Weather in Alonissos in August
August in Alonissos means high-summer conditions: hot and almost completely dry. Expect highs of about 29°C / 83°F and overnight lows near 22°C / 72°F. Nights stay warm, so air-conditioning helps. Sea temperatures average around 26°C / 79°F, warm enough for long swims. Rain is rare, with only 1 wet day in an average August. The meltemi, the northerly wind of the Aegean, blows on many days and takes the edge off the heat, though it can also whip up dust and rough seas. Alonissos is covered in pine forest that runs down to quiet coves, and it sits within a national marine park. You get about 13½ hours of daylight a day, leaving long, light evenings. Bring loose, light clothing, a wide-brimmed hat, strong sunscreen and sunglasses. When the wind picks up, a light windproof layer is handy for evenings by the water. Get out early and late, and save the hottest hours of the afternoon for the water.
Swimming in Alonissos in August
Swimming is excellent in Alonissos in August, with the sea averaging around 26°C / 78°F. Of the best swimming months, July and August, this is the warmest. Good spots include Agios Dimitrios and Milia. When the meltemi blows, north-facing beaches get rough, so head for sheltered bays on the south side. Arrive early to get space on the busiest beaches. No wetsuit needed.
Crowds & Prices in Alonissos in August
Expect Alonissos to be at its busiest in August. Accommodation is at its most expensive, and the best rooms go early. Around 15 August, when Greek families travel, ferries and rooms sell out. Early mornings and late afternoons are the quietest times at popular sights. Staying slightly outside the main town usually means better value and more space. Book accommodation and ferries months ahead.
What's Open in Alonissos in August
In August, ferries from Volos and Agios Konstantinos to Alonissos run often, with extra fast boats in the peak season. It's the full season, so hotels, restaurants, beach bars and excursions are all running. Archaeological sites and museums are on their longer summer hours. Shops in tourist areas often stay open into the evening. Opening hours are long, with many tavernas serving until late.
Festivals & Holidays in Alonissos in August
Many Greeks return to their home villages in August, and panigyria, village feasts with live music and dancing, run late into the night. 15 August, the Dormition of the Virgin Mary, is the biggest summer holiday, with church services and village festivals everywhere. In Alonissos, these occasions are celebrated much as they are across the rest of Greece. Summer evenings are the time for festivals, open-air cinemas and late dinners outdoors.
Is August a Good Time to Visit Alonissos?
August is a great time to visit Alonissos if you want long beach days, a warm sea and the island at its liveliest. Expect highs of around 29°C / 83°F and lows near 22°C / 72°F. It suits families on school holidays and anyone who loves a busy summer atmosphere. It's less ideal if you dislike crowds or high prices. For a calmer trip with the sea still warm, consider June, September or October instead.
Frequently Asked Questions
What time does the sun set in Alonissos in August?
Through August, sunset in Alonissos moves from around 8:40 pm to around 8:00 pm in Greek local time, as the evenings get shorter. In mid-August, expect it at around 8:20 pm. The long evenings leave plenty of daylight after the heat of the day.
Is it windy in Alonissos in August?
Often, yes. August is the height of the meltemi, a strong, dry northerly wind that blows across the Aegean on many summer days, sometimes for several days in a row. It keeps the heat bearable, but it can make exposed beaches rough and delay fast ferries and small boats. South-facing beaches are usually more sheltered.
Can I visit the National Marine Park of Alonissos in August?
Yes. Boat trips to the National Marine Park of Alonissos run regularly in August, but they're busy, so book ahead or take the first departure of the day. Trips can still be cancelled on very windy days. Boat trips from Patitiri explore the park's islets, and you may spot dolphins.
Do I need a car on Alonissos in August?
Not necessarily. Buses link Patitiri with the main beaches and villages in August, 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 August or September better for visiting Alonissos?
September, for most travelers. The sea is still warm, the crowds thin out after the first week or two and prices drop, while most businesses stay open. August is the choice only if you want the island at its busiest and liveliest.
Alonissos Weather by Month
