Thời tiết tại St. Barthélemy vào tháng Tháng 9
Chuẩn khí hậu toàn quốc qua 13 thành phố tại St. Barthélemy.
How Hot Is St. Barthélemy in Tháng 9?
St. Barthélemy 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 St. Barthélemy in Tháng 9
St. Barthélemy sees limited sun in September: just 1.8h a day in Gustavia, with heavy cloud cover common across most regions. Daylight runs from 6:00 am to 6:10 pm, but persistent grey skies and overcast stretches mean direct sunlight is genuinely scarce. Many days pass without any prolonged sunny spells.
Does It Rain In St. Barthélemy In Tháng 9?
St. Barthélemy's September is wet across most regions: 140mm in Gustavia across 17 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 St. Barthélemy Humid In Tháng 9?
St. Barthélemy is enveloped in tropical-thick humidity through September: Gustavia averages 76%, and most of the country tracks similarly. The constant moisture makes warm temperatures feel substantially hotter, and even nights bring limited cooling. Light cotton clothing is essential.
Wind In St. Barthélemy In Tháng 9
St. Barthélemy 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 St. Barthélemy In Tháng 9
Cloudy skies dominate St. Barthélemy in September — 73% cover in Gustavia, 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.