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Sukhothai Weather in September
September in Sukhothai typically sees daytime highs of 34°C (93°F) and nighttime lows of 26°C (79°F). As the wettest month of the year, expect more rainfall than other months.
Rainfall in Sukhothai in September
Sukhothai is in the rainy season in September, with rain on around 18 days and an average of 275 mm (11 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Sukhothai in September
Daytime highs in Sukhothai in September reach 34°C (93°F), with nights around 26°C (79°F). For most visitors, the main thing to prepare for is the heat during the day. 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 Sukhothai in September
The area enjoys a moderate level of sunlight, with around 109 hours. It's a good balance between sunny and rainy days.September in Sukhothai 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.
Sukhothai Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
34°C (93°F)
Chance of Rain
61%
Precipitation
275 mm (11 in)
Rainy days
18 days
Humidity
81% *
Sunshine
109 hours *
Percentage Sunshine
*
* Data from: Phitsanulok, Thailand (50 KM, 31 Miles).
Sukhothai Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sukhothai - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sukhothai typically stay consistent throughout September, with daily highs averaging around 34°C (93°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 Sukhothai in September
Browse day-by-day weather records for Sukhothai spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sukhothai historical weather extremes in September
The extremes listed below come from historical weather data collected in Sukhothai from 1976 through 2025.
- On September 28, 2018, temperatures climbed to 37°C (99°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 26°C (79°F), recorded on September 22, 1978.
- Nighttime temperatures dropped to 22°C (72°F) on September 23, 1986, marking the coldest September night on record.
- The wettest September day on record brought 148 mm (5.8 in) of precipitation to Sukhothai (September 14, 2013).
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 Sukhothai in September
Hot weather in September means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Sukhothai 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
Sukhothai 3-Day Forecast
More climate data for Sukhothai
Temperature Rainfall Sunshine Humidity
See the full Sukhothai 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
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