Cairo records about 25mm of rain across roughly 6 wet days a year, which is a 2% chance on an average day. December is the wettest month at 6mm (24% of the annual total) and June the driest at 0mm. Local rain type: brief showers. Not needed. Cairo is one of the driest major cities on Earth. On the rare occasions it rains, it's a light sprinkle that evaporates quickly. Sun protection is far more important.
Chance of rain on an average day: 2%
Rainfall climatology for Cairo. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 25mm |
| Rain days per year | 6 |
| Odds on an average day | 2% |
| Wettest month | December — 6mm over 1 days |
| Driest month | June — 0mm over 0 days |
| Rain type | brief showers |
| Best dry window | Every month is essentially dry. March through May can bring khamsin sandstorms — more concerning than rain. |
| Worst rain window | December and January bring the "heaviest" rain — still negligible at about 5mm per month. |
December delivers 600% more rain than June (6mm vs 0mm). That gap is the difference between planning around showers and ignoring them.
24% of the year's rain falls in December alone, so Cairo has a genuine wet season rather than evenly spread showers.
Cairo rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 1 days in December against 0 in June — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 5mm | 1 | 3% | 19°C |
| February | 4mm | 1 | 3% | 19°C |
| March | 4mm | 1 | 3% | 21°C |
| April | 1mm | 1 | 3% | 25°C |
| May | 1mm | 1 | 3% | 30°C |
| June | 0mm | 0 | 0% | 34°C |
| July | 0mm | 0 | 0% | 36°C |
| August | 0mm | 0 | 0% | 36°C |
| September | 0mm | 0 | 0% | 34°C |
| October | 1mm | 1 | 3% | 30°C |
| November | 4mm | 1 | 3% | 25°C |
| December | 6mm | 1 | 3% | 21°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Cairo we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Cairo records rain on roughly 6 days a year — about a 2% chance on any given day — totalling around 25mm.
December, with about 6mm over 1 rain days. That is 24% of the entire year's rainfall in a single month.
June is the driest month at 0mm across roughly 0 days. Every month is essentially dry. March through May can bring khamsin sandstorms — more concerning than rain.
Not needed. Cairo is one of the driest major cities on Earth. On the rare occasions it rains, it's a light sprinkle that evaporates quickly. Sun protection is far more important.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.