Thailand
Koh Lanta in September
🌧️ Southwest monsoonWarm, humid and very wet. Watch for flood risk.
🎒 Pack: compact umbrella or rain jacket · quick-dry fabrics · waterproof sandals
Why September scores 7.3What goes into the score
How it works- Weather comfort5.6
- ✓Warm (28.8°C highs / 27.9°C lows)
- !Very humid/sticky (dew point 24.5°C)
- !Wet: ~328 mm rain, ~10 heavy-rain days
- Air quality9.9
- ✓Good (within WHO guideline) (PM2.5 ~6 µg/m³)
- Seasonal hazards8.5
- !Flood: ~10 heavy-rain days (≥10 mm) in an average September
- Safety baseline8.0
- ·Normal precautions
| Sep | Feb | |
|---|---|---|
| Score | 7.3 Good | 8.6 Excellent |
| Season | 🌧️ Southwest monsoon | ☀️ Dry season |
| High / low | 29° / 28° | 29° / 27° |
| Rain | 328 mm | 32 mm |
| Humidity | dew pt 25° | dew pt 24° |
| PM2.5 | 6 µg/m³ | 14 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast).
Holidays & crowdsSeptember 2027
No long holidaysNo long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.
No national public holidays in Thailand this month.
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Explore Koh LantaEvents, sights, food & souvenirs
Check event dates locallyKoh Lanta is a laid-back island in Krabi province with long west-coast beaches, a historic old town and access to nearby islands for snorkelling and diving.
No major events on our calendar for September.
Coming up later
Loy KrathongDate variesFull moon of the 12th Thai lunar month, usually November; date moves each year
Krathong are floated on the sea under the full moon.
Why go: Early in the season, when some resorts are only just reopening.
Where: Beaches and Old Town
Songkran (Thai New Year)Every year13-15 April every year
Thai New Year water festival.
Why go: Falls near the end of high season, so many resorts are still open.
Where: Saladan and main roads
Loy Rua (Urak Lawoi boat-floating ceremony)Date variesTwice a year at full moons of the 6th and 11th lunar months, roughly June and November; dates move each year
The Urak Lawoi sea people float a small boat to carry away bad luck, with music and dancing.
Why go: A community ritual; watch respectfully and ask before photographing.
Where: Sang Ka U village and Urak Lawoi communities
Mu Ko Lanta National Park
The island's southern tip, with a lighthouse, short trail and rocky beach.
💡 Watch for monkeys around food.
Lanta Old Town
A traditional east-coast town of wooden stilt houses, with Thai, Chinese and Muslim heritage.
Koh Rok
Twin islands with white sand and good snorkelling, reached by speedboat.
💡 Usually closed to visitors during the monsoon, roughly mid-May to mid-October.
Four Islands trip
A boat tour including Koh Mook's Emerald Cave, swum into through a sea tunnel.
💡 Seas are calmest from November to April.
Hin Daeng and Hin Muang
Deep pinnacle dive sites known for manta rays and occasional whale sharks.
Long Beach (Phra Ae)
A long, easy-going sandy beach on the west coast with sunset views.
Fresh seafood
Grilled fish, prawns and crab.
💡 Beach restaurants and Old Town seafood houses
Southern Thai curries
Spicy turmeric-rich curries typical of the south.
💡 Local eateries
Roti
Griddled flatbread with curry or sweet fillings.
💡 Muslim food stalls
Massaman curry
A mild, rich curry with Muslim-Thai roots.
💡 Local restaurants
Batik
Hand-painted batik clothing and cloth.
💡 Shops in Saladan and Old Town
Cashew nuts
Southern Thai roasted cashews.
💡 Local shops
Airport transfer Kiwitaxi
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