Middle of the wetter season · Weather & things to do
Krabi in September
The year's rain peaks now, with about 12.8 in (326 mm) falling in Krabi, alongside highs near 82°F (28°C) and lows of 78°F (26°C).
With a comfort score of 38/100 (12th of 12), it's one of the toughest months, held back mainly by rain.
- Avg high
- 82°F (28°C)
- Avg low
- 78°F (26°C)
- Rain
- 12.8 in (326 mm)
- Humidity
- 87%
- Cloud cover
- 90%
- Daylight
- ~12 h 03 min
- Comfort score
- 38/100 · Tough
What September feels like
Highs settle around 82°F (28°C), warm enough for short sleeves.
Nights stay warm too, with lows averaging 78°F (26°C).
Humidity averages 87%, so the air feels sticky and the heat feels stronger than the thermometer says.
It's a very wet month, with around 12.8 in (326 mm) of rain, so keep plans flexible and have indoor backups ready.
Expect plenty of overcast days, with cloud cover near 90%.
Plan around September
September is one of the lower-scoring months here; the best are February.
- Inside the wettest three-month stretch, August – October.
- Comfort holds steady from August (39 → 38/100).
- Our Bangkok to the Andaman route recommends Nov – Mar, so September falls outside its suggested window.
What to pack for September
- Light, breathable clotheshighs average 82°F
- Quick-dry fabrics87% average humidity
- Rain jacket and waterproof shoesfrequent rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Krabi in September
Wet days call for a roof: these picks favor sit-down and indoor stops, plus a few for drier spells.
Tew Lay Bar
Small Railay East bar with a tree platform over the water.
Why now A sit-down stop to wait out showers in a month with 12.8 in of rain.
Krabi Town Walking Street
Weekend night market with Thai street food and live music.
Emerald Pool
Clear spring-fed pool in lowland forest, about an hour inland.
Ruen Mai
Garden restaurant in Krabi Town serving southern Thai dishes.
Tiger Cave Temple
Hilltop temple reached by 1,260 steps, with views over Krabi's karsts.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Krabi in September: quick answers
Is September a good time to visit Krabi?
It's one of the tougher months here, scoring 38/100, held back mainly by rain. The best months are February. Expect highs of 82°F (28°C) and 12.8 in (326 mm) of rain. Our Bangkok to the Andaman route recommends Nov – Mar, so September is outside its suggested window.
How hot is Krabi in September?
Average highs are 82°F (28°C) and average lows 78°F (26°C), making it the 3rd-coldest month by daytime highs.
Does it rain a lot in Krabi in September?
Yes: about 12.8 in (326 mm) of rain falls across September on average, the wettest month of the year. The annual total is about 93.9 in (2384 mm).
What should I pack for Krabi in September?
Bring light, breathable clothes (highs average 82°F), quick-dry fabrics (87% average humidity), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Krabi in September?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.