Warm
Average highs sit around 32°C, giving warm days by monthly-average standards.
September verdict
Sint Maarten in September
Weather score62Good
Good for holiday weather
Average highs sit around 32°C, giving warm days by monthly-average standards. Sunshine averages 7.7h per day, enough for a balanced month. Rainfall averages 129mm, so some wet days are possible.
September weather
Monthly averages
Temp
32°C
Rain
129mm
Sun
7.7h
Sea
29°C
Weather score
62
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 129mm, so some wet days are possible.
Some sun
Sunshine averages 7.7h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Sint Maarten with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September32°C average high
September is one of Sint Maarten's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to November
This stretch sets the upper range for average daytime heat.
Rain
September129mm average rain
September is one of Sint Maarten's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to April and June
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September7.7 hours average sun
September is close to Sint Maarten's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
Sea temperature
September29°C average sea
September is one of Sint Maarten's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to November
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
September62 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to June and December
These months have the strongest weather score in the monthly averages.
