Heraklion
Greece · Europe
Year-round range: 47°F to 89°F
May
Excellent conditions this month
Warm sea, low rain, and plenty of bright days make this a strong beach month.
Your monthly fit score
Comfort fit by month.
Climate details▼
Temperature
Average highs and lows.
May has comfortable temperatures — not too hot, not too cold.
Shaded band = typical daily swing (P10 of night lows to P90 of afternoon peaks) — spans wider than avg high/low lines because it captures day-to-day variation.
| = MayRainfall
Monthly rain and rain days.
May has moderate rainfall — occasional showers but mostly manageable.
Sunshine
Average hours of bright sun per day.
May is one of the sunniest months — great for outdoor plans.
Clear sky
Clear-sky share is the inverse of average cloud cover (100% minus cloud cover). Band labels follow standard meteorological categories; distribution within each band varies by day.
Air comfort by month
Humidity and heat feel by month.
May is mostly comfortable — low heat and humidity pressure.
Time-of-day patterns
Typical hourly rhythm for May.
Temperature by hour
Temperature by hour and month
Typical temperature through the day across the year (1996-2025 normals, local time). Shaded cells are nighttime.
In May, afternoons reach about 80° and nights settle near 64°.
▶Full month-by-month data
| Month | High °F | Low °F | Rain days | Rain (in) | Sun h/day | Humidity | Sea °F |
|---|---|---|---|---|---|---|---|
| Jan | 59°F | 48°F | 14 | 3.4in | 5.2h | 80.71428571428572% | 62°F |
| Feb | 60°F | 47°F | 12 | 2.7in | 6.1h | 78.71428571428571% | 60°F |
| Mar | 64°F | 49°F | 8 | 2.0in | 7.6h | 72.71428571428571% | 60°F |
| Apr | 71°F | 54°F | 5 | 1.0in | 9.6h | 64.85714285714285% | 62°F |
| May | 79°F | 61°F | 4 | 0.6in | 12.1h | 59.14285714285714% | 67°F |
| Jun | 86°F | 68°F | 1 | 0.1in | 13.6h | 55.42857142857142% | 73°F |
| Jul | 89°F | 73°F | 1 | 0.2in | 13.3h | 55.14285714285714% | 78°F |
| Aug | 88°F | 73°F | 1 | 0.2in | 12.9h | 59.285714285714285% | 79°F |
| Sep | 84°F | 68°F | 4 | 0.5in | 11.7h | 64.28571428571428% | 77°F |
| Oct | 76°F | 62°F | 8 | 2.0in | 8.1h | 72.28571428571428% | 74°F |
| Nov | 69°F | 56°F | 9 | 2.3in | 5.8h | 77.71428571428571% | 69°F |
| Dec | 61°F | 51°F | 14 | 3.5in | 4.7h | 81.85714285714285% | 65°F |