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Monthly climate in Tranby, Norway

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Tranby features a humid continental climate (Dfb). Temperatures typically range between -3 °C (27 °F) and 18 °C (64 °F) through the year, but rarely can drop to -20 °C (-4 °F) or can rise to as high as 32 °C (90 °F). The average annual precipitation amounts to about 1076 mm (42.4 inches) and receives 138 rainy days on the 1 mm (0.04 inches) threshold annually. Tranby enjoys an average of 3415 hours of sunshine throughout the year, and daylight varies from 6 hours 4 minutes to 18 hours 36 minutes per day.

Monthly average temperatures in Tranby, Norway

The warmest months in Tranby are June, July and August, with daily mean temperatures ranging from 16 to 18 °C (61 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to -2 °C (27 - 28 °F) throughout the day. On average each year, Tranby experiences 15 days above 25 °C (77.0 °F) and 125 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Tranby. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(49°F)		9°C
(48°F)		19°C
(67°F)		23°C
(73°F)		29°C
(85°F)		29°C
(85°F)		32°C
(90°F)		28°C
(83°F)		25°C
(77°F)		18°C
(65°F)		14°C
(57°F)		7°C
(46°F)
Mean maximum7°C
(44°F)		7°C
(44°F)		13°C
(56°F)		18°C
(65°F)		24°C
(75°F)		25°C
(77°F)		27°C
(82°F)		25°C
(78°F)		22°C
(71°F)		15°C
(60°F)		11°C
(52°F)		7°C
(44°F)
Average high-0°C
(31°F)		1°C
(33°F)		5°C
(41°F)		10°C
(51°F)		15°C
(59°F)		20°C
(69°F)		22°C
(72°F)		20°C
(68°F)		16°C
(61°F)		10°C
(50°F)		4°C
(40°F)		-0°C
(32°F)
Daily mean-3°C
(27°F)		-2°C
(28°F)		0°C
(33°F)		5°C
(42°F)		10°C
(51°F)		16°C
(61°F)		18°C
(64°F)		16°C
(61°F)		12°C
(54°F)		7°C
(45°F)		2°C
(37°F)		-2°C
(28°F)
Average low-6°C
(22°F)		-5°C
(22°F)		-4°C
(26°F)		0°C
(33°F)		5°C
(42°F)		11°C
(52°F)		13°C
(56°F)		12°C
(54°F)		9°C
(49°F)		5°C
(41°F)		0°C
(33°F)		-4°C
(25°F)
Mean minimum-15°C
(5°F)		-14°C
(7°F)		-11°C
(12°F)		-6°C
(21°F)		-1°C
(31°F)		7°C
(44°F)		9°C
(48°F)		7°C
(45°F)		4°C
(40°F)		-1°C
(30°F)		-7°C
(20°F)		-13°C
(9°F)
Minimum-19°C
(-3°F)		-20°C
(-4°F)		-18°C
(0°F)		-12°C
(11°F)		-2°C
(28°F)		4°C
(40°F)		8°C
(47°F)		5°C
(41°F)		1°C
(35°F)		-3°C
(27°F)		-8°C
(18°F)		-17°C
(2°F)

Compare climate in Tranby with other places

Compare temperature, precipitation, sunshine, UV index in Tranby, Norway with other places around the world.

Monthly average precipitation in Tranby, Norway

Tranby usually has the most precipitation in September, October and December, with an average of 14 rainy days and 120 mm (4.7 inches) of precipitation per month. The driest months in Tranby are January, February and April. On average, 58 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Tranby. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)64 (2.5)69 (2.7)71 (2.8)41 (1.6)86 (3.4)92 (3.6)96 (3.8)91 (3.6)111 (4.4)135 (5.3)105 (4.1)115 (4.5)
Average precipitation days (≥ 1 mm)911961212111312151216

Monthly sunshine hours in Tranby, Norway

The sunniest months in Tranby are May, June and July, when the sun shines an average of 14 hours 36 minutes a day. Least sunny months in Tranby: January, November and December receive an average of 3 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Tranby. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours9217928837041845447140228022513299
Mean daily daylight hours6h 52m9h 11m11h 51m14h 36m17h 8m18h 36m17h 48m15h 27m12h 47m10h 4m7h 32m6h 4m

Solar UV radiation in Tranby, Norway

Tranby experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 5 - 7, which corresponds to the Moderate / High category of sun exposure. January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 1. For more detailed information, check out our hourly Tranby UV Index data.

Average daily maximum UV levels by month for Tranby. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123457754211