Weather risk planner
Weather risk for filming in Cape Town
Three exterior days in Cape Town in June: rain hits at least one with 75 % probability. In January it is 26 %. The tool is set to Cape Town — enter your own days.
- At least one day hit
- 75 %
- 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 Cape Town, month by month
Cape Town averages 11 rain days in June and 3 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.
| Month | Rain days | 3 days: ≥ 1 hit | 5 days: ≥ 1 hit | Cover days (5 d, 90 %) | Sun/day | Mean temp |
|---|---|---|---|---|---|---|
| January | 3 | 26 % | 40 % | 1 | 13.3 h | 21.3 °C |
| February | 3 | 29 % | 43 % | 1 | 12.2 h | 21.1 °C |
| March | 4 | 34 % | 50 % | 2 | 10.9 h | 19.6 °C |
| April | 5 | 42 % | 60 % | 2 | 9.9 h | 17.6 °C |
| May | 7 | 54 % | 72 % | 2 | 8.7 h | 15.6 °C |
| June | 11 | 75 % | 90 % | 3 | 8.0 h | 13.9 °C |
| July | 10 | 69 % | 86 % | 3 | 8.4 h | 13.0 °C |
| August | 11 | 73 % | 89 % | 3 | 9.0 h | 13.1 °C |
| September | 8 | 61 % | 79 % | 3 | 10.0 h | 14.4 °C |
| October | 6 | 48 % | 66 % | 2 | 11.9 h | 16.9 °C |
| November | 5 | 42 % | 60 % | 2 | 12.5 h | 18.1 °C |
| December | 5 | 41 % | 58 % | 2 | 13.1 h | 19.7 °C |
When to shoot exteriors in Cape Town
Weighing daylight against rain days, January comes out best: 14 h 10 min of daylight, 3 rain days and 13.3 hours of sunshine a day. The sunniest month is January (13.3 h a day).
The month matters here: five exterior days run a 40 % risk of losing at least one day in January, but 90 % in June — 1 against 3 cover days for 90 % certainty.
Rain days are not grey days: even in June, the wettest month, the sun shines 8.0 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 Cape Town?
June, with 11 days of at least 1 mm rain on average (2015–2024). The driest is January with 3.
How many cover days should I plan for an exterior shoot in Cape Town?
For five exterior days and 90 % certainty: 1 in January, 3 in June. 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.