Greece Athens Weather in August — Climate Guide
August in Athens is very-high
August is very-high for Athens.
August 15 (Assumption Day) — many Greek shops close for owner's vacation. Sea-temp peak. Korean Liberation Day spikes airfares.
Travel score
Athens August Weather Stats
Avg High
33°C
Avg Low
22°C
Rainy Days
1
5mm total
Sunshine
11h
Daily avg
Humidity
45%
dry
UV Index
10
Very high
Wind
9 km/h
Gusts 22
Sea Temp
25°C
swimming peak
Crowds
Very busy
At attractions
August Sunrise & Sunset
Air Quality
PM2.5
20 μg/m³
PM10
35 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
35°C
Nighttime
23°C
Humidity and wind affect how the actual temperature feels.
Wind
9 km/h
Max gust 22 km/h
Activities Recommended for August
August Travel Pros & Cons
Pros
- Sea-temp 25°C
- Greek islands warmest
- Korean Liberation Day usable
Cons
- Aug 15 shop closures
- Korean Liberation Day airfare spike
- Heat continues
August Events & Festivals
- Assumption Day (Aug 15 — many shops close)
- Korean Liberation Day
Athens in August — Full Picture
August 15 (Assumption Day) — many Greek shops close for owner's vacation. Sea-temp peak. Korean Liberation Day spikes airfares.
What to Wear & What to Pack
Like July. Korean Liberation Day fits this period.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
20.3°C
11.3°C
5.3/mo
Summer (Jun·Jul·Aug)
Current32°C
21°C
1.3/mo
Autumn (Sep·Oct·Nov)
22.7°C
14°C
5.7/mo
Winter (Dec·Jan·Feb)
13.7°C
7.3°C
8/mo
Athens Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 13° | 7° | 8d·50mm | 5h | 70% | 2 | Quiet | Low season | |
| 14° | 7° | 7d·50mm | 6h | 68% | 2 | Quiet | Low season | |
| 16° | 8° | 7d·45mm | 7h | 65% | 4 | Quiet | Shoulder | |
| April (Best) | 20° | 11° | 5d·30mm | 9h | 60% | 5 | Busy | Peak |
| May (Best) | 25° | 15° | 4d·20mm | 10h | 55% | 7 | Very busy | Peak |
| 30° | 19° | 2d·10mm | 12h | 50% | 9 | Very busy | Peak | |
| 33° | 22° | 1d·5mm | 12h | 45% | 10 | Very busy | Peak | |
| 33° | 22° | 1d·5mm | 11h | 45% | 10 | Very busy | Peak | |
| September (Best) | 28° | 18° | 3d·15mm | 10h | 55% | 7 | Very busy | Peak |
| October (Best) | 23° | 14° | 6d·50mm | 8h | 65% | 5 | Busy | Shoulder |
| 17° | 10° | 8d·60mm | 5h | 70% | 3 | Moderate | Shoulder | |
| 14° | 8° | 9d·70mm | 4h | 75% | 2 | Moderate | Shoulder |
View Other Months
Athens August Hotel Picks
Frequently Asked Questions
Is August a good time to visit Athens?
Athens in August is very-high. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Athens in August?
Athens August averages a high of 33°C and a low of 22°C.
Does it rain much in Athens in August?
Athens August averages 5mm of rainfall over about 1 rainy days.
What should I wear in Athens in August?
Like July. Korean Liberation Day fits this period.
What time are sunrise and sunset in Athens in August?
Athens August sunrise is 06:30 and sunset is 20:10, with 13h 40min of daylight.
What's the air quality like in Athens in August?
Athens August air quality (AQI) averages 55, rated Moderate. PM2.5 averages 20μg/m³.
What activities are recommended in Athens in August?
In August, Athens is great for Greek islands (Santorini, Mykonos peak), Athens beaches (Glyfada), Acropolis early AM only.
Is August peak season in Athens?
Athens August crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Athens
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.