Basse-Terre Weather in September
September in Basse-Terre sees daytime temperatures around 29°C (84°F) and lows of 26°C (79°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.
Rainfall in Basse-Terre in September
Expect frequent showers this month, so make sure to have an umbrella to keep yourself dry. Past climate data indicates that roughly 22 days will see rain, totalling around 127 mm (5 in) 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 Basse-Terre in September
If you're visiting Basse-Terre in September, expect highs of 29°C (84°F) and overnight lows around 26°C (79°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 26°C (79°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.
Sunshine in Basse-Terre in September
Expect sunny days throughout the month, with an estimated 218 hours of sunshine. This makes it a pleasant time to visit Basse-Terre.September in Basse-Terre 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 Guadeloupe, check out our Basse-Terre's climate page.
Basse-Terre Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Chance of Rain
72%
Precipitation
127 mm (5 in)
Rainy days
22 days
Humidity
82% *
Sunshine
218 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Basse-Terre typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Historical weather for Basse-Terre in September
Browse day-by-day weather records for Basse-Terre spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Basse-Terre historical weather extremes in September
Based on 35 years of weather observations in Basse-Terre between 1990 and 2025, these are the recorded extremes.
- Basse-Terre recorded its highest September temperature of 34°C (93°F) on September 19, 1999.
- The coldest September day was on September 14, 2004, with a maximum of 26°C (79°F).
- The lowest overnight temperature recorded in September was 20°C (68°F) (September 6, 2013).
Best Places in Guadeloupe in September
Find out more about the weather in Guadeloupe and which places have the best travel conditions in this month. See all of Guadeloupe in September →
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What to Wear in Basse-Terre 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Basse-Terre 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 Guadeloupe, check out our Basse-Terre's climate page.
Temperature Rainfall Sunshine Humidity
See the full Basse-Terre climate overview or explore weather in Guadeloupe.
