Basse-Terre Weather in September
Guadeloupe · September climate averages and travel tips
In September, Basse-Terre has average highs of 29°C (85°F) and lows of 28°C (82°F). The month is wet, with about 146 mm (5.7 in) of rain spread over 21 days, making it the third wettest month of the year. Humidity averages 78%, so it feels sticky and hotter than the thermometer suggests. You get roughly 12.1 hours of daylight and a mix of sun and cloud.
Is September a good time to visit Basse-Terre?
September is not the best time to visit Basse-Terre (4.2/10) mainly because of the rain. The weather is much better in January to April.
Visiting Basse-Terre in September
September weather
September feels warm, sticky and often showery in Basse-Terre. The high is 29°C and the low is 28°C, with rain on 21 days. August has the same rainfall, while October is wetter. Showers can interrupt a walk or leave paths slick, and the skies are cloudy more than half the time.
You can still enjoy a slow visit to Basse-Terre town, including its market and the historic Fort Delgrès. Keep plans flexible, and don't count on a clear view from La Soufrière. Heavy rain can make its trails muddy and streams rise quickly, so avoid heading into the forest during or just after downpours.
Events and quieter streets
The European Heritage Days take place in September across France, including Guadeloupe. They can bring special access or activities at historic sites; Fort Delgrès is a good place to ask about local events. Dates and openings vary each year.
If you hate crowds, September is a quieter time than the busy winter months, when many visitors come for drier weather. You'll likely find fewer people around Basse-Terre's sights, and accommodation prices are often lower than in high season. But the weather is a real trade-off: this is hurricane season, and storms can disrupt travel.
Make plans around the rain
Travelling with kids? Keep a town visit in reserve for a wet afternoon, rather than promising a full day at the falls or beach. The rain can make outdoor plans harder, but showers often leave room for a shorter outing when conditions ease.
For a practical local tip, check conditions before taking the Route de la Traversée through Guadeloupe National Park. It crosses lush forest, where rain can mean slippery paths and poor visibility. Ask locally about trail and road conditions, especially if you're heading toward La Soufrière. For the best odds of drier days, January to April is a better window.
September weather at a glance
| Average high | 29°C (85°F) |
|---|---|
| Average low | 28°C (82°F) |
| Daily mean | 29°C (83°F) |
| Rainfall | 146 mm (5.7 in) |
| Rainy days (1 mm+) | 21 |
| Humidity | 78% |
| Cloud cover | 56% |
| Daylight | 12.1 hours |
| Est. sunshine | 5.9 hours/day |
| Wind | 16.3 km/h |
| vs August | About as warm as August, with similar rainfall. |
What to pack for Basse-Terre in September
- light, breathable clothing
- sunscreen and a hat
- an umbrella or rain jacket
Basse-Terre weather in other months
← AugustBest time to visit Basse-TerreOctober →
Better weather in September nearby
- San Francisco, California24°C · 4 mm · Excellent
- Seattle, Washington21°C · 62 mm · Excellent
- Denver, Colorado29°C · 35 mm · Excellent
- Calgary20°C · 49 mm · Excellent
- Edmonton19°C · 41 mm · Excellent
- Toronto22°C · 62 mm · Excellent
Nearby in September
- Roseau29°C · 167 mm
- Plymouth29°C · 116 mm
- Saint John's29°C · 136 mm
- Fort-de-France29°C · 134 mm
- Basseterre29°C · 97 mm
- Castries29°C · 115 mm
Where else is good in September? See where to go in September.