The quirk to exploit first

Oslo is a business city. Corporate demand peaks midweek, so weekends are cheaper — the reverse of most leisure destinations.

July is also cheap, because Norwegian business stops for the common holiday and the city empties.

Expensive: the Holmenkollen Ski Festival week in March, the 17 May weekend, and the days around the Nobel ceremony on 10 December.

The districts

Sentrum — everything walkable, most hotels, most competition on price. Quiet in the evening, and the area right around Oslo S has a visible drug scene that is unpleasant rather than dangerous.

Bjørvika — newest hotels, the fjord, the Opera House roof as your local park. Corporate and expensive.

Grünerløkka — the best neighbourhood to actually be in. Mostly apartments.

Frogner and Majorstuen — quiet, handsome, near Vigeland park and the metro to the forest.

Tøyen and Grønland — cheapest, most mixed, best cheap food in the city.

The full comparison is in where to stay in Oslo.

Four things to check

Is breakfast included. Norwegian hotel breakfast is substantial and, given restaurant prices here, worth more than it looks.

Is there a kitchen. With supermarket prices against restaurant prices, an aparthotel changes your daily spend meaningfully.

Blackout blinds. In June the sun sets around 10.45pm and never gets fully dark.

Air conditioning. Most Oslo buildings do not have it, and July heatwaves are becoming less unusual.