Athens Weather in August
Greece · Mediterranean climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
August in Athens sees average temperatures ranging from a low of 23.4°C (74.1°F) to a high of 33.3°C (91.9°F), with a mean of 28.3°C (82.9°F). Compared to the annual average of 18.2°C (64.8°F), this month is 10.1°C warmer than the yearly norm. Precipitation averages 18.7mm, making it approximately 23.0mm drier than the monthly average of 42.0mm. The city receives an average of 12.8 hours of sunshine per day during August, with relative humidity averaging 45.4%. Wind speeds reach an average maximum of 17.2 km/h. For travelers, this month offers a temperature experience in Athens, with drier-than-average conditions compared to the rest of the year.
If you're planning to hike up Lycabettus or walk the Acropolis, go early or go home. I tried the Acropolis at 11am in August — 36°C, UV 10, zero shade, miserable. June at 7am was a different world: 24°C, golden light, mostly empty. The Meltemi wind picks up July-August afternoons, giving some relief but kicking up dust. Spring hiking around Mount Hymettus is best April-May: 20°C, wildflowers, manageable UV. Sea swims are glorious September-October when the water's still 24°C but the air cools to 26°C.
August vs Adjacent Months
| Metric | July | August | September |
|---|---|---|---|
| Mean Temp | 29.0°C (84.2°F) | 28.3°C (82.9°F) | 23.9°C (75.0°F) |
| Rainfall | 8.8mm | 18.7mm | 20.6mm |
| Sunshine | 13.7 hrs | 12.8 hrs | 11.4 hrs |
| Humidity | 40.4% | 45.4% | 55.8% |
| Wind | 17.7 km/h | 17.2 km/h | 16.8 km/h |
| Rainy Days | 4.0 | 6.2 | 8.0 |
Seasonal Context
August falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Athens in August, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Athens in August?
The average temperature in Athens during August ranges from 23.4°C (74.1°F) to 33.3°C (91.9°F), with a mean of 28.3°C (82.9°F).
How much does it rain in Athens in August?
Athens receives an average of 18.7mm of precipitation in August, spread across approximately 6.2 rainy days.
What should I pack for Athens in August?
Based on August weather data, pack lightweight, breathable clothing, sunscreen, and a hat.
Is August a good time to visit Athens?
August is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Athens
Cities with Similar August Climate (Mediterranean)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 37.98°, 23.73°. Timezone: Europe/Athens. Last updated: 2026-07-30.