Gönen in Summer
In summer (June, July and August), Gönen sees average daytime highs around 29°C and overnight lows near 18°C, with 68 mm of rain over about 13 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 26°C in early June to 29°C by late August. The sky is clear or mostly clear about 78% of the time across summer, and the air most often feels humid.
Summer is Gönen's best 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
- 29°C
- warmest season of the year
- Avg overnight low
- 18°C
- Rainfall
- 68 mm
- 13 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.7
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Gönen in Summer
Over the season highs climb from about 26°C in early June to 29°C by late August.
A typical summer day in Gönen reaches about 29°C and drops to 18°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Gönen
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Gönen weather by month
How the three summer months (June, July and August) 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 Summer
The sky is clear or mostly clear about 78% of the time across summer.
Chance of precipitation in Summer
Gönen gets around 68 mm of rain over 13 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 36 min in early June to 13 hours by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.8 kWh/m².
Hazard calendar for Gönen
None of Gönen's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Gönen's rainy season runs October–May, when most of the year's rain falls.
Is summer a good time to visit Gönen?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Gönen for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Gönen in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Gönen sees daytime highs around 29°C and nights near 18°C. Pack light clothes and sun protection. About 13 days see rain.
Sea temperature near Gönen in Summer
The nearest coast averages about 24°C across summer — 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 Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). 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 Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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.