In March, San Sebastian typically sees daytime highs of 14.1°C and overnight lows around 6.7°C. Compared to the annual average high of 17.1°C, March runs -3.0°C.
March in San Sebastian averages a daytime high of 14.1°C and an overnight low of 6.7°C.
March runs -3.0°C compared to San Sebastian's annual average high of 17.1°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 14.1°C and cooler evenings around 6.7°C.