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Railey Weather in September
With daytime temperatures of 30°C (86°F) and nighttime lows of 26°C (79°F), September in Railey brings very high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.
Rainfall in Railey in September
As part of the rainy season, Railey sees around 22 days of rain in September, with an average of 318 mm (13 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Railey in September
If you're visiting Railey in September, expect highs of 30°C (86°F) and overnight lows around 26°C (79°F). For most visitors, the main thing to prepare for is the heat during the day. With lows around 26°C (79°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Railey in September
The month brings about 145 hours of sunlight, offering a comfortable mix of sun and rainy moments.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Railey. Our weather planner can help you explore destinations with more pleasant weather conditions.
Railey Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
74%
Precipitation
318 mm (13 in)
Rainy days
22 days
Humidity
88%
Sunshine
145 hours
Percentage Sunshine
Railey Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Railey - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Railey typically stay consistent throughout September, with daily highs averaging around 30°C (86°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 Railey in September
Browse day-by-day weather records for Railey spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Railey historical weather extremes in September
According to our 49 years of weather records for Railey, the following extremes were recorded between 1976 and 2025.
- The hottest September day on record in Railey reached 36°C (97°F) (September 15, 2001).
- The lowest daytime temperature in September was 25°C (77°F), recorded on September 15, 2014.
- Nighttime temperatures dropped to 20°C (68°F) on September 1, 1994, 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 Railey in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. 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 Railey 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
Railey 3-Day Forecast
More climate data for Railey
Temperature Rainfall Sunshine Humidity
See the full Railey 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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