Weather in Koh Lanta in September
Koh Lanta, Thailand averages a high of 27.9°C (82.2°F) and low of 25°C (77°F) in September, with 25 rain days and 9 hours of daily sunshine. Travel score: 65.3/100 (Good). The best time to visit Koh Lanta is February.
High
28°C82°F
Low
25°C77°F
🌧️
25
rain days
☀️
9
hrs/day sunshine
💧
84%
humidity
65— Good
September in Koh Lanta is warm and very rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Koh Lanta?
How much does it rain in Koh Lanta in September?
Koh Lanta receives an average of 300.8mm of rainfall across 25 rainy days in September. The annual total is 2237.4mm.
What should I pack for Koh Lanta in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 28°C
🧥
Waterproof jacket
Frequent rain expected (25 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
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Data based on 1994–2024 averages · Last updated: 2024-12-31