The following table is a good guide:
Recommended Sun Exposure for Vitamin D based on Location
Exposed area: arms or equivalent amount of skin surface
Dec - Jan
(at 10am OR 2pm ^ST)
July - Aug
|Northern||Townsville||5 - 7 minutes||7 minutes|
|Cairns||6 - 7 minutes||7 minutes|
|Central||Brisbane||6 - 7 minutes||10 minutes|
|Perth||5 - 6 minutes||15 minutes|
|Southern||Sydney||6 - 8 minutes||15 minutes|
|Adelaide||5 - 7 minutes||20 minutes|
|Melbourne||6 - 8 minutes||25 minutes|
|Hobart||7 - 10 minutes||30 minutes|
Adapted from Vitamin D and health in adults in Australia and New Zealand: Position Statement 2012
Times are a general guide only, based on averages which can vary depending on weather conditions and individual responses.
^at 11am or at 3pm during Daylight Saving Time
To make things easier, the Healthy Bones Australia Calculator works out if you’re getting enough daily sunshine exposure to produce enough vitamin D:
- It takes into account factors such as your age, location in Australia, what time you were in the sun and for how long.
- It tracks your history of sunshine exposure as sunshine has a cumulative effect over time.
If you’ve had enough daily sunshine, you get a big tick!
Disclaimer: There is a school of thought that people with darker skin require greater sun exposure for vitamin D absorption. eg 15 - 60 minutes during summer and 20 minutes to 3 hours during winter (depending on the latitude). At present the Healthy Bones Australia Calculator does not take this into account