Best Time to Ride a Scooter in Chiang Mai: A Month-by-Month Guide
The best time to ride a scooter in Chiang Mai is November to January. The roads are dry, the mornings are cool and the mountain views are at their clearest. February is usually still good, but smoke from the burning season builds through March and April. From mid-May to mid-October you’re riding in the rainy season.
I’m Anton. My wife and I run AA Scooter Rentals in Suthep, on the west side of the city, and we ride these roads in every season. Below is what each part of the year is like on two wheels. The weather figures come from the Thai Meteorological Department and the smoke facts from Thailand’s Pollution Control Department and news reports.
Which months are best for riding a scooter in Chiang Mai?
November, December and January are the best months for riding, with late October and February close behind. March and April are the months I’d avoid, because of smoke and heat.
The table uses the Thai Meteorological Department’s 1991–2020 averages for its Chiang Mai station in the city. The mountains are several degrees colder than these numbers. The season names follow the TMD’s definitions: hot season from mid-February to mid-May, rainy season from mid-May to mid-October, cool season from mid-October to mid-February.
Swipe the table sideways to see every column.
| Month | Season (TMD) | Avg high / low in the city | Avg rain | Smoke | For riding |
|---|---|---|---|---|---|
| January | Cool | 30.0 / 15.7 °C | 11 mm | Can start building | Excellent. Cold mountain mornings, frost on Doi Inthanon |
| February | Cool, hot from mid-month | 32.9 / 16.8 °C | 10 mm | Often hazy by late Feb | Good. Check the air before mountain rides |
| March | Hot | 35.4 / 20.1 °C | 20 mm | Usually the worst month | Skip the viewpoint rides |
| April | Hot | 36.7 / 23.4 °C | 54 mm | Bad, easing late in the month | Hottest month. Songkran mid-month |
| May | Hot, rainy from mid-month | 34.7 / 24.2 °C | 168 mm | Clearing | Mixed. The first storms clean the air |
| June | Rainy | 33.2 / 24.5 °C | 118 mm | Clean | Green, quiet, wet roads |
| July | Rainy | 32.1 / 24.3 °C | 149 mm | Clean | Good with care |
| August | Rainy | 31.6 / 24.0 °C | 223 mm | Clean | Wettest month. Keep rides short |
| September | Rainy | 32.0 / 23.7 °C | 207 mm | Clean | Waterfalls full, roads still wet |
| October | Rainy, cool from mid-month | 31.7 / 22.6 °C | 124 mm | Clean | Getting good again late in the month |
| November | Cool | 30.8 / 19.9 °C | 41 mm | Low | One of the best. Yi Peng crowds |
| December | Cool | 29.2 / 16.9 °C | 14 mm | Low | Excellent. High season |
The smoke column follows IQAir’s summary: the burning season usually runs from January to April, peaks in March and starts to ease later in April as the rains approach.
What is riding like in the cool season, November to February?
The cool season is the easiest time of year to ride a scooter in Chiang Mai. Rain almost stops: the TMD average is 41 mm in November and only 10–14 mm a month from December to February, compared with 223 mm in August. Daytime highs in the city sit around 29–31 °C from November to January, and nights drop to about 16–17 °C in December and January.
This is when the mountain rides look their best. On the Samoeng Loop, low cloud can roll in over the coffee shops at Pong Yang, and in the dry season it usually burns off by mid-morning. Mae Kampong, at roughly 1,300 metres, has its thickest morning mist now. From Doi Suthep, November to February usually gives the clearest view over the city.
Doi Inthanon is at its best too. The Kew Mae Pan nature trail is only open from November to the end of May. The rice terraces around Ban Mae Klang Luang turn gold from October into November.
The catch is crowds. November to February is peak season, and Doi Inthanon gets packed at weekends. If you can, ride the big mountains on a weekday.
How cold does it get in the mountains, and what should I wear?
