Oyster Pond Weather in September

Thinking of visiting Oyster Pond in September? Expect high temperatures reaching 30°C (86°F) during the day, dropping to 27°C (81°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Oyster Pond in September

Past climate data indicates that roughly 19 days will see rain, totalling around 134 mm (5.3 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Oyster Pond in September

In September, Oyster Pond gets high temperatures, with highs of 30°C (86°F). Nights cool to around 27°C (81°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights are warm at 27°C (81°F), which can make sleeping uncomfortable. Keeping windows open or using a fan can help. A cold shower before bed is also a good way to cool down.

Sunshine in Oyster Pond in September

The month enjoys around 232 hours of sunshine, creating mostly sunny days with good weather conditions.

Wind Speed in Oyster Pond in September

Wind speeds average 5 m/s (10 knots) during September. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.

Average water temperature in September

With water at 29°C (84°F), conditions are warm and calm. Perfect for those who like tropical water temperatures, though it won't cool you down much.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Oyster Pond. Our weather planner can help you explore destinations with more pleasant weather conditions.

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For a detailed overview over the year and the best time to visit Saint Martin, check out our Oyster Pond's climate page.

Oyster Pond Temperature in September

Min Temperature 27°C (81°F)  

Max Temperature 30°C (86°F)  

Water Temperature 29°C (84°F) *  

Chance of Rain 62%  

Precipitation 134 mm (5.3 in)  

Rainy days 19 days  

Humidity 78% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 232 hours *  

Percentage Sunshine 61% *  

* Data from: Sint Maarten, Sint Maarten (10 KM, 6 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Oyster Pond typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 27°C (81°F).

Average temperatures in September

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Historical weather for Oyster Pond in September

Browse day-by-day weather records for Oyster Pond spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Oyster Pond historical weather extremes in September

Based on weather observations in Oyster Pond between 1990 and 2025, these are the recorded extremes during September.

• The warmest day in September was on September 3, 1992, with a maximum of 36°C (97°F).
• On September 21, 2008, Oyster Pond saw its coldest September day with temperatures maxing out at 27°C (81°F).
• Oyster Pond registered its coldest September night on September 30, 2017, with temperatures dropping to 22°C (72°F).

What to Wear in Oyster Pond 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. 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 Oyster Pond in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Saint Martin, check out our Oyster Pond's climate page.

More climate data for Oyster Pond

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Oyster Pond climate overview or explore weather in Saint Martin.