Month guide · Krabi · Thailand
Krabi in September
What September is really like in Krabi: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: kallerna, CC BY-SA 3.0
Quick answer
September is a month many travellers avoid. Expect average highs of 31°C (88°F), lows of 24°C (75°F), about 23 rainy days and roughly 12.2 hours of daylight. Usually the wettest month; many smaller businesses on Koh Lanta close until the high season.
Key facts
- Average high / low
- 31°C (88°F) / 24°C (75°F)
- Rainy days
- About 23
- Daylight
- About 12.2 hours
- Sea temperature
- 29°C (84°F)
- Crowds
- Very quiet
- Hotel prices
- Lowest
Weather in September
September is the 9th-warmest month in Krabi: days average 31°C (88°F) against a yearly average high of 32°C (90°F), and nights fall to about 24°C (75°F). Rain falls on roughly 23 of its 30 days. Compared with August (32°C (90°F)), September is about as warm; by October highs stay near 31°C (88°F).
- Sunrise (15 September)
- About 06:14
- Sunset (15 September)
- About 18:24
- Daylight
- About 12.2 hours
- Sea
- 29°C (84°F)
Monsoon (May–August). Frequent showers with sunny breaks, rougher seas and fewer visitors; good-value hotel rates.
Crowds and prices
On a 1–5 scale, September rates 1 for crowds (the peak is January at 5) and 1 for hotel prices (highest in January). That makes September one of the better-value months to book.
Events in September
- Vegetarian Festival in Krabi Town (September or October)
Dates move from year to year. Check the organiser’s site before booking travel around an event.
What to do in September
With frequent rain, plan around indoor sights and keep outdoor time flexible.
Viewpoint · Noppharat Thara
Khao Ngon Nak (Dragon Crest) trail
Start before 7am to avoid the heat, carry at least two litres of water and avoid it after heavy rain, when it gets slippery.
- Time needed
- 3–4 hours
- Cost
- Low cost
- Active
- Views
- Nature
- Outdoors
Experience · Ao Thalane
Ao Thalane mangrove kayaking
North of Ao Nang, guided kayak trips paddle through mangrove forests and narrow channels between limestone cliffs, where you may see monkeys and kingfishers.
- Time needed
- Half a day
- Cost
- Mid-priced
- Kids
- Nature
- Active
- Outdoors
Experience · Railay
Rock climbing at Railay and Tonsai
Climb in the morning when walls are in shade, and choose a school with recent, well-maintained equipment.
- Time needed
- Half to full day
- Cost
- Mid-priced
- Active
- Outdoors
- Views
Nature · Ao Luek
Than Bok Khorani National Park
In Ao Luek district, this park protects mangroves, emerald pools fed by forest springs and caves such as Tham Phi Hua To, whose walls hold prehistoric paintings and are reached by kayak or boat through the mangroves.
- Time needed
- Half a day
- Cost
- Low cost
- Nature
- History
- Outdoors
- Kids
The sea averages 29°C (84°F) — warm enough to swim. Best beaches near Krabi.
What to pack
For highs near 31°C, lows near 24°C and 23 wet days: light, breathable clothes, a sun hat and high-factor sunscreen; a compact umbrella and waterproof shoes — rain is frequent; comfortable walking shoes.
Is September a good time to visit Krabi?
A month many travellers avoid, with a notable event on the calendar. If your dates are flexible, December–March are better overall. Compare every month.
Krabi in other months
Questions travellers ask
+Is September a good time to visit Krabi?
It is a month many travellers avoid. Usually the wettest month; many smaller businesses on Koh Lanta close until the high season.
+How warm is Krabi in September?
Average highs are around 31°C (88°F) and lows around 24°C (75°F).
+Does it rain a lot in Krabi in September?
Expect rain on about 23 days of the month, so pack for wet weather.