Aigio climate — normals and trends
Aigio (Greece) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 14.4 °C and it receives 816 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 (24.1 °C on average) and the coldest is January (5.8 °C). Rainfall peaks in December.
Aigio averages 15 frost days, 37 hot days (≥ 30 °C) and 110 rainy days per year.
Aigio has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.5 °C (on 23 August 1958) and the coldest -15.5 °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
AigioWest Greece
- coords
- 38.25°, 22.08°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.4°C
Average daily high
19.0°C
Average daily low
10.4°C
Annual rainfall
816mm
Sunshine / day
10.4h
Mean relative humidity
72%
Average peak wind
10.5km/h
Seasonal range
18.3°C
Frost days (< 0 °C)
15 d/yr
Hot days (≥ 30 °C)
37 d/yr
Rainy days (≥ 1 mm)
110 d/yr
Annual snowfall
26.7 cm
Average feels-like high
18.4 °C
Average feels-like low
9.3 °C
Average peak gust
37.2 km/h
Tropical nights (≥ 20 °C)
19 d/yr
Solar radiation
16.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.28 · 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
39.5 °C
23 August 1958
Coldest day
-15.5 °C
14 January 1968
Wettest day
94 mm
20 November 1999
Windiest day
29.6 km/h
14 February 1962
Strongest gust
116.6 km/h
14 February 1962
Hottest feels-like
43.4 °C
7 July 1988
Coldest feels-like
-19.7 °C
14 January 1968
Snowiest day
36.8 cm
5 January 1946
Sunniest day
14.7 h
17 June 2010
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 | 12.4 °C | +3.1 °C | 54 mm | -61 mm |
| Feb | 9.7 °C | -0.6 °C | 58 mm | -42 mm |
| Mar | 16.3 °C | +3.7 °C | 52 mm | -39 mm |
| Apr | 17.4 °C | +0.8 °C | 48 mm | -22 mm |
| May | 22.7 °C | +1.0 °C | 43 mm | -6 mm |
| Jun | 30.4 °C | +3.9 °C | 14 mm | -11 mm |
| Jul | 32.9 °C | +3.4 °C | 1 mm | -10 mm |
| Aug | 30.7 °C | +1.0 °C | 5 mm | -7 mm |
| Sep | 27.5 °C | +1.8 °C | 45 mm | +10 mm |
| Oct | 18.3 °C | -1.9 °C | 147 mm | +73 mm |
| Nov | 16.9 °C | +1.9 °C | 113 mm | +1 mm |
| Dec | 12.8 °C | +2.0 °C | 74 mm | -51 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 Aigio?
Aigio has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 14.4 °C and it receives 816 mm of precipitation per year.
What is the hottest day ever recorded in Aigio?
The hottest day measured in Aigio between 1940 and 2025 was 23 August 1958, reaching 39.5 °C.
What is the coldest day in Aigio?
The coldest day measured in Aigio between 1940 and 2025 was 14 January 1968, at -15.5 °C.
Does it snow in Aigio?
Yes. Aigio gets on average 26.7 cm of snow per year and has around 15 frost days.
Has the climate of Aigio warmed?
Yes: Aigio warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aigio?
The wettest day measured in Aigio between 1940 and 2025 was 20 November 1999, with 94 mm of rain in 24 hours.
What was the windiest day in Aigio?
The windiest day measured in Aigio between 1940 and 2025 was 14 February 1962, with winds reaching 29.6 km/h.
What is the warmest month in Aigio?
The warmest month in Aigio is July (24.1 °C on average); the coldest is January (5.8 °C).
How much does it rain in Aigio?
Aigio receives on average 816 mm of precipitation per year, spread over about 110 rainy days.
Is it sunny in Aigio?
Aigio 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 Aigio?
The heaviest 24-hour snowfall measured in Aigio between 1940 and 2025 was 5 January 1946, with 36.8 cm.
Are there tropical nights in Aigio?
Yes: Aigio has on average 19 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aigio?
In Aigio, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 7 July 1988, and the lowest was -19.7 °C on 14 January 1968.
Compare Aigio with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aigio