| Store Sommarøya Sommarøya | |
| Location: | Troms, Norway |
| Coordinates: | 69.6272°N 18.03°W |
| Area Km2: | 0.9 |
| Length Km: | 2 |
| Width M: | 750 |
| Elevation M: | 55 |
| Country: | Norway |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Troms |
| Country Admin Divisions Title 1: | Municipality |
| Country Admin Divisions 1: | Tromsø Municipality |
Store Sommarøya or Sommarøya is an island in Tromsø Municipality in Troms county, Norway. The 0.9km2 island is located about west of the city of Tromsø and is a popular tourist destination due to its white sand beaches and scenery. The island is connected to the large neighboring island of Kvaløya by the Sommarøy Bridge and it is connected to the small island of Hillesøya by the Hillesøy Bridge. The fishing village of Sommarøy covers Store Sommarøya and part of Hillesøya.[1]
Despite its extreme latitude, more than north of the Arctic Circle, Sommarøya experiences an ocean-moderated subarctic climate (Cfc) with no month averaging below and a mean annual temperature of almost .