Dubrovnik, Croatia: vitamin D, best months and travel guide
Walled old town above the sea, very busy in summer. Best for: sightseers, couples, history fans.
The best months for vitamin D in Dubrovnik are June to October, when a full dose takes about 7 minutes at midday. Too cool from November to May.
Dubrovnik month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Too cold | 0.5 h | 2.0 | – | 13°C | 12/30 |
| February | Too cold | 3.2 h | 3.1 | 17 min | 13°C | 8/30 |
| March | Too cold | 5.0 h | 4.3 | 12 min | 15°C | 14/30 |
| April | Too cold | 7.3 h | 5.9 | 9 min | 18°C | 11/30 |
| May | Too cold | 8.1 h | 6.7 | 8 min | 22°C | 13/30 |
| June | Excellent | 9.0 h | 7.2 | 7 min | 27°C | 6/30 |
| July | Excellent | 9.4 h | 7.5 | 7 min | 31°C | 3/30 |
| August | Excellent | 8.4 h | 6.8 | 8 min | 30°C | 4/30 |
| September | Good | 6.7 h | 5.5 | 10 min | 26°C | 8/30 |
| October | Good | 4.5 h | 3.9 | 14 min | 23°C | 10/30 |
| November | Too cold | 1.4 h | 2.4 | – | 17°C | 14/30 |
| December | Too cold | 0.0 h | 1.8 | – | 14°C | 10/30 |
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 Dubrovnik
Walled old town above the sea, very busy in summer. Mostly pebble and rock beaches, warm summers and the busiest crowds in July and August. The sea is clear and often calm. Prices peak in high summer; June and September are easy to enjoy.
In Dubrovnik afternoon highs average from 13°C in January to 31°C in July. The wettest month is March (about 14 rainy days out of 30) and the driest is July (3). Midday UV peaks at 7.5 in July.
Questions about Dubrovnik
When is the best time to visit Dubrovnik for vitamin D?
The best months for vitamin D in Dubrovnik are June to October, when a full dose takes about 7 minutes at midday.
What is the weather like in Dubrovnik?
Afternoon highs average from 13°C in January to 31°C in July. The wettest month is March, with about 14 rainy days out of 30.
Which months should I avoid in Dubrovnik?
For a beach stay, avoid the months when it is too cool from November to May.