In September, Miri typically sees daytime highs of 31.1°C and overnight lows around 23.4°C. Compared to the annual average high of 30.8°C, September runs +0.3°C.
September in Miri averages a daytime high of 31.1°C and an overnight low of 23.4°C.
September runs +0.3°C compared to Miri's annual average high of 30.8°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 31.1°C and cooler evenings around 23.4°C.