St. George's best: Excellent
Pastel harbour town on a horseshoe bay.
Vitamin D in Grenada: best months for sun and a travel guide
The best months for vitamin D in Grenada are February to May, September. In March, a full dose of about 1,000 IU takes around 6 minutes at midday for skin type III at age 30, with 8.5 usable sun hours a day. For a beach stay it is rainy or stormy from June to August and from October to January.
Grenada month by month
Grenada is rated at its median coastal place, for skin type III at age 30. Click a month for the details.
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Full dose, age 65 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|---|
| January | Bad weather | 7.6 h | 7.4 | 7 min | 14 min | 28°C | 20/30 |
| February | Excellent | 8.1 h | 8.4 | 6 min | 12 min | 28°C | 13/30 |
| March | Excellent | 8.5 h | 9.0 | 6 min | 11 min | 29°C | 13/30 |
| April | Excellent | 8.7 h | 9.1 | 6 min | 11 min | 30°C | 14/30 |
| May | Excellent | 8.7 h | 8.9 | 6 min | 11 min | 31°C | 15/30 |
| June | Bad weather | 8.5 h | 8.4 | 6 min | 12 min | 30°C | 23/30 |
| July | Bad weather | 8.3 h | 8.5 | 6 min | 12 min | 29°C | 27/30 |
| August | Bad weather | 8.4 h | 8.8 | 6 min | 11 min | 30°C | 21/30 |
| September | Excellent | 8.3 h | 8.7 | 6 min | 11 min | 29°C | 16/30 |
| October | Bad weather | 7.9 h | 8.1 | 7 min | 12 min | 31°C | 18/30 |
| November | Bad weather | 7.7 h | 7.5 | 7 min | 13 min | 30°C | 23/30 |
| December | Bad weather | 7.4 h | 7.0 | 8 min | 14 min | 28°C | 19/30 |
Sun window is the number of hours a day with UV Index 2.5 or higher. Full dose is the minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, for skin type III. Rainy days are days with at least 1 mm out of 30.
Travel guide: why go to Grenada
Why go
Grenada, the Spice Isle, offers calm beaches, nutmeg and cocoa farms, waterfalls and an underwater sculpture park.
Best for
Couples, divers, foodies and chocolate lovers.
What to expect
A dry season from January to May and a wetter season from June to December, though hurricane risk is low. Friendly, small-scale tourism.
Places in Grenada
Each place has its own climate, so its best months can differ from the country as a whole.
Grand Anse Beach best: Excellent
Two-mile white beach with resorts.
Carriacou best: Excellent
Quiet sister island with empty beaches and a small boat scene.
Sauteurs best: Excellent
North-coast town at Leapers' Hill with history.
Grenville best: Excellent
Market town on the east coast, a base for the lakes and rainforest inland.
Questions about vitamin D in Grenada
When is the best time to visit Grenada for vitamin D?
The best months for vitamin D in Grenada are February to May, September. In March, a full dose of about 1,000 IU takes around 6 minutes at midday for skin type III at age 30, with 8.5 usable sun hours a day.
Can you get vitamin D from the sun in Grenada in December?
Yes, but slowly. In December a full dose takes about 8 minutes at midday for skin type III at age 30, with 7.4 usable hours a day.
How long do I need in the sun in Grenada?
In March, the best month, about 6 minutes at midday with a quarter of the body bare, for skin type III at age 30; about 11 minutes at age 65. Darker skin needs longer and fair skin burns sooner, so keep sessions short. This is an estimate for planning, not medical advice.
Which months should I avoid in Grenada?
For a beach stay, avoid the months when it is rainy or stormy from June to August and from October to January.
What is the best place in Grenada for vitamin D?
In March the strongest sun of the places we rate is around Carriacou. Each place has its own rating, so open the place list to compare them.
Plan by month
- Jan Bad weather
- Feb Excellent
- Mar Excellent
- Apr Excellent
- May Excellent
- Jun Bad weather
- Jul Bad weather
- Aug Bad weather
- Sep Excellent
- Oct Bad weather
- Nov Bad weather
- Dec Bad weather