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Monthly climate in Koroni, Greece

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Koroni features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 12 °C (54 °F) and 27 °C (80 °F) through the year, but rarely can drop to 4 °C (40 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 785 mm (30.9 inches) and receives 76 rainy days on the 1 mm (0.04 inches) threshold annually. Koroni enjoys an average of 3989 hours of sunshine throughout the year, and daylight varies from 9 hours 40 minutes to 14 hours 37 minutes per day.

Monthly average temperatures in Koroni, Greece

The warmest months in Koroni are July, August and September, with daily mean temperatures ranging from 25 to 27 °C (76 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 12 to 13 °C (54 - 56 °F) throughout the day. On average each year, Koroni experiences 77 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 Koroni. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(68°F)		18°C
(64°F)		18°C
(65°F)		22°C
(72°F)		29°C
(84°F)		31°C
(88°F)		31°C
(88°F)		33°C
(92°F)		30°C
(85°F)		28°C
(83°F)		23°C
(74°F)		19°C
(67°F)
Mean maximum16°C
(62°F)		16°C
(62°F)		17°C
(64°F)		20°C
(68°F)		25°C
(77°F)		27°C
(81°F)		30°C
(86°F)		30°C
(87°F)		29°C
(84°F)		25°C
(78°F)		22°C
(72°F)		19°C
(66°F)
Average high13°C
(56°F)		14°C
(58°F)		15°C
(59°F)		17°C
(63°F)		20°C
(69°F)		24°C
(75°F)		27°C
(80°F)		28°C
(82°F)		26°C
(79°F)		22°C
(72°F)		19°C
(67°F)		16°C
(60°F)
Daily mean12°C
(54°F)		13°C
(56°F)		13°C
(56°F)		16°C
(61°F)		19°C
(67°F)		22°C
(72°F)		26°C
(78°F)		27°C
(80°F)		25°C
(76°F)		21°C
(70°F)		18°C
(65°F)		15°C
(59°F)
Average low11°C
(52°F)		12°C
(54°F)		12°C
(54°F)		15°C
(59°F)		18°C
(64°F)		21°C
(70°F)		24°C
(76°F)		26°C
(79°F)		23°C
(74°F)		20°C
(68°F)		17°C
(63°F)		14°C
(57°F)
Mean minimum6°C
(43°F)		8°C
(47°F)		9°C
(48°F)		12°C
(53°F)		15°C
(60°F)		18°C
(65°F)		22°C
(72°F)		24°C
(76°F)		20°C
(69°F)		17°C
(63°F)		14°C
(57°F)		10°C
(50°F)
Minimum4°C
(40°F)		5°C
(42°F)		6°C
(44°F)		10°C
(51°F)		13°C
(56°F)		17°C
(62°F)		21°C
(69°F)		23°C
(74°F)		19°C
(66°F)		15°C
(59°F)		12°C
(55°F)		8°C
(47°F)

Compare climate in Koroni with other places

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

Monthly average precipitation in Koroni, Greece

Koroni usually has the most precipitation in January, November and December, with an average of 13 rainy days and 155 mm (6.1 inches) of precipitation per month. The driest months in Koroni are May, July and August. On average, 7 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Koroni. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)160 (6.3)82 (3.2)57 (2.3)25 (1.0)13 (0.5)26 (1.0)5 (0.2)2 (0.1)40 (1.6)71 (2.8)148 (5.8)156 (6.1)
Average precipitation days (≥ 1 mm)139942200361216

Monthly sunshine hours in Koroni, Greece

The sunniest months in Koroni are May, June and July, when the sun shines an average of 13 hours 22 minutes a day. Least sunny months in Koroni: January, February and December receive an average of 8 hours 11 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Koroni. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours213271334349400409420391345319272260
Mean daily daylight hours9h 56m10h 50m11h 58m13h 8m14h 8m14h 37m14h 22m13h 29m12h 22m11h 12m10h 11m9h 40m

Solar UV radiation in Koroni, Greece

Koroni experiences the highest level of ultraviolet (UV) radiation in June, 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 Koroni UV Index data.

Average daily maximum UV levels by month for Koroni. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)356991010108743