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When To Go · Country Guide

Turkey

Four seas, endless coves: reefs, walls, wrecks, and a coastline made for slow travel

Updated Dec 7, 2025 • 23 sources

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When To Go

Season planner for Turkey

Turkey's main water season runs from May through October. For the best balance of warm water and fewer crowds, aim for May to June or September to October. July and August deliver the warmest sea, but the Aegean can be windier and bays busier. Winter diving is possible on the south coast in calm windows, but expect cooler water and fewer boats.

At A Glance Heatmap

ActivityJanFebMarAprMayJunJulAugSepOctNovDec
Overall
Scuba
Freedive
Snorkel
Topside

Activity Drilldowns

PrimeShoulderPlan Carefully
Overall
May - October·Crowd:Moderate·Cost:Midrange
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Beach season with warm sea 23°C to 28°C

Plan Carefully: Cooler air, more rain systems, and variable winds up to 40.0 kph

The Mediterranean coast stays warmer longer than the Aegean.

Scuba
May - June & September - October·Crowd:High·Cost:Midrange
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Warm water, steadier seas, and better trip flexibility

Plan Carefully: Cooler water 13°C to 18°C and stormier passages

For the warmest winter and early spring dives, stick to the Mediterranean side.

Freedive
June - October·Crowd:Moderate·Cost:Midrange
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Good surface calm and sea temps 23°C to 27°C

Plan Carefully: Cooler sea and more swell; choose sheltered coves

Early morning is often the best freedive window in July and August, especially on the Aegean where breezes build later in the day.

Snorkel
June - September·Crowd:High·Cost:Midrange
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Warmest water 24°C to 28°C and the best all-day comfort

Plan Carefully: Cooler sea and more wind; pick protected coves and short sessions

The Mediterranean coast usually stays comfortable longer into October than the Aegean.

Topside
April - June & September - October·Crowd:Moderate·Cost:Midrange
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Comfortable sightseeing temps 18°C to 28°C

Plan Carefully: Peak heat/crowds on the coast, and winter storms in some regions

Shoulder seasons are ideal for coastal hikes and ruins.

Seasonal Callouts Timeline

  • Loggerhead sea turtle nesting (Mediterranean beaches)

    JanJan
    FebFeb
    MarMar
    AprApr
    MayMay
    JunJun
    JulJul
    AugAug
    SepSep
    OctOct
    NovNov
    DecDec

    On parts of the Mediterranean coast, nesting season brings a higher chance of turtle sightings near shore. Give turtles plenty of space and avoid lights on nesting beaches at night.

  • Sea turtle hatchlings (selected beaches)

    JanJan
    FebFeb
    MarMar
    AprApr
    MayMay
    JunJun
    JulJul
    AugAug
    SepSep
    OctOct
    NovNov
    DecDec

    Late summer can align with hatchling season on protected beaches. Observe quietly from a distance and follow local guidance to avoid disturbing nests.

  • Mediterranean monk seal (rare)

    JanJan
    FebFeb
    MarMar
    AprApr
    MayMay
    JunJun
    JulJul
    AugAug
    SepSep
    OctOct
    NovNov
    DecDec

    Rare sightings are possible in quiet coastal areas and cave zones. If you are lucky enough to see one, keep distance, do not approach, and never enter sealed cave shelters.

  • Schooling fish and clearer-water days

    JanJan
    FebFeb
    MarMar
    AprApr
    MayMay
    JunJun
    JulJul
    AugAug
    SepSep
    OctOct
    NovNov
    DecDec

    Early fall often brings a good mix of warm water and clearer conditions for photographing schools around reefs and walls.

  • Blue Voyage sailing season

    JanJan
    FebFeb
    MarMar
    AprApr
    MayMay
    JunJun
    JulJul
    AugAug
    SepSep
    OctOct
    NovNov
    DecDec

    Gulet cruising season overlaps peak swim weather, making it easy to add snorkel coves and beach days to a dive itinerary.