What August feels like in Heraklion
For Heraklion, August is late summer on the calendar. Afternoons hit 30.9°C (87.6°F), close to the July peak: sightseeing works best in the morning or evening. Nights fall to about 22.8°C (73°F), 8.1°C (14.6°F) below the afternoon, still warm enough for short sleeves. Humidity averages 59%, drier than usual here: the heat rarely feels sticky.
Rain in Heraklion in August
Rain is rare, about 1 wet day in 31, among the three driest months of the year; wet days bring about 7.4 mm (0.3 in), enough to soak you without an umbrella, close to the city's usual 6.5 mm.
How August compares to the rest of the year
August is the warmest month of the year, and about as warm as July, with 5 mm more rain. Temperatures keep falling into September, to about 28.1°C (82.6°F), and it gets wetter.
August in Heraklion: what 20 years show
Based on monthly averages from 2006–2025, not daily records.
Usual range
In most years August averages 29–33°C (85–91°F) in the afternoon, with 0–12 mm of rain. Rain falls about one day in 31 in an average August.
Records
| Record | Year | Avg high | Rain | Rainy days |
|---|---|---|---|---|
| Warmest August | 2006 | 33.3°C (91.9°F) | 0 mm | 0 |
| Coolest August | 2017 | 28.7°C (83.7°F) | 5 mm | 1 |
| Wettest August | 2015 | 30.4°C (86.7°F) | 86 mm | 8 |
| Driest August | 8 of 20 years | — | 0 mm | — |
Odds across years
In 5 of 20 years, August had 2 or more rainy days. In 5 of 20 years, the average high reached 32°C (89.6°F) or more. In 6 of 20 years, it stayed below 30°C (86°F).
Who August suits
- Sightseeing: a good fit — warm but manageable for a city walk.
- Parks & outdoor: less ideal — afternoons are too warm to linger outside.
Tips for visiting Heraklion in August
Sun Protection
Sunscreen, a hat and sunglasses; light breathable clothes.
What to wear in Heraklion in August
These are estimates from monthly averages, so read each temperature as "around".
By time of day
- Morning, around 24°C (76°F): light, loose clothes from the start of the day.
- Afternoon, around 31°C (88°F): light clothes, a hat and sunscreen.
- Evening, around 27°C (80°F): the same light clothes; no extra layer is needed.
Cool year or hot year
Even the coolest August of 2006–2025, in 2017, averaged 28.7°C (83.7°F), and the hottest, in 2006, reached 33.3°C (91.9°F). Either way, there is nothing warmer to pack.
Packing for 7 days
Expect no wet days in a typical week, so you can leave rain gear at home.
- Loose, breathable clothes
- A hat, sunscreen and sunglasses
- Light, breathable shoes
Travelling on specific dates? Check your exact dates in the Trip Planner.
Quick questions
How warm is Heraklion in August?
Afternoons average 30.9°C (87.6°F) and nights about 22.8°C (73°F), hot by most people's standards; it is the warmest month of the year.
Does it rain a lot in Heraklion in August?
No: only about 1 rainy day and 7 mm for the whole month.
What should I wear in Heraklion in August?
Pack sun protection; it stays warm after dark, so no extra layer is needed.
Is August or September better for visiting Heraklion?
August scores slightly better on our climate ranking (#2 of 12 vs #4). September is cooler and has more rainy days.