It gets colder than most people pack for. The city’s coolest month, January, averages a low of 15.7 °C at the TMD station, and the mountains are much colder than that. On a scooter the wind makes it feel colder again.
The summit of Doi Inthanon is cold all year. In the cool season it can get close to freezing overnight, and from late December into January there’s frost on the grass. When my wife and I rode up, we stopped at Baan Kafé near the top just to warm our hands on a coffee.
For a cool-season mountain ride, bring:
- A warm, windproof jacket (a hoodie alone isn’t enough once you’re moving)
- Long trousers and closed shoes with decent grip
- Gloves for Doi Inthanon and Mae Kampong
- A layer you can take off, because the city is warm again by lunchtime
How bad is the burning-season smoke, and should I still ride?
In a bad year the burning-season smoke is dangerous to breathe, and it hides the views you came for. I’d plan a riding trip outside March and early April if you have any choice.
The numbers from 2026 show how bad it can get. Thailand’s Pollution Control Department sets the safe 24-hour level for PM2.5 at 37.5 micrograms per cubic metre. On the morning of 4 April 2026, the reading at Nakornping Hospital in Chiang Mai was 409 micrograms per cubic metre, almost eleven times that level.
The same day, Chiang Mai declared wildfire disaster zones in seven districts: Hot, Samoeng, Doi Saket, Chiang Dao, Mae Wang, Mae Taeng and Mae Rim. The Samoeng Loop runs through Mae Rim and Samoeng. The road to Chiang Dao runs through Mae Rim, Mae Taeng and Chiang Dao.
The province does try to stop it. In 2026 the governor banned open burning outside managed zones from 1 January to 31 May. The smoke still came. IQAir lists farm burning, forest fires and smoke drifting in from neighbouring countries as the main sources.
Not every day is that bad. Check the reading on the morning you ride:
- air4thai (air4thai.pcd.go.th) is the Pollution Control Department’s own map and app, with stations around Chiang Mai.
- IQAir shows the same stations plus more sensors, with an hourly forecast.
On an orange or red day on air4thai, we’d skip Doi Suthep and the Samoeng Loop. You won’t see anything from the top, and you’re breathing hard on the climb. What we tell customers about Doi Suthep holds for every viewpoint: if the mountain is in cloud or haze when you look up from town, the view from the top will be the same.
A helmet doesn’t filter smoke. If you do ride, wear a properly fitted N95 mask. The Nation’s report on the April 2026 smoke notes that ordinary surgical masks don’t filter PM2.5.
Is April too hot for a scooter, and what happens at Songkran?
April is the hottest month in Chiang Mai, with an average high of 36.7 °C at the TMD station, and the smoke usually hasn’t cleared yet. Ride early in the morning, drink plenty of water and plan to be off the road in the middle of the day.
Songkran, the Thai New Year on 13–15 April, changes the roads completely. Chiang Mai celebrates it with water, and people on scooters get soaked like everyone else, especially around the old city moat. A bucket of water in the face while you’re moving is how accidents start.
The national figures are sobering. Over the “seven dangerous days” of Songkran 2026 (10–16 April), the Road Accident Prevention and Reduction Center recorded 1,242 accidents and 242 deaths, and motorcycles were the vehicle type most involved, at 64.55%. Speeding was the main cause.
My honest advice: during the three main days of Songkran, park the scooter and join in on foot. If you must ride, go slowly, keep your phone in a waterproof bag and stay off the road after dark, when people have been drinking all day.
Is it safe to ride a scooter in Chiang Mai’s rainy season?
Yes, if you slow down and plan around the rain. The rainy season runs from mid-May to mid-October, and August (223 mm) and September (207 mm) are the wettest months.
The rain usually comes as heavy bursts, often in the afternoon, rather than all day. Start early, be back by early afternoon and wait out a downpour in a café instead of riding through it. Painted road markings, metal plates and the first rain after a dry spell are the slippery spots. Braking distances on a wet road are much longer, as I explain in Motorcycle Safety in Thailand.
