Open Travel Guide
Weather in Sinop

Sinop Weather & Climate Guide 2026

When to visit Sinop: real monthly data on temperature, rain, and crowds — not vibes.

Weather through the year in Turkey

8° JAN 9° FEB 12° MAR 16° APR 21° MAY 26° JUN 29° JUL 30° AUG 26° SEP 20° OCT 14° NOV 9° DEC

Best time Shoulder Worth avoiding

Average daytime temperature in °C. Figures are for Turkey.

Sinop occupies a narrow peninsula jutting into the Black Sea, giving it harbors on two sides and a dramatic coastal character unlike any other Turkish city. Birthplace of Diogenes the Cynic, Sinop blends Hellenic foundations, Byzantine stonework, Seljuk fortifications, and Ottoman layers into a compact old town ringed by intact 7th-century BC walls. The city's fishing fleet, legendary anchovies (hamsi), pine-clad headlands, and calm bay beaches make it a rewarding destination for travelers seeking authenticity over tourist infrastructure.

Sinop has a humid Black Sea climate (Köppen Cfb) with mild, wet winters and warm, moderately humid summers. It receives roughly 700–800 mm of rainfall per year, spread across all months, with the wettest period being October–January. Summer (July–August) is the warmest and driest period, making it the peak tourist season. Snow is possible but rare at sea level.

Best time to visit

Recommendation

Best: Year-round

Avoid: None

Month-by-month weather

Typical conditions throughout the year.

Items

The seasons

What to expect in each part of the year.

Season

Items

Crowds & peak times

When to expect tourists and when to avoid them.

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  • Month
    July
    Crowd level
    High
    Tip
    Book accommodation 4–6 weeks ahead for July–August weekends.
  • Month
    August
    Crowd level
    High
    Tip
    Highest domestic tourist numbers; midweek stays are calmer.
  • Month
    May
    Crowd level
    Moderate
    Tip
    Great value and comfortable weather; some beach infrastructure not yet open.
  • Month
    September
    Crowd level
    Moderate
    Tip
    Ideal balance of warm sea, lower prices, and reduced crowds.

Major events & festivals

Time your visit around what matters.

July

Sinop Culture & Art Festival

October

Hamsi (Anchovy) Season Opening