It's hard to tell with Monday starting out gray and dreary, but the summer is not yet over for the Netherlands. Late summer weather, with temperatures above 20 degrees and maybe even as high as 30 degrees, is heading to the Netherlands from Sunday, Weeronline expects.
Maximum temperatures in De Bilt will not reach 20 degrees on Friday, bringing an end to a record long streak of nationally warm days in the Netherlands, according to Weerplaza.
A national warm day is when maximums reach at least 20 degrees at the national weather station in De Bilt. That has been the case everyday from June 25th till August 23rd - 60 consecutive warm days. The previous record was 53 warm days in 2003.
Maximum temperatures in De Bilt climbed to 20 degrees on Saturday, making it the 100th national warm day in the Netherlands this summer, according to Weerplaza. Weeronline currently expects that the average maximum temperature in De Bilt this summer will come out at 19.1 degrees, which means that this summer is also the hottest summer since historical temperature measurements started in 1706.
So far this year the Netherlands had 51 summer days - days on which temperatures climbed to 25 degrees or higher in De Bilt, according to Weeronline. 2006 also had 51 summer days, but spread over the entire year.
Sunday was the 51st summer day of 2018. Only one more hot day is needed to break the 2006 record. This may happen on Wednesday or Thursday, when maximums of around 25 degrees are expected. Temperatures also often climb to above 25 degrees in late August and September, according to Weeronline. In 2006 the 51st summer day only happened on September 22nd.
A summer storm will hit the Netherlands on Thursday, according to Weeronline. Meteorological institute KNMI issued a code yellow warning for strong winds during the evening.
The hot weather in the Netherlands over the past weeks did not cause an increase in the number of deaths in the country, public health institute RIVM said. According to the institute, this is because many people who were already weakened passed away in the winter, and because the Dutch are getting better at protecting themselves against the heat, AD reports.
Tuesday will still be very hot in the Netherlands, but after Wednesday temperatures will drop to what is normal for August, according to Weerplaza. The weather service expects maximums of between 20 and 25 degrees later this week.
Maximums ranging between 30 and 37 degrees are expected for Tuesday. Cloud cover will increase from the afternoon, and there is a chance of showers or thunderstorms overnight.
There is officially a nationwide water shortage in the Netherlands, but the drinking water is not in danger, according to the Ministry of Infrastructure and Water Management. As the drought is expected to continue in the coming weeks, more measures may be taken to distribute the available water as well as possible, NU.nl reports.
Public health institute RIVM again implemented the National Heat Plan for Limburg, Noord-Brabant, Gelderland, Utrecht, Overijssel and Drenthe. Temperatures in these parts of the country will climb to between 30 and 35 degrees in the coming days, and minimums will not drop much below 20 degrees, according to meteorological institute KNMI.
The RIVM warns people in these provinces to stay hydrated, wear thin clothing that provide protection against the sun, stay in the shade, regularly apply sunscreen, and limit physical exertion during the hottest parts of the day.
Meteorologists expect that the Netherlands may face a second national heatwave by the end of this week. Over the coming week maximum temperatures of above 25 degrees, and sometimes even above 30 degrees, are expected.
For a national heatwave, the weather station at De Bilt must measure maximums of 25 degrees or above for five consecutive days, and three of those days must have maximums of 30 degrees or higher. "It is quite possible that we will reach that again at the end of this week. Then we'll have a second national heatwave", weatherman Maarten Stam said to RTL Nieuws.
This July was the driest ever since rainfall measurements started in the Netherlands. Only 11 millimeters of rain fell nation wide this month, breaking the previous record of 16 millimeters in July 1921, Weeronline reported on Tuesday.
On Tuesday, the last day in July, there is a chance of some rain in the north and west of the country. At most another 1 millimeter of rain will fall. Weeronline therefore feels safe to say the record is broken.
After a cloudy and cool Sunday, the Netherlands can expect sunnier and warmer days this week. Temperatures will climb as the week progresses, though probably not as high as last week's heatwave, Weerplaza expects.
