Warm
Average highs sit around 26°C, giving warm days by monthly-average standards.
December verdict
Rio Grande (Rio Grande do Sul), Brazil in December
Weather score72Very good
Very good for holiday weather
Average highs sit around 26°C, giving warm days by monthly-average standards. Sunshine averages 9h per day, so bright days are a strong part of the month. Rainfall averages 66mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
26°C
Rain
66mm
Sun
9h
Sea
22°C
Weather score
72
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 66mm, which is relatively low for holiday planning.
Bright
Sunshine averages 9h per day, so bright days are a strong part of the month.
Swimmable
Sea temperatures average 22°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Rio Grande (Rio Grande do Sul), Brazil with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December26°C average high
December sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
December66mm average rain
December is one of Rio Grande (Rio Grande do Sul)'s driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary, April to May, and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December9 hours average sun
December is one of Rio Grande (Rio Grande do Sul)'s sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJanuary and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December22°C average sea
December sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to March and December
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
Weather score
December72 weather score
December is one of Rio Grande (Rio Grande do Sul)'s best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to March and December
These months have the strongest weather score in the monthly averages.