Best year time to visit Trettnes

General weather information about Trettnes

Average annual temperature is 6.8 °C

Absolute maximum temperature: 23.8 °C

Absolute minimum temperature: -7.5 °C

Number of sunny days: 121 days

Number of rainy days: 219 days

Number of snow days: 25 days

Look at detailed online map of Trettnes

* Weather data for Trettnes Norway is based on climate observations for 2026 year

Trettnes air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	10.2	8.7	6.5	11.1	17.3	23.8	22.2	21.9	19.1	13.1	8.3	9.2
Average daytime temperature (°C)	4.8	5.5	2.5	7.3	9.6	13.7	15.7	15.8	14.5	8.4	3.8	2.0
Average temperature (°C)	3.0	3.8	0.7	5.1	7.7	11.5	13.7	14.1	12.7	7.0	2.2	0.4
Average night temperature (°C)	1.3	2.1	-1.4	2.6	5.8	9.5	12.0	12.7	10.9	5.4	0.5	-1.4
Absolute minimum temperature (°C)	-5.3	-3.6	-7.5	-2.3	0.6	5.4	10.8	11.4	7.5	-0.3	-6.6	-6.1

Trettnes monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	7.0	10.0	13.0	16.0	19.0	20.0	20.0	17.0	14.0	11.0	8.0	5.0
Daylight mean duration (h)	5.9	8.7	11.8	15.0	18.1	20.3	19.2	16.2	13.0	9.8	6.8	4.8
Daylight minimum duration (h)	4.0	7.0	10.0	13.0	16.0	19.0	17.0	14.0	11.0	8.0	5.0	4.0
Sunshine mean duration (h)	1.0	2.6	6.1	9.4	8.5	11.3	11.4	7.9	6.6	4.7	2.8	0.7
Precipitation (mm)	182	191	150	49	108	66	49	122	203	268	72	141
Sunny days	7	3	8	19	10	13	10	10	3	11	17	10
Rainy days	20	24	12	11	21	17	21	21	27	20	11	14
Snow days	4	1	11	0	0	0	0	0	0	0	2	7

Trettnes - weather forecast by months

Trettnes weather in january Trettnes weather in february Trettnes weather in march Trettnes weather in april Trettnes weather in may Trettnes weather in june Trettnes weather in july Trettnes weather in august Trettnes weather in september Trettnes weather in october Trettnes weather in november Trettnes weather in december

Best time to visit Trettnes:

The best time to visit Trettnes during the most sunny months:

April — 9.4(h)
May — 8.5(h)
June — 11.3(h)
July — 11.4(h)
August — 7.9(h)

Months with the longest average daylight duration in Trettnes:

May — 18.1(h)
June — 20.3(h)
July — 19.2(h)
August — 16.2(h)

The largest precipitation sum in Trettnes is at

January — 182(mm)

February — 191(mm)

September — 203(mm)

October — 268(mm)

Weather forecast in the closest to Trettnes admin centers