Irákleion has warmed about 2.9°F between 1971 and 2024.
About 0.5°F per decade, measured from Irákleion's official daily weather records, 1971–2024. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.
Is that a lot? Irákleion's climate has warmed more slowly than most other cities in Greece.
What has actually changed
Each card compares the 1970s (the first ten years of the
record) with recent years (the last ten) — the same span
the headline and the chart use.
Freezing nights
about the same
1970s
0 / yr
→
Recent
0 / yr
Winters about as cold as before
Average temperature
+2.0°F
1970s
64.7°F
→
Recent
66.7°F
A steady upward drift
Hot days above 90°F
about the same
1970s
8 / yr
→
Recent
8 / yr
About the same number of heat days
Rainy days
5 fewer days
1970s
68 / yr
→
Recent
63 / yr
Drier on average
Irákleion's temperature, year by year
Average temperature for each year from 1971 to 2024.
a warmer-than-average year a cooler-than-average year
Each bar is one year. Most recent years sit above the older ones.
Some recent years still came in cool — warming is a slope,
not a straight climb.
When in the year the change shows up
How much warmer each month is now than in the 1970s.
Useful if you garden or care about a particular season —
otherwise the headline above already has the answer.
August has warmed the most — about 1.5°F. The warming runs across the whole year, not just one season.
Methodology & sources
Temperature — 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.