Balkan temperatures swing as heavy rain heads for Greece

Clear skies bring warm days and cold nights to Montenegro, while a low-pressure system moves towards Aegean Sea

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Temperatures fluctuated dramatically in the Balkans last week, with unusually large differences between daytime highs and overnight lows – known as the diurnal range.

An area of high pressure over the region brought prolonged sunshine during the day, while clear skies at night allowed temperatures to drop rapidly as heat escaped into the atmosphere without cloud cover to slow the cooling.