Oslo
Oslo is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of 724,290 in 2025, while the city's greater urban area had a population of 1,110,887 in 2025, and the metropolitan area had an estimated population of 1,546,706 in 2021.
Typical weather
1981–presentCity Rhythm
measuredOpening hours, by kind of place
median across mapped venuesVital absurdities
measured · the Anti-AwardsSame time system
by rhythmWhat to do each season
2winter
cold, snowy, dry; mean −6.4 to 9.6 °C across the range; January mean min −9.2 °C; reliable snow cover in the surrounding hills (Nordmarka); driest season
- cross-country skiing in Nordmarka (the forest north of the city) opens up — a Holmenkollen-frame winter civic ritual
- the museums carry the indoor visitor economy (Munch, the Viking Ship Museum, the Fram, the National Gallery)
- the Oslo Philharmonic, the Norwegian National Opera and Ballet, the National Theatre
- the Christmas market at Spikersuppa and the deeply-dark December of latitude 60°N
summer
warm for latitude; mean 10.1-15.8 °C, July mean max 19.9 °C; >18 hr daylight midsummer; wettest season (Jul-Aug 3.1-3.6 mm/day)
- the Bygdøy museums peninsula activates as both a museum cluster and a beach destination (Huk, Paradisbukta)
- the fjord islands (Hovedøya, Gressholmen) become reachable by ferry for swimming and picnics
- the Aker Brygge and Tjuvholmen waterfront fills; the opera roof becomes a usable public space
- Øya Festival (August), Oslo Jazz Festival, outdoor cinema
What it is known for
Important moments in a year
17 Mai
- Constitution Day
- children's parade (Barnetog) up Karl Johans gate
- national-costume crowds
Nobel Peace Prize
- Nobel Peace Prize ceremony at the City Hall
- international spotlight
Oyafestivalen
- four-day music festival in Middelalderparken
Oslo Pride
- Pride parade through the city centre
Holmenkollen Ski Festival
- international ski jumping / Nordic-skiing World Cup event
On the record
source-trackedOslo has Norway's most extensive public transport system, managed by Ruter. This includes the five-line Oslo Metro, the world's most extensive metro per resident; the six-line Oslo Tramway; and the eight-line Oslo Commuter Rail.
Oslo has some of the warmest summers of Norway and fairly cold winters.
The driest seasons are winter and spring, and the wettest are summer and autumn.
Several world-famous writers have either lived or been born in Oslo. Examples are Knut Hamsun and Henrik Ibsen.
Oslo was founded as a city at the end of the Viking Age in 1040 under the name Ánslo, and established as a kaupstad or trading place in 1048 by Harald Hardrada.
After being destroyed by a fire in 1624, during the reign of King Christian IV, a new city was built closer to Akershus Fortress and named Christiania.
In 2018 Oslo is named one of Lonely Planet's Top Ten Cities, citing the Norwegian capital's "innovative architecture and unmissable museums alongside cool bars, bistros and cafés".
Olaf Ryes plass is a fine little park in the middle Grünerløkka. The adjacent streets, notably Thorvald Meyers gate, are lined with bars, cafes, restaurants and clubs, making it the most popular hang-out area in Oslo.
The Sentrum area is home to key national institutions such as the Parliament, the Royal Palace, the City Hall, the Supreme court and most government ministries.
The method behind this atlas — 196 pp. Not published yet.