Beach
Gialós Karterádou
South Aegean · Greece · Mediterranean Sea
36.4196, 25.4722 · Mesariá, 3 km
- 24°Sea · August
- 27°High · August
- 12.6 hSunshine · July
Your month at the beach
Gialós Karterádou in January
- 15°CAir, daytime high13°C at night
- 16°CSea temperature
- 4.2 hSunshine a day
- 13 daysRainy days in the month96 mm in total
- 26 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in February
- 15°CAir, daytime high13°C at night
- 16°CSea temperature
- 4.9 hSunshine a day
- 11 daysRainy days in the month81 mm in total
- 26 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in March
- 16°CAir, daytime high14°C at night
- 16°CSea temperature
- 7.1 hSunshine a day
- 8 daysRainy days in the month44 mm in total
- 24 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in April
- 18°CAir, daytime high15°C at night
- 17°CSea temperature
- 8.9 hSunshine a day
- 5 daysRainy days in the month26 mm in total
- 21 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in May
- 21°CAir, daytime high18°C at night
- 19°CSea temperature
- 10.6 hSunshine a day
- 3 daysRainy days in the month19 mm in total
- 18 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in June
- 25°CAir, daytime high22°C at night
- 22°CSea temperature
- 12.5 hSunshine a day
- 1 dayRainy days in the month5 mm in total
- 19 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in July
- 27°CAir, daytime high24°C at night
- 24°CSea temperature
- 12.6 hSunshine a day
- 0 daysRainy days in the month2 mm in total
- 23 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in August
- 27°CAir, daytime high24°C at night
- 24°CSea temperature
- 11.6 hSunshine a day
- 0 daysRainy days in the month2 mm in total
- 23 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in September
- 25°CAir, daytime high23°C at night
- 24°CSea temperature
- 9.8 hSunshine a day
- 2 daysRainy days in the month18 mm in total
- 21 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in October
- 22°CAir, daytime high20°C at night
- 22°CSea temperature
- 7.4 hSunshine a day
- 6 daysRainy days in the month44 mm in total
- 21 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in November
- 19°CAir, daytime high17°C at night
- 20°CSea temperature
- 5.5 hSunshine a day
- 9 daysRainy days in the month64 mm in total
- 22 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Gialós Karterádou in December
- 16°CAir, daytime high14°C at night
- 18°CSea temperature
- 3.9 hSunshine a day
- 13 daysRainy days in the month87 mm in total
- 25 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
The beach itself
- 229Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap Places to stay near Gialós Karterádou ↗
- 2 kmAirport: Santorini International Airport (JTR)In a straight line; by road it is further Car hire at Santorini International Airport (JTR) ↗
No reliable information yet on: bathing water quality, wheelchair access, lifeguards.
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.
January from 2020 to 2025
In January 2025 the sea averaged 18.0 °C — 1.6 °C above the 1991–2020 average.
1991–2020 average: 16.4 °C
1991–2020 average: 14.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
February from 2020 to 2025
In February 2025 the sea averaged 17.4 °C — 1.3 °C above the 1991–2020 average.
1991–2020 average: 16.1 °C
1991–2020 average: 14.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
March from 2020 to 2025
In March 2025 the sea averaged 17.0 °C — 0.8 °C above the 1991–2020 average.
1991–2020 average: 16.2 °C
1991–2020 average: 15.7 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
April from 2020 to 2025
In April 2025 the sea averaged 17.1 °C — about the same as the 1991–2020 average.
1991–2020 average: 16.8 °C
1991–2020 average: 17.5 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
May from 2020 to 2025
In May 2025 the sea averaged 19.3 °C — 0.5 °C above the 1991–2020 average.
1991–2020 average: 18.8 °C
1991–2020 average: 20.8 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
June from 2020 to 2025
In June 2025 the sea averaged 21.7 °C — about the same as the 1991–2020 average.
1991–2020 average: 22.0 °C
1991–2020 average: 24.7 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
July from 2020 to 2025
In July 2025 the sea averaged 24.4 °C — 0.8 °C above the 1991–2020 average.
