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Monthly climate in Joniskis, Lithuania

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Joniskis features a humid continental climate (Dfb). Temperatures typically range between -1 °C (30 °F) and 18 °C (65 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 32 °C (90 °F). The average annual precipitation amounts to about 657 mm (25.9 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Joniskis enjoys an average of 3307 hours of sunshine throughout the year, and daylight varies from 6 hours 59 minutes to 17 hours 33 minutes per day.

Monthly average temperatures in Joniskis, Lithuania

The warmest months in Joniskis are June, July and August, with daily mean temperatures ranging from 18 to 18 °C (64 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 0 °C (30 - 32 °F) throughout the day. On average each year, Joniskis experiences 25 days above 25 °C (77.0 °F) and 95 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Joniskis. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		12°C
(53°F)		15°C
(59°F)		26°C
(79°F)		28°C
(82°F)		32°C
(90°F)		31°C
(89°F)		32°C
(89°F)		28°C
(82°F)		21°C
(70°F)		15°C
(59°F)		10°C
(50°F)
Mean maximum6°C
(43°F)		8°C
(46°F)		13°C
(55°F)		21°C
(69°F)		25°C
(77°F)		27°C
(80°F)		29°C
(84°F)		29°C
(84°F)		26°C
(79°F)		18°C
(66°F)		13°C
(55°F)		7°C
(45°F)
Average high1°C
(33°F)		1°C
(34°F)		5°C
(42°F)		11°C
(52°F)		17°C
(62°F)		22°C
(72°F)		23°C
(73°F)		22°C
(72°F)		18°C
(64°F)		12°C
(54°F)		6°C
(43°F)		1°C
(35°F)
Daily mean-1°C
(30°F)		-1°C
(30°F)		2°C
(35°F)		7°C
(44°F)		12°C
(53°F)		18°C
(64°F)		18°C
(65°F)		18°C
(64°F)		13°C
(57°F)		9°C
(48°F)		4°C
(40°F)		-0°C
(32°F)
Average low-3°C
(26°F)		-4°C
(25°F)		-2°C
(29°F)		2°C
(36°F)		6°C
(44°F)		12°C
(54°F)		14°C
(57°F)		13°C
(55°F)		10°C
(50°F)		6°C
(43°F)		3°C
(37°F)		-2°C
(29°F)
Mean minimum-15°C
(6°F)		-14°C
(7°F)		-9°C
(16°F)		-4°C
(26°F)		-2°C
(29°F)		5°C
(42°F)		9°C
(48°F)		7°C
(45°F)		3°C
(37°F)		-1°C
(30°F)		-4°C
(25°F)		-8°C
(18°F)
Minimum-25°C
(-13°F)		-22°C
(-7°F)		-21°C
(-5°F)		-6°C
(21°F)		-4°C
(25°F)		3°C
(38°F)		7°C
(44°F)		6°C
(43°F)		-1°C
(31°F)		-2°C
(28°F)		-9°C
(15°F)		-17°C
(1°F)

Compare climate in Joniskis with other places

Compare temperature, precipitation, sunshine, UV index in Joniskis, Lithuania with other places around the world.

Monthly average precipitation in Joniskis, Lithuania

Joniskis usually has the most precipitation in May, July and August, with an average of 12 rainy days and 75 mm (3.0 inches) of precipitation per month. The driest months in Joniskis are January, February and April. On average, 37 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Joniskis. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)41 (1.6)34 (1.4)45 (1.8)35 (1.4)64 (2.5)53 (2.1)88 (3.5)74 (2.9)62 (2.4)60 (2.4)52 (2.0)49 (1.9)
Average precipitation days (≥ 1 mm)10812101110131311131113

Monthly sunshine hours in Joniskis, Lithuania

The sunniest months in Joniskis are May, June and July, when the sun shines an average of 14 hours 23 minutes a day. Least sunny months in Joniskis: January, November and December receive an average of 3 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Joniskis. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours8316526234642445144738830622611885
Mean daily daylight hours7h 37m9h 33m11h 53m14h 15m16h 23m17h 33m16h 55m14h 59m12h 41m10h 20m8h 11m6h 59m

Solar UV radiation in Joniskis, Lithuania

Joniskis experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 6 - 7, which corresponds to the High category of sun exposure. January, February and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Joniskis UV Index data.

Average daily maximum UV levels by month for Joniskis. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123567764321