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Monthly climate in Senj, Croatia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Senj features a oceanic climate (Cfb). Temperatures typically range between 0 °C (33 °F) and 21 °C (71 °F) through the year, but rarely can drop to -17 °C (1 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1447 mm (57.0 inches) and receives 142 rainy days on the 1 mm (0.04 inches) threshold annually. Senj enjoys an average of 3798 hours of sunshine throughout the year, and daylight varies from 8 hours 49 minutes to 15 hours 32 minutes per day.

Monthly average temperatures in Senj, Croatia

The warmest months in Senj are June, July and August, with daily mean temperatures ranging from 19 to 21 °C (67 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 3 °C (33 - 38 °F) throughout the day. On average each year, Senj experiences 48 days above 25 °C (77.0 °F) and 66 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Senj. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(54°F)		19°C
(67°F)		19°C
(67°F)		25°C
(77°F)		27°C
(81°F)		33°C
(92°F)		33°C
(91°F)		35°C
(95°F)		28°C
(83°F)		23°C
(74°F)		19°C
(66°F)		14°C
(58°F)
Mean maximum10°C
(51°F)		13°C
(56°F)		18°C
(64°F)		21°C
(70°F)		24°C
(75°F)		29°C
(84°F)		31°C
(89°F)		33°C
(91°F)		27°C
(81°F)		22°C
(71°F)		16°C
(62°F)		12°C
(54°F)
Average high4°C
(39°F)		7°C
(45°F)		10°C
(50°F)		14°C
(58°F)		18°C
(65°F)		24°C
(76°F)		26°C
(79°F)		27°C
(80°F)		21°C
(70°F)		16°C
(61°F)		10°C
(50°F)		6°C
(43°F)
Daily mean0°C
(33°F)		3°C
(38°F)		5°C
(42°F)		10°C
(50°F)		14°C
(57°F)		19°C
(67°F)		21°C
(70°F)		21°C
(71°F)		16°C
(61°F)		11°C
(53°F)		7°C
(45°F)		3°C
(38°F)
Average low-3°C
(27°F)		0°C
(33°F)		1°C
(35°F)		6°C
(42°F)		10°C
(50°F)		15°C
(59°F)		16°C
(62°F)		17°C
(63°F)		12°C
(54°F)		8°C
(46°F)		4°C
(40°F)		0°C
(33°F)
Mean minimum-9°C
(16°F)		-6°C
(21°F)		-5°C
(23°F)		-1°C
(31°F)		5°C
(40°F)		10°C
(50°F)		12°C
(55°F)		11°C
(53°F)		6°C
(43°F)		3°C
(38°F)		-1°C
(30°F)		-6°C
(21°F)
Minimum-17°C
(1°F)		-13°C
(10°F)		-14°C
(7°F)		-6°C
(22°F)		1°C
(35°F)		7°C
(46°F)		11°C
(52°F)		9°C
(49°F)		4°C
(39°F)		1°C
(34°F)		-3°C
(26°F)		-10°C
(13°F)

Compare climate in Senj with other places

Compare temperature, precipitation, sunshine, UV index in Senj, Croatia with other places around the world.

Monthly average precipitation in Senj, Croatia

Senj usually has the most precipitation in May, September and December, with an average of 14 rainy days and 172 mm (6.8 inches) of precipitation per month. The driest months in Senj are January, June and July. On average, 82 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Senj. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)87 (3.4)126 (5.0)95 (3.7)108 (4.3)177 (7.0)79 (3.1)79 (3.1)91 (3.6)170 (6.7)116 (4.6)151 (5.9)168 (6.6)
Average precipitation days (≥ 1 mm)111311121999911101414

Monthly sunshine hours in Senj, Croatia

The sunniest months in Senj are June, July and August, when the sun shines an average of 13 hours 34 minutes a day. Least sunny months in Senj: January, November and December receive an average of 6 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Senj. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours183233318349382417431400331301227221
Mean daily daylight hours9h 11m10h 24m11h 56m13h 31m14h 51m15h 32m15h 10m13h 59m12h 28m10h 55m9h 32m8h 49m

Solar UV radiation in Senj, Croatia

Senj experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, 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 3. For more detailed information, check out our hourly Senj UV Index data.

Average daily maximum UV levels by month for Senj. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235789987532