In September, Honiara typically sees daytime highs of 30.2°C and overnight lows around 22.5°C. Compared to the annual average high of 30.3°C, September runs -0.1°C.
September in Honiara averages a daytime high of 30.2°C and an overnight low of 22.5°C.
September runs -0.1°C compared to Honiara's annual average high of 30.3°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 30.2°C and cooler evenings around 22.5°C.