Weather in Srí Lanka in září
Country-wide climate normals across 15 cities in Srí Lanka.
How Hot Is Srí Lanka in září?
Srí Lanka sees consistently hot September weather — average highs of 29°C, average lows of 25°C, with minimal regional differences. Whether you're in Colombo or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in Srí Lanka in září
Dark, overcast days dominate Srí Lanka in September — Colombo sees just 1.3h 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 Srí Lanka In září?
Monsoon-like conditions dominate Srí Lanka's September: Colombo sees 228mm of rain across 22 days, similar nationwide. Heavy showers fall almost daily, often in dramatic afternoon downpours. Sunshine is brief between storms, and humidity stays high throughout the month.
Is Srí Lanka Humid In září?
Saturated air defines Srí Lanka's September: humidity at 80% in Colombo, 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 Srí Lanka In září
Srí Lanka sees consistent breezes in September — averaging 21 kph in Colombo, 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 Srí Lanka In září
Heavy overcast covers Srí Lanka in September: 76% cloud cover in Colombo, with similar grey conditions in most regions. Direct sun is rare, and the pattern is persistent across the country. Coastal and northern regions feel especially heavy.