Aegina climate — normals and trends
Aegina (Greece) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 17.8 °C and it receives 356 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 (26.1 °C on average) and the coldest is January (10.5 °C). Rainfall peaks in December.
Aegina averages 0 frost days, 10 hot days (≥ 30 °C) and 53 rainy days per year.
Aegina has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.3 °C (on 21 August 2006) and the coldest -1.0 °C (on 14 January 1968).
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
AeginaAttica
- coords
- 37.75°, 23.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.8°C
Average daily high
19.6°C
Average daily low
16.3°C
Annual rainfall
356mm
Sunshine / day
10.4h
Mean relative humidity
70%
Average peak wind
20.1km/h
Seasonal range
15.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
53 d/yr
Annual snowfall
1.1 cm
Average feels-like high
19.5 °C
Average feels-like low
14.9 °C
Average peak gust
28.6 km/h
Tropical nights (≥ 20 °C)
119 d/yr
Solar radiation
17.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.32 · 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
36.3 °C
21 August 2006
Coldest day
-1.0 °C
14 January 1968
Wettest day
121 mm
26 March 1998
Windiest day
62.2 km/h
22 February 1940
Strongest gust
99.0 km/h
24 October 1959
Hottest feels-like
40.3 °C
23 July 2023
Coldest feels-like
-9.5 °C
13 February 2004
Snowiest day
9.5 cm
24 January 1942
Sunniest day
14.6 h
25 June 2025
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 | 14.5 °C | +2.5 °C | 43 mm | -16 mm |
| Feb | 11.5 °C | -0.9 °C | 53 mm | +9 mm |
| Mar | 15.9 °C | +2.0 °C | 16 mm | -28 mm |
| Apr | 17.2 °C | +0.2 °C | 22 mm | +1 mm |
| May | 21.8 °C | +0.7 °C | 10 mm | -1 mm |
| Jun | 27.6 °C | +2.2 °C | 0 mm | -3 mm |
| Jul | 30.1 °C | +2.0 °C | 0 mm | -1 mm |
| Aug | 28.7 °C | +0.4 °C | 0 mm | -2 mm |
| Sep | 26.6 °C | +1.2 °C | 7 mm | -5 mm |
| Oct | 21.3 °C | +0.1 °C | 58 mm | +17 mm |
| Nov | 19.7 °C | +2.5 °C | 51 mm | -1 mm |
| Dec | 15.6 °C | +1.9 °C | 69 mm | +4 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 Aegina?
Aegina has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 17.8 °C and it receives 356 mm of precipitation per year.
What is the hottest day ever recorded in Aegina?
The hottest day measured in Aegina between 1940 and 2025 was 21 August 2006, reaching 36.3 °C.
What is the coldest day in Aegina?
The coldest day measured in Aegina between 1940 and 2025 was 14 January 1968, at -1.0 °C.
Does it snow in Aegina?
Yes. Aegina gets on average 1.1 cm of snow per year and has around 0 frost days.
Has the climate of Aegina warmed?
Yes: Aegina warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aegina?
The wettest day measured in Aegina between 1940 and 2025 was 26 March 1998, with 121 mm of rain in 24 hours.
What was the windiest day in Aegina?
The windiest day measured in Aegina between 1940 and 2025 was 22 February 1940, with winds reaching 62.2 km/h.
What is the warmest month in Aegina?
The warmest month in Aegina is August (26.1 °C on average); the coldest is January (10.5 °C).
How much does it rain in Aegina?
Aegina receives on average 356 mm of precipitation per year, spread over about 53 rainy days.
Is it sunny in Aegina?
Aegina gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aegina?
The heaviest 24-hour snowfall measured in Aegina between 1940 and 2025 was 24 January 1942, with 9.5 cm.
Are there tropical nights in Aegina?
Yes: Aegina has on average 119 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aegina?
In Aegina, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 23 July 2023, and the lowest was -9.5 °C on 13 February 2004.
Compare Aegina with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aegina