Çayeli climate — normals and trends
Çayeli (Republic of Türkiye) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.2 °C and it receives 2,279 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 (18.7 °C on average) and the coldest is January (1.5 °C). Rainfall peaks in September.
Çayeli averages 61 frost days, 0 hot days (≥ 30 °C) and 220 rainy days per year.
Çayeli has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 75 to 47 per year over the period.
The hottest day of the period reached 32.1 °C (on 18 August 1961) and the coldest -13.7 °C (on 10 February 2020).
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
ÇayeliRize Province
- coords
- 41.09°, 40.72°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.2°C
Average daily high
13.2°C
Average daily low
7.5°C
Annual rainfall
2,279mm
Sunshine / day
8.9h
Mean relative humidity
80%
Average peak wind
10.7km/h
Seasonal range
17.2°C
Frost days (< 0 °C)
61 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
220 d/yr
Annual snowfall
296.4 cm
Average feels-like high
12.7 °C
Average feels-like low
5.6 °C
Average peak gust
29.1 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
13.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.40 · 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
32.1 °C
18 August 1961
Coldest day
-13.7 °C
10 February 2020
Wettest day
190 mm
15 July 2002
Windiest day
92.3 km/h
27 January 2001
Strongest gust
121.7 km/h
12 March 1968
Hottest feels-like
38.6 °C
30 July 2000
Coldest feels-like
-22.3 °C
27 January 2001
Snowiest day
33.7 cm
21 December 2021
Sunniest day
14.7 h
30 June 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 | 8.0 °C | +3.5 °C | 127 mm | -28 mm |
| Feb | 2.4 °C | -2.6 °C | 179 mm | +40 mm |
| Mar | 12.1 °C | +5.0 °C | 100 mm | -48 mm |
| Apr | 11.8 °C | -0.2 °C | 202 mm | +68 mm |
| May | 17.6 °C | +1.5 °C | 180 mm | +1 mm |
| Jun | 18.5 °C | -0.5 °C | 155 mm | -47 mm |
| Jul | 22.5 °C | +1.8 °C | 155 mm | -60 mm |
| Aug | 22.5 °C | +1.3 °C | 165 mm | -86 mm |
| Sep | 18.8 °C | -0.2 °C | 294 mm | +35 mm |
| Oct | 16.7 °C | +0.9 °C | 240 mm | -10 mm |
| Nov | 16.4 °C | +4.8 °C | 48 mm | -136 mm |
| Dec | 7.8 °C | +0.9 °C | 223 mm | +60 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 Çayeli?
Çayeli has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.2 °C and it receives 2,279 mm of precipitation per year.
What is the hottest day ever recorded in Çayeli?
The hottest day measured in Çayeli between 1940 and 2025 was 18 August 1961, reaching 32.1 °C.
What is the coldest day in Çayeli?
The coldest day measured in Çayeli between 1940 and 2025 was 10 February 2020, at -13.7 °C.
Does it snow in Çayeli?
Yes. Çayeli gets on average 296.4 cm of snow per year and has around 61 frost days.
Has the climate of Çayeli warmed?
Yes: Çayeli warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Çayeli?
The wettest day measured in Çayeli between 1940 and 2025 was 15 July 2002, with 190 mm of rain in 24 hours.
What was the windiest day in Çayeli?
The windiest day measured in Çayeli between 1940 and 2025 was 27 January 2001, with winds reaching 92.3 km/h.
What is the warmest month in Çayeli?
The warmest month in Çayeli is August (18.7 °C on average); the coldest is January (1.5 °C).
How much does it rain in Çayeli?
Çayeli receives on average 2,279 mm of precipitation per year, spread over about 220 rainy days.
Is it sunny in Çayeli?
Çayeli gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Çayeli?
The heaviest 24-hour snowfall measured in Çayeli between 1940 and 2025 was 21 December 2021, with 33.7 cm.
Are there tropical nights in Çayeli?
Yes: Çayeli has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Çayeli?
In Çayeli, between 1940 and 2025, the highest apparent temperature reached 38.6 °C on 30 July 2000, and the lowest was -22.3 °C on 27 January 2001.
Compare Çayeli with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Çayeli