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Monthly climate in Geraki, Greece

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Geraki features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 7 °C (44 °F) and 27 °C (81 °F) through the year, but rarely can drop to -6 °C (21 °F) or can rise to as high as 41 °C (106 °F). The average annual precipitation amounts to about 614 mm (24.2 inches) and receives 81 rainy days on the 1 mm (0.04 inches) threshold annually. Geraki enjoys an average of 3950 hours of sunshine throughout the year, and daylight varies from 9 hours 39 minutes to 14 hours 38 minutes per day.

Monthly average temperatures in Geraki, Greece

The warmest months in Geraki are June, July and August, with daily mean temperatures ranging from 23 to 27 °C (73 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (44 - 48 °F) throughout the day. On average each year, Geraki experiences 113 days above 25 °C (77.0 °F) and 13 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Geraki. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum22°C
(71°F)		22°C
(72°F)		25°C
(77°F)		27°C
(81°F)		37°C
(99°F)		36°C
(97°F)		41°C
(105°F)		41°C
(106°F)		36°C
(98°F)		31°C
(87°F)		26°C
(79°F)		19°C
(67°F)
Mean maximum17°C
(63°F)		18°C
(65°F)		22°C
(71°F)		25°C
(78°F)		32°C
(90°F)		33°C
(92°F)		38°C
(100°F)		37°C
(99°F)		34°C
(94°F)		27°C
(81°F)		23°C
(74°F)		18°C
(64°F)
Average high11°C
(53°F)		13°C
(57°F)		15°C
(60°F)		19°C
(67°F)		25°C
(77°F)		28°C
(83°F)		32°C
(90°F)		32°C
(90°F)		28°C
(83°F)		23°C
(73°F)		18°C
(64°F)		14°C
(57°F)
Daily mean7°C
(44°F)		8°C
(47°F)		10°C
(50°F)		14°C
(57°F)		19°C
(67°F)		23°C
(73°F)		27°C
(80°F)		27°C
(81°F)		23°C
(73°F)		17°C
(63°F)		13°C
(56°F)		9°C
(48°F)
Average low2°C
(37°F)		4°C
(40°F)		5°C
(42°F)		8°C
(47°F)		13°C
(56°F)		17°C
(63°F)		21°C
(70°F)		22°C
(71°F)		18°C
(64°F)		13°C
(55°F)		9°C
(49°F)		5°C
(42°F)
Mean minimum-4°C
(25°F)		-1°C
(31°F)		0°C
(32°F)		3°C
(38°F)		9°C
(48°F)		13°C
(55°F)		17°C
(64°F)		18°C
(65°F)		13°C
(55°F)		8°C
(47°F)		4°C
(40°F)		-0°C
(32°F)
Minimum-6°C
(21°F)		-4°C
(26°F)		-2°C
(28°F)		1°C
(34°F)		7°C
(44°F)		10°C
(49°F)		17°C
(62°F)		17°C
(63°F)		11°C
(52°F)		6°C
(43°F)		1°C
(34°F)		-3°C
(28°F)

Compare climate in Geraki with other places

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

Monthly average precipitation in Geraki, Greece

Geraki usually has the most precipitation in January, November and December, with an average of 9 rainy days and 81 mm (3.2 inches) of precipitation per month. The driest months in Geraki are May, July and August. On average, 22 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Geraki. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)75 (2.9)68 (2.7)59 (2.3)38 (1.5)34 (1.3)61 (2.4)17 (0.7)14 (0.6)37 (1.4)45 (1.8)78 (3.1)90 (3.6)
Average precipitation days (≥ 1 mm)98106693235911

Monthly sunshine hours in Geraki, Greece

The sunniest months in Geraki are May, June and July, when the sun shines an average of 13 hours 20 minutes a day. Least sunny months in Geraki: 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 Geraki. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours212261330344398408420393344316264255
Mean daily daylight hours9h 55m10h 49m11h 58m13h 9m14h 8m14h 38m14h 23m13h 30m12h 22m11h 12m10h 10m9h 39m

Solar UV radiation in Geraki, Greece

Geraki experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme 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 Geraki UV Index data.

Average daily maximum UV levels by month for Geraki. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3579101110108743