Santorini Sea Temperature

This page provides detailed information about the water temperature in Santorini, Greece. All countries, cities and resorts on the coast. The range of sea temperatures for today. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Sea Temperature

15.6°C

minimal

16.1°C

average

16.3°C

maximum

Graph of Sea Temperature Changes in Santorini Over the Last 60 Days

Water temperature in the Santorini by month

Month	Minimum	Maximum
January	16°C	19°C
February	15°C	18°C
March	15°C	18°C
April	15°C	20°C
May	16°C	22°C
June	18°C	26°C
July	21°C	27°C
August	22°C	27°C
September	21°C	27°C
October	19°C	25°C
November	18°C	23°C
December	16°C	21°C

The Warmest Places on the Seaside in Santorini Today

16°C

Oia

16°C

Panagia Kalou

16°C

Kamari

16°C

Akrotiri

16°C

Perissa

16°C

Imerovigli

List of All Coastal Cities in Santorini

Seas and Oceans that Border Santorini

Sea of Crete

Greece: List of Regions

Water Temperature in Santorini: General Trends and Swimming Opportunities

Original name of the region: Σαντορίνη

Santorini, located in the southern Aegean Sea, offers a stunning coastline with waters that are as inviting as its breathtaking views. During the summer months (June to September), sea temperatures typically range between 24–26°C (75–79°F), creating perfect conditions for swimming and relaxing by the famous volcanic beaches like Kamari, Perissa, and Red Beach. The warm waters, combined with the island's unique black and red sands, make it a memorable experience for visitors.

In spring (April to May) and autumn (October to November), the sea remains moderately warm, averaging around 20–23°C (68–73°F). These seasons are ideal for travelers seeking a quieter atmosphere, as the beaches are less crowded, and the waters are still comfortable for swimming or snorkeling.

During the winter months (December to March), the sea cools to around 16–18°C (61–64°F). While not as warm, these temperatures are still suitable for adventurous swimmers or those who enjoy the serene beauty of Santorini’s coastline in the off-season. The volcanic nature of the island also means some areas have thermal springs, offering a unique opportunity for warm-water bathing year-round.

Geographical Location of Santorini

Frequently Asked Questions About Santorini and its Water Temperatures

What is the current sea temperature on the coast of Santorini in Greece?

The sea temperature today on the coast of Santorini ranges from 60°F (15.6°C) in Monolithos to 61°F (16.3°C) in Oia.

When does the sea in Santorini in Greece reach a comfortable swimming temperature?

In Santorini (Greece) the sea temperature can reach 70°F (21°C) in June, July, August, September, October, and November. It should be noted that the mentioned values apply to the warmest point of the region. In other areas of Santorini, the values may vary.

What are the most popular seaside resorts in Santorini?

The most popular places on the coast of Santorini (Greece), based on our visitors' interest in the water temperature, are cities Perissa, Kamari, Oia, Thera, and Monolithos.

Which seas and oceans does the Santorini have access to?

Santorini (Greece) has access only to the Sea of Crete.