Weather in Trincomalee in September
Trincomalee, Sri Lanka averages a high of 33.2°C (91.8°F) and low of 25.8°C (78.4°F) in September, with 11 rain days and 10.5 hours of daily sunshine. Travel score: 76.5/100 (Good). The best time to visit Trincomalee is March.
High
33°C92°F
Low
26°C78°F
🌧️
11
rain days
☀️
10.5
hrs/day sunshine
💧
70%
humidity
77— Good
September in Trincomalee is hot and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Trincomalee?
How much does it rain in Trincomalee in September?
Trincomalee receives an average of 71.4mm of rainfall across 11 rainy days in September. The annual total is 1369.8mm.
What should I pack for Trincomalee in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 33°C
🧢
Sun hat or cap
Protection from intense sun
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Sri Lanka in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31