Late summer is in full swing. Our weather hasn’t changed for days. It is mostly sunny and almost cloudless. But next week that will change.
The cause is a stable Omega weather situation with a high pressure area over Central Europe and low pressure areas in the southwest and southeast of Europe. The result is this weather situation, which is not very exciting for us meteorologists, with lots of sunshine, day after day.
But the new week brings changes: the high pressure area with its warm air mass will stay with us until the beginning of next week. But then it weakens and so does the structure of the Omega layer. The high moves east and low pressure areas then have the chance to reach Central Europe again from the Atlantic with a westerly current.
A low pressure area crossed the British Isles earlier this week and headed towards Scandinavia. Its cold front will reach northwest Germany on Tuesday. During the day, showers and thunderstorms are increasingly forming in the northwest half of Germany, which can sometimes be strong. So there is a lot of variety in the weather kitchen again. By Wednesday, the cold front will cross us completely and cause noticeably cooler air across the country.
Until Monday, the maximum values are still stable in the summer range between 25 and mostly 32 degrees. It usually stays a little cooler on the coasts. From Tuesday onwards, a significantly cooler air mass will reach us from the North Sea and will only allow the maximum values to rise to around 18 to 25 degrees on Wednesday. This is by no means too cool for September, but rather average.
In Düsseldorf, the average maximum temperature is currently 26.2 degrees, which is around 5 degrees higher than the long-term average from 1961 to 1990. This deviation will increase somewhat by Monday, as we continue to expect highs of around 31 degrees. Only from Wednesday onwards will the maximum values be back around the average range of 21 to 22 degrees.
The first third of September is over on Sunday and we can already summarize that this third was significantly too warm and too sunny. On Sunday, around 70 percent of the average sunshine duration will occur in large parts of Germany. In the south and in the northern half, almost no rain fell, while in a wide strip from North Rhine-Westphalia to the Ore Mountains, an area of precipitation moved away on September 1st, bringing with it around 20 to 40 liters per square meter of rain. The leader here was Solingen-Hohenscheid with 55.2 liters per square meter.