The rainy season has real advantages. The air is clean and the hills are green. Doi Inthanon’s waterfalls are at full power from late in the rains into November, and the terraces at Ban Mae Klang Luang are flooded around June and deep green by September.
There are a few things to know before you go:
- The Kew Mae Pan trail on Doi Inthanon is closed from June to the end of October.
- The Monk’s Trail on Doi Suthep gets slippery after rain, so wear trainers, not flip-flops.
- The Ping River can flood the city. In early October 2024 it reached 5.30 metres, its highest level in 50 years. If you’re here in September or October after a week of heavy rain, check the local news before riding along the river.
Which rides should I change or skip in the rainy season?
Most of the day trips are fine in the rainy season if you leave early and take the descents slowly. The long multi-day loops are where the rain matters most.
- Doi Suthep: fine all year. It’s short, so you can wait for a dry window. See our Doi Suthep by scooter guide.
- Samoeng Loop: about 100 km of curves and climbs. Ride it on a morning with a dry forecast, and take the downhill bends slowly on wet tarmac. Route details are in our Samoeng Loop guide.
- Mae Kampong: the switchbacks just before the village are slick when wet. That’s the stretch to take extra slowly.
- Doi Inthanon: a bit over 200 km there and back, and the highest part is often in cloud. Higher up, fog rolls across the road with no warning, so put your lights on and keep left. In the rains, leave it for your driest-looking day. The full route is in our Doi Inthanon trip guide.
- Mae Hong Son Loop and Pai: about 670 km of mountain road for the full loop. I wouldn’t start it in August or September without a couple of spare days in hand, so you can sit out a wet day instead of riding through it.
Whatever the season, a 155cc scooter makes the hills easier than a 125cc, especially with two people on board. There’s more on that in Which Scooter Should You Rent in Chiang Mai?
When is high season, and should I book my scooter ahead?
High season in Chiang Mai is November to February, and that’s when it’s worth booking your scooter ahead. December and January are the busiest. For those months I’d book a week or two before you arrive.
The busiest week of the year is usually Yi Peng and Loy Krathong, on the November full moon (around 24 November in 2026). The Tourism Authority of Thailand publishes the official programme each year, so check the dates before you book. The old city and the riverside are jammed that week. You’ll get round faster on a scooter than in a car, but give yourself time.
How we hand over the bike depends on how long you rent it:
- 7 days or more: free delivery and pickup, including the airport.
- 3–6 days: delivery is possible, sometimes for a small fee.
- 1–2 days: collect the scooter from our shop.
If you can only pick one month, which should it be?
November. The rains have just finished (41 mm on average, down from 124 mm in October), the air is clean, the waterfalls on Doi Inthanon are still full and the terraces are gold. The Kew Mae Pan trail reopens, and you can catch Yi Peng if you time it right.
December and January come next if you don’t mind cold mountain mornings. If your dates are fixed in March, ride early in the day, check air4thai and keep the big viewpoint rides for a clearer trip.
You can see our scooters and prices on Scooters & Rates, or message us on WhatsApp with your dates and we’ll tell you what the roads are like that week.
Where the weather and smoke figures come from
- Thai Meteorological Department, climate normals 1991–2020, Chiang Mai station
- Thai Meteorological Department season definitions (via thailand.go.th)
- Pollution Control Department PM2.5 standard (Thai PBS World)
- Pollution Control Department, air4thai
- IQAir, Chiang Mai burning season (4 March 2026)
- The Nation, PM2.5 reading 4 April 2026
- The Nation, disaster zones 4 April 2026
- Thairath, Chiang Mai open-burning ban 2026
- Thairath, Songkran 2026 road statistics
- Al Jazeera, Chiang Mai floods October 2024
Top photo: walkers on the Kew Mae Pan trail, Doi Inthanon, in the cool season. Photo: Piith.hant, Wikimedia Commons, CC BY-SA 4.0
Written by Anton from AA Scooter Rentals, from his own rides; drafted with AI help and fact-checked.
