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Monthly climate in Sperlonga, Italy

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sperlonga features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 9 °C (49 °F) and 26 °C (79 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 1233 mm (48.6 inches) and receives 104 rainy days on the 1 mm (0.04 inches) threshold annually. Sperlonga enjoys an average of 3897 hours of sunshine throughout the year, and daylight varies from 9 hours 14 minutes to 15 hours 5 minutes per day.

Monthly average temperatures in Sperlonga, Italy

The warmest months in Sperlonga are July, August and September, with daily mean temperatures ranging from 22 to 26 °C (73 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 11 °C (49 - 53 °F) throughout the day. On average each year, Sperlonga experiences 74 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 Sperlonga. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum17°C
(63°F)		17°C
(62°F)		18°C
(65°F)		24°C
(76°F)		28°C
(83°F)		29°C
(85°F)		30°C
(86°F)		31°C
(88°F)		29°C
(84°F)		25°C
(78°F)		22°C
(71°F)		17°C
(63°F)
Mean maximum15°C
(59°F)		16°C
(60°F)		17°C
(63°F)		20°C
(68°F)		24°C
(76°F)		27°C
(81°F)		29°C
(85°F)		31°C
(87°F)		28°C
(82°F)		24°C
(75°F)		20°C
(69°F)		16°C
(62°F)
Average high12°C
(53°F)		13°C
(56°F)		14°C
(57°F)		16°C
(61°F)		20°C
(68°F)		24°C
(76°F)		27°C
(81°F)		28°C
(83°F)		25°C
(77°F)		21°C
(69°F)		17°C
(63°F)		13°C
(56°F)
Daily mean9°C
(49°F)		11°C
(51°F)		11°C
(53°F)		14°C
(57°F)		18°C
(64°F)		22°C
(72°F)		25°C
(77°F)		26°C
(79°F)		22°C
(73°F)		18°C
(65°F)		15°C
(59°F)		11°C
(53°F)
Average low7°C
(45°F)		8°C
(47°F)		9°C
(48°F)		11°C
(53°F)		15°C
(60°F)		19°C
(67°F)		22°C
(72°F)		23°C
(74°F)		20°C
(68°F)		16°C
(61°F)		13°C
(55°F)		9°C
(49°F)
Mean minimum3°C
(39°F)		4°C
(39°F)		4°C
(40°F)		7°C
(45°F)		11°C
(53°F)		16°C
(62°F)		20°C
(69°F)		21°C
(70°F)		16°C
(61°F)		13°C
(55°F)		8°C
(47°F)		6°C
(43°F)
Minimum-2°C
(29°F)		-1°C
(31°F)		0°C
(33°F)		5°C
(41°F)		8°C
(48°F)		13°C
(56°F)		19°C
(67°F)		20°C
(68°F)		13°C
(56°F)		11°C
(52°F)		6°C
(43°F)		5°C
(41°F)

Compare climate in Sperlonga with other places

Compare temperature, precipitation, sunshine, UV index in Sperlonga, Italy with other places around the world.

Monthly average precipitation in Sperlonga, Italy

Sperlonga usually has the most precipitation in October, November and December, with an average of 13 rainy days and 213 mm (8.4 inches) of precipitation per month. The driest months in Sperlonga are June, July and August. On average, 19 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sperlonga. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)96 (3.8)115 (4.5)94 (3.7)64 (2.5)65 (2.5)30 (1.2)16 (0.6)11 (0.4)102 (4.0)116 (4.6)316 (12.4)209 (8.2)
Average precipitation days (≥ 1 mm)101010109422791714

Monthly sunshine hours in Sperlonga, Italy

The sunniest months in Sperlonga are June, July and August, when the sun shines an average of 13 hours 26 minutes a day. Least sunny months in Sperlonga: January, November and December receive an average of 7 hours 26 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sperlonga. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours196258322349396411427397337312244243
Mean daily daylight hours9h 34m10h 37m11h 57m13h 20m14h 29m15h 5m14h 46m13h 44m12h 25m11h 3m9h 51m9h 14m

Solar UV radiation in Sperlonga, Italy

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

Average daily maximum UV levels by month for Sperlonga. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)34579101097642