Zonguldak in Summer
In summer (June, July and August), Zonguldak sees average daytime highs around 24°C and overnight lows near 20°C, with 142 mm of rain over about 18 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 20°C in early June to 24°C by late August. The sky is clear or mostly clear about 78% of the time across summer, and the air most often feels muggy.
Summer is Zonguldak's best season of the year to visit on our travel score. For the whole year in context, see Zonguldak's year-round climate.
- Avg daytime high
- 24°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 142 mm
- 18 wet days
- Avg wind
- 12 km/h
- Travel score
- 8.1
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Zonguldak in Summer
Over the season highs climb from about 20°C in early June to 24°C by late August.
A typical summer day in Zonguldak reaches about 24°C and drops to 20°C overnight. The warmest of the three months is August, the coolest June.
Zonguldak 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 | 8° / 5° | 96 | 14 | 3.9 | 9.3 | 1.1 |
| Feb | 8° / 4° | 76 | 12.3 | 3.3 | 10.3 | 1.2 |
| Mar | 10° / 6° | 77 | 12.3 | 1.6 | 11.7 | 1.9 |
| Apr | 13° / 9° | 47 | 8.8 | 0.1 | 13.1 | 3.7 |
| May | 17° / 14° | 43 | 6.8 | 0 | 14.3 | 6.2 |
| Jun | 22° / 18° | 50 | 6.6 | 0 | 14.9 | 7.7 |
| Jul | 25° / 21° | 42 | 5.7 | 0 | 14.7 | 8.4 |
| Aug | 25° / 21° | 50 | 5.9 | 0 | 13.7 | 8.3 |
| Sep | 22° / 19° | 82 | 8.1 | 0 | 12.3 | 7.5 |
| Oct | 18° / 15° | 101 | 10.1 | 0 | 10.9 | 6.1 |
| Nov | 14° / 10° | 90 | 10.5 | 0.2 | 9.7 | 4.0 |
| Dec | 10° / 7° | 107 | 13.7 | 1.8 | 9.1 | 2.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 78% of the time across summer.
Chance of precipitation in Summer
Zonguldak gets around 142 mm of rain over 18 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — 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 48 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 6.5 kWh/m².
Is summer a good time to visit Zonguldak?
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 one of the better times to visit Zonguldak for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Zonguldak in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Zonguldak sees daytime highs around 24°C and nights near 20°C. Pack sun protection. Worth having: light clothes. About 18 days see rain.
Sea temperature near Zonguldak in Summer
The nearest coast averages about 23°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 16 km away) is warmest in August at about 25°C and coldest in February near 8°C.
It's comfortable for a long swim from Jun 12 to Oct 11 — about 4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 9 | 8 | 8 | 11 | 16 | 21 | 24 | 25 | 23 | 20 | 15 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Warm | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 9 | Bracing |
| Feb | 8 | Bracing |
| Mar | 8 | Bracing |
| Apr | 11 | Bracing |
| May | 16 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Refreshing |
| Aug | 25 | Warm |
| Sep | 23 | Refreshing |
| Oct | 20 | Cool |
| Nov | 15 | Cool |
| Dec | 12 | Bracing |
UV index in Zonguldak in Summer
Clear-sky midday UV across summer averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Zonguldak peaks around June 23 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (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 | 2 | 3 | 6 | 6 | 8 | 8 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Moderate |
| Mar | 3 | Moderate |
| Apr | 6 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Zonguldak 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 Zonguldak is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 8 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) | 9 | 10 | 15 | 14 | 13 | 11 | 9 | 9 | 9 | 10 | 10 | 8 |
| Level | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 10 | Good |
| Mar | 15 | Moderate |
| Apr | 14 | Moderate |
| May | 13 | Moderate |
| Jun | 11 | Good |
| Jul | 9 | Good |
| Aug | 9 | Good |
| Sep | 9 | Good |
| Oct | 10 | Good |
| Nov | 10 | Good |
| Dec | 8 | Good |
Where is Zonguldak?
Zonguldak sits at 41.5°N, 31.8°E, 24 m above sea level, in Turkey. The nearest listed city is Çaycuma, 24 km away.
Topography around Zonguldak
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Zonguldak.
Within 3 km, the terrain around Zonguldak has significant variations in elevation — a maximum elevation change of 423 m around an average of 97 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 923 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,992 m.
The land around Zonguldak is covered by trees (55%), water (24%) and artificial surfaces (20%) within 3 km, trees (49%) and water (44%) within 16 km, and trees (58%) and water (34%) 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 Zonguldak (41.4514°, 31.7931°, elevation 24 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.