Kiawah Island, South Carolina: vitamin D, best months and travel guide
Upscale barrier island with a wide beach. Best for: couples, golfers.
The best months for vitamin D in Kiawah Island are April to August, October, when a full dose takes about 6 minutes at midday. Too cool from November to March and rainy or stormy in September.
Kiawah Island month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Too cold | 3.9 h | 3.7 | 14 min | 16°C | 5/30 |
| February | Too cold | 5.0 h | 4.5 | 12 min | 17°C | 3/30 |
| March | Too cold | 6.4 h | 6.1 | 9 min | 21°C | 9/30 |
| April | Excellent | 8.0 h | 7.1 | 8 min | 23°C | 4/30 |
| May | Excellent | 8.2 h | 7.7 | 7 min | 27°C | 7/30 |
| June | Excellent | 9.4 h | 8.3 | 6 min | 30°C | 4/30 |
| July | Excellent | 9.1 h | 8.0 | 7 min | 31°C | 7/30 |
| August | Excellent | 7.1 h | 6.9 | 8 min | 30°C | 9/30 |
| September | Bad weather | 6.5 h | 6.1 | 9 min | 28°C | 8/30 |
| October | Good | 6.3 h | 5.5 | 10 min | 26°C | 2/30 |
| November | Too cold | 4.3 h | 4.0 | 13 min | 22°C | 7/30 |
| December | Too cold | 3.1 h | 3.2 | 17 min | 16°C | 5/30 |
Sun window is the number of hours a day with UV Index 2.5 or higher. Full dose is the minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, for skin type III. Rainy days are days with at least 1 mm out of 30.
What to expect in Kiawah Island
Upscale barrier island with a wide beach. Hot, humid summers, a long beach season from May to September, and hurricane risk from June to November. Beaches are wide and gently shelving.
In Kiawah Island afternoon highs average from 16°C in January to 31°C in July. The wettest month is March (about 9 rainy days out of 30) and the driest is October (2). Midday UV peaks at 8.3 in June, which is very strong, so protect your skin.
More about South Carolina · South Carolina in June · Best places in June
Questions about Kiawah Island
When is the best time to visit Kiawah Island for vitamin D?
The best months for vitamin D in Kiawah Island are April to August, October, when a full dose takes about 6 minutes at midday.
What is the weather like in Kiawah Island?
Afternoon highs average from 16°C in January to 31°C in July. The wettest month is March, with about 9 rainy days out of 30.
Which months should I avoid in Kiawah Island?
For a beach stay, avoid the months when it is too cool from November to March and rainy or stormy in September.