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Monthly climate in Ierissos, Greece

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ierissos features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 8 °C (46 °F) and 27 °C (81 °F) through the year, but rarely can drop to -5 °C (24 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 721 mm (28.4 inches) and receives 88 rainy days on the 1 mm (0.04 inches) threshold annually. Ierissos enjoys an average of 3871 hours of sunshine throughout the year, and daylight varies from 9 hours 19 minutes to 14 hours 59 minutes per day.

Monthly average temperatures in Ierissos, Greece

The warmest months in Ierissos are July, August and September, with daily mean temperatures ranging from 24 to 27 °C (75 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 10 °C (46 - 51 °F) throughout the day. On average each year, Ierissos experiences 87 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ierissos. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum18°C
(65°F)		17°C
(63°F)		20°C
(68°F)		25°C
(76°F)		27°C
(81°F)		32°C
(90°F)		34°C
(93°F)		34°C
(94°F)		31°C
(89°F)		26°C
(80°F)		22°C
(71°F)		19°C
(66°F)
Mean maximum15°C
(59°F)		16°C
(61°F)		18°C
(65°F)		21°C
(69°F)		26°C
(79°F)		30°C
(85°F)		32°C
(90°F)		33°C
(92°F)		30°C
(86°F)		24°C
(75°F)		20°C
(68°F)		17°C
(63°F)
Average high10°C
(50°F)		12°C
(54°F)		13°C
(56°F)		17°C
(62°F)		22°C
(71°F)		26°C
(79°F)		29°C
(84°F)		30°C
(86°F)		26°C
(79°F)		21°C
(70°F)		16°C
(61°F)		12°C
(55°F)
Daily mean8°C
(46°F)		10°C
(49°F)		11°C
(52°F)		14°C
(57°F)		19°C
(67°F)		23°C
(74°F)		26°C
(80°F)		27°C
(81°F)		24°C
(75°F)		18°C
(65°F)		14°C
(58°F)		10°C
(51°F)
Average low5°C
(42°F)		7°C
(45°F)		8°C
(47°F)		11°C
(53°F)		16°C
(62°F)		21°C
(70°F)		24°C
(75°F)		24°C
(76°F)		21°C
(70°F)		16°C
(60°F)		12°C
(54°F)		8°C
(47°F)
Mean minimum-0°C
(32°F)		2°C
(36°F)		4°C
(40°F)		7°C
(46°F)		13°C
(56°F)		17°C
(63°F)		21°C
(70°F)		22°C
(72°F)		16°C
(61°F)		11°C
(53°F)		8°C
(47°F)		4°C
(40°F)
Minimum-5°C
(24°F)		1°C
(33°F)		1°C
(35°F)		5°C
(42°F)		12°C
(53°F)		15°C
(59°F)		20°C
(68°F)		20°C
(68°F)		13°C
(56°F)		10°C
(50°F)		6°C
(43°F)		1°C
(34°F)

Compare climate in Ierissos with other places

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

Monthly average precipitation in Ierissos, Greece

Ierissos usually has the most precipitation in October, November and December, with an average of 10 rainy days and 103 mm (4.0 inches) of precipitation per month. The driest months in Ierissos are July, August and September. On average, 21 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ierissos. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)82 (3.2)50 (2.0)78 (3.1)47 (1.8)33 (1.3)60 (2.3)27 (1.1)11 (0.4)26 (1.0)83 (3.3)108 (4.3)117 (4.6)
Average precipitation days (≥ 1 mm)1071176743361113

Monthly sunshine hours in Ierissos, Greece

The sunniest months in Ierissos are May, June and July, when the sun shines an average of 13 hours 30 minutes a day. Least sunny months in Ierissos: January, February and December receive an average of 7 hours 20 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ierissos. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours189243309346403411426398349304251235
Mean daily daylight hours9h 38m10h 39m11h 57m13h 17m14h 25m14h 59m14h 41m13h 41m12h 25m11h 5m9h 55m9h 19m

Solar UV radiation in Ierissos, Greece

Ierissos experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / 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 Ierissos UV Index data.

Average daily maximum UV levels by month for Ierissos. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3468910998642