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

Oslo beats Chiang Mai in 6 of 12 months — its lead peaks in July (94 vs 53) — while Chiang Mai wins November to March; they are within 3 points in October.

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: 5 of 12

Oslo

🇳🇴 Norway · mild climate

Best month: July 94/100
Months won: 6 of 12

Chiang Mai vs Oslo — all 12 months

Month	Chiang Mai	Oslo	Winner	Gap
January	87Ahot, dry	33Ffreezing, a little rain, clean air	Chiang Mai	54
February	82Asweltering, dry	43Ffreezing, a little rain, clean air	Chiang Mai	39
March	65Csweltering, dry	61Ccold, a little rain, clean air	Chiang Mai	4
April	54Dsweltering, dry	76Bcold, a little rain, clean air	Oslo	22
May	52Dsweltering, rainy	83Anice, a little rain, clean air	Oslo	31
June	60Csweltering, rainy, clean air	90Snice, rainy, clean air	Oslo	30
July	53Dsweltering, soaked, clean air	94Swarm, rainy, clean air	Oslo	41
August	46Fsweltering, soaked, clean air	86Anice, rainy, clean air	Oslo	40
September	49Fsweltering, soaked, muggy air	74Bnice, rainy, clean air	Oslo	25
October	61Csweltering, soaked, muggy air	59Dcold, rainy, clean air	Tie	2
November	74Bsweltering, a little rain, muggy air	47Fcold, a little rain, clean air	Chiang Mai	27
December	84Ahot, dry	36Ffreezing, a little rain, clean air	Chiang Mai	48

A month is a tie when the two are within 3 points. The widest gap is January (87 vs 33). Tap a month for that month's temperature, rain, humidity and air quality side by side.