Winter
Dec → Feb27 to 30°
nights 17 to 18°
- 3 rainy days · 24 mm
- 10.4 h of sun
When is the best time to visit Chiang Mai?
- Jan27°recommended
- Feb30°recommended
- Mar34°fair
- Apr35°not recommended
- May34°not recommended
- Jun31°not recommended
- Jul30°not recommended
- Aug29°not recommended
- Sep29°not recommended
- Oct29°fair
- Nov29°recommended
- Dec27°recommended
RecommendedFairNot recommended· afternoon temperature
The weather in Chiang Mai, month by month
The table of records, month by month
| Month | High | Low | Sunshine | Rainfall | Rainy days | Best |
|---|---|---|---|---|---|---|
| January | 27° | 17° | 10.1 h | 25 mm | 4 d | ✓ |
| February | 30° | 18° | 10.8 h | 21 mm | 1 d | ✓ |
| March | 34° | 21° | 10.9 h | 10 mm | 2 d | |
| April | 35° | 24° | 11.1 h | 56 mm | 7 d | |
| May | 34° | 25° | 10.6 h | 183 mm | 17 d | |
| June | 31° | 24° | 9.1 h | 220 mm | 25 d | |
| July | 30° | 24° | 7.8 h | 333 mm | 27 d | |
| August | 29° | 24° | 7.2 h | 390 mm | 29 d | |
| September | 29° | 23° | 8.6 h | 328 mm | 26 d | |
| October | 29° | 22° | 9.6 h | 174 mm | 18 d | |
| November | 29° | 20° | 10.1 h | 49 mm | 8 d | ✓ |
| December | 27° | 18° | 10.2 h | 25 mm | 3 d | ✓ |
The four seasons in Chiang Mai, in figures
What the 2015-2024 records (Chiang Mai (old city)) show, season by season, to compare at a glance instead of reading twelve rows of a table.
Spring
Mar → May34 to 35°
nights 21 to 25°
- 9 rainy days · 83 mm
- 10.9 h of sun
Summer
Jun → Aug29 to 31°
nights 24°
- 27 rainy days · 314 mm
- 8 h of sun
Autumn
Sep → Nov29°
nights 20 to 23°
- 17 rainy days · 184 mm
- 9.4 h of sun
Book early for November to February
The timing is right, so it is right for everyone: in these months the best places to stay and the small-group tours go first. Here is where to start.
Some links are affiliate links: we may earn a commission, at no extra cost to you. The selection does not depend on these links.
What to do in Chiang Mai, month by month
EventsYi Peng and Loy KrathongNovemberSongkranAprilFlower FestivalFebruaryHimalayan cherry blossomJanuaryDetails ↓
favourablewith compromisesunfavourable
- Sightseeing & walks: January, February, November, December
Grid derived from the records (temperature, rainfall), not from an opinion.
What's on in Chiang Mai, month by month?
What comes back every year, and when. These events fill the hotels and push prices up: something to aim for or to avoid, depending on what you want.
- NovemberYi Peng and Loy Krathong big crowds
Lanterns released into the sky and small flower rafts set afloat on the Ping, at the November full moon.
- AprilSongkran big crowds
Three days of water fights around the moats of the old city, with blessings at the temples in the morning.
- FebruaryFlower Festival
Floats covered in flowers and marching bands cross the city on the first weekend of February, when the orchids are at their best.
- JanuaryHimalayan cherry blossom
The slopes of Khun Chang Khian and Doi Inthanon turn pink for two weeks in the heart of the dry season.
Travelling off-peak
Month by month, in detail
January
Recommended27°17° at night
- 25 mm · 4 d
- 10.1 h
High season, book early
February
Recommended30°18° at night
- 21 mm · 1 d
- 10.8 h
High season, book early
March
Fair34°21° at night
- 10 mm · 2 d
- 10.9 h
Low season, lower prices
April
Not recommended35°24° at night
- 56 mm · 7 d
- 11.1 h
Busy, without the crush
May
Not recommended34°25° at night
- 183 mm · 17 d
- 10.6 h
Low season, lower prices
June
Not recommended31°24° at night
- 220 mm · 25 d
- 9.1 h
Low season, lower prices
July
Not recommended30°24° at night
- 333 mm · 27 d
- 7.8 h
Low season, lower prices
August
Not recommended29°24° at night
- 390 mm · 29 d
- 7.2 h
Low season, lower prices
September
Not recommended29°23° at night
- 328 mm · 26 d
- 8.6 h
Low season, lower prices
October
Fair29°22° at night
- 174 mm · 18 d
- 9.6 h
Low season, lower prices
November
Recommended29°20° at night
- 49 mm · 8 d
- 10.1 h
High season, book early
December
Recommended27°18° at night
- 25 mm · 3 d
- 10.2 h
High season, book early
Read the twelve months in detail
January. 27 °C in the afternoon and 17 °C at night. Rain stays light: 25 mm over 4 days. Plenty of sunshine: 10.1 h a day on average. High season: book early.
