Sunshine matters. A lot. The idea isn't exactly new, but according to a recent study, when it comes to your mental and emotional health, the amount of time between sunrise and sunset is the weather variable that matters most, and not just for Seasonal Affective Disorder sufferers.
Your day might be filled with irritatingly hot temperatures, thick air pollution and maybe even pockets of rainclouds, but that won't necessarily get you down. If you're able to soak up enough sunlight, your level of emotional distress should remain stable. Reduce sun exposure time, though, and your levels of distress can spike.