Thailand
Pai in September
🌧️ Rainy seasonWarm, humid and very wet.
🎒 Pack: compact umbrella or rain jacket · quick-dry fabrics
Why September scores 8.0What goes into the score
How it works- Weather comfort6.6
- ✓Warm (29.6°C highs / 22.8°C lows)
- !Very humid/sticky (dew point 21.8°C)
- !Wet: ~237 mm rain, ~9 heavy-rain days
- Air quality10.0
- ✓Good (within WHO guideline) (PM2.5 ~5 µg/m³)
- Seasonal hazards9.5
- !Flood: ~9 heavy-rain days in an average September
- Safety baseline8.0
- ·Normal precautions
| Sep | Jan | |
|---|---|---|
| Score | 8.0 Very good | 9.5 Excellent |
| Season | 🌧️ Rainy season | 🌤️ Cool season |
| High / low | 30° / 23° | 27° / 16° |
| Rain | 237 mm | 27 mm |
| Humidity | dew pt 22° | dew pt 13° |
| PM2.5 | 5 µg/m³ | 14 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast).
Holidays & crowdsSeptember 2027
No long holidaysNo long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.
No national public holidays in Thailand this month.
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Explore PaiEvents, sights, food & souvenirs
Check event dates locallyPai is a small valley town in Mae Hong Son province, popular for its relaxed atmosphere, mountain viewpoints, hot springs and night walking street.
No major events on our calendar for September.
Coming up later
Loy KrathongDate variesFull moon of the 12th Thai lunar month, usually November; date moves each year
Krathong are floated on the river during the full moon.
Why go: Cool season is high season in Pai, so book ahead.
Where: Pai River and temples
Songkran (Thai New Year)Every year13-15 April every year
Water fights fill the small town centre.
Why go: Roads around the centre are crowded and wet.
Where: Walking Street and town centre
Pai Canyon (Kong Lan)
Narrow eroded ridges with drop-offs on both sides, a popular sunset spot.
💡 Paths have no railings and are slippery after rain; wear proper shoes.
Tha Pai Memorial Bridge
An old steel bridge over the Pai River associated with the World War II period.
Yun Lai Viewpoint
A hilltop above the Chinese-Yunnanese village of Santichon, known for sunrise views over valley mist.
Wat Phra That Mae Yen
A hillside temple with a large white Buddha overlooking the town.
Tha Pai Hot Springs
Natural hot springs in a national park setting outside town.
Pam Bok Waterfall
A small waterfall in a narrow rock gorge, best with some water flow after the rains.
Khao soi
Northern Thai curry noodle soup.
💡 Noodle shops in town
Yunnanese dishes
Chinese-Yunnanese food such as braised pork leg and steamed buns.
💡 Santichon village
Walking street snacks
A wide mix of Thai and international street food sold every evening.
💡 Pai Walking Street
Handmade crafts
Jewellery, prints and clothing made by local and resident artisans.
💡 Pai Walking Street
Hill tribe textiles
Woven and embroidered fabrics from surrounding hill communities.
💡 Walking Street stalls
Yunnan tea
Tea grown and sold in the Chinese settlement of Santichon.
💡 Santichon village