Best year time to visit Lammu

General weather information about Lammu

Average annual temperature is 4.3 °C

Absolute maximum temperature: 26.8 °C

Absolute minimum temperature: -16.5 °C

Number of sunny days: 111 days

Number of rainy days: 169 days

Number of snow days: 85 days

Look at detailed online map of Lammu

* Weather data for Lammu Finland is based on climate observations for 2026 year

Lammu air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	2.1	2.6	3.3	16.5	23.3	26.3	23.9	26.8	20.6	11.4	2.6	2.0
Average daytime temperature (°C)	-2.4	-3.1	-1.9	6.4	14.3	19.5	18.7	19.9	16.5	4.1	-2.1	-5.8
Average temperature (°C)	-4.0	-5.1	-4.3	1.2	9.7	15.2	15.9	17.0	13.7	2.3	-3.6	-7.1
Average night temperature (°C)	-5.6	-7.2	-6.9	-3.0	4.6	10.0	13.0	13.8	10.8	0.5	-5.1	-8.4
Absolute minimum temperature (°C)	-16.0	-16.5	-14.8	-9.0	-2.3	1.8	10.2	9.5	7.9	-6.1	-15.8	-14.2

Lammu 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	19.0	19.0	17.0	14.0	11.0	8.0	5.0
Daylight mean duration (h)	6.2	8.8	11.8	14.9	17.8	19.7	18.8	16.0	13.0	9.9	7.0	5.2
Daylight minimum duration (h)	5.0	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)	0.5	2.1	5.0	11.1	12.4	14.9	10.5	10.7	6.6	3.8	0.2	0.2
Precipitation (mm)	79	29	78	16	51	66	200	83	105	96	78	52
Sunny days	9	9	7	23	12	11	7	7	8	8	5	5
Rainy days	9	4	8	7	17	19	24	24	22	17	14	4
Snow days	13	15	16	0	2	0	0	0	0	6	11	22

Lammu - weather forecast by months

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

Best time to visit Lammu:

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

April — 11.1(h)
May — 12.4(h)
June — 14.9(h)
July — 10.5(h)
August — 10.7(h)

Months with the longest average daylight duration in Lammu:

May — 17.8(h)
June — 19.7(h)
July — 18.8(h)
August — 16.0(h)

The largest precipitation sum in Lammu is at

July — 200(mm)

September — 105(mm)

Weather forecast in the closest to Lammu admin centers