Weather in Montego Bay in September 2025
- September is usually the hottest month of the year in Montego Bay;
Average weather
Average temperature in Montego Bay in September
Going from a maximum of +91°F during the day to a minimum of +77°F during the night, the temperature in September averages around +90°F.
The average maximum temperature goes down 25% by the end of the month, compared with the beginning of the month, from +91°F to +88°F.
Is Montego Bay warm or cold in September?
Montego Bay is typically hot in September.
Maximum temperatures go up compared to the previous month from +88°F to +88°F. The minimum temperature also goes up from +77°F to +77°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
September is the hottest month in Montego Bay, here is the comparison with other months:
Water temperature in Montego Bay in September
Water in Montego Bay in September is Very warm. It varies from +84°F to +88°F, with an average of +86°F. This is almost similar to the air temperature, which averages +88°F.
The water temperature in September is one of the warmest of the entire year:
Can you swim in Montego Bay in September?
Climate in Montego Bay in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +88°F | +88°F | +86°F | ||||
| Min. temperature | ||||||
| +73°F | +72°F | +72°F | ||||
| Max. temperature | ||||||
| +93°F | +91°F | +91°F | ||||
| Rainfall | ||||||
| 153 mm | 176 mm | 158 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +86°F | +86°F | +85°F | ||||
| Humidity | ||||||
| 78% | 79% | 80% | ||||
| Air pressure | ||||||
| 1013 HPa | 1011 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 1 | 0 | 1 | ||||
| Rainy days | ||||||
| 13 | 10 | 14 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. The temperature levels stay the same in the area of +88°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 153 mm to 176 mm. Humidity rises from 78% to 79%. The average wind speed doesn’t change much during September, staying around 2 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Montego Bay is gradually decreasing during September, going from 4 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Montego Bay?
Climate Change Over the Years
The climate in Montego Bay in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1996 (+84°F) and the highest in 2023 (+86°F). The driest year was 1997 with only 1001 mm of rainfall, and the wettest year was 2007 with 1587 mm.
FAQ
Is September a good time to visit Montego Bay?
Can you sunbathe in Montego Bay in September?
Can you swim in Montego Bay in September?
Is Montego Bay rainy in September?
Is it sunny in Montego Bay in September?
Other cities in Jamaica
Monthly weather in Montego Bay
Source of the data
For this page, we’ve looked at the typical weather in Montego Bay, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.