Home › Cities › Greece › Irákleion
Irákleion, Greece climate
Csa Hot-summer Mediterranean
Irákleion has a seasonal warm-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is August with an average daily high near 85°F, while the coldest is February averaging around 47°F at night. Precipitation totals about 18 inches a year and is strongly seasonal — December alone averages 3.6 inches while July barely receives 0.03 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsIrákleion climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 60 | 59 | 63 | 68 | 75 | 82 | 85 | 85 | 81 | 76 | 69 | 62 |
| Avg temp (°F) | 54 | 53 | 56 | 61 | 67 | 74 | 79 | 79 | 75 | 69 | 63 | 56 |
| Avg low (°F) | 48 | 47 | 49 | 53 | 60 | 67 | 72 | 73 | 68 | 63 | 56 | 51 |
| Precipitation (in) | 3.6 | 2.7 | 1.9 | 0.9 | 0.5 | 0.1 | 0.0 | 0.1 | 0.5 | 2.0 | 2.5 | 3.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 60 | 59 | 63 | 68 | 75 | 82 |
| Avg temp (°F) | 54 | 53 | 56 | 61 | 67 | 74 |
| Avg low (°F) | 48 | 47 | 49 | 53 | 60 | 67 |
| Precipitation (in) | 3.6 | 2.7 | 1.9 | 0.9 | 0.5 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 85 | 85 | 81 | 76 | 69 | 62 |
| Avg temp (°F) | 79 | 79 | 75 | 69 | 63 | 56 |
| Avg low (°F) | 72 | 73 | 68 | 63 | 56 | 51 |
| Precipitation (in) | 0.0 | 0.1 | 0.5 | 2.0 | 2.5 | 3.6 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 10 | 8 | 5 | 3 | 0.6 | 0.3 | 0.3 | 2 | 5 | 8 | 12 |
| Days with high ≥ 90°F (days) | — | — | 0.1 | 0.2 | 1 | 2 | 3 | 2 | 1 | 0.5 | 0.0 | — |
| Days with low ≤ 32°F (days) | 0.0 | 0.1 | 0.0 | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 10 | 8 | 5 | 3 | 0.6 |
| Days with high ≥ 90°F (days) | — | — | 0.1 | 0.2 | 1 | 2 |
| Days with low ≤ 32°F (days) | 0.0 | 0.1 | 0.0 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.3 | 0.3 | 2 | 5 | 8 | 12 |
| Days with high ≥ 90°F (days) | 3 | 2 | 1 | 0.5 | 0.0 | — |
| Days with low ≤ 32°F (days) | — | — | — | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 68 | 61 | 53 | 40 | 21 | 13 | 13 | 27 | 48 | 62 | 72 |
| Clear days (≤ 30% cloud) | 4 | 4 | 6 | 7 | 14 | 23 | 29 | 29 | 20 | 10 | 5 | 3 |
| Partly cloudy days (30–70%) | 10 | 9 | 12 | 13 | 12 | 6 | 2 | 2 | 8 | 13 | 12 | 9 |
| Cloudy days (≥ 70%) | 18 | 15 | 14 | 10 | 6 | 1 | 0.2 | 0.1 | 2 | 8 | 13 | 19 |
| Relative humidity (%) | 76 | 76 | 75 | 72 | 70 | 68 | 68 | 70 | 69 | 72 | 74 | 75 |
| Wind speed (mph) | 12.0 | 12.2 | 11.1 | 9.8 | 8.5 | 9.4 | 11.2 | 11.1 | 10.0 | 9.4 | 10.2 | 11.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 68 | 61 | 53 | 40 | 21 |
| Clear days (≤ 30% cloud) | 4 | 4 | 6 | 7 | 14 | 23 |
| Partly cloudy days (30–70%) | 10 | 9 | 12 | 13 | 12 | 6 |
| Cloudy days (≥ 70%) | 18 | 15 | 14 | 10 | 6 | 1 |
| Relative humidity (%) | 76 | 76 | 75 | 72 | 70 | 68 |
| Wind speed (mph) | 12.0 | 12.2 | 11.1 | 9.8 | 8.5 | 9.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 13 | 13 | 27 | 48 | 62 | 72 |
| Clear days (≤ 30% cloud) | 29 | 29 | 20 | 10 | 5 | 3 |
| Partly cloudy days (30–70%) | 2 | 2 | 8 | 13 | 12 | 9 |
| Cloudy days (≥ 70%) | 0.2 | 0.1 | 2 | 8 | 13 | 19 |
| Relative humidity (%) | 68 | 70 | 69 | 72 | 74 | 75 |
| Wind speed (mph) | 11.2 | 11.1 | 10.0 | 9.4 | 10.2 | 11.7 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Heraklion, a weather station, about 4 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.