Last night was the hottest night ever in the Netherlands since temperatures measurements started in 1901. The minimum in De Bilt was 23.6 degrees Celsius, breaking the previous record from 9 August 2004 of 20.8 degrees, Weerplaza reports.
Maastricht had a higher minimum temperature in 2012, but official records are always measured at the weather station in De Bilt.
Deelen in Gelderland was the warmest last night, with a minimum of 24.4 degrees. Flevoland, the Wadden area and the western parts of Zeeland all also had minimums of above 23 degrees Celsius.
The Netherlands is officially in the midst of a national heatwave. Temperatures measured 30 degrees at De Bilt at 11:20 on Thursday, the third consecutive day of maximums above 30 degrees, making a national heatwave a fact. Heat records were broken at 15 weather stations across the country, NU.nl reports.
For a national heatwave, De Bilt must have five consecutive days with maximums of 25 degrees or higher. Three of those days must measure temperatures of 30 degrees or higher.
It is currently drier in the Netherlands than it was on July 25th, 1976 - the driest year in the Netherlands since measurements started. The average precipitation across the Netherlands stands at 261 mm on Wednesday. In 1976 it was 257 mm, according to Weeronline.
Whether the absolute drought record from 1976 will be broken this year, depends on what August's rainfall will look like, according to the weather service. In 1976 the precipitation deficit increased to 363 mm in August.
The chance of smog formation is increasing due to the persistently high temperatures, public health institute RIVM warns. Air quality will be bad in the middle and east of the country while the high temperatures last, NU.nl reports.
The RIVM advises people sensitive to smog to stay indoors and limit physical exertion, especially in the late afternoon and the early evening, as air pollution is at its worst at those times.
Meteorological institute KNMI issued a code orange weather warning for extreme heat in the entire country, except for the Wadden area. The warning is in place from 10:00 a.m. on Wednesday until Friday.
Waterboards across the Netherlands warn swimmers to keep a careful eye out for blue-green algae during the hot days. The algae can cause serious skin and eye irritations for those who come into contact with it, the Telegraaf reports.
Blue-green algae already emerged on five beaches in the Flevopolder, for example.
Tuesday is the start of a very hot couple of days in the Netherlands. Weeronline expects temperatures to climb up to 37 degrees Celsius by the end of the week.
On Tuesday the eastern parts of the Randstad can expect maximums around 32 degrees. Rotterdam and Amsterdam will hit 30 degrees. The central parts of the country will see maximums between 32 and 35 degrees - the hottest it's been all year. The Wadden area, parts of Noord-Holland and along the west coast will be slightly cooler, with maximums ranging between 27 and 29 degrees, according to the weather service.
Public health institution RIVM implemented the National Heat Plan on Monday due to persistently hot weather expected this week. Maximums of 30 degrees or higher are expected in the Netherlands the coming days, and minimums won't drop below 20, according to meteorological institute KNMI.
Pay extra attention to the elderly during the coming hot days, the Red Cross advises. According to the aid organization, this vulnerable group is at risk of dehydration and overheating in the high temperatures expected for this week, NOS reports.
This summer is fast becoming the driest summer the Netherlands ever had. It seems almost certain that the drought record dating from the summer of 1976 will be broken in the coming days, meteorologist Brian Verhoeven of Buienradar said to RTL Nieuws.
There is a 60 percent chance of a national heatwave in the Netherlands next week, according to Weeronline. Widespread maximums of between 30 and 32 degrees Celsuis are expected from Tuesday onwards.
On Friday and over the weekend, maximums will range between 22 and 25 degrees along the coast and between 25 and 30 degrees in the rest of the country. "In fact, the heat wave already started in the vast majority of the country. It is only a matter of time until many weather stations meet the conditions", according to Weeronline.
The Netherlands can expect hot weather again from next week. There is even a 2 percent chance that temperatures could climb to 42 degrees Celsius, according to Weerplaza. That is much higher than the hottest temperature ever measured in the Netherlands - 38.6 degrees Celsius, measured in Warnsveld.