https://en.wikipedia.org/wiki/Climate_of_Dubai
Looks unhealthy unless one has air conditioning a lot of the year.
The heat can be uncomfortable, but doesn't bring the vitamin D deprivation and seasonal depression associated with the UK climate.
Vitamin D tablets are not expensive.
Starting every day with a swim in the sunshine does go a long way.
On the bright side, the weather in Dubai is much better than the UK's.