Kárystos climate — normals and trends
Kárystos (Greece) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 17.4 °C and it receives 429 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 (25.2 °C on average) and the coldest is January (10.4 °C). Rainfall peaks in December.
Kárystos averages 0 frost days, 6 hot days (≥ 30 °C) and 65 rainy days per year.
Kárystos has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.7 °C (on 4 July 1998) and the coldest -2.7 °C (on 24 January 2004).
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
KárystosCentral Greece
- coords
- 38.01°, 24.42°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.4°C
Average daily high
19.6°C
Average daily low
15.3°C
Annual rainfall
429mm
Sunshine / day
10.6h
Mean relative humidity
70%
Average peak wind
26.3km/h
Seasonal range
14.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
65 d/yr
Annual snowfall
3.7 cm
Average feels-like high
18.1 °C
Average feels-like low
13.0 °C
Average peak gust
47.6 km/h
Tropical nights (≥ 20 °C)
99 d/yr
Solar radiation
17.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °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
36.7 °C
4 July 1998
Coldest day
-2.7 °C
24 January 2004
Wettest day
126 mm
26 March 1998
Windiest day
67.3 km/h
22 January 2004
Strongest gust
127.1 km/h
22 January 2004
Hottest feels-like
39.8 °C
26 July 2023
Coldest feels-like
-9.3 °C
14 January 1973
Snowiest day
21.7 cm
28 January 1981
Sunniest day
14.5 h
25 June 1942
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 | 14.9 °C | +2.6 °C | 36 mm | -40 mm |
| Feb | 11.4 °C | -1.4 °C | 49 mm | -11 mm |
| Mar | 15.8 °C | +1.6 °C | 30 mm | -23 mm |
| Apr | 16.6 °C | -0.8 °C | 40 mm | +13 mm |
| May | 20.8 °C | -0.5 °C | 12 mm | -3 mm |
| Jun | 25.3 °C | -0.2 °C | 0 mm | -6 mm |
| Jul | 28.5 °C | +1.1 °C | 0 mm | -3 mm |
| Aug | 27.1 °C | -0.2 °C | 1 mm | -2 mm |
| Sep | 24.5 °C | -0.2 °C | 9 mm | -2 mm |
| Oct | 20.6 °C | -0.2 °C | 65 mm | +24 mm |
| Nov | 19.4 °C | +2.2 °C | 28 mm | -27 mm |
| Dec | 15.3 °C | +1.4 °C | 70 mm | -8 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 Kárystos?
Kárystos has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 17.4 °C and it receives 429 mm of precipitation per year.
What is the hottest day ever recorded in Kárystos?
The hottest day measured in Kárystos between 1940 and 2025 was 4 July 1998, reaching 36.7 °C.
What is the coldest day in Kárystos?
The coldest day measured in Kárystos between 1940 and 2025 was 24 January 2004, at -2.7 °C.
Does it snow in Kárystos?
Yes. Kárystos gets on average 3.7 cm of snow per year and has around 0 frost days.
Has the climate of Kárystos warmed?
Yes: Kárystos warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kárystos?
The wettest day measured in Kárystos between 1940 and 2025 was 26 March 1998, with 126 mm of rain in 24 hours.
What was the windiest day in Kárystos?
The windiest day measured in Kárystos between 1940 and 2025 was 22 January 2004, with winds reaching 67.3 km/h.
What is the warmest month in Kárystos?
The warmest month in Kárystos is July (25.2 °C on average); the coldest is January (10.4 °C).
How much does it rain in Kárystos?
Kárystos receives on average 429 mm of precipitation per year, spread over about 65 rainy days.
Is it sunny in Kárystos?
Kárystos 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 Kárystos?
The heaviest 24-hour snowfall measured in Kárystos between 1940 and 2025 was 28 January 1981, with 21.7 cm.
Are there tropical nights in Kárystos?
Yes: Kárystos has on average 99 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kárystos?
In Kárystos, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 26 July 2023, and the lowest was -9.3 °C on 14 January 1973.
Compare Kárystos with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kárystos