Weather in Sintmārtena in septembris
Country-wide climate normals across 12 cities in Sintmārtena.
How Hot Is Sintmārtena in septembris?
Sintmārtena sees consistently hot September weather — average highs of 28°C, average lows of 27°C, with minimal regional differences. Whether you're in Lower Prince’s Quarter or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in Sintmārtena in septembris
Limited sunshine and short daylight define Sintmārtena's September: Lower Prince’s Quarter averages just 1.8h of direct sun, with the sun up between 6:00 am and 6:15 pm. The grey, overcast pattern is consistent across most of the country, with little regional variation in cloud cover.
Does It Rain In Sintmārtena In septembris?
Sintmārtena's September is wet across most regions: 144mm in Lower Prince’s Quarter across 16 days, with rain falling on most days of the month. Coastal and highland regions can see significantly more, while interior regions may stay slightly drier. Sunny stretches are brief and uncommon.
Is Sintmārtena Humid In septembris?
Saturated air defines Sintmārtena's September: humidity at 76% in Lower Prince’s Quarter, with the country as a whole feeling muggy and oppressive. The air practically drips after rain, and even shaded outdoor areas feel warm and clammy. Plan indoor time during the most humid afternoon hours.
Wind In Sintmārtena In septembris
Persistent breeze shapes Sintmārtena's September: 26 kph in Lower Prince’s Quarter, with consistent wind across the country. The conditions are ideal for sailing and other wind sports, but can be disruptive for fine outdoor work.
Cloud Cover In Sintmārtena In septembris
Cloudy skies dominate Sintmārtena in September — 73% cover in Lower Prince’s Quarter, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.