Castine (ME) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Castine

Castine average temperature chart (Celsius) Castine average temperature chart (Fahrenheit)
Average monthly temperatures in Castine (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -2 -0.7 4.5 11 17.8 22.7 25.8 24.8 20.2 14.2 7.7 0.5
°F 28.4 30.8 40.1 51.8 64 72.9 78.5 76.6 68.4 57.5 45.9 32.9

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Castine monthly rainfall chart (mm) Castine monthly rainfall chart (inches)
Average monthly rainfall in Castine (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 97 82 96 96 96 88 83 78 97 100 123 116
inches 3.8 3.2 3.8 3.8 3.8 3.5 3.3 3.1 3.8 3.9 4.9 4.6
Rainy days 12 10 12 12 12 12 11 11 10 11 13 13

Average annual rainfall in Castine: 1126.967mm (443.7 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Castine

Castine average daily sunshine chart
Average daily sunshine Castine
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.2 5.2 5.8 6.6 7.6 8.2 8.5 8.1 7 5.7 4 3.6

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Castine average minimum / maximum temperatures (Celsius) Castine average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Castine (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -12.5 -11.2 -4.8 0.9 6.4 11.4 14.7 14 9.5 4.2 -0.7 -9
Max °C -1.8 -0.4 4.8 11.3 18.1 23 26.1 25.1 20.5 14.4 7.9 0.8
Min °F 9.6 11.8 23.5 33.7 43.4 52.5 58.5 57.1 49.1 39.6 30.7 15.9
Max °F 19.2 21.6 32 43 54 63 68.7 67.1 59 48.7 38.5 24.6

Sea temperature

The graph below shows the average sea temperature.

Castine average sea temperature chart (Celsius) Castine average sea temperature chart (Fahrenheit)
Average sea temperature around Castine in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.1 4.7 4.2 5.2 7.9 11 13.8 14.8 13.3 11.2 9.4 7.7
°F 43 40.5 39.5 41.4 46.2 51.7 56.8 58.6 55.9 52.1 48.8 45.9

Wind speed

The graph below shows the average wind speed.

Castine average winspeed by month (km/h) Castine average winspeed by month (mph)
Average wind speed in Castine (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 16 16 17 17 15 14 13 12 13 14 15 16
mph 10 10 11 10 9 9 8 7 8 9 9 10

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Castine relative humidity averages
Average relative humidity in Castine
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 69% 69% 70% 72% 75% 77% 79% 79% 77% 77% 74%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Castine weather stats

Castine weather statistics
Hottest month: July 25.8°C 78.4°F
Driest month: August 78mm 3.1ins
Sunniest month: August 8.1hrs
Coldest month: January -2°C 28.4°F
Wettest month: November 123mm 4.8ins
Warmest sea: August 14.8°C 58.6°F
Map showing location of Castine (44.38785, -68.79975) Castine map pin © Google

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