Weather in Halkidiki in October

How October compares

October is the 6th warmest month of the year in Halkidiki and ranks 113th of 134 destinations we compare for October - see where else is hot in October. Within Greece it is 40th of 44 (Greece in October). Against London's average high of 14.6°C in October, Halkidiki is 5.4°C warmer by day and 7.1°C warmer at night.

Daytime and night-time in October

The typical October day in Halkidiki peaks at 20.0°C, but that is an average: the warmest 10% of days reach 23.6°C or more. Roughly 1 in 20 days top 25°C and 1 in 1000 pass 30°C. Nights average 15.5°C; one night in ten drops to 11.7°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest October day here reached 32.7°C (1991-10-01) and the coldest night 5.6°C (1997-10-30).

Rain in October

Some rain (4-8 rainy days): about 8 days with 1 mm or more, 56 mm in total. Year to year it varies a lot - the wettest October was 2010 with 221 mm, the driest 2001 with 2 mm. Humidity averages 74%.

Sea temperature in October

The sea averages 21.3°C - bracing (18-22°c). Depending on the year it ranges from 20.4°C to 22.6°C. For the warmest sea here, come in August (26.7°C).

Sunshine and daylight

Around 5.4 hours of sunshine a day (estimated from cloud cover), 10.9 hours of daylight: the sun rises about 07:38 and sets about 18:48 local time in mid-October. Average cloud cover is 50%.

Is October a good time to visit Halkidiki?

October is not the strongest month here: warm days. The best months for Halkidiki on our scoring are August, July, June; months averaging 25°C or more: Jun, Jul, Aug.

Warm afternoons, but pack for cooler evenings

Expect weather that is comfortable for spending time outside without the intensity of summer heat. A light top may be enough during a sunny afternoon, but trousers and a jumper will earn their place in your bag once the sun goes down. Only 5% of days reach 25°C, so do not plan around hot afternoons or pack exclusively for the beach. At the cooler end, nights can fall to 11.7°C or below. A jacket is sensible for sitting outside in the evening, especially if you tend to feel the cold. October suits travellers who prefer mild conditions to sustained heat.

Leave room for rain in your plans

With about 8 rainy days, October needs a more flexible approach than a holiday planned entirely outdoors. Bring a light waterproof and shoes you are happy to wear in wet weather, rather than relying only on sandals. Rain need not define the trip, but it is a real possibility to allow for when deciding what to pack and how tightly to schedule each day. There are about 5.4 hours of sunshine within 10.9 hours of daylight, so daylight does not mean continuous sun. Make use of brighter spells for time outside and keep your plans easy to rearrange when conditions change.

Treat swimming as an option, not the whole holiday

The sea is the main catch if you picture a beach-focused break. Its October average is bracing, and the year-to-year range of 20°C to 23°C means your experience can vary. If you enjoy cooler water, swimming may still be part of the trip; if you need warm water to relax, it is a weaker reason to book. Keep something dry and warm ready for afterwards, as mild air temperatures will not always make getting out feel comfortable. For travellers happy to combine occasional dips with time outdoors in lighter clothing, October is a reasonable compromise. For a holiday centred on warmth, favour summer.