ClimateAverages

Ilion Climate

Attica, Greece · population 84,793 · 33 weather stations within 200 km · records 1791 to 2025

Average annual daytime high
20.5°C
Warmest month · July
31.4°C
Typical daytime high
Coldest month · January
3.6°C
Typical overnight low

Ilion has an average annual daytime high of 20.5°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 31.4°C, and its coldest is January, with overnight lows near 3.6°C.

Month by month averages

MonthAvg highAvg low
January10.2°C3.6°CColdest
February11.7°C4.2°C
March13.8°C5.5°C
April18.3°C8.5°C
May24.1°C13.1°C
June29.1°C17.4°C
July31.4°C19.9°CWarmest
August31.1°C19.9°C
September26.8°C16.4°C
October20.8°C12.2°C
November16.4°C8.9°C
December11.9°C5.4°C

Temperature range across the year

2°10°18°25°33°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2023
+2.6°C vs. 1951–1980
Coldest year on record
1857
-2.2°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Ilion getting hotter?

Since 1900, Ilion's average temperature has risen by +2.0°C. Compared to the earliest station records that begin in 1791, warming totals +2.3°C.

15.4°16.0°16.7°17.3°18.0°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
April to November

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Ilion?

Ilion's average annual daytime high is 20.5°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 31.4°C, and the coldest is January, with lows averaging 3.6°C.

What is the warmest month in Ilion?

July is the warmest month in Ilion, with typical daytime highs of 31.4°C.

What is the hottest year on record for Ilion?

2023 is the hottest year on record for Ilion, running +2.6°C above the 1951 to 1980 baseline.

Is Ilion getting hotter?

Yes. Since 1900, Ilion has warmed by roughly +2.0°C.

When is the best time to visit Ilion?

April to November typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.