Grenville, Grenada: vitamin D, best months and travel guide
Market town on the east coast, a base for the lakes and rainforest inland. Best for: culture travellers.
The best months for vitamin D in Grenville are February to May, September, when a full dose takes about 6 minutes at midday. Rainy or stormy from June to August and from October to January.
Grenville month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Bad weather | 7.7 h | 7.5 | 7 min | 28°C | 26/30 |
| February | Excellent | 8.1 h | 8.4 | 6 min | 29°C | 13/30 |
| March | Excellent | 8.4 h | 9.1 | 6 min | 30°C | 16/30 |
| April | Excellent | 8.7 h | 9.1 | 6 min | 30°C | 15/30 |
| May | Excellent | 8.7 h | 8.9 | 6 min | 31°C | 15/30 |
| June | Bad weather | 8.4 h | 8.2 | 7 min | 30°C | 25/30 |
| July | Bad weather | 8.3 h | 8.3 | 6 min | 29°C | 28/30 |
| August | Bad weather | 8.5 h | 8.9 | 6 min | 30°C | 21/30 |
| September | Excellent | 8.4 h | 8.7 | 6 min | 31°C | 17/30 |
| October | Bad weather | 8.1 h | 8.3 | 6 min | 31°C | 21/30 |
| November | Bad weather | 7.7 h | 7.5 | 7 min | 30°C | 23/30 |
| December | Bad weather | 7.4 h | 6.9 | 8 min | 29°C | 22/30 |
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.
What to expect in Grenville
Market town on the east coast, a base for the lakes and rainforest inland. A dry season from January to May and a wetter season from June to December, though hurricane risk is low. Friendly, small-scale tourism.
In Grenville afternoon highs average from 28°C in January to 31°C in May. The wettest month is July (about 28 rainy days out of 30) and the driest is February (13). Midday UV peaks at 9.1 in March, which is very strong, so protect your skin.
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Questions about Grenville
When is the best time to visit Grenville for vitamin D?
The best months for vitamin D in Grenville are February to May, September, when a full dose takes about 6 minutes at midday.
What is the weather like in Grenville?
Afternoon highs average from 28°C in January to 31°C in May. The wettest month is July, with about 28 rainy days out of 30.
Which months should I avoid in Grenville?
For a beach stay, avoid the months when it is rainy or stormy from June to August and from October to January.