Yes, sunscreen is still important during monsoon because UV rays remain present even on cloudy or rainy days. Many people with oily skin prefer lightweight or gel based sunscreens during this season since humidity levels are high.
Sunscreen for oily skin is generally reapplied every two to three hours during outdoor exposure. If you are indoors most of the day, reapplication depends on direct sunlight exposure and sweating.
Not necessarily. Heavy or cream based sunscreens may feel greasy, but oil free and matte formulas are designed to sit lightly on oily skin.