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Khao Lak Weather in September
During September, Khao Lak experiences high daytime temperatures of 29°C (84°F) and cooler nights around 25°C (77°F). As the wettest month of the year, expect frequent rainfall.
Rainfall in Khao Lak in September
Khao Lak is in the rainy season in September, with rain on around 24 days and an average of 398 mm (16 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.
Temperature in Khao Lak in September
Daytime highs in Khao Lak in September reach 29°C (84°F), with nights around 25°C (77°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Khao Lak in September
The area sees fewer sunny days, with a projection of about 0 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.September in Khao Lak has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Khao Lak Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Chance of Rain
78%
Precipitation
398 mm (16 in)
Rainy days
24 days
Sunshine
0 hours *
Percentage Sunshine
*
* Data from: Ao Phang Nga Marine national park, Thailand (54 KM, 34 Miles).
Khao Lak Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Khao Lak - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Khao Lak typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°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 Khao Lak in September
Browse day-by-day weather records for Khao Lak spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Khao Lak historical weather extremes in September
Our historical data for Khao Lak spans 1976 to 2026, revealing these weather extremes.
- Khao Lak recorded its highest September temperature of 39°C (102°F) on September 1, 2010.
- The lowest daytime temperature in September was 23°C (73°F), recorded on September 23, 1985.
- Nighttime temperatures dropped to 20°C (68°F) on September 23, 2012, marking the coldest September night on record.
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 Khao Lak in September
Warm but pleasant conditions in Khao Lak 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. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.
What To Do in Khao Lak in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Khao Lak 3-Day Forecast
More climate data for Khao Lak
See the full Khao Lak 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.
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