Weather in Therasia in October
In Therasia, October brings autumn weather that is pleasantly warm and mostly dry. Temperatures typically peak at around 23°C / 73°F in the afternoon and fall to about 18°C / 65°F at night. Rain is rare, with only 2 wet days in an average October. Sea temperatures average around 22°C / 72°F, comfortable for swimming. The first autumn storms can arrive, usually as short, sharp showers between long spells of sunshine. Therasia is Santorini's quiet sister, sitting on the western edge of the same volcanic caldera. You get about 11 hours of daylight a day. Bring layers, with short sleeves for the day and a sweater or light jacket for later. The weather can change from one week to the next, so pack for both warm and cool days. Mornings and evenings get noticeably cooler as the month goes on. It's pleasant to be outside from morning to evening, with sun protection at midday.
Swimming in Therasia in October
Swimming is excellent in Therasia in October, with the sea averaging around 22°C / 72°F. The water is cooling after the warmest months of July, August and September, but it's still pleasant. Beach facilities are only partly open at this time of year. The sea is usually at its calmest early in the morning. Many coves are rocky or pebbly, so water shoes are useful. You won't need a wetsuit.
Crowds & Prices in Therasia in October
Crowds in Therasia are moderate in October, with plenty of space at the main sights and beaches. Hotel rates sit between the winter lows and the summer peak. 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. Booking a few weeks ahead is usually enough.
What's Open in Therasia in October
Ferry services between Santorini and Therasia are being cut back in October. Businesses begin closing through October, so the choice shrinks towards the end of the month. Opening hours are long, with many tavernas serving until late. Shops in tourist areas often stay open into the evening. Boat trips and excursions run regularly, weather permitting. Plan ahead for public holidays, when many businesses close.
Festivals & Holidays in Therasia in October
28 October, Ochi Day, is a national holiday with parades marking Greece's refusal to surrender in 1940. October brings the start of the olive harvest in many areas, and in some regions, the first tsipouro or raki of the season. In Therasia, these occasions are celebrated much as they are across the rest of Greece. As the season quietens, local life takes over again, with markets and harvest gatherings.
Is October a Good Time to Visit Therasia?
Yes, October is an excellent choice for Therasia. In numbers: highs of about 23°C / 73°F, lows of 18°C / 65°F and rain on around 2 days in a typical October. 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 day-tripping from Santorini. If you want the absolute peak of summer life, July and August are busier, but most travelers will prefer October.
Frequently Asked Questions
What time does the sun set in Therasia in October?
In early October, the sun sets in Therasia at around 7:05 pm, and around 6:45 pm by mid-month. Clocks go back an hour on the last Sunday of October, so by the end of the month sunset is around 5:25 pm. All times are Greek local time. Evenings cool quickly after sunset, so bring a layer.
Does it rain in Therasia in October?
It can. October is when the first proper autumn rains arrive, usually as short showers or the occasional thunderstorm between warm, sunny days. Early October often feels like a gentle extension of summer, while the end of the month is noticeably cooler and more changeable. Bring a light jacket for the evenings.
Can I take a day trip to Therasia in October?
Yes. Local boats connect Therasia with Santorini, and some caldera boat tours stop there during the season. It's a glimpse of Santorini's quieter side.
Do I need a car on Therasia in October?
No. Therasia is small enough to explore on foot, and the distances between the harbor, village and beaches are short. In October, some beaches may also be served by small boats or a seasonal minibus, and it's worth bringing a hat for the walks.
Is October or November better for visiting Therasia?
October, clearly. The start of the month often still feels like late summer, with a warm sea and open tavernas. By November the season is over on most islands: many businesses have closed, ferries run less often and the weather is more unsettled.



