Weather in Kea in September
September is late summer in Kea: hot and mostly dry. Expect highs of about 29°C / 84°F and overnight lows near 20°C / 68°F. Rain is rare, with only 2 wet days in an average September. In the water, expect around 24°C / 75°F, warm enough for long swims. The first autumn storms can arrive, usually as short, sharp showers between long spells of sunshine. Kea is the closest Cycladic island to Athens, and its hills are greener than most, dotted with oak trees. Days bring around 12½ hours of daylight. 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. The light is softer than in summer, which makes it a lovely time for photos and walks. Get out early and late, and save the hottest hours of the afternoon for the water.
Swimming in Kea in September
Expect the sea around Kea to be about 24°C / 75°F in September, comfortable for long swims. The best swimming runs through July, August and September, and the water is still close to its August peak. When the meltemi blows, north-facing beaches get rough, so head for sheltered bays on the south side. Beach bars and sunbeds are open, with more space than in July and August. You won't need a wetsuit.
Crowds & Prices in Kea in September
September is a shoulder month in Kea, busy enough to feel lively but well below the summer peak. Hotel rates sit between the winter lows and the summer peak. Go midweek if you can, as weekends bring visitors from Athens. Weekdays are calmer than weekends at the most popular spots. You can often book at short notice, except around holidays.
What's Open in Kea in September
Ferries to Kea from Lavrio run at full summer frequency in September, but they sell out, so book ahead. 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. Boat trips and excursions run regularly, weather permitting. Opening hours are long, with many tavernas serving until late.
Festivals & Holidays in Kea in September
Late-summer village festivals continue into September, and the grape harvest gets underway. September is harvest time, with grapes picked for wine in many areas and village feasts on 8 September for the Nativity of the Virgin. In Kea, 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 Kea?
Yes, September is an excellent choice for Kea. Expect highs of around 29°C / 84°F, lows near 20°C / 68°F and rain on around 2 days. You get warm water and summer weather with fewer people and better prices than in high season. It's ideal for beach days, swimming and a quick getaway from Athens. If you want the absolute peak of summer life, July and August are busier, but most travelers will prefer September.
Frequently Asked Questions
What time does the sun set in Kea in September?
Sunset in Kea is at around 7:55 pm at the start of September, around 7:35 pm in mid-September and around 7:10 pm by the end of the month, in Greek local time. Evenings cool quickly after sunset, so bring a layer.
Is it still hot in Kea in September?
Yes, especially in the first half of the month. September usually stays warm and sunny, and the sea is still warm from the summer. The meltemi tends to ease, nights become more comfortable, and the first autumn showers sometimes arrive late in the month, although rain is still uncommon.
Is Kea a good weekend trip from Athens in September?
Yes, but it's popular. Kea is a favorite summer escape for Athenians, so weekend ferries from Lavrio and accommodation fill up fast in September. Book early, or go midweek for a calmer trip.
Do I need a car on Kea in September?
It's the best way to explore. Kea is spread out, and buses mainly link the port with the busiest beaches and villages, so a hire car lets you reach quieter corners. In September, book early, as rental cars can sell out.
Is September or October better for visiting Kea?
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.
Kea Weather by Month
