
In numbers
0.080km²
Area
15m
Highest point
0
People
25°C
Warmest sea
August
When to go to St. Cyricus Island
Best for the beach from July to August.
The sea is warmest in August (25 °C) and coolest in February (7 °C). Comfortable swimming (21 °C or more): from June to September.
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
Island in Bulgaria
St. Cyricus Island is an island in Bulgaria. It covers 0.080 km². Its highest point rises to 15 m. Nobody lives on it.
Getting there
- Burgas Airport (BOJ)nearest airport with scheduled flights · 22 km in a straight lineCar hire at BOJ airport (Burgas)Discover Cars · Affiliate link↗
- From July to Augustbest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
On the island
What you find on St. Cyricus Island.
- 3beaches
- 3viewpoints
- 3marinasMarina Sozopol
- 2castles and fortsSouthern tower, Southern ancient city wall
- 5ruins and archaeological sitesNorthern city gate and 4 more
- 1waymarked walking routesCamino Bulgaria
- 4hotels, guesthouses and apartments
- 51restaurants, cafés and bars
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
The shape of the land.
On average the island stands 9 m above the sea. 100 % of it is below 200 m.
- 100 %0–50 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Towns on the island
- Sozopol4,500 people
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 6 | 8 | 12 | 16 | 22 | 27 | 30 | 30 | 25 | 19 | 13 | 8 |
| Night low (°C) | -1 | 0 | 3 | 6 | 12 | 17 | 20 | 20 | 16 | 11 | 6 | 1 |
| Sea (°C) | 8 | 7 | 7 | 10 | 16 | 21 | 24 | 25 | 23 | 19 | 14 | 10 |
| Rain (mm) | 64 | 47 | 45 | 34 | 45 | 49 | 47 | 26 | 52 | 68 | 46 | 63 |
| Wet days | 8 | 7 | 8 | 8 | 10 | 9 | 7 | 5 | 7 | 7 | 7 | 9 |
| Sun h/day | 2.6 | 3.4 | 4.7 | 6.8 | 8.6 | 9.8 | 10.4 | 9.9 | 7.1 | 4.7 | 3.0 | 2.4 |
| Wind (km/h) | 15 | 16 | 14 | 12 | 10 | 10 | 11 | 12 | 13 | 13 | 14 | 15 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +2.0 | +1.6 | +1.7 | +0.3 | −0.6 | −0.7 | +0.5 | +0.4 | +1.7 | +2.6 | +1.9 | +2.0 |
| 2021 | +2.0 | +1.9 | +0.8 | −0.3 | +0.2 | −0.9 | +0.6 | +0.9 | +0.5 | −0.8 | +0.4 | +1.6 |
| 2022 | +1.3 | +0.5 | −1.0 | −0.5 | −0.4 | +0.1 | +0.4 | +0.5 | +0.7 | ±0.0 | +1.9 | +1.6 |
| 2023 | +2.4 | +0.6 | +1.2 | +0.5 | −1.1 | +0.4 | +0.7 | ±0.0 | +1.7 | +2.8 | +2.0 | +0.8 |
| 2024 | +1.6 | +1.2 | +1.7 | +4.0 | +0.1 | +1.9 | +2.2 | +1.8 | +1.4 | +1.2 | +1.3 | +1.8 |
| 2025 | +2.0 | +0.9 | +0.6 | +0.3 | −0.8 | +0.7 | +1.1 | +0.7 | +1.4 | +1.1 | +2.6 | +2.9 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.
Nearby
More islands nearby.
St. Ivan Island
St. Anastasia Island
Marmara Island
Büyükada
Burgaz Adası
Avşa
Heybeliada
İmralıAbout these numbers
| Names, area, population | Wikidata (Q2297996) · CC0 |
|---|---|
| Outline | Natural Earth · public domain |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.


