High temperatures were also logged at weather stations in Kahl am Main in Bavaria, and at Frankfurt Airport, with the Mercury reaching 37.5C at both locations.
The previous highest temperature of the year 38.5C – measured on July 31st in Rheinfelden in southern Baden.
In the summer of 2019, Germany's hottest day ever was recorded, with the Mercury reaching 42.6C in Lingen, Lower Saxony.
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Warm temperatures to come
Germany saw an especially warm weekend, in which temperatures around the country ranged from 32 to 38C, while pools and lakes around the country filled to maximum capacity.
Now the heat wave is slated to stretch into the coming week.
Monday will become increasingly muggy with temperatures up to 37C, especially in the southwest. Areas by the sea will stay slightly cooler, or around 28C.
Some thunderstorms with heavy rain, possibly hail and squalls of up to 85 kilometers per hour are expected.
A man jumping into a pool in Bad Köstritz, Thuringia. Photo: DPA
In Berlin, the Mercury is expected to reach up to 32C, in both Frankfurt and Cologne 34C, and in Munich 31C.
On Tuesday and Wednesday, temperatures will again stretch between 30 and 37C, according to meteorologists, but it will remain mostly dry.
On Wednesday it will be mostly sunny and dry, especially in the northern part of the country. The mercury is slated to reach 28C in coastal areas, and stay between 30 and 36C, especially in southwest Germany.
Mit der Hitze sind Gewitter dazugekommen. Wo es heute und in den nächsten Tagen kracht, können Sie im heutigen Thema des Tages lesen. https://t.co/exdiEED7s0. Die Abbildung stellt die aktuelle Lage und die Gebiete (Gewittersymbole), wo heute Gewitter erwartet werden, dar. /V pic.twitter.com/C4qxabrstI
— DWD (@DWD_presse) August 10, 2020
DWD tweeted an image of parts of the country (with a red sign) that will be affected by stormy weather on Monday.
To better prepare Germany for more heat waves and the public health consequences they carry, Green Party leader Robert Habeck on Monday called for a “heat plan”.
Habeck told the DPA that a uniform, graduated heat warning system was needed throughout Germany.
“There should be a nationwide hotline, with special attention given to risk groups,” he said. “Cool rooms” with air conditioning should also be set up in health care facilities, said Habeck.
“The current summer heat does not come as a surprise,” Habeck said. “Such heat waves will be the new norm.”