Best time to visit Hydra
The best time to visit Hydra for a beach holiday is during summer, from early-June to mid-September. The peak summer months of July and August are very hot, with an average high of 33°C (91°F).
For excursions and walking, the best time to visit is during spring and autumn, especially mid-April through May, and from early-September to mid-October, and so escape the intense heat of July and August.
May, September and October also offer reasonable hotel prices and generally less crowds.
Hydra weather
Hydra enjoys a Mediterranean climate with hot, sunny summers and moderately wet, mild winters. Hydra is considered a year-round destination.
Hydra, or Ydra or Idra, lies in the Aegean Sea between the Myrtoan Sea and the Argolic Gulf. It is separated from the Peloponnese by a narrow strip of water.
What is the best month to visit Hydra?
July and August are the best months to visit Hydra if you enjoy hot and sunny weather with little or no rainfall.
However, the months of May through October enjoy good weather and are all good for a range of outdoor activities.
Which is the hottest month in Hydra?
The hottest month in Hydra is usually July, with an average daily high temperature of 33°C (91°F), with high heat and humidity, and a low of 24°C (75°F).
On the warmest days of summer – July and August – the temperature can reach a high of 38°C (100°F)
The hot season lasts from mid-June to mid-September, with an average daily high temperature above 30°C (86°F).
Which is the sunniest month in Hydra?
The sunniest month of the year in Hydra is usually July with an average of 12 hours of sunshine per day; that's around 81% of daylight hours.
The months of June through September are the sunniest of the year.
When is the sea warmest in Hydra?
The sea is usually at its warmest in Hydra in August when the water temperature reaches 26°C (79°F), which is warm for swimming.
The sea temperature is comfortable for swimming from July through to September.
Which is the coldest month in Hydra?
The coldest month in Hydra is January, with an average high temperature of 13°C (55°F) and an average low temperature of 6°C (42°F).
The cool winter season lasts from late-November through March, with an average daily high temperature below 17°C (62°F).
Which month has the most rain in Hydra?
December has the greatest number of wet days in Hydra, with 95mm (3in) of rainfall on average distributed across 12 days.
The wet season lasts from mid-October to mid-April, with a greater than 16% chance of a given day being a wet day.
The drier season lasts from mid-April to mid-October; the months with the least rainfall in Hydra are June, July and August.
Which is the windiest month in Hydra?
The windiest month of the year in Hydra is January, with an average hourly wind speed of 21 kilometres per hour (13 mph; 11 knots).
The windy part of the year lasts from early-October to late-March, with average wind speeds of more than 17 kilometres per hour (10.6 mph; 9 knots).
The less-windy time of year lasts from late-March through to early-October. The calmest month of the year in Hydra is June, with an average hourly wind speed of 13 kilometres per hour (8 mph; 7 knots).
The predominant average hourly wind direction in Hydra is from the north throughout the year.
Hydra Weather Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average high temperature (°C) | |||||||||||
| 13 | 14 | 16 | 20 | 25 | 30 | 33 | 33 | 29 | 23 | 18 | 14 |
| Average low temperature (°C) | |||||||||||
| 6 | 7 | 8 | 11 | 16 | 21 | 24 | 23 | 20 | 16 | 11 | 8 |
| Average daily sunshine (hrs) | |||||||||||
| 4 | 5 | 6 | 8 | 10 | 11 | 12 | 12 | 10 | 7 | 5 | 4 |
| Average daily daylight (hrs) | |||||||||||
| 10 | 11 | 12 | 13 | 14 | 15 | 14 | 13 | 12 | 11 | 10 | 9 |
| Comfort level – heat | |||||||||||
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| Average relative humidity (%) | |||||||||||
| 69 | 67 | 65 | 60 | 58 | 52 | 46 | 46 | 54 | 63 | 69 | 70 |
| UV Index (max) | |||||||||||
| 2 | 3 | 5 | 6 | 8 | 9 | 10 | 9 | 7 | 5 | 3 | 2 |
| Average days of rainfall (≥1mm) | |||||||||||
| 12 | 10 | 8 | 5 | 4 | 2 | 1 | 1 | 3 | 6 | 9 | 12 |
| Average monthly rainfall (mm) | |||||||||||
| 75 | 60 | 55 | 35 | 20 | 10 | 5 | 5 | 10 | 60 | 75 | 95 |
| Average wind speed (km/h) | |||||||||||
| 21 | 21 | 18 | 15 | 13 | 13 | 15 | 16 | 16 | 18 | 20 | 21 |
| Average sea temperature (°C) | |||||||||||
| 15 | 14 | 14 | 16 | 18 | 22 | 25 | 26 | 25 | 22 | 19 | 17 |
| Hydra, Greece | |||||||||||
Holiday seasons
High season: July and August, when hotel and restaurant prices sky-rocket.
Mid season: From March to June and from September to October – the temperature is cooler, hotel prices are more reasonable and the crowds non-existent.
Note: The winter off-season, from November through February, is generally quiet everywhere; many hotels, restaurants and bars close down and the beaches are deserted. Ferry and air services are dramatically reduced.
Source: Meteorological data for Hydra is based on weather statistics gathered during 1992 to 2021 by the Hellenic National Meteorological Service (HNMS) from the nearest weather station: Athens Eleftherios Venizelos International Airport (ATH), located about 69km (42mi) northeast of Hydra. This station is deemed sufficiently nearby to be relied upon as the primary source for historical climate records, although weather conditions in Hydra may vary slightly.
Additional weather data sourced from the World Meteorological Organization (WMO) and the United States National Oceanic and Atmospheric Administration (NOAA).
Advice on the best time to visit a particular destination is based on average local weather statistics, when the weather conditions are generally better than at other times of the year. We consider high and low temperatures, risk of rain (and thunderstorms, etc.), amount of sunshine and sea temperature. For general outdoor activities we favour clear, rainless days with a temperature range between 18°C (64°F) and 27°C (80°F); and for hot-weather activities we favour clear, rainless days with a temperature range between 24°C (75°F) and 32°C (89°F). Often, the best times to visit correspond to high season and therefore involve higher prices.
Latest update: Best time to visit Hydra: 7 June, 2024
Disclaimer: The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data and conditions at any given location and time are unpredictable and variable. We assume no responsibility and can not be held legally responsible for any decisions made on the basis of the information presented on this site.
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