Weather in Poros in September
September is late summer in Poros: hot and mostly dry. Average highs reach 29°C / 84°F, with lows of around 20°C / 68°F. The sea averages about 25°C / 77°F, properly warm for swimming. Rain is rare, with only 2 wet days in an average September. The heat eases, and the sea stays warm long after the summer crowds have gone. Poros is separated from the Peloponnese by a narrow channel, and its pine-covered hills make it greener than most Saronic islands. Daylight lasts about 12½ hours. Bring loose, light clothing, a wide-brimmed hat, strong sunscreen and sunglasses. Mornings and evenings get noticeably cooler as the month goes on. The light is softer than in summer, which makes it a lovely time for photos and walks. The weather can change from one week to the next, so pack for both warm and cool days. Get out early and late, and save the hottest hours of the afternoon for the water.
Swimming in Poros in September
Expect the sea around Poros to be about 25°C / 77°F in September, comfortable for long swims. The sea holds on to the summer's warmth after peaking in August. Try Love Bay for clear water. Beaches are lively but less crowded than in high summer. Many coves are rocky or pebbly, so water shoes are useful. The sea is usually at its calmest early in the morning. No wetsuit needed.
Crowds & Prices in Poros in September
In Poros, September strikes a good balance between atmosphere and space. You'll find better deals on rooms and car hire than in July and August. Go midweek if you can, as weekends bring visitors from Athens. Weekdays are calmer than weekends at the most popular spots. Staying slightly outside the main town usually means better value and more space. Booking a few weeks ahead is usually enough.
What's Open in Poros in September
In September, ferries from Piraeus to Poros run often, with extra fast boats in the peak season. Everything is open, from hotels and tavernas to beach bars and boat trips. Archaeological sites and museums are on their longer summer hours. Boat trips and excursions run regularly, weather permitting. Shops in tourist areas often stay open into the evening. Opening hours are long, with many tavernas serving until late.
Festivals & Holidays in Poros in September
September is harvest time, with grapes picked for wine in many areas and village feasts on 8 September for the Nativity of the Virgin. Late-summer village festivals continue into September, and the grape harvest gets underway. In Poros, as across Greece, these traditions are very much alive. As the season quietens, local life takes over again, with markets and harvest gatherings.
Is September a Good Time to Visit Poros?
September is one of the best months to visit Poros. Expect highs of around 29°C / 84°F and lows near 20°C / 68°F. The sea is warm, the weather is reliable and the summer crowds are thinner, so beaches and villages feel relaxed. It suits almost everyone, from couples to families outside school holidays. The only caveat is that a few seasonal businesses may be closed at the very start or end of the season.
Frequently Asked Questions
What time does the sun set in Poros in September?
Sunset in Poros is at around 7:55 pm at the start of September, around 7:35 pm in mid-September and around 7:15 pm by the end of the month, in Greek local time. The clock tower above the town is the favorite viewpoint.
Is it still hot in Poros in September?
Yes, especially early in the month. September usually stays sunny and warm, with the sea still warm from the summer, but the heat is gentler than in August and evenings are more comfortable. The first autumn showers may arrive towards the end of the month.
Is Poros a good weekend trip from Athens in September?
Yes, though weekends are busy with Athenians in September. Book ferries and accommodation early, or go midweek for a calmer stay.
Do I need a car on Poros in September?
Not necessarily. Buses link Poros Town with the main beaches and villages in September, and taxis are available, though they're busy. A car, scooter or ATV gives you more freedom to explore quieter corners, so book one early.
Is September or October better for visiting Poros?
September, if you want swimming and everything open. October is quieter and cheaper, and the sea often stays pleasant early in the month, but the weather becomes more changeable and many seasonal hotels, tavernas and boat trips wind down as the month goes on.
Poros Weather by Month
