Porto vs San Sebastián: which is better, month by month

Porto beats San Sebastián in 4 of 12 months — its lead peaks in August (95 vs 84) — and they are within 3 points in October to May.

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.

Porto

🇵🇹 Portugal · mild climate

Best month: August 95/100
Months won: 4 of 12

San Sebastián

🇪🇸 Spain · mild climate

Best month: July 88/100
Months won: 0 of 12

Porto vs San Sebastián — all 12 months

Month	Porto	San Sebastián	Winner	Gap
January	61Ccool, soaked, clean air	58Dcool, soaked, clean air	Tie	3
February	70Bcool, rainy, clean air	68Ccool, rainy, muggy air	Tie	2
March	72Bcool, rainy, clean air	73Bcool, rainy, clean air	Tie	1
April	79Bnice, rainy, clean air	80Anice, rainy, clean air	Tie	1
May	86Anice, a little rain, clean air	86Anice, rainy, clean air	Tie	0
June	90Swarm, a little rain, clean air	85Awarm, rainy, clean air	Porto	5
July	94Swarm, dry, clean air	88Awarm, rainy, clean air	Porto	6
August	95Swarm, dry, clean air	84Awarm, rainy, clean air	Porto	11
September	91Swarm, a little rain, muggy air	83Awarm, rainy, clean air	Porto	8
October	76Bnice, soaked, clean air	79Bnice, rainy, clean air	Tie	3
November	65Cnice, soaked, clean air	62Ccool, soaked, clean air	Tie	3
December	62Ccool, soaked, clean air	63Ccool, soaked, clean air	Tie	1

A month is a tie when the two are within 3 points. The widest gap is August (95 vs 84). Tap a month for that month's temperature, rain, humidity and air quality side by side.