Zonguldak climate

Turkey · 41.45°N, 31.79°E · elevation 24 m · population 101,749

Warmest month
August
high 28 °C82 °F
Coldest month
January
low 4 °C39 °F
Wettest month
December
124 mm4.9 in
Best time to visit
May–September
by our comfort score
Annual precipitation
922 mm36 in
July driest
Year average
15 °C59 °F
humid subtropical (Cfa)

Zonguldak (Turkey) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 15 °C59 °F, and about 922 mm36 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
0°5°10°15°20°25°30°40°50°60°70°80°JFMAMJJASOND28°82°4°39°January: high 9 °C / 48 °F, low 4 °C / 39 °FFebruary: high 10 °C / 49 °F, low 4 °C / 40 °FMarch: high 12 °C / 53 °F, low 6 °C / 42 °FApril: high 15 °C / 60 °F, low 9 °C / 48 °FMay: high 20 °C / 68 °F, low 14 °C / 57 °FJune: high 24 °C / 76 °F, low 18 °C / 65 °FJuly: high 27 °C / 81 °F, low 21 °C / 70 °FAugust: high 28 °C / 82 °F, low 21 °C / 71 °FSeptember: high 25 °C / 76 °F, low 19 °C / 65 °FOctober: high 20 °C / 68 °F, low 14 °C / 58 °FNovember: high 15 °C / 60 °F, low 10 °C / 50 °FDecember: high 11 °C / 51 °F, low 6 °C / 43 °F

Precipitation by month

Precipitation per month (mminches)
025507510012501234JJanuary: 105 mm / 4.1 inFFebruary: 81 mm / 3.2 inMMarch: 78 mm / 3.1 inAApril: 50 mm / 2.0 inMMay: 52 mm / 2.1 inJJune: 60 mm / 2.4 inJJuly: 46 mm / 1.8 inAAugust: 48 mm / 1.9 inSSeptember: 84 mm / 3.3 inOOctober: 97 mm / 3.8 inNNovember: 96 mm / 3.8 inDDecember: 124 mm / 4.9 in1244.9

Zonguldak climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mminFrost days
Jan9484396431054.14
Feb1049440744813.24
Mar1253642948783.11
Apr15609481254502.00
May206814571762522.10
Jun247618652170602.40
Jul278121702475461.80
Aug288221712576481.90
Sep257619652271843.30
Oct206814581763973.80
Nov156010501355963.80
Dec11516438471244.91
Year288243915599223610

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan81%82%1.59:29
Feb80%79%2.210:33
Mar78%73%3.411:49
Apr77%67%4.913:16
May78%61%6.014:30
Jun76%45%7.015:09
Jul74%34%7.214:53
Aug74%36%6.313:49
Sep74%52%4.612:25
Oct77%65%3.011:00
Nov77%71%2.09:47
Dec79%79%1.49:11

Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.

What the climate of Zonguldak is like

The warmest month is August, with an average high of 28 °C82 °F and a low of 21 °C71 °F. The coldest is January, when highs average 9 °C48 °F and lows 4 °C39 °F. Seasons are strongly marked: the warmest month is on average 18.2 °C32.8 °F warmer than the coldest.

Annual precipitation is moderate at about 922 mm36 in. The wettest three-month stretch is November–January, which brings 35% of the annual total. The wettest month is December (124 mm4.9 in), the driest is July (46 mm1.8 in).

Relative humidity ranges from 74% in August to 81% in January. The clearest skies (lowest average cloud amount, 34%) are typical of July. Average wind speed near the ground ranges from 5 km/h (3 mph) in May to 8 km/h (5 mph) in January. Daylight lasts from about 9.2 hours in December to 15.2 hours in June.

Best time to visit Zonguldak

Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–September. Average highs then reach 20 °C68 °F to 28 °C82 °F. Precipitation is 46 mm1.8 in to 84 mm3.3 in per month.

The most challenging month is January, which is cold, with average highs of 9 °C48 °F.

Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.

What to pack for Zonguldak

  • Winter (December–February) — highs 948 to 11 °C51 °F, lows 439 to 6 °C43 °F, about 103 mm4.1 in of precipitation a month. Pack a warm coat, layers and closed shoes and an umbrella or light rain jacket.
  • Spring (March–May) — highs 1253 to 20 °C68 °F, lows 642 to 14 °C57 °F, about 60 mm2.4 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
  • Summer (June–August) — highs 2476 to 28 °C82 °F, lows 1865 to 21 °C71 °F, about 51 mm2.0 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
  • Autumn (September–November) — highs 1560 to 25 °C76 °F, lows 1050 to 19 °C65 °F, about 92 mm3.6 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.

How Zonguldak compares

The nearest larger place is Karabük, about 75 km to the east. Compared with it, Zonguldak is on average 0.6 °C1 °F warmer. It receives 35% more precipitation (922 mm36 in vs 682 mm27 in). The difference is largest in December (3.2 °C5.8 °F warmer).

World Climates covers 87 places in Turkey. By annual mean temperature, Zonguldak is the 46th warmest of them. By annual precipitation, it is the 5th wettest. See all of them on the Turkey climate page.

Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Novorossiysk (Russia, Cfa), Trieste (Italy, Cfa) and Genoa (Italy, Csa).

Nearby places

All places in Turkey

Frequently asked questions

What is the warmest month in Zonguldak?

August is the warmest month in Zonguldak. Its average high is 28 °C (82 °F) and its average low is 21 °C (71 °F).

What is the coldest month in Zonguldak?

January is the coldest month. Its average high is 9 °C (48 °F) and its average low is 4 °C (39 °F).

When does it rain the most in Zonguldak?

December is the wettest month with about 124 mm (4.9 in) of precipitation. July is the driest with about 46 mm (1.8 in).

What is the best time to visit Zonguldak?

Judging by long-term averages, the most comfortable months are May–September.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

The grid cell’s average elevation is 161 m, while Zonguldak lies at about 24 m. Temperatures on this page were therefore adjusted by +0.9 °C1.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method