Arrianá climate — normals and trends
Arrianá (Greece) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 14.1 °C and it receives 767 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 (24.9 °C on average) and the coldest is January (3.9 °C). Rainfall peaks in December.
Arrianá averages 34 frost days, 41 hot days (≥ 30 °C) and 99 rainy days per year.
Arrianá has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 44 to 24 per year over the period.
The hottest day of the period reached 39.4 °C (on 24 July 2007) and the coldest -15.4 °C (on 25 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
ArrianáEast Macedonia and Thrace
- coords
- 41.08°, 25.69°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.1°C
Average daily high
18.3°C
Average daily low
10.3°C
Annual rainfall
767mm
Sunshine / day
9.9h
Mean relative humidity
69%
Average peak wind
17.0km/h
Seasonal range
21.0°C
Frost days (< 0 °C)
34 d/yr
Hot days (≥ 30 °C)
41 d/yr
Rainy days (≥ 1 mm)
99 d/yr
Annual snowfall
36.9 cm
Average feels-like high
17.1 °C
Average feels-like low
8.2 °C
Average peak gust
39.2 km/h
Tropical nights (≥ 20 °C)
34 d/yr
Solar radiation
15.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.47 · 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
39.4 °C
24 July 2007
Coldest day
-15.4 °C
25 January 1942
Wettest day
86 mm
1 November 1966
Windiest day
51.9 km/h
1 January 1971
Strongest gust
127.4 km/h
1 January 1971
Hottest feels-like
43.0 °C
7 July 1988
Coldest feels-like
-21.1 °C
11 January 1940
Snowiest day
22.3 cm
25 December 1986
Sunniest day
14.8 h
23 June 1946
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 | 10.0 °C | +3.0 °C | 47 mm | -41 mm |
| Feb | 7.3 °C | -1.3 °C | 20 mm | -59 mm |
| Mar | 15.7 °C | +4.2 °C | 58 mm | -17 mm |
| Apr | 17.1 °C | +0.6 °C | 70 mm | +7 mm |
| May | 22.0 °C | +0.2 °C | 116 mm | +54 mm |
| Jun | 30.7 °C | +4.0 °C | 3 mm | -47 mm |
| Jul | 33.9 °C | +4.0 °C | 5 mm | -21 mm |
| Aug | 31.7 °C | +1.4 °C | 10 mm | -5 mm |
| Sep | 28.1 °C | +2.3 °C | 6 mm | -24 mm |
| Oct | 18.6 °C | -0.8 °C | 111 mm | +45 mm |
| Nov | 16.5 °C | +2.9 °C | 210 mm | +106 mm |
| Dec | 10.9 °C | +2.0 °C | 43 mm | -67 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 Arrianá?
Arrianá has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 14.1 °C and it receives 767 mm of precipitation per year.
What is the hottest day ever recorded in Arrianá?
The hottest day measured in Arrianá between 1940 and 2025 was 24 July 2007, reaching 39.4 °C.
What is the coldest day in Arrianá?
The coldest day measured in Arrianá between 1940 and 2025 was 25 January 1942, at -15.4 °C.
Does it snow in Arrianá?
Yes. Arrianá gets on average 36.9 cm of snow per year and has around 34 frost days.
Has the climate of Arrianá warmed?
Yes: Arrianá warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Arrianá?
The wettest day measured in Arrianá between 1940 and 2025 was 1 November 1966, with 86 mm of rain in 24 hours.
What was the windiest day in Arrianá?
The windiest day measured in Arrianá between 1940 and 2025 was 1 January 1971, with winds reaching 51.9 km/h.
What is the warmest month in Arrianá?
The warmest month in Arrianá is July (24.9 °C on average); the coldest is January (3.9 °C).
How much does it rain in Arrianá?
Arrianá receives on average 767 mm of precipitation per year, spread over about 99 rainy days.
Is it sunny in Arrianá?
Arrianá gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
What is the biggest single-day snowfall in Arrianá?
The heaviest 24-hour snowfall measured in Arrianá between 1940 and 2025 was 25 December 1986, with 22.3 cm.
Are there tropical nights in Arrianá?
Yes: Arrianá has on average 34 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Arrianá?
In Arrianá, between 1940 and 2025, the highest apparent temperature reached 43.0 °C on 7 July 1988, and the lowest was -21.1 °C on 11 January 1940.
Compare Arrianá with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Arrianá