Weather on October 25, 2025: Yellow Alert for 12 Cities, Heavy Rain Warning Across Turkey

Widespread Rain and Temperature Drop

The Turkish State Meteorological Service (MGM) has warned of a new wave of rainy weather spreading across most regions. Marmara and the Black Sea will see strong showers and thunderstorms, while sleet and mixed rain are expected over the higher parts of Eastern Anatolia.

Temperatures will fall by 3 to 5 degrees across Marmara and the Western Black Sea, while other regions will see little change. Winds are expected mainly from southern directions, blowing light to moderate.

12 Cities Under Yellow Alert

A yellow-coded warning was issued for Bolu, Bursa, Istanbul, Kastamonu, Kocaeli, Sakarya, Sinop, Zonguldak, Bartın, Yalova, Karabük, and Düzce due to the risk of heavy rainfall and localized thunderstorms.

Istanbul: Cloudy and Rainy Day Ahead

Istanbul will experience a partly to mostly cloudy sky with occasional showers and thunderstorms throughout the day. Temperatures will hover around 20°C, while rainfall may intensify in some districts during the evening hours. Drivers are advised to watch for slippery roads and sudden downpours.

Muğla and the Aegean: Evening Showers to Ease

In Muğla, the day will start mostly cloudy with intermittent showers expected until evening. Temperatures will stay mild at around 22°C. The rest of the Aegean coast, including İzmir and Çanakkale, will see a mix of clouds and showers tapering off toward night.

Antalya and the Mediterranean: Thunderstorms in the Afternoon

The Mediterranean region, especially Antalya, Adana, Hatay, and Osmaniye, will face scattered showers and thunderstorms in the afternoon. In Antalya, temperatures will reach 25°C, but localized storms could bring brief heavy rain, particularly in coastal districts.

Rest of Turkey: Mixed Conditions Across Regions

Ankara, Çankırı, and Sivas in Central Anatolia will see cloudy skies with intermittent rain during the afternoon and evening.
The Western Black Sea region, including Bolu, Düzce, and Zonguldak, faces strong local thunderstorms.
In Eastern Anatolia, Kars and Ardahan will experience light rain mixed with sleet.
Meanwhile, Southeastern Anatolia, including Diyarbakır, Gaziantep, and Mardin, will remain partly cloudy and dry.

Summary

Turkey will see a mix of rain, thunderstorms, and falling temperatures on October 25, 2025, particularly affecting the Marmara, Black Sea, and Mediterranean regions. Residents in Istanbul, Muğla, and Antalya should stay alert for unstable weather and plan their day accordingly.

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