1991–2020 average: 23.6 °C
1991–2020 average: 26.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
August from 2020 to 2025
In August 2025 the sea averaged 25.2 °C — 0.8 °C above the 1991–2020 average.
1991–2020 average: 24.4 °C
1991–2020 average: 27.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
September from 2020 to 2025
In September 2025 the sea averaged 24.2 °C — 0.3 °C above the 1991–2020 average.
1991–2020 average: 23.9 °C
1991–2020 average: 25.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
October from 2020 to 2025
In October 2025 the sea averaged 22.4 °C — 0.3 °C above the 1991–2020 average.
1991–2020 average: 22.1 °C
1991–2020 average: 22.0 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
November from 2020 to 2025
In November 2025 the sea averaged 21.1 °C — 1.4 °C above the 1991–2020 average.
1991–2020 average: 19.7 °C
1991–2020 average: 18.9 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
December from 2020 to 2025
In December 2025 the sea averaged 18.9 °C — 1.4 °C above the 1991–2020 average.
1991–2020 average: 17.5 °C
1991–2020 average: 16.0 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
When to go
1991–2020 averagesThe year at a glance
- Jan16°4 h96 mm
- Feb16°5 h81 mm
- Mar16°7 h44 mm
- Apr17°9 h26 mm
- May19°11 h19 mm
- Jun22°12 h5 mm
- Jul24°13 h2 mm
- Aug24°12 h2 mm
- Sep24°10 h18 mm
- Oct22°7 h44 mm
- Nov20°6 h64 mm
- Dec18°4 h87 mm
Each card is a month. The colour is the sea temperature, on the same scale as the map; in bold, the two best months for each.
Sea temperature
1991–2020 averagesClimate through the year
1991–2020 averagesRain
Sunshine
Sunshine hours are estimated from measured solar radiation, not observed directly.
Month by month
1991–2020 averagesEvery month at Gialós Karterádou: air, sea, rain and sunshine. Averages for 1991–2020.
| Month | High°C | Low°C | Sea°C | Rainmm | Rainy daysdays | Sunshineh/day | Windkm/h |
|---|---|---|---|---|---|---|---|
| January | 15 | 13 | 16 | 96 | 13 | 4.2 | 26 |
| February | 15 | 13 | 16 | 81 | 11 | 4.9 | 26 |
| March | 16 | 14 | 16 | 44 | 8 | 7.1 | 24 |
| April | 18 | 15 | 17 | 26 | 5 | 8.9 | 21 |
| May | 21 | 18 | 19 | 19 | 3 | 10.6 | 18 |
| June | 25 | 22 | 22 | 5 | 1 | 12.5 | 19 |
| July | 27 | 24 | 24 | 2 | 0 | 12.6 | 23 |
| Augustwarmest sea | 27 | 24 | 24 | 2 | 0 | 11.6 | 23 |
| September | 25 | 23 | 24 | 18 | 2 | 9.8 | 21 |
| October | 22 | 20 | 22 | 44 | 6 | 7.4 | 21 |
| November | 19 | 17 | 20 | 64 | 9 | 5.5 | 22 |
| December | 16 | 14 | 18 | 87 | 13 | 3.9 | 25 |
Swipe sideways to see the other columns.
Photos
Photos shared by their authors on Wikimedia Commons, with its colours adjusted.
Plan your trip
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.
About these numbers
Averages are for 1991–2020; the recent years (2020–2025) are what actually happened. Neither is today's weather.
| What | Where it comes from | Nearest measurement |
|---|---|---|
| Air, rain and sunshine | NASA POWER | 16 km away |
| Sea temperature | NOAA OISST v2.1, 1991–2020 | 10 km away |
| 2020–2025, month by month | NASA POWER · NOAA OISST v2.1 | 16 km away |
| Lifeguards and places to stay | OpenStreetMap | within 1–5 km |
| Nearest airport | OurAirports | straight-line distance |
| Image at the top | Sentinel-2 cloudless (EOX) | at this spot |