Karasu Mahallesi weather in December

In December, Karasu Mahallesi sees average daytime highs of 10°C and overnight lows near 5°C, with 113 mm of precipitation across 13.9 wet days and about 9.1 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 12°C in the first days to 9°C by the end. The sky is clear or mostly clear about 23% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of December to 9 h 06 min by month's end. Set against the rest of the year, December is Karasu Mahallesi's 11th-clearest and 1st-windiest month. For the whole year in context, see Karasu Mahallesi's year-round climate.

Daytime high
10°
10th warmest
Overnight low
4th coldest
Precipitation
113 mm
13.9 wet days
Daylight
9 h 06 min
7:21 AM – 4:25 PM
Cloud cover
67%
11th clearest
Wind
11 km/h
1st windiest
Solar energy
1.49 kWh/m²
Travel score
2.2
out of 10

Karasu Mahallesi is mahalle (administrative quarter) in Karasu, Sakarya, northwestern Turkey.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 12°C in the first days to 9°C by the end.

A typical December day in Karasu Mahallesi reaches about 10°C in the afternoon and slips back to 5°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 15°C. Set against its neighbours, December runs about 5°C cooler than November and about 2°C warmer than January.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1127
2127
3127
4127
5127
6116
7116
8116
9116
10116
11116
12116
13105
14105
15105
16105
17105
18105
19105
20105
21105
22105
23105
24104
2594
2694
2794
2894
2994
3094
3194

How December really feels in Karasu Mahallesi

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Karasu Mahallesi weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
23961
33862
43862
53862
63763
73763
83763
93763
103664
113664
123664
133664
143664
153664
163664
173565
183565
193466
203565
213565
223565
233565
243565
253466
263466
273466
283466
293466
303466
313466

Chance of precipitation in December

Any precipitationSnow

Karasu Mahallesi gets around 113 mm of rain and snow over 13.9 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 45% and peaks near 47% on the wettest days, and about 3 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1423
2423
3433
4444
5444
6444
7455
8455
9456
10457
11457
12458
13468
14469
15469
164610
174610
184510
194511
204511
214511
224511
234511
244512
254612
264612
274612
284612
294613
304713
314713

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 11 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 18 min at the start of December to 9 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:09 AM to 7:28 AM, and sunset from 4:24 PM to 4:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.37:094:24
29.27:104:24
39.27:114:24
49.27:124:24
59.27:134:24
69.27:134:24
79.27:144:24
89.17:154:24
99.17:164:24
109.17:174:24
119.17:184:24
129.17:184:24
139.17:194:24
149.17:204:24
159.17:214:25
169.17:214:25
179.17:224:25
189.07:234:25
199.07:234:26
209.07:244:26
219.07:244:27
229.07:254:27
239.07:254:28
249.07:264:28
259.07:264:29
269.07:264:29
279.17:274:30
289.17:274:30
299.17:274:31
309.17:274:32
319.17:284:32

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.49 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.49 kWh/m² to a high of 6.68 kWh/m² in July across the year — December's 1.49 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.6Dim
21.6Dim
31.6Dim
41.6Dim
51.6Dim
61.6Dim
71.5Dim
81.5Dim
91.5Dim
101.5Dim
111.5Dim
121.5Dim
131.5Dim
141.5Dim
151.5Dim
161.5Dim
171.5Dim
181.5Dim
191.5Dim
201.5Dim
211.5Dim
221.5Dim
231.5Dim
241.5Dim
251.5Dim
261.5Dim
271.5Dim
281.5Dim
291.5Dim
301.5Dim
311.5Dim
Planning a trip in December

Is December a good time to visit Karasu Mahallesi?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.2
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Karasu Mahallesi.

What to pack for Karasu Mahallesi in December

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

In December, Karasu Mahallesi sees daytime highs around 10°C and nights near 5°C. Pack a warm layer and rain gear. About 14 days see rain.

a warm layerrain gear

Sea temperature near Karasu Mahallesi in December

The nearest coast averages about 11°C in December — 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 12 — about 4.1 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 Mahallesi in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Karasu Mahallesi 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 Mahallesi in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Karasu Mahallesi 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 Mahallesi?

Karasu Mahallesi sits at 41.1°N, 30.8°E, 12 m above sea level, in Turkey. The nearest listed city is Kocaali, 6.0 km away.

Topography around Karasu Mahallesi

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

Within 3 km, the terrain around Karasu Mahallesi has only modest variations in elevation — a maximum elevation change of 197 m around an average of 28 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 884 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,966 m.

The land around Karasu Mahallesi is covered by trees (57%) and water (23%) within 3 km, trees (51%) and water (41%) within 16 km, and trees (54%) and water (31%) within 80 km.

3 km
197 m
16 km
884 m
80 km
1,966 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Kocaali 6.0 km · Karasu 8.0 km · Akçakoca 28 km · Ferizli 29 km · Hendek 30 km · Düzce 41 km · Akyazı 45 km · Adapazarı 46 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 Mahallesi (41.071°, 30.7854°, elevation 12 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).