Best places for vitamin D in May

These sea-holiday destinations give the most vitamin D from sun in May, for light to medium skin (type III) at age 30. The ranking uses midday UV, clouds, heat and rain, and leaves out places that are too hot, too cold or in their rainy or storm season.

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#	Country	Best place	Rating	Sun window	Full dose	Afternoon high
1	Cape Verde	Santa Maria	Excellent	8.9 h	6 min	27°C
2	Honduras	Utila	Excellent	9.0 h	6 min	30°C
3	Saint Vincent and the Grenadines	Union Island	Excellent	8.7 h	6 min	29°C
4	Belize	Great Blue Hole	Excellent	9.0 h	6 min	29°C
5	Bahamas	Eleuthera	Excellent	9.2 h	6 min	30°C
6	Venezuela	Isla Margarita	Excellent	8.6 h	6 min	30°C
7	Mexico	Tulum	Excellent	9.1 h	6 min	32°C
8	Gambia	Serekunda	Excellent	8.5 h	6 min	30°C
9	Sint Maarten	Cupecoy	Excellent	8.9 h	6 min	28°C
10	Saint Barthélemy	Colombier	Excellent	9.0 h	6 min	28°C
11	Florida (USA)	Palm Beach	Excellent	8.9 h	6 min	31°C
12	Aruba	Arikok National Park	Excellent	8.6 h	6 min	31°C
13	Alabama (USA)	Orange Beach	Excellent	8.7 h	6 min	29°C
14	Texas (USA)	Padre Island National Seashore	Excellent	8.8 h	6 min	31°C
15	Cayman Islands	West Bay	Excellent	9.1 h	6 min	31°C
16	Saint Lucia	Anse Chastanet	Excellent	8.9 h	6 min	32°C
17	Anguilla	Sandy Ground	Excellent	9.0 h	6 min	28°C
18	Tunisia	Tunis	Excellent	9.0 h	7 min	27°C
19	Saint Martin	Grand Case	Excellent	9.0 h	6 min	28°C
20	Mississippi (USA)	Ocean Springs	Excellent	8.5 h	7 min	30°C
21	Antigua and Barbuda	Half Moon Bay	Excellent	9.0 h	6 min	31°C
22	Bermuda	Somerset Village	Excellent	9.0 h	7 min	22°C
23	Cyprus	Ayia Napa	Excellent	9.0 h	7 min	25°C
24	Curaçao	Jan Thiel	Excellent	8.6 h	6 min	31°C
25	British Virgin Islands	Anegada	Excellent	8.9 h	6 min	28°C

Sun window is the number of hours a day with UV Index 2.5 or higher. Full dose is the minutes at midday to make about 1,000 IU of vitamin D.

Not recommended in May

Too hot, too cold, rainy season or peak storm season:

Too hot: United Arab Emirates, Oman, Jordan, Thailand, Vietnam, Myanmar, Philippines, India

Too cold: France, Bulgaria, New Zealand, Uruguay, California (USA), Delaware (USA), New Jersey (USA), New York (USA), Massachusetts (USA), Rhode Island (USA), Maine (USA), Oregon (USA)

Bad weather: Seychelles, Cambodia, Malaysia, Singapore, Indonesia, Sri Lanka, Maldives, Japan, China, Australia, French Polynesia, Samoa, Tonga, Palau, Guam, Dominican Republic, Jamaica, Puerto Rico, U.S. Virgin Islands, Saint Kitts and Nevis, Costa Rica, Panama, Nicaragua, Colombia, Brazil, Hawaii (USA)

Best places for vitamin D in May

Not recommended in May

Other months