Le Robert Weather in September
During September, Le Robert experiences high daytime temperatures of 30°C (86°F) and cooler nights around 26°C (79°F). Expect quite a bit of rainfall. Around 158 mm (6.2 in) is typical.
Rainfall in Le Robert in September
The climate data from previous years indicates about 27 days of rain, averaging 158 mm (6.2 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Le Robert in September
September in Le Robert brings typical temperatures with highs around 30°C (86°F) and lows of 26°C (79°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Le Robert in September
The city usually sees around 219 hours of sunlight, indicating many sunny days — a great month for sightseeing.
Wind Speed in Le Robert in September
Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.
Average water temperature in September
At 29°C (84°F), the water feels bath-warm. Fine for swimming, but those looking for a cooling swim may be a bit disappointed.September in Le Robert 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 Martinique, check out our Le Robert's climate page.
Le Robert Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Water Temperature
29°C (84°F) *
Chance of Rain
89%
Precipitation
158 mm (6.2 in)
Rainy days
27 days
Humidity
85% *
Windspeed
4 m/s (8 knots) *
Sunshine
219 hours *
Percentage Sunshine
*
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in Le Robert typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Historical weather for Le Robert in September
Browse day-by-day weather records for Le Robert spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Le Robert historical weather extremes in September
Based on 26 years of weather observations (1999-2025), these are the most extreme conditions recorded in Le Robert.
- On September 12, 2023, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
- Le Robert experienced its chilliest September day on September 18, 2008, reaching only 26°C (79°F).
- Le Robert registered its coldest September night on September 20, 2021, with temperatures dropping to 21°C (70°F).
Best Places in Martinique in September
Find out more about the weather in Martinique and which places have the best travel conditions in this month. See all of Martinique in September →
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What to Wear in Le Robert in September
Warm but pleasant conditions in Le Robert in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. With water temperatures around 29°C (84°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Le Robert 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 Martinique, check out our Le Robert's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Le Robert climate overview or explore weather in Martinique.
