Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
December verdict
Mixed for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 4.6h per day, so this is not one of the brighter months. Rainfall averages 198mm, so showers are a real planning factor.
Monthly averages
Temp
27°C
Rain
198mm
Sun
4.6h
Sea
25°C
Weather score
54
Mixed
Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Wet
Rainfall averages 198mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.6h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 25°C, which can work for swimming but may feel fresh.
Map
Compare Sao Paulo, Sao Paulo, Brazil with nearby places by weather score, rain, sun, temperature, and swim conditions.
December27°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.
December198mm average rain
December is wetter than Sao Paulo's yearly average, so flexible plans matter more.
Driest monthsApril to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December4.6 hours average sun
December is close to Sao Paulo's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsJanuary to August and November
This stretch has the strongest sunshine in the monthly averages.
December25°C average sea
December sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to April
Sea temperatures are usually near 27°C in this stretch, so swimming comfort is at its strongest.
December54 weather score
December scores below Sao Paulo's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to May and November
These months have the strongest weather score in the monthly averages.