Weather in Antigua dan Barbuda in September
Country-wide climate normals across 15 cities in Antigua dan Barbuda.
How Hot Is Antigua dan Barbuda in September?
Antigua dan Barbuda sees consistently hot September weather — average highs of 29°C, average lows of 27°C, with minimal regional differences. Whether you're in Saint John’s or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in Antigua dan Barbuda in September
Limited sunshine and short daylight define Antigua dan Barbuda's September: Saint John’s averages just 1.1h of direct sun, with the sun up between 5:55 am and 6:10 pm. The grey, overcast pattern is consistent across most of the country, with little regional variation in cloud cover.
Does It Rain In Antigua dan Barbuda In September?
Wet conditions dominate Antigua dan Barbuda in September — Saint John’s sees 126mm of rain across 20 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 Antigua dan Barbuda Humid In September?
Antigua dan Barbuda is enveloped in tropical-thick humidity through September: Saint John’s averages 75%, 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 Antigua dan Barbuda In September
Antigua dan Barbuda sees consistent breezes in September — averaging 25 kph in Saint John’s, 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 Antigua dan Barbuda In September
Antigua dan Barbuda's September is dominated by overcast skies: Saint John’s averages 77% cloud cover, with similar grey persistence across the country. Days feel dim and soft-lit, with little break in the cloud deck.