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Monthly climate in Ydra, Greece

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ydra features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 12 °C (54 °F) and 27 °C (81 °F) through the year, but rarely can drop to 4 °C (39 °F) or can rise to as high as 32 °C (89 °F). The average annual precipitation amounts to about 342 mm (13.5 inches) and receives 48 rainy days on the 1 mm (0.04 inches) threshold annually. Ydra enjoys an average of 3975 hours of sunshine throughout the year, and daylight varies from 9 hours 37 minutes to 14 hours 40 minutes per day.

Monthly average temperatures in Ydra, Greece

The warmest months in Ydra are July, August and September, with daily mean temperatures ranging from 25 to 27 °C (77 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 12 to 14 °C (54 - 57 °F) throughout the day. On average each year, Ydra experiences 80 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ydra. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(69°F)		18°C
(64°F)		18°C
(65°F)		22°C
(71°F)		25°C
(77°F)		29°C
(84°F)		32°C
(89°F)		32°C
(89°F)		30°C
(86°F)		27°C
(81°F)		23°C
(74°F)		21°C
(69°F)
Mean maximum17°C
(63°F)		17°C
(62°F)		17°C
(64°F)		20°C
(69°F)		24°C
(76°F)		27°C
(81°F)		30°C
(87°F)		30°C
(87°F)		29°C
(84°F)		25°C
(77°F)		22°C
(72°F)		19°C
(67°F)
Average high13°C
(56°F)		14°C
(58°F)		15°C
(59°F)		17°C
(63°F)		21°C
(70°F)		24°C
(76°F)		28°C
(82°F)		28°C
(83°F)		26°C
(79°F)		22°C
(73°F)		19°C
(67°F)		16°C
(61°F)
Daily mean12°C
(54°F)		13°C
(56°F)		14°C
(57°F)		16°C
(61°F)		20°C
(67°F)		23°C
(74°F)		26°C
(80°F)		27°C
(81°F)		25°C
(77°F)		21°C
(71°F)		18°C
(65°F)		15°C
(59°F)
Average low11°C
(52°F)		12°C
(54°F)		13°C
(55°F)		15°C
(59°F)		19°C
(66°F)		23°C
(73°F)		25°C
(78°F)		26°C
(79°F)		24°C
(75°F)		20°C
(69°F)		17°C
(63°F)		14°C
(57°F)
Mean minimum6°C
(43°F)		8°C
(47°F)		9°C
(49°F)		11°C
(53°F)		16°C
(61°F)		20°C
(68°F)		23°C
(74°F)		24°C
(75°F)		20°C
(68°F)		17°C
(64°F)		14°C
(57°F)		10°C
(50°F)
Minimum4°C
(39°F)		6°C
(42°F)		6°C
(43°F)		10°C
(51°F)		15°C
(59°F)		18°C
(65°F)		22°C
(72°F)		23°C
(74°F)		18°C
(65°F)		16°C
(61°F)		12°C
(54°F)		8°C
(47°F)

Compare climate in Ydra with other places

Compare temperature, precipitation, sunshine, UV index in Ydra, Greece with other places around the world.

Monthly average precipitation in Ydra, Greece

Ydra usually has the most precipitation in January, February and December, with an average of 8 rainy days and 56 mm (2.2 inches) of precipitation per month. The driest months in Ydra are June, July and August. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ydra. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)56 (2.2)50 (2.0)34 (1.3)21 (0.8)10 (0.4)6 (0.2)1 (0.0)5 (0.2)25 (1.0)26 (1.0)47 (1.9)61 (2.4)
Average precipitation days (≥ 1 mm)8743110024810

Monthly sunshine hours in Ydra, Greece

The sunniest months in Ydra are May, June and July, when the sun shines an average of 13 hours 23 minutes a day. Least sunny months in Ydra: January, February and December receive an average of 8 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ydra. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours212259334347401410421394347321267257
Mean daily daylight hours9h 54m10h 48m11h 58m13h 10m14h 10m14h 40m14h 24m13h 31m12h 22m11h 11m10h 9m9h 37m

Solar UV radiation in Ydra, Greece

Ydra experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Ydra UV Index data.

Average daily maximum UV levels by month for Ydra. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3578101010108743