Fundo is 2.5°C cooler than that mean.

From December to January, average highs rise by 0.3°C to 26.3°C, and monthly rainfall falls from 178 mm to 175 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 51015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2500

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

Every month, side by side

Passo Fundo climate table

1991–2020
Monthly climate averages for Passo Fundo, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 26.3°C17.9°C17.9°C17516.413.714 h
February 25.7°C17.7°C17.7°C16815.313.113 h
March 24.8°C16.5°C16.5°C14513.312.312 h
April 22.6°C14.1°C14.1°C14210.611.411 h
May 19.0°C10.9°C10.9°C16510.210.711 h
June 17.5°C9.4°C9.4°C15010.210.410 h
July 17.1°C8.4°C8.4°C16610.410.511 h
August 19.3°C9.7°C9.7°C1179.311.111 h
September 20.6°C11.1°C11.1°C16511.511.912 h
October 22.7°C13.5°C13.5°C24014.412.713 h
November 24.3°C14.7°C14.7°C17412.413.513 h
December, selected 26.0°C16.9°C16.9°C17814.813.914 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

December in nearby cities

Distance from Passo Fundo

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 Passo Fundo) is explained once on the Passo Fundo year overview and on the Sources, method and limits page.