Montego Bay Weather in September
In Montego Bay, September brings very high daytime temperatures around 32°C (90°F), with nights cooling to 25°C (77°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in Montego Bay in September
Montego Bay is in the rainy season in September, with rain on around 14 days and an average of 214 mm (8.4 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Montego Bay in September
Daytime temperatures in Montego Bay reach 32°C (90°F) in September, dropping to 25°C (77°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Montego Bay in September
With approximately 210 hours of sunshine, the days are filled with clear skies during the day. Rain typically falls in the afternoon or evening, keeping mornings and early parts of the day sunny.
Average water temperature in September
The water reaches 29°C (84°F) this month. It's on the warm side, which suits people who prefer that, but don't expect a cooling dip if the air temperature is also high.September in Montego Bay has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Jamaica, check out our Montego Bay's climate page.
Montego Bay Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
32°C (90°F)
Water Temperature
29°C (84°F)
Chance of Rain
48%
Precipitation
214 mm (8.4 in)
Rainy days
14 days
Humidity
78%
Sunshine
210 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Montego Bay typically stay consistent throughout September, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Montego Bay in September
Browse day-by-day weather records for Montego Bay spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Montego Bay historical weather extremes in September
The extremes listed below come from historical weather data collected in Montego Bay from 2006 through 2025.
- Montego Bay recorded its highest September temperature of 35°C (95°F) on September 12, 2009.
- The lowest daytime temperature in September was 26°C (79°F), recorded on September 28, 2010.
- The lowest overnight temperature recorded in September was 22°C (72°F) (September 16, 2021).
- The wettest September day on record brought 96 mm (3.8 in) of precipitation to Montego Bay (September 29, 2007).
Best Places in Jamaica in September
Find out more about the weather in Jamaica and which places have the best travel conditions in this month. See all of Jamaica in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Montego Bay in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! The water temperature sits at about 29°C (84°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Montego Bay in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Jamaica, check out our Montego Bay's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Montego Bay climate overview or explore weather in Jamaica.
