Chiang Rai Weather in May
Thailand · 30-year monthly averages
⚠️ Challenging time to visit
May in Chiang Rai is hot, with average daytime highs around 34°C (92°F) and nighttime lows near 23°C (73°F). Expect roughly 227mm of precipitation spread over about 15 rainy days, and heavy rainfall is common — this is peak wet season territory.
Avg high
34°C
92°F
Avg low
23°C
73°F
Rainfall
227mm
very wet
Rainy days
15
days with ≥1mm
☀️ About 216 hours of sunshine over the month (~7h/day).
🎒 What to pack
- breathable summer clothing
- sunscreen, hat and sunglasses
- refillable water bottle
- compact umbrella or rain jacket
May vs the rest of the year
FAQ
- How hot is Chiang Rai in May?
- May in Chiang Rai is hot, with average daytime highs around 34°C (92°F) and nighttime lows near 23°C (73°F). Expect roughly 227mm of precipitation spread over about 15 rainy days, and heavy rainfall is common — this is peak wet season territory.
- Does it rain a lot in Chiang Rai in May?
- Chiang Rai sees around 227mm of precipitation in May on average — very wet by global standards.
- Is May a good time to visit Chiang Rai?
- May is a challenging month to visit Chiang Rai weather-wise — plan around the conditions.