Chiang Mai Climate and Average Weather
Climate of Chiang Mai: average temperatures, rainfall and seasons month by month.
Climate in Chiang Mai month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 81° | 62° | 0,3 in | ★★★★☆ |
| February | 87° | 65° | 0,8 in | ★★★★☆ |
| March | 92° | 69° | 0,5 in | ★★★★★ |
| April | 98° | 76° | 1,1 in | ★★★★☆ |
| May | 92° | 76° | 12,4 in | ★★☆☆☆ |
| June | 88° | 75° | 11,5 in | ★★★☆☆ |
| July | 86° | 75° | 18,5 in | ★★★☆☆ |
| August | 86° | 74° | 13,0 in | ★★★☆☆ |
| September | 86° | 74° | 16,1 in | ★★★☆☆ |
| October | 86° | 72° | 7,9 in | ★★★☆☆ |
| November | 83° | 68° | 3,7 in | ★★★★☆ |
| December | 82° | 65° | 1,1 in | ★★★★☆ |
Climate type: Tropical. Source: Open-Meteo archive (ERA5).
Recent extremes in Chiang Mai
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Chiang Mai compares with nearby places
Annual averages, and the difference against Chiang Mai.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Myanmar | 201 mi | 79°F | about the same | 119 in |
| Mekong River | 246 mi | 80°F | +33°F warmer | 85 in |
| Laos | 246 mi | 80°F | +33°F warmer | 85 in |
| Bangkok | 362 mi | 83°F | +37°F warmer | 63 in |
| Grand Palace | 362 mi | 83°F | +37°F warmer | 63 in |
Best time to visit Chiang Mai
Go in January, February, March and December. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: May, June and September - expect the least comfortable mix of heat, cold or rain.
What this means for Chiang Mai
Today is about average for August. The forecast high of 88°F is in line with the 86°F typical for this month.
A 92% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 47°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 7 of the next 7 days carry a real chance of rain
- High-factor sunscreen and a long-sleeve sun layer for midday
- Insect repellent and quick-dry fabrics for humidity
- Avoid unshaded sightseeing between 10am and 4pm - the UV index peaks at 8.
- If your dates are flexible, avoid May, June and September - historically the least comfortable months here.
Summary
Chiang Mai is a city in Thailand. Chiang Mai is known for Temples, night markets and mountains. It has a population of about 127.000.
Right now it is 87°F (31°C) in Chiang Mai with overcast. It feels like 99°F. Today runs from 74°F to 88°F. Chance of precipitation is 92%. Sightseeing conditions score 6.5/10 - fair - plan around the weather.
The best time to visit Chiang Mai is January, February, March and December. The climate is tropical. May, June and September tend to be the least comfortable months. April is the warmest month with average highs near 98°F, while January is the coldest with lows near 62°F.
Nearby highlights include Mekong River.
In plain terms. Today is about average for August. The forecast high of 88°F is in line with the 86°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Chiang Mai today at 8.3/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Chiang Mai
Weather map for Chiang Mai
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Chiang Mai
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Chiang Mai?
Chiang Mai is a city in Thailand. Its coordinates are 18.7883, 98.9853. It lies in Asia.
What is the weather like in Chiang Mai right now?
It is currently 87°F (31°C) with overcast. Humidity is 66% and wind is 6 mph.
When is the best time to visit Chiang Mai?
January, February, March and December offer the most comfortable conditions in Chiang Mai, which has a tropical climate. May, June and September are usually the hardest months for outdoor plans.
What time zone is Chiang Mai in?
Chiang Mai observes Asia/Bangkok (UTC+07:00). The local time is 6:09 AM.
How many people live in Chiang Mai?
Chiang Mai has a population of approximately 127.000.
What are the top things to do in Chiang Mai?
Popular options include Mekong River.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-world) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 23, 2026 at 6:09 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
