Monday, October 19, 2026 · Thailand
Skin weather in Chiang Mai UV index & humidity today
What today’s weather in Chiang Mai does to your skin – based on current forecast data for UV, humidity and air quality.
Updated Oct 19, 2026, 3:10 PM local time
Today · Temperature24 to 33 °C
Low and high-
UV index
7.7
very high
Peak UV index today: 7.7 – very high.
Very high UV: the WHO advises avoiding the midday sun and reapplying sun protection regularly.
-
Humidity
71%outdoors
humid
Average humidity today: 71%.
Humid air – lighter textures often feel more comfortable today.
-
Pollen
–
No pollen forecast is available for this region.
-
Air quality
69EAQI
poor
European Air Quality Index up to 69 – poor. Fine dust (PM2.5) averages 20.9 µg/m³.
Fine dust settles on the skin – cleanse thoroughly but gently in the evening.
Tomorrow
- 25 to 33 °C
- UV 7.7 · very high
- 74% · humid
- Air quality: poor
Skin climate in Chiang Mai through the year
When the air in Chiang Mai is driest and when the sun is strongest – based on climate data from recent years.
- In Chiang Mai the average daily temperature stays above 15 °C all year – heating is rarely needed. Outdoor humidity ranges between 60% and 84%.
- All year round the midday sun in Chiang Mai climbs higher than 45° – your shadow is shorter than you are. According to the WHO shadow rule, UV is then usually high.
- March brings the most sunshine, with around 330 hours.
| Month | Sunshine | Midday sun | Humidity outdoors | Indoors when heated | Avg. high |
|---|---|---|---|---|---|
| Jan | 305 h | 50° | 74% | – | 27.8 °C |
| Feb | 299 h | 58° | 65% | – | 31 °C |
| Mar | 330 h | 68° | 60% | – | 33.9 °C |
| Apr | 323 h | 81° | 62% | – | 35.4 °C |
| May | 299 h | 90° | 69% | – | 32.7 °C |
| Jun | 260 h | 85° | 73% | – | 30.8 °C |
| Jul | 230 h | 87° | 78% | – | 29.8 °C |
| Aug | 223 h | 85° | 82% | – | 29.2 °C |
| Sep | 250 h | 73° | 84% | – | 29.3 °C |
| Oct | 287 h | 62° | 83% | – | 29 °C |
| Nov | 288 h | 52° | 83% | – | 28.6 °C |
| Dec | 299 h | 48° | 80% | – | 27.2 °C |
Indoors when heated = humidity when outdoor air is warmed to 21 °C (only months with a daily average below 15 °C). Midday sun = sun angle in mid-month.
Frequently asked questions
What is the UV index in Chiang Mai today?
Today (October 19) the UV index in Chiang Mai reaches up to 7.7 – very high. Very high UV: the WHO advises avoiding the midday sun and reapplying sun protection regularly.
How dry is the air in Chiang Mai today?
Average humidity today: 71%. Humid air – lighter textures often feel more comfortable today.
When is the air driest in Chiang Mai?
In Chiang Mai the average daily temperature stays above 15 °C all year – heating is rarely needed. Outdoor humidity ranges between 60% and 84%.
When is UV strongest in Chiang Mai?
All year round the midday sun in Chiang Mai climbs higher than 45° – your shadow is shorter than you are. According to the WHO shadow rule, UV is then usually high. March brings the most sunshine, with around 330 hours.
Your skin weather, every morning.
Lumée reads UV, humidity, pollen and air quality for your location and turns them into skincare that fits this exact day.
Skin weather nearby
All cities →Data: WDTEC GmbH’s own weather servers – temperature, UV index and humidity from weather models, air quality and pollen from the Copernicus Atmosphere Monitoring Service (CAMS). Ratings: UV per WHO, air quality per European Air Quality Index, pollen per NAB. Skincare tips are general recommendations and do not replace medical advice.