Harbour Island Weather in September
Harbour Island in September averages 30°C (86°F) during the day and 27°C (81°F) at night. This is the wettest month of the year.
Rainfall in Harbour Island in September
The month brings the heaviest rain of the year, often in intense bursts. Make sure to have a poncho to stay dry during the showers. On average, there are about 22 days with rain during this month, averaging 161 mm (6.3 in). Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Harbour Island in September
September in Harbour Island brings high temperatures, with highs of 30°C (86°F) and nights around 27°C (81°F). Overall, the month follows a fairly predictable daily temperature pattern. With lows of 27°C (81°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.September in Harbour Island 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 the Bahamas, check out our Harbour Island's climate page.
Harbour Island Temperature in September
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Chance of Rain
73%
Precipitation
161 mm (6.3 in)
Rainy days
22 days
Historical weather for Harbour Island in September
Browse day-by-day weather records for Harbour Island spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Harbour Island historical weather extremes in September
Based on 19 years of weather observations in Harbour Island between 2006 and 2025, these are the recorded extremes.
- On September 29, 2022, temperatures climbed to 33°C (91°F), marking the warmest September day on record.
- Harbour Island experienced its chilliest September day on September 7, 2018, reaching only 27°C (81°F).
- The coldest night in September in Harbour Island was on September 15, 2020, with a minimum of 10°C (50°F).
Best Places in the Bahamas in September
Find out more about the weather in the Bahamas and which places have the best travel conditions in this month. See all of the Bahamas in September →
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What to Wear in Harbour Island 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). Also bring a poncho, it will rain a lot! Waterproof everything you can.What To Do in Harbour Island 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 the Bahamas, check out our Harbour Island's climate page.
See the full Harbour Island climate overview or explore weather in the Bahamas.
