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Monthly climate in Jonava, Lithuania

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Jonava features a humid continental climate (Dfb). Temperatures typically range between -2 °C (30 °F) and 19 °C (66 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 711 mm (28.0 inches) and receives 141 rainy days on the 1 mm (0.04 inches) threshold annually. Jonava enjoys an average of 3247 hours of sunshine throughout the year, and daylight varies from 7 hours 14 minutes to 17 hours 16 minutes per day.

Monthly average temperatures in Jonava, Lithuania

The warmest months in Jonava are June, July and August, with daily mean temperatures ranging from 18 to 19 °C (65 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 0 °C (30 - 32 °F) throughout the day. On average each year, Jonava experiences 31 days above 25 °C (77.0 °F) and 93 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Jonava. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		11°C
(53°F)		16°C
(62°F)		26°C
(79°F)		29°C
(85°F)		34°C
(93°F)		34°C
(93°F)		32°C
(90°F)		28°C
(82°F)		22°C
(72°F)		15°C
(60°F)		10°C
(50°F)
Mean maximum6°C
(42°F)		8°C
(46°F)		13°C
(56°F)		21°C
(70°F)		25°C
(77°F)		28°C
(82°F)		30°C
(86°F)		30°C
(85°F)		26°C
(79°F)		19°C
(67°F)		13°C
(56°F)		7°C
(44°F)
Average high0°C
(33°F)		1°C
(34°F)		6°C
(42°F)		12°C
(53°F)		17°C
(63°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		18°C
(65°F)		12°C
(54°F)		6°C
(43°F)		2°C
(35°F)
Daily mean-2°C
(30°F)		-1°C
(30°F)		2°C
(36°F)		7°C
(45°F)		13°C
(55°F)		18°C
(65°F)		19°C
(66°F)		18°C
(65°F)		14°C
(57°F)		9°C
(48°F)		5°C
(40°F)		0°C
(32°F)
Average low-4°C
(26°F)		-4°C
(26°F)		-2°C
(29°F)		2°C
(36°F)		7°C
(45°F)		13°C
(55°F)		14°C
(58°F)		13°C
(56°F)		10°C
(50°F)		6°C
(43°F)		3°C
(37°F)		-2°C
(29°F)
Mean minimum-15°C
(5°F)		-13°C
(9°F)		-9°C
(16°F)		-4°C
(25°F)		-0°C
(32°F)		5°C
(42°F)		9°C
(48°F)		8°C
(46°F)		3°C
(38°F)		-0°C
(32°F)		-4°C
(26°F)		-8°C
(19°F)
Minimum-25°C
(-13°F)		-21°C
(-6°F)		-19°C
(-1°F)		-6°C
(21°F)		-2°C
(28°F)		3°C
(38°F)		7°C
(45°F)		7°C
(45°F)		-2°C
(29°F)		-3°C
(27°F)		-7°C
(20°F)		-15°C
(5°F)

Compare climate in Jonava with other places

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

Monthly average precipitation in Jonava, Lithuania

Jonava usually has the most precipitation in July, August and September, with an average of 12 rainy days and 81 mm (3.2 inches) of precipitation per month. The driest months in Jonava are February, March and April. On average, 41 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Jonava. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)51 (2.0)38 (1.5)43 (1.7)43 (1.7)63 (2.5)57 (2.2)93 (3.7)85 (3.3)67 (2.6)66 (2.6)51 (2.0)56 (2.2)
Average precipitation days (≥ 1 mm)11913101111131311141213

Monthly sunshine hours in Jonava, Lithuania

The sunniest months in Jonava are May, June and July, when the sun shines an average of 14 hours 4 minutes a day. Least sunny months in Jonava: January, November and December receive an average of 3 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Jonava. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours7716626033641844243338729922110993
Mean daily daylight hours7h 50m9h 40m11h 53m14h 9m16h 10m17h 16m16h 41m14h 51m12h 39m10h 24m8h 21m7h 14m

Solar UV radiation in Jonava, Lithuania

Jonava 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 Jonava UV Index data.

Average daily maximum UV levels by month for Jonava. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124567765321