Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
December verdict
Kourou, French Guiana in December
Weather score52Mixed
Mixed for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 5.3h per day, enough for a balanced month. Rainfall averages 274mm, so showers are a real planning factor.
December weather
Monthly averages
Temp
30°C
Rain
274mm
Sun
5.3h
Sea
28°C
Weather score
52
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 274mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.3h per day, enough for a balanced month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Kourou, French Guiana with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December30°C average high
December is on the cooler side of Kourou's year, useful if you prefer less intense daytime heat.
Warmest monthsAugust to November
This stretch sets the upper range for average daytime heat.
Rain
December274mm average rain
December sits near Kourou's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJuly to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December5.3 hours average sun
December is below Kourou's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsAugust to November
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December28°C average sea
December is part of a consistently warm sea-temperature pattern, so swimming comfort changes little through the year.
Warmest seaAll year
Sea temperatures stay warm enough for easy swimming through the year.
Weather score
December52 weather score
December scores below Kourou's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsAugust to October
These months have the strongest weather score in the monthly averages.