A German folk rule, which predicts that the weather on a traditional feast day will be repeated over the following seven weeks, has been spot-on this year, meterological experts have said.
Variable weather conditions on June 27 this year have also marked the succeeding days, meteorologist Adrian Leiser told dpa. "It was indeed the case that in the weeks until now, mid-August, that these weather characteristics were reaffirmed again and again," Leiser said.
Summer in Germany since then has brought cool phases with rainfall, interrupted by short warm periods: typical, according to experts.
The seven-week phase after Seven Sleepers' Day, as the holiday is known, is over on Monday. "In contrast to other folk proverbs, the Seven Sleepers' Day rule has a fairly good success rate," Leiser said.
When putting together their Seven Sleepers' Day analysis, however, meteorologists pull data from a longer time period, the end of June until the beginning of July, as well as historical weather patterns.
"The large-scale weather pattern is the crucial factor, and that can't be determined just based on one day," Leiser said.