Vitamin D in Alabama in September: sun, UV and what to expect

Bad weather Bad weather: September is a peak month for tropical storms here, so a beach stay is not recommended. If you still go, check forecasts and travel insurance.

6.5 hsun window (UV 2.5+)

6.4peak UV Index

8 minto a full dose

28°Cafternoon high

7/30rainy days

24/30sunny days

Open Alabama for September on the map Find stays in Alabama

How long in the sun in September?

If you travel anyway, plan your sun session around midday (roughly 11:00 to 15:00), when the UV Index peaks at about 6.4. With about a quarter of your skin bare, a full dose takes around 8 minutes for skin type III at age 30, and about 16 minutes at age 65.
Stop well before your skin turns pink. At this UV level skin type III can start to burn after about 31 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	6 min	10 min	21 min
Type II	7 min	13 min	26 min
Type III	8 min	16 min	31 min
Type IV	12 min	23 min	47 min
Type V	17 min	31 min	62 min
Type VI	28 min	52 min	1.7 h

Minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, at Dauphin Island, 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 Alabama in September

Place	Rating	Sun window	Full dose	Afternoon high	Rainy days
Gulf Shores	Bad weather	7.4 h	8 min	30°C	8/30
Mobile	Bad weather	6.6 h	8 min	31°C	7/30
Dauphin Island	Bad weather	6.5 h	8 min	28°C	7/30
Orange Beach	Bad weather	6.7 h	8 min	29°C	10/30
Fort Morgan	Bad weather	6.6 h	8 min	28°C	10/30

Other months in Alabama

Best months: April to July, October, November. Full Alabama guide

Other sunny places in September

All best places for vitamin D in September