Zakynthos, Greece: vitamin D, best months and travel guide
Turtle-nesting beaches and the Navagio shipwreck cove. Best for: families, boat-trip fans, nature lovers.
The best months for vitamin D in Zakynthos are April to June, September, October, when a full dose takes about 7 minutes at midday. Too hot from July to August and too cool from November to March.
Zakynthos month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Too cold | 2.7 h | 2.9 | 18 min | 15°C | 8/30 |
| February | Too cold | 4.4 h | 4.0 | 13 min | 16°C | 11/30 |
| March | Too cold | 6.9 h | 5.8 | 9 min | 18°C | 7/30 |
| April | Excellent | 8.1 h | 7.0 | 8 min | 23°C | 3/30 |
| May | Excellent | 8.4 h | 7.4 | 7 min | 25°C | 2/30 |
| June | Excellent | 9.6 h | 8.2 | 7 min | 34°C | 0/30 |
| July | Too hot | 9.6 h | 8.1 | 7 min | 36°C | 1/30 |
| August | Too hot | 8.9 h | 7.7 | 7 min | 35°C | 3/30 |
| September | Good | 7.5 h | 6.4 | 8 min | 28°C | 4/30 |
| October | Good | 6.0 h | 4.9 | 11 min | 24°C | 1/30 |
| November | Too cold | 3.6 h | 3.3 | 16 min | 19°C | 10/30 |
| December | Too cold | 1.5 h | 2.6 | 21 min | 16°C | 12/30 |
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 Zakynthos
Turtle-nesting beaches and the Navagio shipwreck cove. Hot, dry summers and a strong northern wind (the meltemi) in July and August. Many island hotels close and ferries run less often from November to March. May, June and September give good sun with fewer people.
In Zakynthos afternoon highs average from 15°C in January to 36°C in July. The wettest month is December (about 12 rainy days out of 30) and the driest is June (0). Midday UV peaks at 8.2 in June, which is very strong, so protect your skin.
Questions about Zakynthos
When is the best time to visit Zakynthos for vitamin D?
The best months for vitamin D in Zakynthos are April to June, September, October, when a full dose takes about 7 minutes at midday.
What is the weather like in Zakynthos?
Afternoon highs average from 15°C in January to 36°C in July. The wettest month is December, with about 12 rainy days out of 30.
Which months should I avoid in Zakynthos?
For a beach stay, avoid the months when it is too hot from July to August and too cool from November to March.