Karasu in Winter

In winter (December, January and February), Karasu sees average daytime highs around 9°C and overnight lows near 4°C, with 301 mm of precipitation over about 40 wet days across the season. It is the coldest season of the year and the wettest season of the year.

Across winter, daytime highs hold fairly steady around 9°C. The sky is clear or mostly clear about 23% of the time across winter, and the air most often feels dry.

Winter is Karasu's weakest season of the year to visit on our travel score. For the whole year in context, see Karasu's year-round climate.

Avg daytime high
9°C
coldest season of the year
Avg overnight low
4°C
Precipitation
301 mm
40 wet days
Avg wind
11 km/h
Travel score
1.8
weakest season of the year
Months
Dec · Jan · Feb

Temperature in Karasu in Winter

Average highAverage lowShaded bands: 10–90% of days

Across winter, daytime highs hold fairly steady around 9°C.

A typical winter day in Karasu reaches about 9°C and drops to 4°C overnight. The warmest of the three months is December, the coolest January.

-5°10°15°20°DecJanFeb

How winter really feels in Karasu

Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 19 that feel at or below 0°C.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
19
wind chill below the day's low

The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.

Karasu weather by month

How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 10213.44.79.41.4
Feb / 8612.63.910.41.7
Mar11° / 8712.9211.72.6
Apr15° / 589.70.213.14.6
May19° / 13°558.5014.36.6
Jun24° / 17°578014.97.6
Jul26° / 20°396014.77.9
Aug26° / 21°476.1013.67.8
Sep24° / 17°678.3012.37.5
Oct20° / 14°9710.6010.96.2
Nov15° / 8510.30.59.74.4
Dec10° / 11313.92.79.12.2

Cloud cover in Winter

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time across winter.

0%25%50%75%100%DecJanFeb

Chance of precipitation in Winter

Any precipitationSnow

Karasu gets around 301 mm of rain and snow over 40 wet days across winter. The line is the day-by-day chance of measurable precipitation.

0%20%40%60%DecJanFeb

Humidity in Winter

DryComfortableHumidMuggyOppressiveMiserable

Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

0%25%50%75%100%DecJanFeb

Wind in Winter

Winds average 11 km/h across winter.

051015DecJanFeb

Sunrise & sunset in Winter

DaylightNight

Daylight runs from about 9 h 18 min in early December to 10 h 54 min by late February. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMDecJanFeb

Solar energy in Winter

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across winter, about 1.9 kWh/m².

01234DecJanFeb
Planning a trip in winter

Is winter a good time to visit Karasu?

Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

1.8
Sightseeing
4th-best month of the year
0.0
Beach & pool
4th-best month of the year

winter is a weaker month for outdoor sightseeing in Karasu.

What to pack for Karasu in Winter

From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In winter, Karasu sees daytime highs around 9°C and nights near 4°C. Pack a warm layer and rain gear. About 40 days see rain.

a warm layerrain gear

Sea temperature near Karasu in Winter

The nearest coast averages about 9°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 25°C and coldest in February near 7°C.

It's comfortable for a long swim from Jun 11 to Oct 11 — about 4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan9Bracing
Feb7Bracing
Mar8Bracing
Apr11Bracing
May16Cool
Jun21Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct20Cool
Nov15Cool
Dec11Bracing

UV index in Karasu in Winter

LowModerateHighVery highExtreme

Clear-sky midday UV across winter averages around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Karasu peaks around June 23 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 8Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr6High
May7High
Jun8Very high
Jul8Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Karasu in Winter

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.

Air quality in Karasu is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2015 µg/m³Dec 188 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar15Moderate
Apr14Moderate
May12Moderate
Jun10Good
Jul9Good
Aug9Good
Sep9Good
Oct9Good
Nov9Good
Dec8Good
Location & terrain

Where is Karasu?

Karasu sits at 41.1°N, 30.7°E, 6 m above sea level, in Turkey. The nearest listed city is Karasu Mahallesi, 8.0 km away.

Topography around Karasu

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Karasu.

Within 3 km, the terrain around Karasu has only modest variations in elevation — a maximum elevation change of 105 m around an average of 15 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 469 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,820 m.

The land around Karasu is covered by water (38%), trees (24%) and artificial surfaces (24%) within 3 km, water (49%) and trees (39%) within 16 km, and trees (52%) and water (33%) within 80 km.

3 km
105 m
16 km
469 m
80 km
1,820 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Winter weather nearby: Karasu Mahallesi 8.0 km · Kocaali 14 km · Ferizli 25 km · Hendek 34 km · Akçakoca 36 km · Adapazarı 44 km · Kandıra 46 km · Akyazı 47 km

Turkey travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$18,599
2025
Happiness
5.3 / 10
World Happiness, 2025
Homicide rate
3.2
per 100k, 2023
Road deaths
6.7
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 488
Religion
Muslim 100%other 0%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Karasu (41.1044°, 30.6966°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.