ハンブルク 12月の天気

Hamburg forum regulars are consistent that December is wind and rain rather than snow: “temperatures are likely to be between 0 and 10°C,” with icy rain and sleet happening “quite frequently throughout December in Northern Germany...more common than snow” — snow itself is called “very unlikely,” though an occasional shower does happen. Standard advice is layering under a genuinely wind- and waterproof jacket rather than counting on a snowy postcard scene. The city leans hard on indoor options for the weather: the Kunsthalle, the Hamburg Museum, the technical museum and Miniaturwunderland all get named as reliable fallbacks, alongside Christmas markets at Rathausmarkt, Jungfernstieg and Altona. Our record: 5.3°C days, 1.6°C nights, 15.6 rain days and 5.3cm of snow — cool, wet and windy, matching the “rain and sleet over snow” read.

Regulars are direct that this can be a genuinely sunny month here, pushing back on the city's general reputation for rain, while also noting Hamburg's northern, coastal position tends to make it cooler than many other parts of Germany at the same time of year. Our row backs the mild, still-real-rain read, 20C over 10.4C nights, with 60.3mm of rain across 9.6 days. Regulars call this a genuinely good time to visit overall, with rooms easier to find once school and work schedules pull the summer crowds away. The record: humidity 76 percent, 8.4 hours of sun, a 17 kph wind and AQI 46.

May can already be warm here, regulars say, and then add the northern German caveat in the same breath: take a jacket, because you never know. Our row gives 18.7C reading as 17C in an 18 kph wind, over nights that still fall to 7.6C. The city's reputation for bad weather overstates this month - 52.5mm across 8.8 days with 11.2 hours of sun inside 15.9 of daylight is a good spring by any measure - but the showers are frequent enough that a light waterproof earns its place. Early May brings the harbour's birthday festival, when the Elbe fills with tall ships and the parks are in blossom. The record: humidity 70 percent, a dew point of 7.5C and AQI 46.

Regulars own the city's reputation rather than arguing with it - Hamburg is famous for bad weather - and then qualify it usefully: July normally runs 20 to 30C with an average high near 22C, warm and sunny is the expectation, and what breaks it is extended changeable spells with rain and afternoon or evening thunderstorms. Our row gives 23.1C over 13.1C with 87.3mm across 12.2 days, so rain falls on about two days in five. The compensation is light: 11.3 hours of sun inside 16.4 of daylight. The record: humidity 73 percent, a 17.4 kph wind and AQI 46.

Hamburg-forum threads on August describe pleasant, unremarkable weather: mild days, cool evenings, a light breeze off the Elbe that feels warm rather than blustery, and no strong winds to plan around. Rain is called a chance of a light shower or two rather than a defining feature of the month, good news for the riverside walks and park time regulars recommend. The record runs a touch wetter than the forum chat suggests, though still comfortably in the pleasant range: 23.6C days feeling like 24C, 13C nights, 60mm of rain across nearly twelve days, 10.6 hours of sun and an AQI of 46 - more days with at least some rain than the casual read implies, just rarely enough to spoil a plan.