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Indian summer arrives in mid-October

Ljubljana, 10 October - After a gloomy and wet September, Slovenians can look forward to a dry, warm and sunny spell in mid-October, meteorologists say. The period of stable weather with daytime highs in the 20s will start towards the end of this week.

Ljubljana
Autumn.
Photo: Tamino Petelinšek/STA

After the gloomiest September in the last half a century, mid-October will bring sunny and warm days, meteorologist Brane Gregorčič from the Environment Agency told the STA, noting that morning fog was nevertheless expected.

September saw the least sunny days in the last 50 years and after January it was only the second month with bellow-average temperatures, the agency's data show.

The warm spell in October will also bring big differences between morning temperatures and daytime highs due to temperature inversion, Gregorčič told the STA.

Due to fog, morning temperatures can drop as low as 5 degrees Celsius, while during the day, when the sun is out in force, the mercury can rise up to 25 degrees.

The hottest October day was recorded in 2011, when it warmed up to 30 degrees in the village of Slap near Vipava in the south-west on 5 October.

In the last two years, the temperatures rose above 20 degrees in October only a few times in Slovenia.

The last time that meteorologists spoke of an Indian summer in October was in 2014, when temperature exceeded 25 degrees six times in the city of Murska Sobota, which is a 50-year record.

There were, however, some extraordinarily warm days in that period, for example on 23 October 1971, when the temperature rose to 29.8 degrees in the south-eastern town of Črnomelj.

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© STA, 2017