Karuizawa vs Okinawa: which is better, month by month

Okinawa beats Karuizawa in 6 of 12 months — its lead peaks in February (67 vs 54) — while Karuizawa wins May to June; they are within 3 points in the other 4 months.

Each place is scored under the lens that suits its type — they are different kinds of destination, so the scores are each place at its own best. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Karuizawa

🇯🇵 Japan · mild climate

Best month: May 79/100
Months won: 2 of 12

Okinawa

🇯🇵 Japan · mild climate

Best month: July 79/100
Months won: 6 of 12

Karuizawa vs Okinawa — all 12 months

Month	Karuizawa	Okinawa	Winner	Gap
January	51Dfreezing, a little rain, clean air	62Cnice, rainy	Okinawa	11
February	54Dfreezing, a little rain, clean air	67Cnice, rainy	Okinawa	13
March	63Ccold, rainy, reliable snow	71Bnice, rainy	Okinawa	8
April	73Bcool, rainy	76Bwarm, rainy, muggy air	Tie	3
May	79Bnice, rainy, muggy air	72Bhot, soaked, muggy air	Karuizawa	7
June	77Bnice, soaked, muggy air	70Bhot, soaked, clean air	Karuizawa	7
July	71Bhot, soaked, clean air	79Bsweltering, soaked, clean air	Okinawa	8
August	75Bhot, soaked, clean air	77Bsweltering, soaked, clean air	Tie	2
September	78Bnice, soaked, clean air	75Bsweltering, soaked, clean air	Tie	3
October	66Ccool, soaked, clean air	78Bhot, rainy, clean air	Okinawa	12
November	69Ccold, a little rain, clean air	73Bwarm, rainy, clean air	Okinawa	4
December	58Dcold, a little rain, clean air	60Cnice, soaked, clean air	Tie	2

A month is a tie when the two are within 3 points. The widest gap is February (54 vs 67). Tap a month for that month's temperature, rain, humidity and air quality side by side.