September in Fujisawa averages a daily high of 27.5°C. Expect roughly 12.4 wet days totalling 241.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Fujisawa is April–June.
Based on YOKOHAMA, JA (18.3km), 1995–2024. 25 years of September data.