Weather risk planner

Weather risk for filming in Milan

Three exterior days in Milan in May: rain hits at least one with 89 % probability. In January it is 48 %. The tool is set to Milan — enter your own days.

Three exterior days in Milan: in May rain hits at least one of them with 89 % probability, in January with 48 %. Choose your month and number of days.
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100 %
100 % = any day with ≥ 1 mm rain is lost. Lower it if scenes can play in light rain or under cover.
Cover days for
At least one day hit
89 %
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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Rain risk in Milan, month by month

Milan averages 16 rain days in May and 6 in January. 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.

Milan: rain days and risk for 3 or 5 exterior days (Open-Meteo/ERA5, 2015–2024)
MonthRain days3 days: ≥ 1 hit5 days: ≥ 1 hitCover days (5 d, 90 %)Sun/dayMean temp
January648 %66 %26.3 h3.0 °C
February863 %81 %36.7 h5.9 °C
March964 %82 %38.7 h9.2 °C
April966 %83 %310.5 h13.2 °C
May1689 %97 %410.6 h17.2 °C
June1175 %90 %313.0 h22.5 °C
July1277 %91 %313.5 h25.0 °C
August1069 %86 %312.0 h24.5 °C
September1070 %87 %310.1 h19.6 °C
October1277 %91 %37.4 h14.6 °C
November1175 %90 %35.7 h8.4 °C
December754 %72 %25.2 h3.9 °C

When to shoot exteriors in Milan

Weighing daylight against rain days, June comes out best: 15 h 39 min of daylight, 11 rain days and 13.0 hours of sunshine a day. The sunniest month is July (13.5 h a day).

The month matters here: five exterior days run a 66 % risk of losing at least one day in January, but 97 % 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 10.6 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 Milan?

May, with 16 days of at least 1 mm rain on average (2015–2024). The driest is January with 6.

How many cover days should I plan for an exterior shoot in Milan?

For five exterior days and 90 % certainty: 2 in January, 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.