Syros island belongs to the group of the Cyclades cluster and Hermoupolis (capital of the island), is the seat of the South Aegean Region and the seat of the Cyclades archipelagos.
The island is 79 nautical miles from the port of Piraeus, 58 nautical miles from the port of Rafina and 51 nautical miles away from the port of Lavrio.
It has the advantage of being located in the center of the Cyclades cluster, having Andros to the north, Tinos to the northeast, Mykonos to the east, Paros and Naxos to the southeast, Sifnos to the south-southwest, Serifos to the southwest, Kithnos and Kea to the west and northwest.
The surface area of all the islands of the Cyclades is 2.571,7 km2, while the area of Syros in 101,9 km2, only 3.96% of the Cyclades cluster, having a maximum length of 16,9 km and a maximum width of 10,5 km.
The natural harbor of Syros is recorded as the biggest advantage of the island, because among others, it is characterized as extremely safe.
The island's climate is classified as mild, with little rainfall during the winter months.
The main climatic data of the last two decades are as follows:
Average annual rainfall: 350 mm
Average time rainfall: 33 days
Average yearly temperature: 18,7 ° C.
The variation of the air temperature does not exhibit high volatility, while Syros from a bioclimatic point of view belongs to the intense thermo-Mediterranean type and the semiarid bioclimatic level with warm winter.
It should be noted that the brightness in Syros is one of the largest in the world, as the sun is around 3,000 hours per year.