Greece › Athens › September Weather
Updated: July 19, 2026 • By Santorini Dave
Questions? dave@santorinidave.com
See Also
• Best Places to Stay in Athens
• Best Hotels in Athens
• Best Hotels on the Athens Riviera
• Best Hotels for Families
• Hotels with Acropolis Views
• Hotels with Rooftop Pools
The September view from the Grande Bretagne, my favorite hotel in Athens, overlooking Syntagma Square.
Is September a Good Time to Visit Athens?
Yes. September is my favorite month to visit Athens.
The city is warm, lively, and fully open, but the worst summer heat eases as the month goes on. The sea is still warm, evenings are excellent for outdoor dining, and Athens feels more like a working city again after the August holidays.
It is not a quiet or cheap month. The Acropolis, central hotels, rooftop restaurants, and ferries remain busy. But the balance of good weather, swimming, sightseeing, and city life is hard to beat.
Choose early September for beaches, islands, and a summer atmosphere. Choose late September for walking, archaeological sites, restaurants, and day trips.
Athens in September at a Glance
- Weather: Hot at the start of the month, comfortably warm by the end. Rain is possible but rarely disrupts a trip for long.
- Crowds: Busy at the Acropolis and main tourist areas, though easier than July and August.
- Prices: Central hotels remain expensive. Rates can improve late in the month, but September is not low season.
- Best for: Sightseeing, restaurants, nightlife, day trips, beaches, and combining Athens with the islands.
- Main downside: Early September can still be too hot for midday sightseeing.
- Swimming: Excellent along the Athens Riviera.
Early September vs. Late September
Early September still feels like summer. Expect hot afternoons, warm nights, busy ferries, lively rooftops, and excellent swimming.
Late September is better for a city-focused trip. Days remain warm, but walking and archaeological sites become more comfortable. Evenings are cooler without feeling cold.
If Athens is the main destination, I prefer the second half of September. If you are combining Athens with Santorini, Mykonos, Naxos, Paros, Milos, or Crete, early to mid-September is ideal.
Athens Weather in September
Early September afternoons can reach around 30°C (86°F) or higher. By late September, daytime temperatures are more often in the mid-to-high 20s Celsius, roughly the upper 70s to low 80s Fahrenheit.
Rain becomes more possible later in the month, but prolonged wet weather is unusual. A short shower or thunderstorm is more likely than several rainy days.
September is much better than July or August for walking, but it is not cool. The Acropolis, Ancient Agora, Roman Agora, and Temple of Olympian Zeus remain exposed to strong sun. Visit outdoor sites early or late, especially during the first half of the month.
Best Things to Do in Athens in September
- Visit the Acropolis early: Opening time offers the best combination of lower temperatures and manageable crowds. A late-afternoon visit has softer light but can still be busy.
- Continue to the Acropolis Museum: It is the natural second stop and a good midday escape from the sun.
- Visit the National Archaeological Museum: Essential for anyone interested in ancient Greece and worth several hours.
- Walk central Athens in the evening: Plaka, Monastiraki, Psyri, Anafiotika, and the pedestrian streets around the Acropolis are at their best after the heat fades.
- Book a rooftop dinner or drink: September evenings are warm enough to sit outside without the intensity of midsummer.
- Explore beyond the tourist center: Pangrati, Kolonaki, Koukaki, and Petralona feel lively again once Athenians return from summer holidays.
- Spend an afternoon on the Athens Riviera: Voula, Vouliagmeni, and Varkiza offer excellent swimming through September.
Visiting the Acropolis in September. Reserve tickets or an early tour in advance.
Should You Visit the Athens Riviera?
Yes. September is one of the best months for it. The sea has warmed all summer, beaches remain active, and the worst heat has started to ease.
Glyfada is better for restaurants, shopping, and nightlife than for the beach itself. Voula, Vouliagmeni, and Varkiza have better swimming.
Allow 45 to 75 minutes each way from central Athens, depending on traffic, destination, and transportation. For a two-night visit, concentrate on the city. With three or four nights, a beach afternoon is worthwhile.
Where to Stay in Athens in September
Stay central. September is an excellent walking month, and a good location lets you explore in the morning and evening without wasting time on transportation.
- Plaka: Best for first-time visitors who want major sights and restaurants nearby. Atmospheric but touristy, with slopes and steps in places.
- Syntagma: Best all-around choice for convenience, airport access, taxis, shopping, and short stays.
