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

Too cold Too cold here in December: afternoon highs average only 18.2°C, which is too chilly for sunbathing in light clothing. Try another month or a warmer destination.

3.9 hsun window (UV 2.5+)

3.7peak UV Index

14 minto a full dose

18°Cafternoon high

7/30rainy days

23/30sunny days

Open Mississippi for December on the map Find stays in Mississippi

How long in the sun in December?

If you travel anyway, plan your sun session around midday (roughly 11:00 to 15:00), when the UV Index peaks at about 3.7. With about a quarter of your skin bare, a full dose takes around 14 minutes for skin type III at age 30, and about 27 minutes at age 65.
Stop well before your skin turns pink. At this UV level skin type III can start to burn after about 54 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	10 min	18 min	36 min
Type II	12 min	23 min	45 min
Type III	14 min	27 min	54 min
Type IV	22 min	41 min	81 min
Type V	29 min	54 min	1.8 h
Type VI	48 min	90 min	3.0 h

Minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, at Bay St. Louis, 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 Mississippi in December

Place	Rating	Sun window	Full dose	Afternoon high	Rainy days
Ocean Springs	Too cold	3.9 h	14 min	19°C	6/30
Gulfport	Too cold	3.9 h	14 min	18°C	7/30
Bay St. Louis	Too cold	3.9 h	14 min	18°C	7/30
Pass Christian	Too cold	3.9 h	14 min	18°C	7/30
Biloxi	Too cold	3.8 h	14 min	19°C	5/30

Other months in Mississippi

Best months: April to June, October, November. Full Mississippi guide

Other sunny places in December

All best places for vitamin D in December