October in Portmore averages a daily high of 32.8°C with nights around 24.5°C. Expect roughly 10.3 wet days totalling 175.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Portmore is December–April.
Based on NORMAN MANLEY INTERNATIONAL, JM (11.2km), 1995–2024. 14 years of October data.