Nov · Dec · Jan · Feb
Drier season with cooler nights: hot afternoons, mild nights
Avg low 14–20°C / high 28–31°C · Rainy days: 0–5 / 0–30 mm
- • Afternoons are still warm, but lower humidity often feels easier.
- • Mornings and nights can feel cool enough for a light long sleeve.
- • Mountain segments (e.g., Doi Suthep) can feel cooler.
Suggested outfits
- · Breathable summer clothing
- · Light long sleeve for nights
- · Thin layer for indoor AC
A note for travelers
In the cool-dry season, night feel is a bigger variable in Chiang Mai than in Bangkok.
Mar · Apr
Hot season with possible haze: strong heat feel, air can feel hazy
Avg low 20–24°C / high 34–38°C · Rainy days: 1–7 / 5–60 mm
- • Unshaded routes can feel harsh quickly.
- • If haze is present, outdoor comfort can change.
- • Midday indoor breaks often decide how the day feels.
Suggested outfits
- · Light breathable clothes
- · Hat/sunscreen/small towel
- · Thin cardigan for indoors
A note for travelers
In this season, comfort is more about timing than toughness.
May · Jun · Jul · Aug · Sep · Oct
Rainy season: humidity + short intense showers
Avg low 22–24°C / high 30–33°C · Rainy days: 12–24 / 90–260 mm (often peaking around Aug–Sep)
- • Short heavy showers can pause movement and soak clothes fast.
- • High humidity can make heat feel heavier.
- • After rain, it turns hot again—staying damp gets uncomfortable.
Suggested outfits
- · Quick-dry fabrics
- · Water-safe pouch/rain jacket option
- · Less-slippery footwear
A note for travelers
Rainy season often works best with a rhythm: pause during downpours, move when it opens.
