Jamaica weather

Our guide to the weather in Jamaica during September

30

Average high

6

UV Index

156mm

Month rainfall

30

Sea temperature

We've looked at the most up-to-date weather data for Jamaica, covering the last 12 years up to 2021, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Jamaica weather in September.

How hot is it in Jamaica during September?

Expect heat in Jamaica during September. The temperature hits about 30℃ during the day, falling away to a balmy 24℃ at night. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.

Does it rain in Jamaica during September?

On average, there will be 27 rainy days during the month, amounting to 155.5mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. Due to the high temperature and humidity, you might expect lots of thunderstorms, however they're actually fairly infrequent at this time of year. On average, September will see just 4 days that produce a storm.

How warm is the sea in Jamaica during September?

The water around Jamaica reaches a very pleasant 30℃ during September. This is very warm, and will feel bath-like. People who normally feel the cold will find this temperature perfectly acceptable. The hot air temperature and relatively high humidity will mean that you will feel comfortably warm when coming out of the water.

Weather in Jamaica

Our month-by-month guide to the weather and climate in Jamaica

27.3

Jamaica weather in

January
27.4

Jamaica weather in

February
27.7

Jamaica weather in

March
28.5

Jamaica weather in

April
28.7

Jamaica weather in

May
29.3

Jamaica weather in

June
30.0

Jamaica weather in

July
30.2

Jamaica weather in

August
30.1

Jamaica weather in

September
29.2

Jamaica weather in

October
28.4

Jamaica weather in

November
27.7

Jamaica weather in

December