Adapazarı climate — normals and trends
Adapazarı (Republic of Türkiye) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 12.5 °C and it receives 912 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (21.7 °C on average) and the coldest is January (2.9 °C). Rainfall peaks in December.
Adapazarı averages 48 frost days, 11 hot days (≥ 30 °C) and 130 rainy days per year.
Adapazarı has warmed by +2.6 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 66 to 30 per year over the period.
The hottest day of the period reached 40.7 °C (on 13 July 2000) and the coldest -20.0 °C (on 6 February 1960).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
AdapazarıSakarya
- coords
- 40.78°, 30.40°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.5°C
Average daily high
17.3°C
Average daily low
8.2°C
Annual rainfall
912mm
Sunshine / day
9.4h
Mean relative humidity
81%
Average peak wind
10.4km/h
Seasonal range
18.8°C
Frost days (< 0 °C)
48 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
130 d/yr
Annual snowfall
92.8 cm
Average feels-like high
17.1 °C
Average feels-like low
7.0 °C
Average peak gust
30.2 km/h
Tropical nights (≥ 20 °C)
6 d/yr
Solar radiation
14.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.60 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.7 °C
13 July 2000
Coldest day
-20.0 °C
6 February 1960
Wettest day
100 mm
10 September 1981
Windiest day
31.3 km/h
9 October 2003
Strongest gust
98.6 km/h
26 February 1973
Hottest feels-like
43.4 °C
13 July 2000
Coldest feels-like
-25.3 °C
6 February 1960
Snowiest day
24.3 cm
19 February 1999
Sunniest day
14.0 h
21 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 11.9 °C | +5.0 °C | 69 mm | -30 mm |
| Feb | 6.7 °C | -1.7 °C | 98 mm | +7 mm |
| Mar | 17.3 °C | +5.9 °C | 51 mm | -44 mm |
| Apr | 14.9 °C | -1.4 °C | 77 mm | -3 mm |
| May | 21.8 °C | +1.2 °C | 58 mm | -13 mm |
| Jun | 26.4 °C | +2.0 °C | 15 mm | -51 mm |
| Jul | 30.5 °C | +4.1 °C | 3 mm | -41 mm |
| Aug | 28.9 °C | +2.0 °C | 20 mm | -24 mm |
| Sep | 25.1 °C | +1.4 °C | 51 mm | -5 mm |
| Oct | 20.0 °C | +0.9 °C | 138 mm | +61 mm |
| Nov | 18.8 °C | +4.5 °C | 55 mm | -29 mm |
| Dec | 10.6 °C | +1.5 °C | 118 mm | +12 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Adapazarı?
Adapazarı has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 12.5 °C and it receives 912 mm of precipitation per year.
What is the hottest day ever recorded in Adapazarı?
The hottest day measured in Adapazarı between 1940 and 2025 was 13 July 2000, reaching 40.7 °C.
What is the coldest day in Adapazarı?
The coldest day measured in Adapazarı between 1940 and 2025 was 6 February 1960, at -20.0 °C.
Does it snow in Adapazarı?
Yes. Adapazarı gets on average 92.8 cm of snow per year and has around 48 frost days.
Has the climate of Adapazarı warmed?
Yes: Adapazarı warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Adapazarı?
The wettest day measured in Adapazarı between 1940 and 2025 was 10 September 1981, with 100 mm of rain in 24 hours.
What was the windiest day in Adapazarı?
The windiest day measured in Adapazarı between 1940 and 2025 was 9 October 2003, with winds reaching 31.3 km/h.
What is the warmest month in Adapazarı?
The warmest month in Adapazarı is August (21.7 °C on average); the coldest is January (2.9 °C).
How much does it rain in Adapazarı?
Adapazarı receives on average 912 mm of precipitation per year, spread over about 130 rainy days.
Is it sunny in Adapazarı?
Adapazarı gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
What is the biggest single-day snowfall in Adapazarı?
The heaviest 24-hour snowfall measured in Adapazarı between 1940 and 2025 was 19 February 1999, with 24.3 cm.
Are there tropical nights in Adapazarı?
Yes: Adapazarı has on average 6 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Adapazarı?
In Adapazarı, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 13 July 2000, and the lowest was -25.3 °C on 6 February 1960.
Compare Adapazarı with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Adapazarı