Vitamin D in Bahamas in December: sun, UV and what to expect

Good Good. A full dose takes about 11 minutes at midday, and the usable window is about 5.1 hours a day.

5.1 hsun window (UV 2.5+)

4.7peak UV Index

11 minto a full dose

26°Cafternoon high

5/30rainy days

25/30sunny days

Best places in Bahamas in December: Exuma (good), Eleuthera (good), Harbour Island (good), Nassau (good), Paradise Island (good).

Open Bahamas for December on the map Find stays in Bahamas

How long in the sun in December?

Plan your sun session around midday (roughly 11:00 to 15:00), when the UV Index peaks at about 4.7. With about a quarter of your skin bare, a full dose takes around 11 minutes for skin type III at age 30, and about 21 minutes at age 65.
Stop well before your skin turns pink. At this UV level skin type III can start to burn after about 43 minutes of midday sun, so cover up, find shade and use SPF 30+ on skin that stays out.
Water, sand and light surfaces reflect UV, so at the beach you get a little more sun than the number suggests, for the good and the bad.

Skin type	Full dose, age 30	Full dose, age 65	Time to burn
Type I	8 min	14 min	28 min
Type II	9 min	18 min	35 min
Type III	11 min	21 min	43 min
Type IV	17 min	32 min	64 min
Type V	23 min	43 min	85 min
Type VI	38 min	71 min	2.4 h

Minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, at Nassau, the median coastal place. Time to burn is the time to reach one minimal erythemal dose and does not depend on age. A rough planning guide, not medical advice.

Places in Bahamas in December

Place	Rating	Sun window	Full dose	Afternoon high	Rainy days
Exuma	Good	6.0 h	10 min	27°C	0/30
Eleuthera	Good	5.6 h	11 min	26°C	2/30
Harbour Island	Good	5.4 h	11 min	25°C	2/30
Nassau	Good	5.1 h	11 min	26°C	5/30
Paradise Island	Good	5.1 h	11 min	26°C	5/30
Freeport	Good	5.2 h	12 min	24°C	3/30

Other months in Bahamas

Best months: October to June. Full Bahamas guide

Other sunny places in December

All best places for vitamin D in December