Hamburg records about 774mm of rain across roughly 131 wet days a year, which is a 36% chance on an average day. July is the wettest month at 80mm (10% of the annual total) and February the driest at 42mm. Local rain type: drizzle. Hamburg earns its "rainy city" reputation. A quality waterproof jacket is essential year-round — compact umbrellas struggle against the persistent wind-driven drizzle.
Chance of rain on an average day: 36%
Rainfall climatology for Hamburg. 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 | 774mm |
| Rain days per year | 131 |
| Odds on an average day | 36% |
| Wettest month | July — 80mm over 14 days |
| Driest month | February — 42mm over 7 days |
| Rain type | drizzle |
| Best dry window | May and early June offer the best balance of dry days and pleasant temperatures. |
| Worst rain window | June through August paradoxically brings the heaviest rainfall, though summers also have the most sunshine hours. |
July delivers 90% more rain than February (80mm vs 42mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 10% of the annual total, so rain in Hamburg is spread through the year — there is no season you can rely on being dry.
Hamburg rain is mostly persistent drizzle, where a waterproof shell beats an umbrella.
Rain falls on about 14 days in July against 7 in February — 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 | 60mm | 10 | 33% | 4°C |
| February | 42mm | 7 | 23% | 4°C |
| March | 55mm | 9 | 30% | 7°C |
| April | 45mm | 8 | 27% | 11°C |
| May | 57mm | 10 | 33% | 15°C |
| June | 77mm | 13 | 43% | 19°C |
| July | 80mm | 14 | 47% | 22°C |
| August | 78mm | 13 | 43% | 22°C |
| September | 67mm | 12 | 40% | 19°C |
| October | 68mm | 12 | 40% | 15°C |
| November | 66mm | 11 | 37% | 11°C |
| December | 68mm | 12 | 40% | 7°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Hamburg 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.
Hamburg records rain on roughly 131 days a year — about a 36% chance on any given day — totalling around 774mm.
July, with about 80mm over 14 rain days. That is 10% of the entire year's rainfall in a single month.
February is the driest month at 42mm across roughly 7 days. May and early June offer the best balance of dry days and pleasant temperatures.
Hamburg earns its "rainy city" reputation. A quality waterproof jacket is essential year-round — compact umbrellas struggle against the persistent wind-driven drizzle.
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.