Mytilene climate — normals and trends
Mytilene (Greece) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 17.1 °C and it receives 757 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 (9.9 °C). Rainfall peaks in December.
Mytilene averages 0 frost days, 7 hot days (≥ 30 °C) and 78 rainy days per year.
Mytilene has warmed by +1.3 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.6 °C (on 11 July 1980) and the coldest -3.9 °C (on 4 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
MytileneNorth Aegean
- coords
- 39.11°, 26.56°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.1°C
Average daily high
19.2°C
Average daily low
15.2°C
Annual rainfall
757mm
Sunshine / day
10.7h
Mean relative humidity
71%
Average peak wind
25.5km/h
Seasonal range
15.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
78 d/yr
Annual snowfall
1.9 cm
Average feels-like high
18.0 °C
Average feels-like low
13.0 °C
Average peak gust
39.9 km/h
Tropical nights (≥ 20 °C)
101 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.37 · 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
33.6 °C
11 July 1980
Coldest day
-3.9 °C
4 January 1942
Wettest day
95 mm
16 November 1955
Windiest day
63.7 km/h
15 February 1962
Strongest gust
112.7 km/h
22 January 2004
Hottest feels-like
37.6 °C
23 July 2025
Coldest feels-like
-11.8 °C
9 February 1976
Snowiest day
9.6 cm
7 January 2017
Sunniest day
14.3 h
5 July 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 | +3.0 °C | 110 mm | -30 mm |
| Feb | 10.4 °C | -1.6 °C | 69 mm | -38 mm |
| Mar | 15.9 °C | +2.4 °C | 34 mm | -44 mm |
| Apr | 17.0 °C | +0.3 °C | 33 mm | -15 mm |
| May | 21.0 °C | +0.2 °C | 17 mm | -6 mm |
| Jun | 27.7 °C | +2.5 °C | 0 mm | -9 mm |
| Jul | 29.5 °C | +1.7 °C | 0 mm | -2 mm |
| Aug | 28.8 °C | +1.0 °C | 0 mm | -2 mm |
| Sep | 25.9 °C | +1.2 °C | 14 mm | -2 mm |
| Oct | 20.1 °C | -0.3 °C | 126 mm | +69 mm |
| Nov | 19.0 °C | +2.6 °C | 141 mm | +20 mm |
| Dec | 14.4 °C | +1.3 °C | 64 mm | -93 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 Mytilene?
Mytilene has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 17.1 °C and it receives 757 mm of precipitation per year.
What is the hottest day ever recorded in Mytilene?
The hottest day measured in Mytilene between 1940 and 2025 was 11 July 1980, reaching 33.6 °C.
What is the coldest day in Mytilene?
The coldest day measured in Mytilene between 1940 and 2025 was 4 January 1942, at -3.9 °C.
Does it snow in Mytilene?
Yes. Mytilene gets on average 1.9 cm of snow per year and has around 0 frost days.
Has the climate of Mytilene warmed?
Yes: Mytilene warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mytilene?
The wettest day measured in Mytilene between 1940 and 2025 was 16 November 1955, with 95 mm of rain in 24 hours.
What was the windiest day in Mytilene?
The windiest day measured in Mytilene between 1940 and 2025 was 15 February 1962, with winds reaching 63.7 km/h.
What is the warmest month in Mytilene?
The warmest month in Mytilene is July (25.2 °C on average); the coldest is January (9.9 °C).
How much does it rain in Mytilene?
Mytilene receives on average 757 mm of precipitation per year, spread over about 78 rainy days.
Is it sunny in Mytilene?
Mytilene gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
What is the biggest single-day snowfall in Mytilene?
The heaviest 24-hour snowfall measured in Mytilene between 1940 and 2025 was 7 January 2017, with 9.6 cm.
Are there tropical nights in Mytilene?
Yes: Mytilene has on average 101 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mytilene?
In Mytilene, between 1940 and 2025, the highest apparent temperature reached 37.6 °C on 23 July 2025, and the lowest was -11.8 °C on 9 February 1976.
Compare Mytilene with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mytilene