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Slide and Tap Other Months
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What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
Temperature
11°C53°F -
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
High Temperature
16°C61°F -
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
Low Temperature
7°C45°F -
What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
Sunshine Hours
7 hours -
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
Rainfall Days
14 days -
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
Rainfall
50 mm
Sun
Mon
Tue
Wed
Thu
1
Avg
7º
45º
Fri
2
Avg
7º
45º
Sat
3
Avg
8º
46º
4
Avg
7º
45º
5
Avg
8º
46º
6
Avg
9º
48º
7
Avg
10º
50º
8
Avg
10º
50º
9
Avg
10º
50º
10
Avg
10º
50º
11
Avg
9º
48º
12
Avg
9º
48º
13
Avg
8º
46º
14
Avg
9º
48º
15
Avg
9º
48º
16
Avg
9º
48º
17
Avg
10º
50º
18
Avg
10º
50º
19
Avg
11º
52º
20
Avg
11º
52º
21
Avg
11º
52º
22
Avg
11º
52º
23
Avg
12º
54º
24
Avg
12º
54º
25
Avg
12º
54º
26
Avg
11º
52º
27
Avg
12º
54º
28
Avg
11º
52º
29
Avg
11º
52º
30
Avg
12º
54º
31
Avg
12º
54º
Forecast
Avg
Historical Daily Average
May Weather Averages
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Oslo Events May
Public Holiday
1
May
2026
1
May
2026
Labour Day (Arbeidernes dag) 🗓
A national public holiday celebrated with parades, political speeches, and concerts. Demonstrations begin at Youngstorget before moving toward the Royal Palace. Trade unions and cultural groups participate, and outdoor cafés fill as Oslo residents mark the symbolic start of summer.
Beer Festival
8
May
2026
9
May
2026
Oslo Craft Beer Festival – Vulkan Arena 🍻
A popular gathering for brewers and enthusiasts showcasing Nordic and international craft beers. Attendees sample limited editions, attend brewing workshops, and meet local producers. The event emphasises Oslo’s growing artisan beverage scene.
National
17
May
2026
17
May
2026
Norway Constitution Day (Grunnlovsdagen) 🏞
Norway’s most celebrated national holiday marks the signing of the 1814 constitution. Oslo hosts a children’s parade past the Royal Palace, traditional dress (bunad) displays, marching bands, and family picnics. It’s the year’s most colourful and patriotic day.
Medieval Festival
22
May
2026
24
May
2026
Oslo Medieval Festival – Akershus Fortress 🏰
A historical festival inside Akershus Fortress featuring reenactments, traditional crafts, tournaments, and medieval food markets. Families and history enthusiasts explore living history encampments while musicians perform period music on the fortress grounds.
Music Festival
29
May
2026
31
May
2026
Norwegian Wood Music Festival – Frognerbadet 🎙
A continuation of Oslo’s iconic outdoor music festival blending rock, indie, and folk genres. Artists perform at Frogner Park’s open-air stage surrounded by nature. Sustainability and community involvement remain key features, with food stalls and family areas enhancing the experience.
