World → Thailand → Chiang Mai

Weather in Chiang Mai — today

Tomorrow Day after tomorrow 3 days Week 14 days Month forecast Weather archive

Now in Chiang Mai

🌦️

+27°

Drizzle

Feels like +33° · humidity 80%

Today 12.9: +29° / +23°

🕐 13:25

Wind

4 km/h

UV index

Air (AQI)

73 · Poor

Precipitation

90%

Humidity

80%

Pressure

1013 hPa

Sunrise / sunset

06:11 / 18:29

👕 What to wear today

Warm — a T-shirt and light trousers or shorts.

☂️ Take an umbrella🧴 SPF 50Feels warmer by 6°

Weather for an activity:

🎣 fishing 🏃 a run 📸 a photo shoot 🚶 a walk

Detailed weather information for Chiang Mai

Today, 12 September, Saturday, in Chiang Mai (Thailand): partly cloudy, warm. During the day the air will warm up to +29°, at night around +23°. Due to high humidity it feels like +33°. UV is extreme (index 9) — better stay in the shade at midday. Wind up to 10 km/h. High chance of rain — be sure to take an umbrella or a raincoat. Light summer clothing will do — a T-shirt and shorts or light trousers. The sun will rise at 06:11 and set at 18:29 — daylight lasts 12 hours.

Hourly weather in Chiang Mai

💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).

Weather in Chiang Mai for 14 days

Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).

▶

Today 12.9

⛈️

💧 90%

+23° +29°

Morning

⛈️

+25°

Day

⛈️

+29°

Evening

🌇

+28°

Night

🌙

+23°

Thunderstorm · precipitation 90% · wind up to 10 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tomorrow 13.9

🌦️

💧 33%

+23° +33°

Morning

☀️

+25°

Day

🌦️

+33°

Evening

🌇

+29°

Night

🌙

+23°

Drizzle · precipitation 33% · wind up to 7 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Mon 14.9

🌦️

💧 65%

+24° +34°

Morning

🌦️

+28°

Day

🌦️

+34°

Evening

🌇

+32°

Night

🌙

+24°

Drizzle · precipitation 65% · wind up to 10 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Tue 15.9

⛈️

💧 87%

+23° +31°

Morning

⛈️

+26°

Day

⛈️

+31°

Evening

🌇

+29°

Night

🌙

+23°

Thunderstorm · precipitation 87% · wind up to 12 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 16.9

⛈️

💧 84%

+24° +28°

Morning

⛈️

+25°

Day

⛈️

+28°

Evening

🌇

+27°

Night

🌙

+24°

Thunderstorm with hail · precipitation 84% · wind up to 3 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 17.9

⛈️

💧 92%

+23° +27°

Morning

⛈️

+24°

Day

⛈️

+27°

Evening

🌇

+26°

Night

🌙

+23°

Thunderstorm · precipitation 92% · wind up to 5 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Fri 18.9

⛈️

💧 94%

+23° +28°

Morning

⛈️

+25°

Day

⛈️

+28°

Evening

🌇

+27°

Night

🌙

+23°

Thunderstorm · precipitation 94% · wind up to 6 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sat 19.9

🌦️

💧 76%

+23° +30°

Morning

🌦️

+26°

Day

🌦️

+30°

Evening

🌇

+28°

Night

🌙

+23°

Drizzle · precipitation 76% · wind up to 10 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sun 20.9

🌦️

💧 80%

+23° +29°

Morning

🌦️

+25°

Day

🌦️

+29°

Evening

🌇

+28°

Night

🌙

+23°

Drizzle · precipitation 80% · wind up to 7 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 21.9

⛈️

💧 76%

+23° +28°

Morning

⛈️

+25°

Day

⛈️

+28°

Evening

🌇

+27°

Night

🌙

+23°

Thunderstorm · precipitation 76% · wind up to 8 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 22.9

🌦️

💧 65%

+23° +28°

Morning

🌦️

+25°

Day

🌦️

+28°

Evening

🌇

+27°

Night

🌙

+23°

Drizzle · precipitation 65% · wind up to 7 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 23.9

🌦️

💧 67%

+23° +27°

Morning

🌦️

+24°

Day

🌦️

+27°

Evening

🌇

+26°

Night

🌙

+23°

Drizzle · precipitation 67% · wind up to 10 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 24.9

🌦️

💧 65%

+23° +25°

Morning

🌦️

+24°

Day

🌦️

+25°

Evening

🌇

+25°

Night

🌙

+23°

Rain showers · precipitation 65% · wind up to 6 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Fri 25.9

🌦️

💧 67%

+22° +25°

Morning

🌦️

+23°

Day

🌦️

+25°

Evening

🌇

+24°

Night

🌙

+22°

Rain showers · precipitation 67% · wind up to 2 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

🗺️ Precipitation radar

Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.

