Gönen in Winter
In winter (December, January and February), Gönen sees average daytime highs around 10°C and overnight lows near 3°C, with 265 mm of precipitation over about 35 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 10°C. The sky is clear or mostly clear about 23% of the time across winter, and the air most often feels dry.
Winter is Gönen's weakest season of the year to visit on our travel score. For the whole year in context, see Gönen's year-round climate.
- Avg daytime high
- 10°C
- coldest season of the year
- Avg overnight low
- 3°C
- Precipitation
- 265 mm
- 35 wet days
- Avg wind
- 11 km/h
- Travel score
- 2.2
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Gönen in Winter
Across winter, daytime highs hold fairly steady around 10°C.
A typical winter day in Gönen reaches about 10°C and drops to 3°C overnight. The warmest of the three months is December, the coolest January.
How winter really feels in Gönen
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 55 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Gönen 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.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 9° / 2° | 88 | 11.9 | 3.6 | 9.5 | 1.8 |
| Feb | 11° / 3° | 81 | 11.3 | 3.4 | 10.4 | 2.3 |
| Mar | 14° / 4° | 77 | 11.2 | 1.4 | 11.7 | 3.7 |
| Apr | 18° / 8° | 56 | 8.8 | 0.1 | 13 | 6.0 |
| May | 23° / 12° | 50 | 7.7 | 0 | 14.2 | 7.4 |
| Jun | 28° / 16° | 39 | 6.7 | 0 | 14.8 | 7.1 |
| Jul | 30° / 19° | 17 | 3.1 | 0 | 14.6 | 6.5 |
| Aug | 30° / 20° | 12 | 3 | 0 | 13.6 | 6.5 |
| Sep | 26° / 16° | 34 | 4.9 | 0 | 12.3 | 7.9 |
| Oct | 21° / 12° | 66 | 8 | 0 | 10.9 | 7.0 |
| Nov | 16° / 7° | 65 | 8 | 0.2 | 9.8 | 5.0 |
| Dec | 11° / 4° | 97 | 12.2 | 2.5 | 9.2 | 2.4 |
Cloud cover in Winter
The sky is clear or mostly clear about 23% of the time across winter.
Chance of precipitation in Winter
Gönen gets around 265 mm of rain and snow over 35 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 11 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 24 min in early December to 11 hours by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 2.0 kWh/m².
Hazard calendar for Gönen
In winter, Gönen overlaps 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.
Is winter a good time to visit Gönen?
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.
winter is a weaker month for outdoor sightseeing in Gönen.
What to pack for Gönen in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Gönen sees daytime highs around 10°C and nights near 3°C. Pack a warm layer. Worth having: rain gear. About 35 days see rain.
Sea temperature near Gönen in Winter
The nearest coast averages about 10°C across winter — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 9 | 9 | 10 | 12 | 17 | 22 | 24 | 25 | 23 | 19 | 15 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 9 | Bracing |
| Feb | 9 | Bracing |
| Mar | 10 | Bracing |
| Apr | 12 | Bracing |
| May | 17 | Cool |
| Jun | 22 | Refreshing |
| Jul | 24 | Warm |
| Aug | 25 | Warm |
| Sep | 23 | Refreshing |
| Oct | 19 | Cool |
| Nov | 15 | Cool |
| Dec | 12 | Bracing |
UV index in Gönen in Winter
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 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 4 | 8 | 7 | 9 | 9 | 9 | 7 | 4 | 2 | 2 |
| Level | Low | Moderate | Moderate | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 8 | Very high |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Gönen in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 14 | 17 | 17 | 17 | 13 | 10 | 11 | 11 | 11 | 12 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 14 | Moderate |
| Mar | 17 | Moderate |
| Apr | 17 | Moderate |
| May | 17 | Moderate |
| Jun | 13 | Moderate |
| Jul | 10 | Good |
| Aug | 11 | Good |
| Sep | 11 | Good |
| Oct | 11 | Good |
| Nov | 12 | Moderate |
| Dec | 10 | Good |
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.
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
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.