Hi,
Its more critical during primary fermentation as the must temperature will increase above ambient room temperature, due to the heat produced by the yeast as a by product.
I don't have much space so I only use a plastic storage container that is big enough to hold my 35 ltr fermenter. I fill it with a little water and keep 2 - 5 L bottles of water in the freezer and place them in the water to keep the must temperature around 20c, once thawed just return them to the freezer and take out another one.
As an example, I am making a mead with Lalvin 71B, ambient temperature was 19c, however the fermentation was so vigorous that the must temperature rose to 24.5c and the yeast became very smelly.
Since lowering the temp to between 18 and 20c the smell coming out of the airlock is very mild and not so pungent.
Secondary fermentation does not suffer from excess heat caused by the yeast and it is generally easier to keep close to the ambient room temperature 65 - 72 is good. Same for bulk aging ambient in your case is good for storage and aging.