Byron Bay, Australia: vitamin D, best months and travel guide
Laid-back surf town with a lighthouse and markets. Best for: surfers, couples, wellness seekers.
The best months for vitamin D in Byron Bay are April, August to October, December, when a full dose takes about 6 minutes at midday. Too cool from May to July and rainy or stormy from January to March and in November.
Byron Bay month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Bad weather | 7.3 h | 7.5 | 7 min | 27°C | 22/30 |
| February | Bad weather | 7.8 h | 7.9 | 7 min | 28°C | 18/30 |
| March | Bad weather | 6.2 h | 6.4 | 8 min | 26°C | 20/30 |
| April | Good | 6.2 h | 5.8 | 9 min | 24°C | 17/30 |
| May | Too cold | 4.2 h | 4.3 | 12 min | 21°C | 20/30 |
| June | Too cold | 4.5 h | 4.1 | 13 min | 20°C | 4/30 |
| July | Too cold | 4.4 h | 4.1 | 13 min | 19°C | 9/30 |
| August | Good | 5.4 h | 4.9 | 11 min | 22°C | 13/30 |
| September | Good | 6.8 h | 6.4 | 8 min | 23°C | 11/30 |
| October | Excellent | 7.8 h | 7.5 | 7 min | 23°C | 13/30 |
| November | Bad weather | 7.2 h | 7.4 | 7 min | 26°C | 20/30 |
| December | Excellent | 8.6 h | 8.6 | 6 min | 27°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 Byron Bay
Laid-back surf town with a lighthouse and markets. Seasons are the reverse of Europe, with summer from December to February. The tropical north has a wet season (November to April) with stingers in the sea, and a dry, comfortable winter. UV is very strong, so protect your skin.
In Byron Bay afternoon highs average from 19°C in July to 28°C in February. The wettest month is January (about 22 rainy days out of 30) and the driest is June (4). Midday UV peaks at 8.6 in December, which is very strong, so protect your skin.
More about Australia · Australia in December · Best places in December
Questions about Byron Bay
When is the best time to visit Byron Bay for vitamin D?
The best months for vitamin D in Byron Bay are April, August to October, December, when a full dose takes about 6 minutes at midday.
What is the weather like in Byron Bay?
Afternoon highs average from 19°C in July to 28°C in February. The wettest month is January, with about 22 rainy days out of 30.
Which months should I avoid in Byron Bay?
For a beach stay, avoid the months when it is too cool from May to July and rainy or stormy from January to March and in November.