Weather in St Kitts och Nevis in september
Country-wide climate normals across 15 cities in St Kitts och Nevis.
How Hot Is St Kitts och Nevis in september?
St Kitts och Nevis sees consistently hot September weather — average highs of 29°C, average lows of 27°C, with minimal regional differences. Whether you're in Basseterre or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in St Kitts och Nevis in september
Dark, overcast days dominate St Kitts och Nevis in September — Basseterre sees just 1.2h of sun a day, and the pattern is similar across most regions. Cloud cover is heavy and persistent, with even the brighter regions struggling to escape the gloom for long.
Does It Rain In St Kitts och Nevis In september?
Heavy rain shapes St Kitts och Nevis's September: Basseterre averages 132mm across 19 days, and most regions of the country see similar persistent wet conditions. Long sunny stretches are rare. Expect rain on roughly two out of every three days.
Is St Kitts och Nevis Humid In september?
St Kitts och Nevis is enveloped in tropical-thick humidity through September: Basseterre 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 Kitts och Nevis In september
Persistent breeze shapes St Kitts och Nevis's September: 25 kph in Basseterre, 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 St Kitts och Nevis In september
St Kitts och Nevis's September is dominated by overcast skies: Basseterre averages 77% cloud cover, with similar grey persistence across the country. Days feel dim and soft-lit, with little break in the cloud deck.