In September, Sasebo typically sees daytime highs of 27.4°C and overnight lows around 20.8°C. Compared to the annual average high of 19.9°C, September runs +7.6°C.
September in Sasebo averages a daytime high of 27.4°C and an overnight low of 20.8°C.
September runs +7.6°C compared to Sasebo's annual average high of 19.9°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 27.4°C and cooler evenings around 20.8°C.