Weather risk planner
Weather risk for filming in Vienna
Three exterior days in Vienna in May: rain hits at least one with 80 % probability. In March it is 54 %. The tool is set to Vienna — 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 Vienna, month by month
Vienna averages 13 rain days in May and 7 in March. 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 | 10 | 69 % | 86 % | 3 | 4.5 h | 1.2 °C |
| February | 9 | 68 % | 85 % | 3 | 6.4 h | 3.9 °C |
| March | 7 | 54 % | 72 % | 2 | 8.2 h | 6.5 °C |
| April | 9 | 66 % | 83 % | 3 | 9.8 h | 10.8 °C |
| May | 13 | 80 % | 93 % | 4 | 10.4 h | 15.2 °C |
| June | 11 | 75 % | 90 % | 3 | 12.6 h | 20.6 °C |
| July | 10 | 69 % | 86 % | 3 | 12.4 h | 22.5 °C |
| August | 9 | 64 % | 82 % | 3 | 11.4 h | 22.2 °C |
| September | 9 | 66 % | 83 % | 3 | 9.2 h | 17.0 °C |
| October | 10 | 69 % | 86 % | 3 | 7.0 h | 11.8 °C |
| November | 8 | 61 % | 79 % | 3 | 5.1 h | 6.2 °C |
| December | 10 | 69 % | 86 % | 3 | 4.3 h | 2.6 °C |
When to shoot exteriors in Vienna
Weighing daylight against rain days, July comes out best: 15 h 42 min of daylight, 10 rain days and 12.4 hours of sunshine a day. The sunniest month is June (12.6 h a day).
The month matters here: five exterior days run a 72 % risk of losing at least one day in March, but 93 % in May — 2 against 4 cover days for 90 % certainty.
Rain days are not grey days: even in May, the wettest month, the sun shines 10.4 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 Vienna?
May, with 13 days of at least 1 mm rain on average (2015–2024). The driest is March with 7.
How many cover days should I plan for an exterior shoot in Vienna?
For five exterior days and 90 % certainty: 2 in March, 4 in May. 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.