Mild
Average highs are around 22°C, so days are mild rather than hot.
September verdict
Monaco in September
Weather score64Good
Good for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 7.1h per day, enough for a balanced month. Rainfall averages 66mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
22°C
Rain
66mm
Sun
7.1h
Sea
0°C
Weather score
64
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 66mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.1h per day, enough for a balanced month.
Cool sea
Sea temperatures average 0°C, so the water can feel cool.
Map
Weather map
Compare Monaco with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September22°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September66mm average rain
September sits near Monaco's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJune to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September7.1 hours average sun
September sits close to Monaco's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September0°C average sea
September is close to Monaco's usual sea temperature, with limited seasonal change in the water.
Warmest seaAll year
Sea temperatures stay warm enough for easy swimming through the year.
Weather score
September64 weather score
September sits close to Monaco's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
