1. Skip to content
  2. Skip to main menu
  3. Skip to more DW sites
Brown grass from extended sun and dry conditions in a Cologne park
Image: picture-alliance/Geisler-Fotopress/C. Hardt

Germany swelters under heat wave

July 26, 2018

High temperatures and a prolonged drought are disrupting daily life in Germany. Ship cargo on the River Rhine has been reduced by half and fish populations have been threatened by high water temperatures.

https://p.dw.com/p/328uV

Germany had its hottest day of the year on Thursday, according to the National Meteorological Service (DWD) with the mercury topping 32 degrees Celsius (90 degrees Fahrenheit) in Berlin and 37 degrees Celsius in the city of Cologne, in western Germany.

Unrelenting sunshine has hit most of the country and a spring drought continues. Northern Germany faces the threat of wildfires. In Potsdam, just west of Berlin, a wildfire engulfed 90 hectares (222 acres) on Thursday and triggered warning for possible evacuations in the community of Fichtenwalde, where 2,800 people live.

A firefighter works to contain the wildfire in Potsdam
A firefighter worked quickly to contain the wildfire in PotsdamImage: picture-alliance/dpa/C. Pörschmann

Drivers have had to slow down on many of the country's highways. To avoid road accidents, triggered by the stress that excessive heat can cause to fast-moving vehicles, authorites have implemented temporary speed limits. On the A81 expressway, which runs along western Germany and through the city of Stuttgart, authorities have set a maximum driving limit of 80 kilometers (50 miles) per hour.

A city fountain in the city of Cologne
City fountains help citizens keep cool in Cologne's extreme heatImage: picture-alliance/Geisler-Fotopress/C. Hardt

Water a refuge? Not so fast

This weekend, many Germans are likely to hit the various lakes and reservoirs that dot their country's landscape, in search of a reprieve from the oppressive heat. But they will have to be cautious, warmer waters have caused an increase in harmful bacteria and algae in stagnant waters.

In the northeastern state of Mecklenburg-West Pomerania the growth of blue-green algae has been reported, which can cause irritation of the skin and of the mucus membranes. In Lake Müritz, on the southern end of the state, the cercaria parasite has been detected, which causes skin rashes and can last several days.

Read more: What you need to know about climate change

Rhine River affected

The lingering spring drought has driven the Rhine River and its tributaries to dangerously low levels, disrupting transportation of goods in this vital waterway. Restrictions in shipping are already in place in the upper Rhine.

According to the Mannheim office of the federal Waterway and Shipping Department, ships can only be loaded on the river with 1,500 tons of cargo, down from their usual weight of 3,000 or more.

A large sandbar in the rhine river Rhine due to a pronlongued drought
Low water levels in the Rhine River disrupt transportation of goodsImage: picture alliance/dpa

High water temperatures are also posing a serious threat to the fish population in the Rhine. Between Lake Constance and the Swiss town of Schaffhausen, where the river flows just before it makes its way north to German territory, the temperature of the water has hit 25 degrees Celsius. The fish in the area can die at 27 degrees.

Up north in the state of Rhineland-Palatinate, heat emitted into the water by various power plants is contributing to the dangerous 28-degree point in the Rhine.

The federal Environment and Nature Conservation Administration has warned that death is not the only threat for fish in the river. Warm waters also delay their migration, as they deviate from their path in search of colder streams, and that could threaten their nesting patterns. For this reason, the environmental department is asking states to implement controls on power plants for the time being, in an attempt to stop the rising temperatures.

Read more: Will extreme weather become even deadlier?

No end in sight

According to weather forecasts, Germans will have to brace for a prolonged heat wave with no end in sight. On Friday, temperatures are supposed to remain as high as Thursday or perhaps a bit higher. Temperatures are forecasted to hover around 30 degrees for the next week in the hottest areas, such as western Germany.

jcg/rt (DPA, AFP)

Each evening at 1830 UTC, DW's editors send out a selection of the day's hard news and quality feature journalism. You can sign up to receive it directly here.

Skip next section Explore more
Skip next section DW's Top Story

DW's Top Story

French President Emmanuel Macron and German Chancellor Olaf Scholz welcome Ukraine's President Volodymyr Zelenskyy before their meeting at the Elysee Palace in Paris

Ukraine updates: Macron, Scholz meet Zelenskyy in Paris

Skip next section More stories from DW
Go to homepage