Weather risk planner
Weather risk for filming in Oslo
Three exterior days in Oslo in July: rain hits at least one with 80 % probability. In April it is 61 %. The tool is set to Oslo — enter your own days.
- At least one day hit
- 80 %
- Expected lost days
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- Cover days to hold
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- Risk per day
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- Rain days in month
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- Sunshine per day
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- Daylight
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- Mean temperature
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Your shoot, played out 20 times
Same number of days in every month — click a month
- risk of at least one lost day
- sunshine hours per day
| Lost days | Probability | This many or fewer |
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Rain risk in Oslo, month by month
Oslo averages 13 rain days in July and 8 in April. A rain day here is any day with at least 1 mm of precipitation, averaged over 2015–2024. The risk columns assume every exterior day can be lost; the cover-day column is what you need to be 90 % sure a five-day exterior block finishes.
| Month | Rain days | 3 days: ≥ 1 hit | 5 days: ≥ 1 hit | Cover days (5 d, 90 %) | Sun/day | Mean temp |
|---|---|---|---|---|---|---|
| January | 12 | 77 % | 91 % | 3 | 2.7 h | -3.1 °C |
| February | 11 | 77 % | 92 % | 3 | 4.7 h | -1.7 °C |
| March | 9 | 64 % | 82 % | 3 | 7.1 h | 0.9 °C |
| April | 8 | 61 % | 79 % | 3 | 10.3 h | 5.6 °C |
| May | 12 | 77 % | 91 % | 3 | 11.7 h | 11.4 °C |
| June | 12 | 78 % | 92 % | 3 | 13.1 h | 16.2 °C |
| July | 13 | 80 % | 93 % | 4 | 12.5 h | 17.2 °C |
| August | 13 | 80 % | 93 % | 4 | 10.5 h | 16.0 °C |
| September | 11 | 75 % | 90 % | 3 | 7.5 h | 12.7 °C |
| October | 12 | 77 % | 91 % | 3 | 4.8 h | 7.0 °C |
| November | 12 | 78 % | 92 % | 3 | 2.6 h | 2.2 °C |
| December | 13 | 80 % | 93 % | 4 | 1.9 h | -1.4 °C |
When to shoot exteriors in Oslo
Weighing daylight against rain days, June comes out best: 18 h 46 min of daylight, 12 rain days and 13.1 hours of sunshine a day. The sunniest month is June (13.1 h a day).
The month matters here: five exterior days run a 79 % risk of losing at least one day in April, but 93 % in July — 3 against 4 cover days for 90 % certainty.
Rain days are not grey days: even in July, the wettest month, the sun shines 12.5 hours a day on average. Many of those rain days are wet for an hour, not all day — if your scenes can wait out a shower, lower the share slider in the tool.
Frequently asked
What is the rainiest month in Oslo?
July, with 13 days of at least 1 mm rain on average (2015–2024). The driest is April with 8.
How many cover days should I plan for an exterior shoot in Oslo?
For five exterior days and 90 % certainty: 3 in April, 4 in July. The tool above calculates it for your exact number of days.
Is this a weather forecast?
No — it is climate: what the last ten years looked like on average. From about ten days before the shoot, the national weather service forecast is the better source.