In September, Jaffna typically sees daytime highs of 31.7°C and overnight lows around 25.1°C. Compared to the annual average high of 31.0°C, September runs +0.7°C.
September in Jaffna averages a daytime high of 31.7°C and an overnight low of 25.1°C.
September runs +0.7°C compared to Jaffna's annual average high of 31.0°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 31.7°C and cooler evenings around 25.1°C.