Suicide is actually correlated with lots of sunshine and high temperatures even in colder countries like the Nordics.
https://en.wikipedia.org/wiki/Seasonal_effects_on_suicide_ra...
People tend to say that they get depressed by the winter, but I believe that it is similar to how people tended to say that exercise was bad for you not too long ago. Cold helps against depression in many cases, for example cold showers. If you asked people if they would be happy trading their warm showers for cold showers they would say that it would be horrible even though it likely would improve their overall happiness.