Discover Kok Kood: a hidden gem in Thailand
Discover the hidden gem of Thailand - Koh Kood! Explore stunning beaches, waterfalls and eco-friendly resorts while enjoying a peaceful atmosphere away from the crowds.
Ko Lanta Weather in September
Ko Lanta in September sees high temperatures, with highs around 30°C (86°F) and overnight lows of 26°C (79°F). With the rainy season in full effect, expect around 327 mm (13 in) of rainfall and regular showers throughout the month.
Rainfall in Ko Lanta in September
As part of the rainy season, Ko Lanta sees around 22 days of rain in September, with an average of 327 mm (13 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Ko Lanta in September
Daytime temperatures in Ko Lanta reach 30°C (86°F) in September, dropping to 26°C (79°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 26°C (79°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.
Sunshine in Ko Lanta in September
The city usually sees around 108 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).September in Ko Lanta has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Ko Lanta Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
72%
Precipitation
327 mm (13 in)
Rainy days
22 days
Humidity
85%
Sunshine
108 hours
Percentage Sunshine
Ko Lanta Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ko Lanta - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ko Lanta typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Ko Lanta in September
Browse day-by-day weather records for Ko Lanta spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ko Lanta historical weather extremes in September
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Ko Lanta.
- The warmest day in September was on September 4, 2013, with a maximum of 35°C (95°F).
- On September 28, 1979, Ko Lanta saw its coldest September day with temperatures maxing out at 25°C (77°F).
- The lowest overnight temperature recorded in September was 18°C (64°F) (September 29, 1993).
- Peak precipitation in September occurred on September 5, 2008, when 224 mm (8.8 in) of precipitation was measured.
Best Places in Thailand in September
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Ko Lanta in September
Warm but pleasant conditions in Ko Lanta in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Ko Lanta in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Ko Lanta 3-Day Forecast
More climate data for Ko Lanta
Temperature Rainfall Sunshine Humidity
See the full Ko Lanta climate overview or explore weather in Thailand.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bangkok
34°C (93°F) Chiang Mai33°C (91°F) Jomtien Beach32°C (90°F) Hua Hin32°C (90°F) Ao Nang Beach30°C (86°F) Koh Samui30°C (86°F) Ko Lanta30°C (86°F) Patong Beach29°C (84°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Discover Kok Kood: a hidden gem in Thailand
Warm Days, Cool Nights: 8 Destinations With the Perfect Day-Night Temperature
Prefer warm sunny days but cool evenings? Compare eight destinations with daytime temperatures of around 25–30°C, cooler nights, low rainfall and plenty of sunshine.
Where to Travel in July and August: Mexico, Thailand, Indonesia or Somewhere Else?
Compare July and August weather in Mexico, Thailand, Indonesia, Zanzibar and Sri Lanka, using historical climate data for temperature, rainfall and sunshine.
Discover Thailand: An Ultimate Guide for Yogis
Explore Thailand's best for yogis: serene retreats, spiritual growth, and adventure. Dive into yoga, meditation, and nature's tranquility for an unforgettable journey.