Basse-Terre Weather in September

Guadeloupe · September climate averages and travel tips

Avg high29°C (85°F)
Avg low28°C (82°F)
Rainfall146 mm (5.7 in)
RatingPoor 4.2/10

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 high29°C (85°F)
Average low28°C (82°F)
Daily mean29°C (83°F)
Rainfall146 mm (5.7 in)
Rainy days (1 mm+)21
Humidity78%
Cloud cover56%
Daylight12.1 hours
Est. sunshine5.9 hours/day
Wind16.3 km/h
vs AugustAbout as warm as August, with similar rainfall.

What to pack for Basse-Terre in September

Basse-Terre weather in other months

Jan27°C / 26°C46 mmExcellentFeb27°C / 25°C33 mmExcellentMar27°C / 25°C34 mmExcellentApr28°C / 26°C60 mmExcellentMay28°C / 27°C89 mmFairJun29°C / 27°C111 mmFairJul29°C / 28°C126 mmPoorAug29°C / 28°C146 mmPoorSep29°C / 28°C146 mmPoorOct29°C / 28°C168 mmPoorNov28°C / 27°C126 mmFairDec28°C / 26°C66 mmGood

← AugustBest time to visit Basse-TerreOctober →

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