In September, Espoo typically sees daytime highs of 14.1°C and overnight lows around 8.6°C. Compared to the annual average high of 7.7°C, September runs +6.4°C.
September in Espoo averages a daytime high of 14.1°C and an overnight low of 8.6°C.
September runs +6.4°C compared to Espoo's annual average high of 7.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 14.1°C and cooler evenings around 8.6°C.