Tampa averages 245 sunny days annually, ranking it among the sunniest cities in the United States. The National Oceanic and Atmospheric Administration (NOAA) defines a "sunny day" as one where cloud cover averages less than 30% during daylight hours.
Tampa also records ~105 partly cloudy days and ~15 cloudy days yearly. Total annual rainfall averages 46–50 inches, concentrated in June–September thunderstorms. The "sunny day" count reflects morning/overall sky cover, not absence of rain.
Tampa's 245 sunny days exceeds the U.S. average (~205) and rivals Phoenix (299), Las Vegas (294), and Miami (248). It's a key factor in the region's appeal for retirees, tourism, and solar energy.