Çay climate — normals and trends
Çay (Republic of Türkiye) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 11.2 °C and it receives 406 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 July (22.2 °C on average) and the coldest is January (0.0 °C). Rainfall peaks in March.
Çay averages 81 frost days, 28 hot days (≥ 30 °C) and 79 rainy days per year.
Çay has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 98 to 64 per year over the period.
The hottest day of the period reached 38.3 °C (on 26 July 2012) and the coldest -26.0 °C (on 5 January 1942).
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
ÇayAfyonkarahisar Province
- coords
- 38.59°, 31.03°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.2°C
Average daily high
16.6°C
Average daily low
6.0°C
Annual rainfall
406mm
Sunshine / day
10.2h
Mean relative humidity
64%
Average peak wind
11.2km/h
Seasonal range
22.2°C
Frost days (< 0 °C)
81 d/yr
Hot days (≥ 30 °C)
28 d/yr
Rainy days (≥ 1 mm)
79 d/yr
Annual snowfall
65.9 cm
Average feels-like high
14.6 °C
Average feels-like low
3.8 °C
Average peak gust
32.0 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
17.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.49 · 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
38.3 °C
26 July 2012
Coldest day
-26.0 °C
5 January 1942
Wettest day
47 mm
28 September 2014
Windiest day
38.6 km/h
18 April 2012
Strongest gust
106.6 km/h
18 April 2012
Hottest feels-like
39.3 °C
26 July 2012
Coldest feels-like
-30.6 °C
5 January 1942
Snowiest day
22.6 cm
15 January 1979
Sunniest day
14.0 h
20 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 9.1 °C | +5.2 °C | 33 mm | -17 mm |
| Feb | 4.6 °C | -1.2 °C | 28 mm | -16 mm |
| Mar | 15.3 °C | +5.4 °C | 17 mm | -36 mm |
| Apr | 14.8 °C | -0.6 °C | 81 mm | +30 mm |
| May | 21.7 °C | +1.3 °C | 62 mm | +18 mm |
| Jun | 26.8 °C | +1.9 °C | 10 mm | -16 mm |
| Jul | 32.4 °C | +3.7 °C | 3 mm | -5 mm |
| Aug | 31.3 °C | +2.4 °C | 1 mm | -5 mm |
| Sep | 25.6 °C | +0.9 °C | 9 mm | -4 mm |
| Oct | 18.2 °C | -0.4 °C | 50 mm | +24 mm |
| Nov | 16.1 °C | +3.9 °C | 13 mm | -23 mm |
| Dec | 7.6 °C | +1.5 °C | 40 mm | -10 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 Çay?
Çay has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 11.2 °C and it receives 406 mm of precipitation per year.
What is the hottest day ever recorded in Çay?
The hottest day measured in Çay between 1940 and 2025 was 26 July 2012, reaching 38.3 °C.
What is the coldest day in Çay?
The coldest day measured in Çay between 1940 and 2025 was 5 January 1942, at -26.0 °C.
Does it snow in Çay?
Yes. Çay gets on average 65.9 cm of snow per year and has around 81 frost days.
Has the climate of Çay warmed?
Yes: Çay warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Çay?
The wettest day measured in Çay between 1940 and 2025 was 28 September 2014, with 47 mm of rain in 24 hours.
What was the windiest day in Çay?
The windiest day measured in Çay between 1940 and 2025 was 18 April 2012, with winds reaching 38.6 km/h.
What is the warmest month in Çay?
The warmest month in Çay is July (22.2 °C on average); the coldest is January (0.0 °C).
How much does it rain in Çay?
Çay receives on average 406 mm of precipitation per year, spread over about 79 rainy days.
Is it sunny in Çay?
Çay gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
What is the biggest single-day snowfall in Çay?
The heaviest 24-hour snowfall measured in Çay between 1940 and 2025 was 15 January 1979, with 22.6 cm.
Are there tropical nights in Çay?
Yes: Çay has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Çay?
In Çay, between 1940 and 2025, the highest apparent temperature reached 39.3 °C on 26 July 2012, and the lowest was -30.6 °C on 5 January 1942.
Compare Çay with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Çay