Best year time to visit South Deer Isle

General weather information about South Deer Isle

Average annual temperature is 8.5 °C

Absolute maximum temperature: 22.8 °C

Absolute minimum temperature: -29.6 °C

Number of sunny days: 179 days

Number of rainy days: 164 days

Number of snow days: 22 days

* Weather data for South Deer Isle United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	10.1	7.5	6.4	13.6	18.2	15.8	22.8	21.1	22.8	19.5	12.8	12.5
Average daytime temperature (°C)	4.3	1.9	4.2	7.3	12.1	13.5	18.0	18.4	17.2	14.4	8.0	5.7
Average temperature (°C)	1.6	-1.6	2.1	5.7	9.9	12.2	16.7	17.0	15.7	12.8	5.4	3.3
Average night temperature (°C)	-0.6	-4.8	0.3	4.3	8.3	11.3	15.7	15.8	14.4	11.5	3.3	1.3
Absolute minimum temperature (°C)	-6.4	-29.6	-3.6	-1.3	4.9	7.8	13.2	14.4	10.7	4.1	-4.1	-6.5

The best time to visit South Deer Isle during the most sunny months:

Months with the longest average daylight duration in South Deer Isle:

The largest precipitation sum in South Deer Isle is at

January — 198(mm)

October — 164(mm)

When is the best time to visit South Deer Isle?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit South Deer Isle.

What is the weather like in South Deer Isle?

See average temperature, rainfall and daylight hours for South Deer Isle by month in the table above.

How many sunny days does South Deer Isle have?

The monthly weather statistics above show sunshine and rainfall patterns for South Deer Isle throughout the year.