- Makrygianni and Koukaki: Best for the Acropolis and Acropolis Museum. Koukaki is calmer and more residential farther from the main sights.
- Monastiraki and Psyri: Best for restaurants, rooftops, nightlife, and evening energy. Expect noise in the busiest streets.
- Kolonaki: Best for upscale hotels, boutiques, and restaurants. Much of the neighborhood is uphill.
- Piraeus: Stay here only for an early ferry or late ferry arrival.
- Airport area: Useful only for a late arrival, early departure, or overnight connection.
For most travelers, I would choose Syntagma, Plaka, Makrygianni, Koukaki, or Monastiraki. See my complete guide to the best places to stay in Athens.
The Plaka neighborhood and Electra Palace hotel in September.
What to Book in Advance
- Central hotel: September is popular, and the best hotels in Plaka, Syntagma, Monastiraki, and Makrygianni can sell out.
- Acropolis ticket or tour: Reserve an early entry through my Acropolis tours guide.
- Popular rooftop restaurants: Book ahead for an Acropolis-view table, especially Thursday through Sunday.
- Ferries and domestic flights: Preferred times and popular routes can sell out, particularly early in the month and on weekends.
- Mainland trips: Reserve tours, rental cars, or hotels early for Delphi, Meteora, and the Peloponnese.
Ferries and Island Connections
September is one of the best months to combine Athens with the islands. The sea is warm, island towns remain active, and major ferry routes operate frequently.
- Athens to Santorini
- Athens to Santorini: Fly or Ferry?
- Athens to Mykonos
- Athens to Naxos
- Athens to Paros
- Athens to Crete
- Athens to Milos
Book important routes ahead and arrive at Piraeus early. Ferry gates can be widely separated, and traffic from central Athens can be unpredictable.
Do not plan a tight ferry-to-flight connection. Spend the final night in Athens before an international flight.
Piraeus ferry port in September. Book important routes in advance, particularly Athens to Santorini and Athens to Mykonos.
Best Day Trips in September
September is much better than midsummer for mainland day trips.
- Delphi: The best all-around archaeological day trip from Athens. It still gets hot early in the month, but conditions improve considerably by late September.
- Cape Sounion: An easy half-day trip with the Temple of Poseidon and a coastal sunset.
- Peloponnese: Mycenae, Epidaurus, and Nafplio work well as a long day trip, though an overnight stay is better.
- Meteora: Spectacular, but too far for a relaxed day trip. Stay overnight when possible.
See my guides to Delphi, Meteora, and the Peloponnese.
The Roman Agora between Plaka and Monastiraki, with the Acropolis rising behind it.
September Compared with Other Months
- September vs. August: September is better for almost everyone. It is cooler, easier for walking, and less disrupted by local holidays.
- September vs. October: September is warmer and better for swimming. October is cooler and better for long sightseeing days, but the weather is less predictable.
- September vs. June: Both are excellent. June has longer days; September has warmer water and a city that feels more settled after summer.
See Best Time to Visit Athens for a complete month-by-month comparison.
Psyri in September. Athenians are back from their summer holidays, and the city’s restaurants and nightlife are fully active.
Frequently Asked Questions
- Is Athens hot in September? Yes, especially in the first half of the month. Early September still feels like summer. Late September is more comfortable for walking and archaeological sites.
- Is early or late September better? Early September is better for beaches and island combinations. Late September is better for sightseeing, day trips, and a city-focused visit.
- Is the Acropolis crowded in September? Yes. September remains a popular month. Reserve an early entry or tour and avoid the busiest mid-morning hours.
- How many days do you need? Two full days is the minimum. Three days is better for the Acropolis, two major museums, neighborhood walks, and good dinners without rushing.
- Where should I stay? Most visitors should stay in Syntagma, Plaka, Makrygianni, Koukaki, Monastiraki, or Psyri. Stay in Piraeus only for an early ferry.
- Are Athens hotels cheaper in September? Not necessarily. September is one of Athens’ most popular months, and good central hotels can be expensive. Rates may ease near the end of the month.
- Is September good for families? Yes. It is much easier than August, particularly later in the month. Stay central and avoid long outdoor sightseeing sessions during hot afternoons.
- Can you swim in September? Yes. Sea temperatures along the Athens Riviera remain warm throughout the month.
- Can you visit the islands from Athens? Yes. September is one of the best months for combining Athens with the Greek islands.
- Do I need a rental car? No. Use walking, the metro, taxis, and transfers within Athens. Rent a car only for mainland travel.
About Santorini Dave