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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Karon Beach's climate page.
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
*
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 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
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tolerable
unpleasant
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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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Karon Beach's climate page.
Temperature Rainfall Sunshine Humidity
See the full Karon Beach climate overview or explore weather in Thailand.
