Weather in Charleston County, United States in May

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Visiting Charleston County, United States in May

May has average maximum temperatures of 27°C (81°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 57.2% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.9 hours of sunshine per day. May has total rainfall of 9.1cm (3.6inches) making it mostly dry with only light showers. There are just 8.7 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. It is a good time for sunbathing in Charleston County. Sea temperatures are a warm 22°C (72°F). May is a good month for swimming in Charleston County with comfortable temperatures for most people.

Consider visiting Charleston County in the months of June, July, August, September, for the best beach weather.

Also consider one of our other suggestions for May.

Can you sunbathe in Charleston County in May?

Yes, May is a good time for sunbathing in Charleston County.

May has average maximum temperatures of 27°C (81°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 57.2% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.9 hours of sunshine per day. May has total rainfall of 9.1cm (3.6inches) making it mostly dry with only light showers. There are just 8.7 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

More about May temperature and sunshine.

Can you swim in Charleston County in May?

Yes, May is a good month for swimming in Charleston County with warm sea temperatures 22°C (72°F).

More about May sea temperatures.

Is May a good time to holiday in Charleston County?

Yes, May is a great time for a holiday in Charleston County.

May has average maximum temperatures of 27°C (81°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 57.2% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.9 hours of sunshine per day. May has total rainfall of 9.1cm (3.6inches) making it mostly dry with only light showers. There are just 8.7 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. It is a good time for sunbathing in Charleston County. Sea temperatures are a warm 22°C (72°F). May is a good month for swimming in Charleston County with comfortable temperatures for most people.

More about the May temperatures and sunshine.

Is Charleston County warm in May?

Yes, Charleston County is very warm and perfect for sunbathing on clear days in May.

The average maximum temperature in Charleston County in May is 27°C (81°F). The average maximum temperature is 24°C (75°) in the previous month and 31°C (88°F) in the next month.

The average temperature in Charleston County in May is 23°C (73°F). The average temperature is 19°C (66°F) in the previous month and 27°C (80°F) in the next month.

More info about the May temperatures and sunshine.

How sunny is Charleston County in May?

The average day light hours per day in Charleston County in May are 13.8. The sunshine percentage is 57.2% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.9 hours of sunshine per day.

More about May sunshine.

Temperature in Charleston County in May

The average maximum temperature in Charleston County in May is 27°C (81°F). The average maximum temperature is 24°C (75°F) in the previous month and 31°C (88°F) in the next month.

The average temperature in Charleston County in May is 23°C (73°F). The average temperature is 19°C (66°F) in the previous month and 27°C (80°F) in the next month.

The average minimum temperature in Charleston County in May is 19°C (66°F). The minimum temperature is 14°C (57°F) in the previous month and 23°C (73°F) in the next month.

Sunshine in Charleston County in May

During May the average day light hours are 13.8 per day in Charleston County. The sunshine percentage is 57.2% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.9 hours of sunshine per day.

The ultraviolet index in Charleston County in May is typically 10.5 during May. 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 Charleston County in May

The average sea water temperature in Charleston County in May is 22.1°C (71.8°F) which is warm and pleasant for relaxing and swimming for long periods.

Rainfall in Charleston County in May

The average total rainfall in Charleston County in May is 9.1cm (3.6inches) and on average there are 8.7 rainy days in May making it a quite rainy time to visit the beach.

Humidity in Charleston County in May

The maximum dew point (an indicator of humidity) in Charleston County in May is 20°C (68°F) which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 16°C (61°F) in the previous month and 24°C (24°F) in the next month.

The average maximum relative humidity in Charleston County in May is typically 92.7%. The maximum relative humidity is 93.1% in the previous month and 92.5% in the next month.

The average relative humidity in Charleston County in May is typically 74.4%. The average relative humidity is 72.7% in the previous month and 75% in the next month.

Wind Speed in Charleston County in May

The average maximum wind speed in Charleston County in May is typically 25KM/H (16MPH). 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 Charleston County in May is typically 11KM/H (7MPH). The average wind speed is 12KM/H (7MPH) in the previous month and 10KM/H (6MPH) in the next month.

The average wind direction in Charleston County in May is from the South.

Monthly Averages

Suggested Beaches in May

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