Weather risk planner
Weather risk for filming in Lisbon
Three exterior days in Lisbon in November: rain hits at least one with 70 % probability. In July it is 9 %. The tool is set to Lisbon — enter your own days.
- At least one day hit
- 70 %
- 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 Lisbon, month by month
Lisbon averages 10 rain days in November and 1 in July. 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 | 7 | 54 % | 72 % | 2 | 7.7 h | 11.4 °C |
| February | 7 | 57 % | 76 % | 3 | 8.5 h | 12.3 °C |
| March | 9 | 64 % | 82 % | 3 | 9.9 h | 13.4 °C |
| April | 9 | 66 % | 83 % | 3 | 11.1 h | 15.4 °C |
| May | 5 | 41 % | 58 % | 2 | 12.4 h | 18.1 °C |
| June | 4 | 35 % | 51 % | 2 | 13.3 h | 20.1 °C |
| July | 1 | 9 % | 15 % | 1 | 13.4 h | 22.1 °C |
| August | 1 | 9 % | 15 % | 1 | 12.4 h | 22.5 °C |
| September | 4 | 35 % | 51 % | 2 | 11.1 h | 21.1 °C |
| October | 9 | 64 % | 82 % | 3 | 9.1 h | 18.8 °C |
| November | 10 | 70 % | 87 % | 3 | 7.6 h | 14.9 °C |
| December | 8 | 59 % | 78 % | 3 | 7.4 h | 12.9 °C |
When to shoot exteriors in Lisbon
Weighing daylight against rain days, July comes out best: 14 h 37 min of daylight, 1 rain days and 13.4 hours of sunshine a day. The sunniest month is July (13.4 h a day).
The month matters here: five exterior days run a 15 % risk of losing at least one day in July, but 87 % in November — 1 against 3 cover days for 90 % certainty.
Rain days are not grey days: even in November, the wettest month, the sun shines 7.6 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 Lisbon?
November, with 10 days of at least 1 mm rain on average (2015–2024). The driest is July with 1.
How many cover days should I plan for an exterior shoot in Lisbon?
For five exterior days and 90 % certainty: 1 in July, 3 in November. 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.