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Irákleion weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Irákleion?
For a warm holiday, the best week has been 16–22 September (Weather Index 96). Favourable start dates for a 7-day trip run from 4 September to 13 October. July is warmest (32°C), July and August are driest and June has the most sun.
- Warmest
- July 32°C
- Coolest
- January 16°C
- Driest
- July and August 4% rain-day chance
- Wettest
- January 39% rain-day chance
- Sunniest
- June 14 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Irákleion
Irákleion historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 16.1 | 9.7 | 39.0 | 12.1 | 57.6 | 8.6 |
| February | 16.9 | 9.9 | 29.3 | 8.2 | 53.8 | 9.8 |
| March | 18.9 | 10.9 | 27.4 | 8.5 | 56.4 | 10.5 |
| April | 22.7 | 13.3 | 16.0 | 4.8 | 27.8 | 12.0 |
| May | 26.6 | 17.1 | 18.1 | 5.6 | 37.4 | 12.7 |
| June | 30.2 | 21.4 | 8.3 | 2.5 | 16.2 | 13.7 |
| July | 31.8 | 24.0 | 3.5 | 1.1 | 10.8 | 13.3 |
| August | 31.5 | 24.1 | 4.2 | 1.3 | 12.9 | 12.9 |
| September | 29.2 | 21.3 | 8.7 | 2.6 | 16.4 | 11.8 |
| October | 25.4 | 17.8 | 13.2 | 4.1 | 33.3 | 10.1 |
| November | 21.9 | 14.8 | 22.3 | 6.7 | 39.7 | 9.3 |
| December | 17.7 | 11.5 | 37.7 | 11.7 | 61.8 | 8.5 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.