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Monthly climate in Ermoupolis, Greece

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ermoupolis features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 12 °C (54 °F) and 25 °C (77 °F) through the year, but rarely can drop to 2 °C (37 °F) or can rise to as high as 30 °C (85 °F). The average annual precipitation amounts to about 362 mm (14.2 inches) and receives 51 rainy days on the 1 mm (0.04 inches) threshold annually. Ermoupolis enjoys an average of 3992 hours of sunshine throughout the year, and daylight varies from 9 hours 36 minutes to 14 hours 41 minutes per day.

Monthly average temperatures in Ermoupolis, Greece

The warmest months in Ermoupolis are July, August and September, with daily mean temperatures ranging from 23 to 25 °C (74 - 77 °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, Ermoupolis experiences 49 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 Ermoupolis. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(67°F)		18°C
(64°F)		17°C
(63°F)		20°C
(69°F)		24°C
(75°F)		28°C
(83°F)		30°C
(85°F)		30°C
(85°F)		27°C
(81°F)		26°C
(78°F)		22°C
(72°F)		20°C
(68°F)
Mean maximum17°C
(62°F)		16°C
(62°F)		17°C
(62°F)		19°C
(67°F)		23°C
(73°F)		26°C
(79°F)		28°C
(83°F)		28°C
(82°F)		26°C
(80°F)		23°C
(75°F)		21°C
(69°F)		18°C
(65°F)
Average high13°C
(56°F)		14°C
(57°F)		14°C
(58°F)		16°C
(62°F)		20°C
(68°F)		23°C
(74°F)		26°C
(78°F)		26°C
(79°F)		24°C
(76°F)		21°C
(70°F)		18°C
(65°F)		15°C
(60°F)
Daily mean12°C
(54°F)		13°C
(56°F)		14°C
(57°F)		15°C
(60°F)		19°C
(66°F)		22°C
(73°F)		25°C
(77°F)		25°C
(77°F)		23°C
(74°F)		20°C
(68°F)		17°C
(63°F)		14°C
(58°F)
Average low11°C
(52°F)		12°C
(54°F)		13°C
(55°F)		15°C
(59°F)		18°C
(65°F)		22°C
(71°F)		24°C
(76°F)		24°C
(76°F)		23°C
(73°F)		19°C
(67°F)		17°C
(62°F)		14°C
(57°F)
Mean minimum6°C
(42°F)		8°C
(47°F)		9°C
(48°F)		12°C
(53°F)		16°C
(60°F)		19°C
(66°F)		23°C
(73°F)		23°C
(73°F)		19°C
(67°F)		16°C
(62°F)		13°C
(57°F)		10°C
(49°F)
Minimum2°C
(37°F)		6°C
(43°F)		4°C
(39°F)		10°C
(50°F)		14°C
(58°F)		17°C
(63°F)		22°C
(71°F)		22°C
(71°F)		19°C
(66°F)		14°C
(58°F)		11°C
(53°F)		8°C
(48°F)

Compare climate in Ermoupolis with other places

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

Monthly average precipitation in Ermoupolis, Greece

Ermoupolis usually has the most precipitation in January, November and December, with an average of 10 rainy days and 74 mm (2.9 inches) of precipitation per month. The driest months in Ermoupolis are June, July and August. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ermoupolis. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)91 (3.6)42 (1.7)41 (1.6)19 (0.7)6 (0.2)5 (0.2)0 (0.0)0 (0.0)6 (0.2)22 (0.9)44 (1.7)87 (3.4)
Average precipitation days (≥ 1 mm)12852110012613

Monthly sunshine hours in Ermoupolis, Greece

The sunniest months in Ermoupolis are May, June and July, when the sun shines an average of 13 hours 28 minutes a day. Least sunny months in Ermoupolis: January, February and December receive an average of 7 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ermoupolis. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours205264334350401412425398349325271254
Mean daily daylight hours9h 53m10h 48m11h 58m13h 10m14h 11m14h 41m14h 25m13h 31m12h 22m11h 11m10h 8m9h 36m

Solar UV radiation in Ermoupolis, Greece

Ermoupolis 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 Ermoupolis UV Index data.

Average daily maximum UV levels by month for Ermoupolis. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)356891010108643