Koh Lanta weather in September
Warm and pleasant, with frequent heavy rain. Average highs of 28°C and lows of 25°C, with around 25 rainy days expected throughout the month.
While September isn't our top-rated month for Koh Lanta, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
28°C
Average low
25°C
Rainy days
25 days
Best months to visit
February
What to do in Koh Lanta in September
Whatever the weather, Koh Lanta rewards curious visitors. Here are some of the best ways to spend your time:
Visit iconic Koh Lanta attractions and temples
Explore local markets and traditional neighborhoods
Experience regional cuisine and dining specialties
Trek or hike nearby mountains or natural features
Engage with local culture and minority communities
Photography opportunities at scenic viewpoints
What to pack for September
Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.
Browse other months
January
30C
Hot and humid, with some rainy days.
Recommended
February
31C
Hot and humid, with occasional showers.
March
32C
Hot and humid, with occasional showers.
April
31C
Hot and humid, with frequent heavy rain.
May
30C
Hot and humid, with frequent heavy rain.
June
29C
Warm and pleasant, with frequent heavy rain.
July
29C
Warm and pleasant, with frequent heavy rain.
August
29C
Warm and pleasant, with frequent heavy rain.
September (you are here)
28C
Warm and pleasant, with frequent heavy rain.
October
29C
Warm and pleasant, with frequent heavy rain.
November
29C
Warm and pleasant, with frequent heavy rain.
December
29C
Warm and pleasant, with regular rainfall.
Book your September trip to Koh Lanta
Find hotels, tours and experiences for the perfect escape.
