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Record warm nights have been measured in Europe.
In several places it has been warmer than a normal July night.
– It is in line with what we can expect from climate change, says meteorologist Lasse Rydqvist.
On the night of Monday, Denmark had its warmest November night ever. Between Sunday and Monday, the average temperature was 13.3 degrees, according to Danish media.
In Skrydstrup in southern Jutland, it went up to a whopping 15.8 degrees.
Denmark is not alone. The night has been unusually warm in many parts of Europe and hundreds of heat records have been broken.
Ten degrees above normal
In Lasseube, France, it was 26.9 degrees just before 5 o’clock this morning.
Colunga in Spain was 27.9 degrees last night, and the Netherlands, Belgium and the UK have also had temperatures of 18-19 degrees.
In Germany, a new national heat record was broken for a November night when Baden Geroldsau had the coldest 17.8 degrees.
– It is extreme in the way that the temperatures in these countries down towards Spain are ten degrees above what you normally see – in July, says Lasse Rydqvist, meteorologist at Klart.
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full screen Crowds in Paris this weekend. Photo: Thibault Camus/AP
More common with warm winter nights
The heat is due to air mass that rose from West Africa mixed with the Föhn effect, that is what happens when moist air blows in over a mountain range and then descends drier on the other side.
Lasse Rydqvist explains that the heat is probably a sign of the human-made climate changes.
– It is in the nighttime winter temperatures that you see the biggest difference from normal. The heating takes place faster at night during winter. So what we see now is an example of something we will see more of – the warm winter nights.
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full screen The night towards Monday brought summer temperatures in many parts of Europe. Photo: Metociel
13 degrees in Gothenburg
Sweden has also been hit by the late heat. However, not in such a dramatic way.
– But we still went from basically seven minus degrees to seven plus in southern Sweden quite quickly. And we’ve had double-digit plus degrees here too.
For example, it was 13 degrees in Gothenburg last night – and 14 degrees during the morning.
– If you look at what it usually looks like in November, we can compare it to what we normally have for the lowest temperature – that’s three plus degrees.
How long does the heat last?
– These “mild air attacks” come in waves. Now they will move further east, and it won’t be quite the same warm air mass tonight and tomorrow, says Lasse Rydqvist.