Istanbul Weather on Wednesday, October 21, 2026

What to wear and what to watch out for

• Cool in the morning and evening: dress in layers and bring a sweater or jacket.
• A good day for outdoor activities.

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• Adalar20° / 13°0%
• Arnavutköy21° / 12°0%
• Ataşehir22° / 11°0%
• Avcılar19° / 11°0%
• Bağcılar22° / 11°0%
• Bahçelievler19° / 12°0%
• Bakırköy19° / 12°0%
• Başakşehir21° / 11°0%
• Bayrampaşa21° / 11°0%
• Beşiktaş21° / 11°0%
• Beykoz20° / 13°0%
• Beylikdüzü20° / 10°0%
• Beyoğlu20° / 11°0%
• Büyükçekmece20° / 11°0%
• Çatalca21° / 10°0%
• Çekmeköy21° / 11°0%
• Esenler21° / 11°0%
• Esenyurt21° / 11°0%
• Eyüpsultan20° / 11°0%
• Fatih21° / 11°0%
• Gaziosmanpaşa21° / 11°0%
• Güngören22° / 11°0%
• Kadıköy21° / 12°0%
• Kağıthane21° / 12°0%
• Kartal21° / 12°0%
• Küçükçekmece20° / 12°0%
• Maltepe20° / 13°0%
• Pendik20° / 10°0%
• Sancaktepe21° / 12°0%
• Sarıyer21° / 13°0%
• Şile19° / 10°0%
• Silivri21° / 10°0%
• Şişli21° / 11°0%
• Sultanbeyli20° / 10°0%
• Sultangazi21° / 11°0%
• Tuzla21° / 12°0%
• Ümraniye22° / 11°0%
• Üsküdar21° / 11°0%
• Zeytinburnu20° / 11°0%

Frequently asked questions

Will it rain in Istanbul on Wednesday, October 21, 2026?

Most likely not: the chance of rain is 0%.

What will the temperature be in Istanbul on Wednesday, October 21, 2026?

A high of 21°C and a low of 12°C are expected. Conditions: overcast.

What time are sunrise and sunset in Istanbul on October 21, 2026?

Sunrise is at 07:21 and sunset at 18:14 (local time); day length 10 h 53 min.

How reliable is this forecast?

Forecasts for the first 3 days are usually highly accurate; this page is updated about every 30 minutes.