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.
Karon Beach Weather in September
September in Karon Beach typically sees daytime highs of 29°C (84°F) and nighttime lows of 26°C (79°F). September falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Karon Beach in September
Karon Beach is in the rainy season in September, with rain on around 22 days and an average of 287 mm (11 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Karon Beach in September
In September, expect high temperatures in Karon Beach, with highs of 29°C (84°F) and lows of 26°C (79°F) at night. This kind of day-to-night contrast is typical for this time of year. 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 Karon Beach in September
The area enjoys a moderate level of sunlight, with around 100 hours. It's a good balance between sunny and rainy days.September in Karon Beach 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.
Karon Beach Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Chance of Rain
75%
Precipitation
287 mm (11 in)
Rainy days
22 days
Humidity
82% *
Sunshine
100 hours *
Percentage Sunshine
*
* Data from: Phuket, Thailand (27 KM, 17 Miles).
Karon Beach Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Karon Beach - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Karon Beach typically stay consistent throughout September, with daily highs averaging around 29°C (84°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 Karon Beach in September
Browse day-by-day weather records for Karon Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Karon Beach historical weather extremes in September
Based on weather observations in Karon Beach between 1976 and 2025, these are the recorded extremes during September.
- On September 1, 2010, temperatures climbed to 38°C (100°F), marking the warmest September day on record.
- The coldest September day was on September 4, 1994, with a maximum of 25°C (77°F).
- Karon Beach registered its coldest September night on September 1, 1994, with temperatures dropping to 20°C (68°F).
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 Karon Beach in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Karon Beach in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Karon Beach 3-Day Forecast
More climate data for Karon Beach
Temperature Rainfall Sunshine Humidity
See the full Karon Beach 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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