In August, Basel typically sees daytime highs of 23.2°C and overnight lows around 12.6°C. Compared to the annual average high of 13.9°C, August runs +9.2°C.
August in Basel averages a daytime high of 23.2°C and an overnight low of 12.6°C.
August runs +9.2°C compared to Basel's annual average high of 13.9°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 23.2°C and cooler evenings around 12.6°C.