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Monthly climate in Bolsena, Lazio, Italy

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Bolsena features a humid subtropical climate (Cfa).Temperatures typically range between 5 °C (41 °F) and 25 °C (77 °F) through the year, but rarely can drop to -10 °C (14 °F) or can rise to as high as 38 °C (100 °F).The average annual precipitation amounts to about 984 mm (38.7 inches) and receives 115 rainy days on the 1 mm (0.04 inches) threshold annually.Bolsena enjoys an average of 3855 hours of sunshine throughout the year, and daylight varies from 9 hours 3 minutes to 15 hours 16 minutes per day.

Monthly average temperatures in Bolsena, Lazio, Italy §

The warmest months in Bolsena are June, July and August, with daily mean temperatures ranging from 21 to 25 °C (71 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 7 °C (41 - 45 °F) throughout the day. On average each year, Bolsena experiences 86 days above 25 °C (77.0 °F) and 15 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bolsena, Lazio, Italy.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 15°C
(60°F)		 18°C
(65°F)		 21°C
(70°F)		 26°C
(78°F)		 31°C
(87°F)		 35°C
(95°F)		 35°C
(95°F)		 38°C
(100°F)		 31°C
(88°F)		 25°C
(78°F)		 19°C
(66°F)		 15°C
(60°F)
Mean maximum 13°C
(56°F)		 16°C
(61°F)		 19°C
(67°F)		 23°C
(73°F)		 26°C
(79°F)		 31°C
(87°F)		 34°C
(93°F)		 35°C
(96°F)		 30°C
(86°F)		 24°C
(75°F)		 18°C
(65°F)		 14°C
(58°F)
Average high 9°C
(48°F)		 11°C
(53°F)		 13°C
(56°F)		 17°C
(63°F)		 21°C
(70°F)		 27°C
(80°F)		 30°C
(86°F)		 31°C
(87°F)		 25°C
(77°F)		 20°C
(68°F)		 14°C
(58°F)		 10°C
(50°F)
Daily mean 5°C
(41°F)		 7°C
(45°F)		 9°C
(48°F)		 12°C
(54°F)		 16°C
(61°F)		 21°C
(71°F)		 24°C
(75°F)		 25°C
(77°F)		 20°C
(68°F)		 15°C
(59°F)		 11°C
(52°F)		 7°C
(44°F)
Average low 2°C
(36°F)		 4°C
(39°F)		 4°C
(40°F)		 7°C
(45°F)		 12°C
(53°F)		 16°C
(61°F)		 18°C
(66°F)		 19°C
(67°F)		 15°C
(60°F)		 11°C
(52°F)		 8°C
(47°F)		 4°C
(39°F)
Mean minimum -2°C
(28°F)		 -2°C
(28°F)		 -1°C
(30°F)		 1°C
(34°F)		 7°C
(45°F)		 12°C
(54°F)		 15°C
(59°F)		 15°C
(60°F)		 10°C
(50°F)		 7°C
(45°F)		 2°C
(36°F)		 -1°C
(30°F)
Minimum -5°C
(23°F)		 -7°C
(19°F)		 -10°C
(14°F)		 -2°C
(29°F)		 4°C
(40°F)		 9°C
(49°F)		 14°C
(57°F)		 14°C
(57°F)		 7°C
(46°F)		 6°C
(43°F)		 -0°C
(32°F)		 -4°C
(25°F)

Compare climate in Bolsena with other places

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

Monthly average precipitation in Bolsena, Lazio, Italy §

Bolsena usually has the most precipitation in September, November and December, with an average of 12 rainy days and 121 mm (4.8 inches) of precipitation per month.The driest months in Bolsena are June, July and August. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bolsena, Lazio, Italy.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 57 (2.2) 73 (2.9) 79 (3.1) 85 (3.4) 96 (3.8) 48 (1.9) 45 (1.8) 43 (1.7) 99 (3.9) 95 (3.8) 151 (5.9) 115 (4.5)
Average precipitation days (≥ 1 mm) 7 8 10 10 14 5 6 8 9 10 16 12

Monthly sunshine hours in Bolsena, Lazio, Italy §

The sunniest months in Bolsena are June, July and August, when the sun shines an average of 13 hours 37 minutes a day.Least sunny months in Bolsena: January, February and December receive an average of 7 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bolsena, Lazio, Italy.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 189 240 316 347 393 418 432 400 335 309 241 228
Mean daily daylight hours 9h 24m 10h 31m 11h 57m 13h 24m 14h 39m 15h 16m 14h 56m 13h 50m 12h 26m 10h 59m 9h 43m 9h 3m

Solar UV radiation in Bolsena, Lazio, Italy §

Bolsena 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, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Bolsena UV Index data.

Average daily maximum UV levels by month for Bolsena, Lazio, Italy.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 4 5 7 9 10 10 9 7 5 3 2