February. 30 °C in the afternoon and 18 °C at night. Hardly any rain (21 mm over 1 day). Plenty of sunshine: 10.8 h a day on average. High season: book early.
March. Real heat: 34 °C at the warmest of the day, 21 °C at night. Hardly any rain (10 mm over 2 days). Plenty of sunshine: 10.9 h a day on average. Low season: fewer people, lower prices.
April. Real heat: 35 °C at the warmest of the day, 24 °C at night. Rain stays light: 56 mm over 7 days. Plenty of sunshine: 11.1 h a day on average. Busy season, without the crush.
May. Real heat: 34 °C at the warmest of the day, 25 °C at night. A very wet month, 183 mm of rain over 17 days. Plenty of sunshine: 10.6 h a day on average. Low season: fewer people, lower prices.
June. 31 °C in the afternoon and 24 °C at night. A very wet month, 220 mm of rain over 25 days. Plenty of sunshine: 9.1 h a day on average. Low season: fewer people, lower prices.
July. 30 °C in the afternoon and 24 °C at night. A very wet month, 333 mm of rain over 27 days. Expect 7.8 h of sunshine a day. Low season: fewer people, lower prices.
August. 29 °C in the afternoon and 24 °C at night. A very wet month, 390 mm of rain over 29 days. Expect 7.2 h of sunshine a day. Low season: fewer people, lower prices.
September. 29 °C in the afternoon and 23 °C at night. A very wet month, 328 mm of rain over 26 days. Expect 8.6 h of sunshine a day. Low season: fewer people, lower prices.
October. 29 °C in the afternoon and 22 °C at night. Frequent rain: 174 mm over 18 days. Plenty of sunshine: 9.6 h a day on average. Low season: fewer people, lower prices.
November. 29 °C in the afternoon and 20 °C at night. Expect 8 days of rain in the month (49 mm). Plenty of sunshine: 10.1 h a day on average. High season: book early.
December. 27 °C in the afternoon and 18 °C at night. Hardly any rain (25 mm over 3 days). Plenty of sunshine: 10.2 h a day on average. High season: book early.
Same season, other ideas
Their best time overlaps with this one: worth comparing before you book.
Frequently asked questions
When is the best time to visit Chiang Mai?
November to February: over these months, recorded highs range from 27 to 30 °C, with 4 days of rain a month on average (2015-2024 records, Chiang Mai (old city)).
Which month should you avoid in Chiang Mai?
August: it is the wettest of the months to avoid, with 390 mm over 29 days of rain on average, according to 2015-2024 records at the reference point (Chiang Mai (old city)).
What is the hottest month in Chiang Mai?
April, with 35 °C on average in the afternoon and 24 °C at night. 2015-2024 records (Chiang Mai (old city)).
What is the coldest month in Chiang Mai?
January, with 27 °C at best during the day and 17 °C at night. 2015-2024 records (Chiang Mai (old city)).
What is the driest month in Chiang Mai?
March: 10 mm over 2 days of rain, against 390 mm in August, the wettest month.
Which month has the most sunshine in Chiang Mai?
April, with 11.1 h of sunshine a day on average. Note that this counts clear skies, not the length of the day.
Does it get cold at night in Chiang Mai?
The gap between day and night reaches 13 °C in March: 34 °C in the afternoon, 21 °C at dawn. Pack an extra layer, even in high season.
Plan this trip
📒 The free printable Chiang Mai guide: itinerary, map, where to sleep→
🧭 When to visit Thailand: the country overview→
🗓️ Best time to visit: all our destinations→
Compare with other destinations
Photos: Basile Morin / CC BY-SA 4.0 (Wikimedia Commons) · Serg Alesenko / Pexels · Guillaume Meurice / Pexels