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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
5°C41°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
9°C48°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
1°C34°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
6 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
15 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
40 mm
Sun
Mon
Tue
1
Avg
2º
36º
Wed
2
Avg
3º
37º
Thu
3
Avg
3º
37º
Fri
4
Avg
3º
37º
Sat
5
Avg
3º
37º
6
Avg
2º
36º
7
Avg
3º
37º
8
Avg
3º
37º
9
Avg
3º
37º
10
Avg
4º
39º
11
Avg
4º
39º
12
Avg
3º
37º
13
Avg
4º
39º
14
Avg
4º
39º
15
Avg
4º
39º
16
Avg
5º
41º
17
Avg
5º
41º
18
Avg
5º
41º
19
Avg
5º
41º
20
Avg
5º
41º
21
Avg
6º
43º
22
Avg
6º
43º
23
Avg
8º
46º
24
Avg
7º
45º
25
Avg
7º
45º
26
Avg
7º
45º
27
Avg
7º
45º
28
Avg
7º
45º
29
Avg
7º
45º
30
Avg
8º
46º
Forecast
Avg
Historical Daily Average
April Weather Averages
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Oslo Events April
Religion
1
Apr
2026
5
Apr
2026
Easter Week (Påske) 🛐
Easter is one of Norway’s longest public holidays. Oslo quiets as locals travel to mountain cabins, but churches like Oslo Cathedral host candlelit services. Museums and restaurants offer family events and special menus, while ski resorts nearby remain busy during the spring snow.
Food Festival
18
Apr
2026
19
Apr
2026
Oslo Vegan Food Festival – Youngstorget 🍲
A two-day outdoor food fair featuring vegan dishes, cooking workshops, and local producers. The festival promotes sustainable dining and plant-based living, attracting visitors to central Oslo for tastings, talks, and live acoustic performances.
Opera
26
Apr
2026
27
Apr
2026
Spring Opera Gala – Oslo Opera House 🎼
The Norwegian National Opera and Ballet opens its spring season with gala performances of popular arias and orchestral works. Featuring leading Norwegian soloists and international guests, it celebrates the arrival of spring with elegant waterfront performances.
