Weather in سان بارتليمي in سبتمبر
Country-wide climate normals across 13 cities in سان بارتليمي.
How Hot Is سان بارتليمي in سبتمبر?
سان بارتليمي sees consistently hot September weather — average highs of 29°C, average lows of 27°C, with minimal regional differences. Whether you're in Gustavia or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in سان بارتليمي in سبتمبر
Persistent cloud and grey skies define سان بارتليمي's September: about 1.8h of sun a day in Gustavia. Daylight is in short supply too, running from 6:00 am to 6:10 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In سان بارتليمي In سبتمبر?
Wet conditions dominate سان بارتليمي in September — Gustavia sees 140mm of rain across 17 days, with rain a near-daily feature in most regions. Some areas see considerably more, particularly mountain-facing or windward coasts. Plan around frequent showers and pack reliable rainwear.
Is سان بارتليمي Humid In سبتمبر?
Saturated air defines سان بارتليمي's September: humidity at 76% in Gustavia, 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 سان بارتليمي In سبتمبر
سان بارتليمي sees consistent breezes in September — averaging 27 kph in Gustavia, with similar windy conditions across most regions. Coastal and exposed inland cities often see considerably more, especially in the afternoons. Wind-sensitive plans should factor this in.
Cloud Cover In سان بارتليمي In سبتمبر
سان بارتليمي sees mostly cloudy weather through September: Gustavia averages 73% cloud cover, and the pattern repeats across the country. Bright sun is uncommon; expect a grey, soft-lit feel to most days.