Menderes climate — normals and trends
Menderes (Republic of Türkiye) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.8 °C and it receives 835 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 (27.7 °C on average) and the coldest is January (7.0 °C). Rainfall peaks in December.
Menderes averages 17 frost days, 97 hot days (≥ 30 °C) and 82 rainy days per year.
Menderes has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 24 to 10 per year over the period.
The hottest day of the period reached 43.8 °C (on 24 August 1958) and the coldest -20.4 °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
Menderesİzmir Province
- coords
- 38.25°, 27.13°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.8°C
Average daily high
22.3°C
Average daily low
11.9°C
Annual rainfall
835mm
Sunshine / day
10.6h
Mean relative humidity
65%
Average peak wind
13.5km/h
Seasonal range
20.7°C
Frost days (< 0 °C)
17 d/yr
Hot days (≥ 30 °C)
97 d/yr
Rainy days (≥ 1 mm)
82 d/yr
Annual snowfall
4.1 cm
Average feels-like high
21.5 °C
Average feels-like low
10.7 °C
Average peak gust
37.0 km/h
Tropical nights (≥ 20 °C)
58 d/yr
Solar radiation
17.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.53 · 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
43.8 °C
24 August 1958
Coldest day
-20.4 °C
5 January 1942
Wettest day
92 mm
22 October 2007
Windiest day
36.1 km/h
3 April 1979
Strongest gust
100.8 km/h
26 February 1973
Hottest feels-like
45.1 °C
12 July 1999
Coldest feels-like
-25.9 °C
5 January 1942
Snowiest day
12.3 cm
24 January 1942
Sunniest day
14.2 h
28 June 1944
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 | 15.0 °C | +3.8 °C | 98 mm | -40 mm |
| Feb | 11.1 °C | -1.4 °C | 44 mm | -70 mm |
| Mar | 19.5 °C | +4.2 °C | 28 mm | -62 mm |
| Apr | 19.8 °C | -0.1 °C | 95 mm | +28 mm |
| May | 26.4 °C | +1.0 °C | 20 mm | -18 mm |
| Jun | 34.9 °C | +4.0 °C | 0 mm | -16 mm |
| Jul | 37.4 °C | +2.9 °C | 1 mm | -3 mm |
| Aug | 35.7 °C | +1.3 °C | 0 mm | -3 mm |
| Sep | 31.5 °C | +1.6 °C | 17 mm | -3 mm |
| Oct | 22.1 °C | -1.5 °C | 158 mm | +96 mm |
| Nov | 20.5 °C | +3.0 °C | 119 mm | -5 mm |
| Dec | 13.9 °C | +1.2 °C | 46 mm | -112 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 Menderes?
Menderes has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.8 °C and it receives 835 mm of precipitation per year.
What is the hottest day ever recorded in Menderes?
The hottest day measured in Menderes between 1940 and 2025 was 24 August 1958, reaching 43.8 °C.
What is the coldest day in Menderes?
The coldest day measured in Menderes between 1940 and 2025 was 5 January 1942, at -20.4 °C.
Does it snow in Menderes?
Yes. Menderes gets on average 4.1 cm of snow per year and has around 17 frost days.
Has the climate of Menderes warmed?
Yes: Menderes warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Menderes?
The wettest day measured in Menderes between 1940 and 2025 was 22 October 2007, with 92 mm of rain in 24 hours.
What was the windiest day in Menderes?
The windiest day measured in Menderes between 1940 and 2025 was 3 April 1979, with winds reaching 36.1 km/h.
What is the warmest month in Menderes?
The warmest month in Menderes is July (27.7 °C on average); the coldest is January (7.0 °C).
How much does it rain in Menderes?
Menderes receives on average 835 mm of precipitation per year, spread over about 82 rainy days.
Is it sunny in Menderes?
Menderes gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in Menderes?
The heaviest 24-hour snowfall measured in Menderes between 1940 and 2025 was 24 January 1942, with 12.3 cm.
Are there tropical nights in Menderes?
Yes: Menderes has on average 58 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Menderes?
In Menderes, between 1940 and 2025, the highest apparent temperature reached 45.1 °C on 12 July 1999, and the lowest was -25.9 °C on 5 January 1942.
Compare Menderes with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Menderes