In September, Tarnow typically sees daytime highs of 19.6°C and overnight lows around 8.3°C. Compared to the annual average high of 13.1°C, September runs +6.5°C.
September in Tarnow averages a daytime high of 19.6°C and an overnight low of 8.3°C.
September runs +6.5°C compared to Tarnow's annual average high of 13.1°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 19.6°C and cooler evenings around 8.3°C.