Weather in The Battery, Charleston, United States in September

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Visiting The Battery, Charleston, United States in September

September is one of the best months to visit The Battery for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in September is cooler than the previous month and temperatures continue to drop into October. September has average maximum temperatures of 30°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.9hrs making the days long and bright.

September has total rainfall of 14.5cm (5.7inches) making it quite dry with only moderate showers. There are just 9.8 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

Sea temperatures are a very warm 28°C (82°F). September is an excellent month for swimming in The Battery with very comfortable temperatures for bathing all day. The sea temperature in September is marginally cooler than the previous month and temperatures continue to drop into October.

September at The Battery, Charleston offers warm weather and sunny days, making it an enjoyable time for swimming, sunbathing, and beach activities. Water sports such as snorkeling, diving, surfing, windsurfing, and kitesurfing remain popular during this month due to the warm water temperatures and favorable wind and wave conditions. Also consider visiting The Battery in one of the other best months of June, July, August, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in The Battery in September?

Yes, September is a great time for sunbathing in The Battery.

September has average maximum temperatures of 30°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.9hrs making the days long and bright. September has total rainfall of 14.5cm (5.7inches) making it quite dry with only moderate showers. There are just 9.8 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

More about September temperature and sunshine.

Can you swim in The Battery in September?

Yes, September is an excellent month for swimming in The Battery with very warm sea temperatures 28°C (82°F).

More about September sea temperatures.

Is September a good time to holiday in The Battery?

Yes, September is a great time for a holiday in The Battery.

September has average maximum temperatures of 30°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.9hrs making the days long and bright. September has total rainfall of 14.5cm (5.7inches) making it quite dry with only moderate showers. There are just 9.8 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. Sea temperatures are a very warm 28°C (82°F). September is an excellent month for swimming in The Battery with very comfortable temperatures for bathing all day.

More about the September temperatures and sunshine.

Is The Battery warm in September?

Yes, The Battery is very warm and perfect for sunbathing on clear days in September.

The average maximum temperature in The Battery in September is 30°C (85°F). The average maximum temperature is 32°C (89°) in the previous month and 26°C (78°F) in the next month.

The average temperature in The Battery in September is 25°C (77°F). The average temperature is 28°C (82°F) in the previous month and 20°C (68°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is The Battery in September?

The average day light hours per day in The Battery in September are 12.4. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.9hrs making the days long and bright.

More about September sunshine.

Crowds in The Battery in September

September sees a decline in beach visitors, as the weather begins to cool down and school resumes. Average temperatures are around 78°F, and the beach at The Battery will be less crowded than in the peak summer months. Labor Day weekend can still draw larger crowds, but overall, the beach will be less busy.

Temperature in The Battery in September

The weather in September is cooler than the previous month and temperatures continue to drop into October. The average maximum temperature in The Battery in September is 30°C (85°F). The average maximum temperature is 32°C (89°F) in the previous month and 26°C (78°F) in the next month.

The average temperature in The Battery in September is 25°C (77°F). The average temperature is 28°C (82°F) in the previous month and 20°C (68°F) in the next month.

The average minimum temperature in The Battery in September is 21°C (70°F). The minimum temperature is 24°C (75°F) in the previous month and 15°C (59°F) in the next month.

Sunshine in The Battery in September

The days in September are slightly shorter than the previous month and days continue to get slightly shorter into October. September has fewer hours of sunshine than the previous month and hours of sunshine continue to drop into October. During September the average day light hours are 12.4 per day in The Battery. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.9hrs making the days long and bright.

The ultraviolet index in The Battery in September is typically 8.7 during September. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. 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 The Battery in September

The average sea water temperature in The Battery in September is 27.8°C (82.0°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in September is marginally cooler than the previous month and temperatures continue to drop into October.

Rainfall in The Battery in September

September weather is marginally drier than the previous month and rainfall continues to drop into October. September has a couple of less days of rain than the previous month and rainy days continue to drop into October. The average total rainfall in The Battery in September is 14.5cm (5.7inches) and on average there are 9.8 rainy days in September making it a quite rainy time to visit the beach.

Humidity in The Battery in September

The maximum dew point (an indicator of humidity) in The Battery in September is 23°C (73°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan. The dew point is 26°C (78°F) in the previous month and 18°C (18°F) in the next month.

The average maximum relative humidity in The Battery in September is typically 95.3%. The maximum relative humidity is 95.9% in the previous month and 94.6% in the next month.

The average relative humidity in The Battery in September is typically 80.5%. The average relative humidity is 80.9% in the previous month and 75.7% in the next month.

Wind Speed in The Battery in September

The average maximum wind speed in The Battery in September is typically 21KM/H (13MPH). The average maximum wind speed is 22KM/H (13MPH) in the previous month and 21KM/H (13MPH) in the next month.

The average wind speed in The Battery in September is typically 8KM/H (5MPH). The average wind speed is 7KM/H (4MPH) in the previous month and 8KM/H (5MPH) in the next month.

The average wind direction in The Battery in September is from the East-Northeast.

Monthly Averages

Suggested Beaches in September

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Need Inspiration?

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