In August, Terni typically sees daytime highs of 29.6°C and overnight lows around 15.5°C. Compared to the annual average high of 18.4°C, August runs +11.2°C.
August in Terni averages a daytime high of 29.6°C and an overnight low of 15.5°C.
August runs +11.2°C compared to Terni's annual average high of 18.4°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 29.6°C and cooler evenings around 15.5°C.