Like the rest of Kamchatka Krai, Bering Island has a subarctic climate (Dfc), though the ocean makes temperatures much less extreme than interior Siberia, with winters being about four degrees milder than in Petropavlovsk-Kamchatsky. The transition to the subpolar oceanic climate of southwest Alaska to the east is very apparent, especially in the extremely low sunshine hours, which average only around 2.8 per day due to the consistent fog from the Aleutian Low and the Oyashio Current on its western flank. Extreme temperatures have ranged from −23.5 °C (−10.3 °F) to 21.5 °C (70.7 °F), with the latter occurring as recently as June 30, 1938.