Chiang Mai vs Reykjavík: which is better, month by month

Chiang Mai and Reykjavík split the year 6–6 — Chiang Mai wins October to March, Reykjavík wins April to September.

Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Chiang Mai

🇹🇭 Thailand · tropical climate

Best month: January 87/100
Months won: 6 of 12

Reykjavík

🇮🇸 Iceland · mild climate

Best month: July 85/100
Months won: 6 of 12

Chiang Mai vs Reykjavík — all 12 months

Month	Chiang Mai	Reykjavík	Winner	Gap
January	87Ahot, dry	31Ffreezing, rainy, clean air	Chiang Mai	56
February	82Asweltering, dry	40Ffreezing, rainy, clean air	Chiang Mai	42
March	65Csweltering, dry	50Dcold, rainy, clean air	Chiang Mai	15
April	54Dsweltering, dry	64Ccold, rainy, clean air	Reykjavík	10
May	52Dsweltering, rainy	72Bcold, rainy, clean air	Reykjavík	20
June	60Csweltering, rainy, clean air	78Bcool, rainy, clean air	Reykjavík	18
July	53Dsweltering, soaked, clean air	85Acool, a little rain, clean air	Reykjavík	32
August	46Fsweltering, soaked, clean air	81Acool, rainy, clean air	Reykjavík	35
September	49Fsweltering, soaked, muggy air	68Ccold, rainy, clean air	Reykjavík	19
October	61Csweltering, soaked, muggy air	56Dcold, rainy, clean air	Chiang Mai	5
November	74Bsweltering, a little rain, muggy air	43Fcold, rainy, clean air	Chiang Mai	31
December	84Ahot, dry	33Ffreezing, rainy, clean air	Chiang Mai	51

A month is a tie when the two are within 3 points. The widest gap is January (87 vs 31). Tap a month for that month's temperature, rain, humidity and air quality side by side.