Gönen weather in December

In December, Gönen sees average daytime highs of 11°C and overnight lows near 4°C, with 97 mm of precipitation across 12.2 wet days and about 9.2 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 10°C by the end. The sky is clear or mostly clear about 22% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of December to 9 h 12 min by month's end. Set against the rest of the year, December is Gönen's 12th-clearest and 5th-windiest month. For the whole year in context, see Gönen's year-round climate.

Daytime high
11°
10th warmest
Overnight low
3rd coldest
Precipitation
97 mm
12.2 wet days
Daylight
9 h 12 min
7:31 AM – 4:40 PM
Cloud cover
68%
12th clearest
Wind
11 km/h
5th windiest
Solar energy
1.52 kWh/m²
Travel score
2.4
out of 10

Gönen is district of Balıkesir, 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 10°C by the end.

A typical December day in Gönen reaches about 11°C in the afternoon and slips back to 4°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 17°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)
1135
2135
3125
4125
5125
6125
7124
8114
9114
10114
11114
12114
13114
14114
15104
16103
17103
18103
19103
20103
21103
22103
23103
24103
25103
26103
27103
28103
29103
30103
31103

How December really feels in Gönen

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 3 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
3
wind chill below the day's low

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

Gönen 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 / 8811.93.69.51.8
Feb11° / 8111.33.410.42.3
Mar14° / 7711.21.411.73.7
Apr18° / 568.80.1136.0
May23° / 12°507.7014.27.4
Jun28° / 16°396.7014.87.1
Jul30° / 19°173.1014.66.5
Aug30° / 20°123013.66.5
Sep26° / 16°344.9012.37.9
Oct21° / 12°668010.97.0
Nov16° / 6580.29.85.0
Dec11° / 9712.22.59.22.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23862
33862
43862
53763
63763
73664
83664
93664
103664
113664
123664
133664
143664
153466
163466
173466
183466
193466
203367
213367
223367
233367
243367
253268
263268
273268
283169
293169
303169
313268

Chance of precipitation in December

Any precipitationSnow

Gönen gets around 97 mm of rain and snow over 12.2 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 40% and peaks near 42% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1362
2372
3373
4383
5394
6394
7405
8406
9406
10417
11417
12428
13428
14428
15429
16429
17419
18419
19409
20409
21409
22399
23399
24399
253910
263910
273910
284011
294011
304012
314012

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.

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
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 24 min at the start of December to 9 h 12 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 7:18 AM to 7:37 AM, and sunset from 4:40 PM to 4:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.47:184:40
29.37:194:40
39.37:204:40
49.37:214:39
59.37:224:39
69.37:234:39
79.37:244:39
89.27:254:39
99.27:264:39
109.27:264:39
119.27:274:39
129.27:284:40
139.27:294:40
149.27:294:40
159.27:304:40
169.27:314:40
179.27:314:41
189.27:324:41
199.17:324:41
209.17:334:42
219.17:344:42
229.17:344:43
239.17:344:43
249.17:354:44
259.17:354:44
269.27:364:45
279.27:364:45
289.27:364:46
299.27:374:47
309.27:374:47
319.27:374:48

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.52 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.52 kWh/m² to a high of 7.14 kWh/m² in July across the year — December's 1.52 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.6Dim
31.6Dim
41.6Dim
51.6Dim
61.6Dim
71.6Dim
81.6Dim
91.6Dim
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

Hazard calendar for Gönen

In seasonPeak

In December, Gönen sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Gönen's rainy season runs October–May, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Gönen?

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

2.4
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Gönen.

What to pack for Gönen in December

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

In December, Gönen sees daytime highs around 11°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 12 days see rain.

a warm layerrain gear

Sea temperature near Gönen in December

The nearest coast averages about 12°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 30 km away) is warmest in August at about 25°C and coldest in February near 9°C.

It's comfortable for a long swim from Jun 4 to Oct 9 — about 4.2 months when the water holds above 20°C.

10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan9Bracing
Feb9Bracing
Mar10Bracing
Apr12Bracing
May17Cool
Jun22Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Cool
Dec12Bracing

UV index in Gönen in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gönen peaks around August 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highModerateLowAug 10UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr8Very high
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Gönen 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 Gönen is worst in March — around 17 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (July, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2317 µg/m³Jul 2010 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb14Moderate
Mar17Moderate
Apr17Moderate
May17Moderate
Jun13Moderate
Jul10Good
Aug11Good
Sep11Good
Oct11Good
Nov12Moderate
Dec10Good
Location & terrain

Where is Gönen?

Gönen sits at 40.1°N, 27.7°E, 40 m above sea level, in Turkey. The nearest listed city is Erdek, 35 km away.

Topography around Gönen

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

Within 3 km, the terrain around Gönen has only modest variations in elevation — a maximum elevation change of 75 m around an average of 43 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 896 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,813 m.

The land around Gönen is covered by cropland (57%) within 3 km, trees (48%) and cropland (33%) within 16 km, and trees (42%), water (24%) and cropland (21%) within 80 km.

3 km
75 m
16 km
896 m
80 km
1,813 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Erdek 35 km · Biga 38 km · Bandırma 39 km · Susurluk 48 km · Çan 52 km · Balıkesir 54 km · Karacabey 61 km · Mustafakemalpaşa 65 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 Gönen (40.1049°, 27.654°, elevation 40 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).