Avg weather in September
12 Hrs per day
120 mm per month
80 % avg
5 Mph avg


What’s the weather like in Jamaica in September?

Located in the West Indies to the south of Cuba and west of Haiti, Jamaica’s the third largest island in the Caribbean. It has tropical weather with high temperatures all year round although September is one of the island’s wettest months. It often rains in short, heavy downpours which can quickly clear to leave clear blue skies. The surrounding sea will keep you cool on the coast thanks to its pleasant breezes.


The average high in Montego Bay is 31ºC in September so it’s great if you love the heat. Things stay nice and warm in the evenings with temperatures only cooling to 23ºC. The sea is normally around 29ºC, which is perfect for swimming, while humidity’s high. There’s 229mm of rain over 14 days, although you can still expect 12 hours of daylight with seven hours of sunshine each day. UV levels will be extremely high so make sure you’re using lots of sun cream, and sunset’s just before 6.30pm at the start of the month.

View weather for