Vitamin D in Jamaica in April: sun, UV and what to expect
Bad weather Bad weather: it rains on about 22 days in April (rainy or monsoon season), so sun is hard to count on and a beach stay is not recommended.
8.4 hsun window (UV 2.5+)
8.4peak UV Index
6 minto a full dose
29°Cafternoon high
22/30rainy days
25/30sunny days
The country rating is for a typical beach, but some places in Jamaica still work in April: Kingston (excellent), Treasure Beach (excellent).
How long in the sun in April?
- If you travel anyway, plan your sun session around midday (roughly 11:00 to 15:00), when the UV Index peaks at about 8.4. With about a quarter of your skin bare, a full dose takes around 6 minutes for skin type III at age 30, and about 12 minutes at age 65.
- Stop well before your skin turns pink. At this UV level skin type III can start to burn after about 24 minutes of midday sun, so cover up, find shade and use SPF 30+ on skin that stays out.
- On clear days the UV Index reaches about 9.1, which is very strong. Keep sessions short and protect the rest of the day.
- 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 | 4 min | 8 min | 16 min |
| Type II | 5 min | 10 min | 20 min |
| Type III | 6 min | 12 min | 24 min |
| Type IV | 10 min | 18 min | 36 min |
| Type V | 13 min | 24 min | 48 min |
| Type VI | 21 min | 40 min | 79 min |
Minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, at Port Antonio, 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 Jamaica in April
| Place | Rating | Sun window | Full dose | Afternoon high | Rainy days |
|---|---|---|---|---|---|
| Kingston | Excellent | 8.5 h | 6 min | 31°C | 10/30 |
| Treasure Beach | Excellent | 8.7 h | 6 min | 33°C | 17/30 |
| Montego Bay | Bad weather | 8.6 h | 6 min | 30°C | 19/30 |
| Port Antonio | Bad weather | 8.4 h | 6 min | 29°C | 22/30 |
| Negril | Bad weather | 8.5 h | 6 min | 31°C | 22/30 |
| Ocho Rios | Bad weather | 8.3 h | 6 min | 30°C | 28/30 |
Other months in Jamaica
- Jan Good
- Feb Excellent
- Mar Excellent
- Apr Bad weather
- May Bad weather
- Jun Bad weather
- Jul Too hot
- Aug Bad weather
- Sep Bad weather
- Oct Bad weather
- Nov Bad weather
- Dec Good
Best months: December to March. Full Jamaica guide