Weather in Charleston, United States in May

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Visiting Charleston, United States in May

The weather in May is much warmer than the previous month and temperatures continue to rise quickly into June. May has average maximum temperatures of 28°C (82°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 47% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.5 hours of sunshine per day. It is a good time for sunbathing in Charleston.

May has total rainfall of 11.1cm (4.4inches) making it quite dry with only moderate showers. There are just 7.5 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

Sea temperatures are a warm 23°C (74°F). May is a good month for swimming in Charleston with comfortable temperatures for most people. The sea temperature in May is warmer than the previous month and temperatures continue to rise quickly into June.

Consider visiting Charleston 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 in May?

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

May has average maximum temperatures of 28°C (82°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 47% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.5 hours of sunshine per day. May has total rainfall of 11.1cm (4.4inches) making it quite dry with only moderate showers. There are just 7.5 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 in May?

Yes, May is a good month for swimming in Charleston with warm sea temperatures 23°C (74°F).

More about May sea temperatures.

Is May a good time to holiday in Charleston?

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

May has average maximum temperatures of 28°C (82°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 47% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.5 hours of sunshine per day. May has total rainfall of 11.1cm (4.4inches) making it quite dry with only moderate showers. There are just 7.5 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. Sea temperatures are a warm 23°C (74°F). May is a good month for swimming in Charleston with comfortable temperatures for most people.

More about the May temperatures and sunshine.

Is Charleston warm in May?

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

The average maximum temperature in Charleston in May is 28°C (82°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 in May is 23°C (74°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 in May?

The average day light hours per day in Charleston in May are 13.8. The sunshine percentage is 47% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.5 hours of sunshine per day.

More about May sunshine.

Temperature in Charleston in May

The weather in May is much warmer than the previous month and temperatures continue to rise quickly into June. The average maximum temperature in Charleston in May is 28°C (82°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 in May is 23°C (74°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 in May is 19°C (66°F). The minimum temperature is 14°C (58°F) in the previous month and 23°C (73°F) in the next month.

Sunshine in Charleston in May

The days in May are longer than the previous month and the days continue to get marginally longer into June. May has more hours of sunshine than the previous month and hours of sunshine continue to rise at a fast pace into June. During May the average day light hours are 13.8 per day in Charleston. The sunshine percentage is 47% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.5 hours of sunshine per day.

The ultraviolet index in Charleston 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 in May

The average sea water temperature in Charleston in May is 23.2°C (73.8°F) which is warm and pleasant for relaxing and swimming for long periods. The sea temperature in May is warmer than the previous month and temperatures continue to rise quickly into June.

Rainfall in Charleston in May

May weather is wetter than the previous month and rainfall continues to rise slightly into June. May has fewer days of rain than the previous month. The average total rainfall in Charleston in May is 11.1cm (4.4inches) and on average there are 7.5 rainy days in May making it a quite rainy time to visit the beach.

Humidity in Charleston in May

The maximum dew point (an indicator of humidity) in Charleston in May is 20°C (69°F) which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 17°C (62°F) in the previous month and 24°C (24°F) in the next month.

The average maximum relative humidity in Charleston in May is typically 93.9%. The maximum relative humidity is 94.9% in the previous month and 93.7% in the next month.

The average relative humidity in Charleston in May is typically 75%. The average relative humidity is 73.8% in the previous month and 75.7% in the next month.

Wind Speed in Charleston in May

The average maximum wind speed in Charleston 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 in May is typically 11KM/H (7MPH). The average wind speed is 12KM/H (7MPH) in the previous month and 9KM/H (6MPH) in the next month.

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

Monthly Averages

Suggested Beaches in May

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.