Jolly Harbour Weather in September
September in Jolly Harbour brings high temperatures around 30°C (86°F) during the day, dropping to 27°C (81°F) at night, with quite a bit of rainfall expected, averaging around 139 mm (5.5 in) for the month.
Rainfall in Jolly Harbour in September
Climate statistics over the past 30 years suggest around 17 days of rain, with 139 mm (5.5 in) average for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Jolly Harbour in September
In September, expect high temperatures in Jolly Harbour, with highs of 30°C (86°F) and lows of 27°C (81°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 27°C (81°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.September in Jolly Harbour has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options 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 Antigua & Barbuda, check out our Jolly Harbour's climate page.
Jolly Harbour Temperature in September
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Chance of Rain
56%
Precipitation
139 mm (5.5 in)
Rainy days
17 days
Daily Historical Temperatures
47-year average (1976-2025)
Based on our historical records, temperatures in Jolly Harbour typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in September
Daily Historical Precipitation
47-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 Jolly Harbour in September
Browse day-by-day weather records for Jolly Harbour spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jolly Harbour historical weather extremes in September
Based on 29 years of weather observations in Jolly Harbour between 1996 and 2025, these are the recorded extremes.
- The warmest day in September was on September 20, 1998, with a maximum of 36°C (97°F).
- Jolly Harbour experienced its chilliest September day on September 3, 2009, reaching only 26°C (79°F).
- Jolly Harbour registered its coldest September night on September 14, 2018, with temperatures dropping to 22°C (72°F).
Best Places in Antigua & Barbuda in September
Find out more about the weather in Antigua & Barbuda and which places have the best travel conditions in this month. See all of Antigua & Barbuda in September →
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What to Wear in Jolly Harbour in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho.What To Do in Jolly Harbour 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 Antigua & Barbuda, check out our Jolly Harbour's climate page.
See the full Jolly Harbour climate overview or explore weather in Antigua & Barbuda.
