Düzce climate
Düzce (Turkey) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 15 °C58 °F, and about 753 mm30 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Düzce climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 847 | 235 | 541 | 843.3 |
| Feb | 1051 | 236 | 643 | 672.6 |
| Mar | 1456 | 440 | 948 | 682.7 |
| Apr | 1864 | 846 | 1355 | 491.9 |
| May | 2272 | 1355 | 1864 | 582.3 |
| Jun | 2679 | 1762 | 2171 | 662.6 |
| Jul | 2984 | 1966 | 2475 | 361.4 |
| Aug | 2985 | 1966 | 2476 | 371.5 |
| Sep | 2678 | 1661 | 2170 | 582.3 |
| Oct | 2169 | 1254 | 1661 | 732.9 |
| Nov | 1660 | 846 | 1253 | 672.6 |
| Dec | 1051 | 338 | 744 | 913.6 |
| Year | 2985 | 235 | 1558 | 75330 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 83% | 80% | 1.7 | 9:33 |
| Feb | 79% | 75% | 2.6 | 10:35 |
| Mar | 75% | 71% | 3.7 | 11:49 |
| Apr | 72% | 65% | 4.9 | 13:15 |
| May | 73% | 60% | 5.9 | 14:27 |
| Jun | 72% | 48% | 6.7 | 15:05 |
| Jul | 70% | 35% | 7.1 | 14:49 |
| Aug | 71% | 33% | 6.4 | 13:47 |
| Sep | 72% | 43% | 4.9 | 12:24 |
| Oct | 75% | 55% | 3.3 | 11:02 |
| Nov | 76% | 60% | 2.3 | 9:50 |
| Dec | 81% | 75% | 1.6 | 9:15 |
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 Düzce is like
The warmest month is August, with an average high of 29 °C85 °F and a low of 19 °C66 °F. The coldest is January, when highs average 8 °C47 °F and lows 2 °C35 °F. Seasons are strongly marked: the warmest month is on average 19.2 °C34.6 °F warmer than the coldest.
Annual precipitation is moderate at about 753 mm30 in. The wettest three-month stretch is December–February, which brings 32% of the annual total. The wettest month is December (91 mm3.6 in), the driest is July (36 mm1.4 in).
Relative humidity ranges from 70% in July to 83% in January. The clearest skies (lowest average cloud amount, 33%) are typical of August. Average wind speed near the ground ranges from 3 km/h (2 mph) in May to 5 km/h (3 mph) in February. Daylight lasts from about 9.3 hours in December to 15.1 hours in June.
A lasting snow cover is typical in January and February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 12 cm).
Best time to visit Düzce
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–October: average highs of 21 °C69 °F to 29 °C85 °F with 36 mm1.4 in to 73 mm2.9 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 8 °C47 °F.
Comfort score: months are ranked by how close they come to 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 Düzce
- Winter (December–February) — highs 847 to 10 °C51 °F, lows 235 to 3 °C38 °F, about 81 mm3.2 in of precipitation a month. Pack a warm coat, layers and closed shoes.
- Spring (March–May) — highs 1456 to 22 °C72 °F, lows 440 to 13 °C55 °F, about 58 mm2.3 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
- Summer (June–August) — highs 2679 to 29 °C85 °F, lows 1762 to 19 °C66 °F, about 46 mm1.8 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
- Autumn (September–November) — highs 1660 to 26 °C78 °F, lows 846 to 16 °C61 °F, about 66 mm2.6 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
How Düzce compares
Compared with Adapazarı, about 64 km to the west, Düzce is on average 0.4 °C0.7 °F cooler and receives a similar amount of precipitation. The difference is largest in January (0.8 °C1.4 °F cooler).
Of the 87 places in Turkey covered by World Climates, Düzce is the 53rd warmest by annual mean temperature and the 8th wettest by annual precipitation. See all of them on the Turkey climate page.
Places in other countries with the most similar temperature and rainfall pattern: Novorossiysk (Russia, Cfa), Toulouse (France, Cfa) and Florence (Italy, Cfa).
Nearby places
- Bolu 39 km · 12 °C54 °F · 561 mm22 in
- Adapazarı 64 km · 15 °C59 °F · 725 mm29 in
- Zonguldak 86 km · 15 °C59 °F · 922 mm36 in
- İzmit 104 km · 15 °C58 °F · 734 mm29 in
- Karabük 129 km · 15 °C58 °F · 682 mm27 in
- Eskişehir 130 km · 12 °C54 °F · 497 mm20 in
- İnegol 163 km · 15 °C59 °F · 610 mm24 in
- Maltepe 169 km · 14 °C58 °F · 673 mm26 in
Frequently asked questions
What is the warmest month in Düzce?
August is the warmest month in Düzce, with an average high of 29 °C (85 °F) and an average low of 19 °C (66 °F).
What is the coldest month in Düzce?
January is the coldest month, with an average high of 8 °C (47 °F) and an average low of 2 °C (35 °F).
When does it rain the most in Düzce?
December is the wettest month with about 91 mm (3.6 in) of precipitation; July is the driest with about 36 mm (1.4 in).
What is the best time to visit Düzce?
Judging by long-term averages, the most comfortable months are May–October.
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 — most of all 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 435 m, while Düzce lies at about 153 m. Temperatures on this page were therefore adjusted by +1.8 °C3.3 °F using the standard lapse rate of 6.5 °C per 1,000 m.