Best year time to visit Castine

General weather information about Castine

Average annual temperature is 8.8 °C

Absolute maximum temperature: 30.8 °C

Absolute minimum temperature: -28.4 °C

Number of sunny days: 165 days

Number of rainy days: 173 days

Number of snow days: 27 days

* Weather data for Castine 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)	9.3	11.3	10.3	20.8	26.5	25.9	28.0	26.9	30.8	26.4	13.3	13.3
Average daytime temperature (°C)	3.1	1.2	4.6	10.4	16.5	18.1	24.4	22.8	21.8	16.2	6.7	4.3
Average temperature (°C)	-0.2	-3.2	1.2	6.5	11.9	14.6	20.4	18.9	17.3	12.5	3.1	1.1
Average night temperature (°C)	-3.2	-7.3	-2.0	3.1	8.1	12.1	17.5	15.7	14.0	9.5	0.0	-1.9
Absolute minimum temperature (°C)	-9.5	-28.4	-6.6	-3.5	3.2	6.9	14.8	12.0	8.5	1.1	-6.4	-11.2

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

Months with the longest average daylight duration in Castine:

The largest precipitation sum in Castine is at

January — 180(mm)

July — 153(mm)

August — 161(mm)

October — 167(mm)

December — 161(mm)

When is the best time to visit Castine?

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

What is the weather like in Castine?

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

How many sunny days does Castine have?

The monthly weather statistics above show sunshine and rainfall patterns for Castine throughout the year.