Rain intensity:lightmoderateheavy

🎯 What to do in this weather — indices of the day

Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.

🏃 Running

0 / 100

comfort for running · Bad

🧴 UV

81%

extreme · high

☂️ Rain

90%

likely · high

✨ Stars

25 / 100

evening visibility · So-so

🧺 Laundry drying

0 / 100

will dry outside · Bad

🚗 Car wash

0 / 100

better to wait · Bad

🌫️ Air quality

Poor air

European AQI

PM2.5: 10PM10: 10O₃: 146NO₂: 2

People with allergies or asthma should reduce time outdoors.

🌅 Sun, moon and sea

Sunrise

06:11

Sunset

18:29

Golden hour

18:00

Daylight

12 h (-1 min vs yesterday)

Chiang Mai climate by month

Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.

+28°

+16°

Jan

+31°

+18°

Feb

+34°

+21°

Mar

+36°

+24°

Apr

+33°

+25°

May

+31°

+24°

Jun

+30°

+24°

Jul

+29°

+23°

Aug

+29°

+23°

Sep

+29°

+22°

Oct

+28°

+19°

Nov

+27°

+16°

Dec

swipe sideways →

Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit

Month	Day	Night	Precipitation	What to pack and what makes the month notable (events, nuances)
January	+28°	+16°	9 mm	Warm and comfortable: +28° by day, +16° at night. 😊 light summer clothing. Weather-wise, one of the three best months to visit.
February	+31°	+18°	3 mm	Gentle warmth — about +31° daytime, great walking weather. 😊 light summer clothing. One of the driest months — rain is very unlikely.
March	+34°	+21°	12 mm	A hot, dry month: +34° daytime, warm pleasant evenings. ☀️ water and sunscreen.
April	+36°	+24°	31 mm	Hot (+36° by day) but dry — manageable with a sensible schedule. ☀️ water and sunscreen. This is the hottest month of the year in Chiang Mai.
May	+33°	+25°	108 mm	Up to +33° by day — hot, yet not muggy; mornings and evenings are pleasant. Frequent rain (108 mm over the month) — keep indoor backup plans. ☀️ water and sunscreen.
June	+31°	+24°	133 mm	A comfortable month: +31° by day without exhausting heat. One of the wettest months (133 mm): downpours can derail plans. 😊 light summer clothing. The longest daylight hours of the year — more time for everything.
July	+30°	+24°	194 mm	Warm and comfortable: +30° by day, +24° at night. It's a rainy month (194 mm) — an umbrella is a must. 😊 light summer clothing.
August	+29°	+23°	258 mm	Gentle warmth — about +29° daytime, great walking weather. Frequent rain (258 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Statistically the wettest month of the year.
September	+29°	+23°	241 mm	A comfortable month: +29° by day without exhausting heat. One of the wettest months (241 mm): downpours can derail plans. 😊 light summer clothing.
October	+29°	+22°	113 mm	Warm and comfortable: +29° by day, +22° at night. It's a rainy month (113 mm) — an umbrella is a must. 😊 light summer clothing.
November	+28°	+19°	24 mm	Gentle warmth — about +28° daytime, great walking weather. 😊 light summer clothing. Weather-wise, one of the three best months to visit.
December	+27°	+16°	12 mm	A comfortable month: +27° by day without exhausting heat. 😊 light summer clothing. This is the coldest month of the year.

When to visit Chiang Mai

✅ Recommended time to visit

🌟 Best time: January, November, December

Daytime air+27…+28°

Precipitationrare

Why: comfortable +27…+28° by day, little rain.

⚠️ Doable, with caveats

🌤️ Shoulder season: February, March, April, May, June, October

Daytime air+29…+36°

Precipitationoften

Why: noticeable rain risk (3–133 mm/month) — pack an umbrella and backup plans.

🔴 Not the best time

🌤️ Shoulder season: July, August, September

Daytime air+29…+30°

Precipitationoften

Why: the rainy season (194–258 mm/month) — downpours almost daily.

Bottom line: the best time to visit Chiang Mai is November – January, and the most comfortable months are January, November, December. The toughest months to visit are July, August, September: frequent rain.