Trafalgar Weather in September

September in Trafalgar brings very high temperatures, with highs of 32°C (90°F) and nights dropping to 25°C (77°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.

Rainfall in Trafalgar in September

Trafalgar is in the rainy season in September, with rain on around 14 days and an average of 213 mm (8.4 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.

Temperature in Trafalgar in September

In September, expect very high temperatures in Trafalgar, with highs of 32°C (90°F) and lows of 25°C (77°F) at night. For most visitors, the main thing to prepare for is the heat during the day. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in Trafalgar in September

Enjoy a sunny month with about 210 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.

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.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Trafalgar. Our weather planner can help you explore destinations with more pleasant weather conditions.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Jamaica, check out our Trafalgar's climate page.

Trafalgar 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 213 mm (8.4 in)  

Rainy days 14 days  

Humidity 78% *  

Sunshine 210 hours *  

Percentage Sunshine *  

* Data from: Montego Bay, Jamaica (9 KM, 5 Miles).

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Trafalgar 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

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

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

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Trafalgar in September

Browse day-by-day weather records for Trafalgar spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

‹ 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 ›

‹ January February March April May June July August September October November December ›

Trafalgar historical weather extremes in September

Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in Trafalgar.

• Trafalgar recorded its highest September temperature of 35°C (95°F) on September 12, 2009.
• On September 28, 2010, Trafalgar saw its coldest September day with temperatures maxing out at 26°C (79°F).
• Trafalgar registered its coldest September night on September 16, 2021, with temperatures dropping to 22°C (72°F).
• The wettest day in September Trafalgar was on September 29, 2007 with 96 mm (3.8 in) of precipitation.

What to Wear in Trafalgar in September

Warm but pleasant conditions in Trafalgar in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Expect water temperatures of around 29°C (84°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Trafalgar in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Jamaica, check out our Trafalgar's climate page.

More climate data for Trafalgar

Temperature Rainfall Sunshine Humidity Water Temp

See the full Trafalgar climate overview or explore weather in Jamaica.