Sliema, Malta: vitamin D, best months and travel guide
Busy seafront for shops, restaurants and rocky bathing. Best for: city lovers, language students.
The best months for vitamin D in Sliema are May to November, when a full dose takes about 7 minutes at midday. Too cool from December to April.
Sliema month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Too cold | 3.6 h | 3.4 | 16 min | 17°C | 5/30 |
| February | Too cold | 5.1 h | 4.4 | 12 min | 17°C | 7/30 |
| March | Too cold | 7.2 h | 6.2 | 9 min | 19°C | 1/30 |
| April | Too cold | 8.1 h | 7.2 | 7 min | 20°C | 4/30 |
| May | Excellent | 8.7 h | 7.7 | 7 min | 23°C | 4/30 |
| June | Excellent | 9.6 h | 8.2 | 7 min | 29°C | 2/30 |
| July | Excellent | 9.7 h | 8.5 | 6 min | 34°C | 0/30 |
| August | Excellent | 9.0 h | 7.9 | 7 min | 32°C | 1/30 |
| September | Excellent | 7.4 h | 6.7 | 8 min | 29°C | 4/30 |
| October | Good | 6.4 h | 5.4 | 10 min | 27°C | 1/30 |
| November | Good | 4.3 h | 3.8 | 14 min | 22°C | 5/30 |
| December | Too cold | 2.5 h | 3.0 | 18 min | 18°C | 7/30 |
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 Sliema
Busy seafront for shops, restaurants and rocky bathing. Hot dry summers and mild winters. Beaches are small and rocky, with sunbeds for rent. It is easy to get around by bus and ferry, and English is widely spoken.
In Sliema afternoon highs average from 17°C in February to 34°C in July. The wettest month is February (about 7 rainy days out of 30) and the driest is July (0). Midday UV peaks at 8.5 in July, which is very strong, so protect your skin.
Shopping area just north of Valletta. (Wikivoyage, CC BY-SA 4.0)
Questions about Sliema
When is the best time to visit Sliema for vitamin D?
The best months for vitamin D in Sliema are May to November, when a full dose takes about 7 minutes at midday.
What is the weather like in Sliema?
Afternoon highs average from 17°C in February to 34°C in July. The wettest month is February, with about 7 rainy days out of 30.
Which months should I avoid in Sliema?
For a beach stay, avoid the months when it is too cool from December to April.