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.
September in Phimai brings very high temperatures, with highs of 33°C (91°F) and nights dropping to 25°C (77°F). It's the rainiest month of the year, so come prepared with waterproof gear.
If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Phimai. Our weather planner can help you explore destinations with more pleasant weather conditions.
Pick a month to see the average temperature, rainfall and sunshine in Phimai - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Phimai typically stay consistent throughout September, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 24°C (75°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Phimai spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Phimai.
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 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).
Pack for serious heat in Phimai in September. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Phimai climate overview or explore weather in Thailand.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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.
Warm Days, Cool Nights: 8 Destinations With the Perfect Day-Night Temperature
Prefer warm sunny days but cool evenings? Compare eight destinations with daytime temperatures of around 25–30°C, cooler nights, low rainfall and plenty of sunshine.
Where to Travel in July and August: Mexico, Thailand, Indonesia or Somewhere Else?
Compare July and August weather in Mexico, Thailand, Indonesia, Zanzibar and Sri Lanka, using historical climate data for temperature, rainfall and sunshine.
Discover Thailand: An Ultimate Guide for Yogis
Explore Thailand's best for yogis: serene retreats, spiritual growth, and adventure. Dive into yoga, meditation, and nature's tranquility for an unforgettable journey.