Weather in Baie de Saint Jean, Saint Barthelemy in September

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Visiting Baie de Saint Jean, Saint Barthelemy in September

The weather in September is slightly warmer than the previous month. September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 59% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day. It is a good time for sunbathing in Baie de Saint Jean.

September has total rainfall of 14.5cm (5.7inches) making it a bit rainy but with only moderate tropical showers. There are 17.3 days with some rainfall so you can still enjoy the beach on the clear days.

Sea temperatures are a very warm 28°C (83°F). September is an excellent month for swimming in Baie de Saint Jean with very comfortable temperatures for bathing all day.

September is the peak of the hurricane season, which may bring more rain and storms. Despite the unpredictable weather, visitors can still enjoy swimming, sunbathing, snorkeling, and diving on calmer days. Windsurfing and kitesurfing may be less popular during this month due to the increased storm activity. Consider visiting Baie de Saint Jean in the months of January, February, March, April, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in Baie de Saint Jean in September?

Yes, September is a good time for sunbathing in Baie de Saint Jean.

September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 59% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day. September has total rainfall of 14.5cm (5.7inches) making it a bit rainy but with only moderate tropical showers. There are 17.3 days with some rainfall so you can still enjoy the beach on the clear days.

More about September temperature and sunshine.

Can you swim in Baie de Saint Jean in September?

Yes, September is an excellent month for swimming in Baie de Saint Jean with very warm sea temperatures 28°C (83°F).

More about September sea temperatures.

Is September a good time to holiday in Baie de Saint Jean?

Yes, September is a good time for a holiday in Baie de Saint Jean.

September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 59% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day. September has total rainfall of 14.5cm (5.7inches) making it a bit rainy but with only moderate tropical showers. There are 17.3 days with some rainfall so you can still enjoy the beach on the clear days. It is a good time for sunbathing in Baie de Saint Jean. Sea temperatures are a very warm 28°C (83°F). September is an excellent month for swimming in Baie de Saint Jean with very comfortable temperatures for bathing all day.

More about the September temperatures and sunshine.

Is Baie de Saint Jean warm in September?

Yes, Baie de Saint Jean is very hot and perfect for sunbathing on clear days in September.

The average maximum temperature in Baie de Saint Jean in September is 31°C (88°F). The average maximum temperature is 31°C (88°) in the previous month and 31°C (87°F) in the next month.

The average temperature in Baie de Saint Jean in September is 29°C (83°F). The average temperature is 29°C (83°F) in the previous month and 28°C (83°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Baie de Saint Jean in September?

The average day light hours per day in Baie de Saint Jean in September are 12.2. The sunshine percentage is 59% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day.

More about September sunshine.

Crowds in Baie de Saint Jean in September

September is a quiet month at Baie de Saint Jean, with fewer tourists visiting the beach. The weather is generally warm, but there may be some rain showers. There are no public holidays or special events during this month, making it a more peaceful time to visit the beach.

Temperature in Baie de Saint Jean in September

The weather in September is slightly warmer than the previous month. The average maximum temperature in Baie de Saint Jean in September is 31°C (88°F). The average maximum temperature is 31°C (88°F) in the previous month and 31°C (87°F) in the next month.

The average temperature in Baie de Saint Jean in September is 29°C (83°F). The average temperature is 29°C (83°F) in the previous month and 28°C (83°F) in the next month.

The average minimum temperature in Baie de Saint Jean in September is 27°C (80°F). The minimum temperature is 26°C (80°F) in the previous month and 26°C (78°F) in the next month.

Sunshine in Baie de Saint Jean in September

The days in September are marginally shorter than the previous month and days continue to get marginally shorter into October. During September the average day light hours are 12.2 per day in Baie de Saint Jean. The sunshine percentage is 59% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day.

The ultraviolet index in Baie de Saint Jean in September is typically 12.4 during September. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Baie de Saint Jean in September

The average sea water temperature in Baie de Saint Jean in September is 28.2°C (82.8°F) which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in Baie de Saint Jean in September

September weather is slightly wetter than the previous month. September has fewer days of rain than the previous month. The average total rainfall in Baie de Saint Jean in September is 14.5cm (5.7inches) and on average there are 17.3 rainy days in September making it a wet time to visit the beach.

Humidity in Baie de Saint Jean in September

The maximum dew point (an indicator of humidity) in Baie de Saint Jean in September is 24°C (76°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning. The dew point is 24°C (76°F) in the previous month and 24°C (24°F) in the next month.

The average maximum relative humidity in Baie de Saint Jean in September is typically 82.5%. The maximum relative humidity is 82.5% in the previous month and 83.5% in the next month.

The average relative humidity in Baie de Saint Jean in September is typically 73.3%. The average relative humidity is 73% in the previous month and 74.2% in the next month.

Wind Speed in Baie de Saint Jean in September

The average maximum wind speed in Baie de Saint Jean in September is typically 22KM/H (14MPH). The average maximum wind speed is 27KM/H (17MPH) in the previous month and 24KM/H (15MPH) in the next month.

The average wind speed in Baie de Saint Jean in September is typically 13KM/H (8MPH). The average wind speed is 16KM/H (10MPH) in the previous month and 14KM/H (8MPH) in the next month.

The average wind direction in Baie de Saint Jean in September is from the East-Southeast.

Monthly Averages

Suggested Beaches in September

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