Oulu is the largest city in Northern Finland and the fifth largest in the country. It is known for its vibrant student life, modern architecture and as the birthplace of the mobile phone. The city is located on the Gulf of Bothnia, at the mouth of the Oulujoki River. Oulu is also home to the Oulu Cathedral, the Oulu Fortress and the Rotuaari pedestrian zone.
Average temperatures during the day in Oulu.