Oslo's summers are warm compared to the rest of Scandinavia and even its winters don't have that hard edge that many expect. Days of 30°C (86°F) aren't frequent but neither are they uncommon in summer, although visitors are more likely to experience mild, sunny days of around 22°C (72°F) in July. The sun is never far from the horizon in mid-summer in Oslo while in the northern part of the country, it never sets at all. The one drawback about high summer is that Oslo is positively packed with tourists and accommodation can become scarce. Paradoxically, the competition often drives prices down. May is a good time to visit as the weather is getting warmer and the tourist season hasn't quite begun. If it's cold and it's snowsports you're after, then Oslo in winter is a majestic sight, covered in a blanket of white. Temperatures won't really climb over 0°C (32°F) in mid-winter and there's little sunlight. During the day, the city seems covered by eternal dusk.. Oslo's rainfall is spread throughout the year but March, April and May have the lowest averages.