In September, Isna typically sees daytime highs of 37.8°C and overnight lows around 22.4°C. Compared to the annual average high of 32.7°C, September runs +5.1°C.
September in Isna averages a daytime high of 37.8°C and an overnight low of 22.4°C.
September runs +5.1°C compared to Isna's annual average high of 32.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 37.8°C and cooler evenings around 22.4°C.