Mattawa monthly weather averages

Contents

Average daytime temperature

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

Mattawa average temperature chart (Celsius) Mattawa average temperature chart (Fahrenheit)
Average monthly temperatures in Mattawa (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -7.4 -5.5 1 9.1 17.3 22.4 25 23 17.9 11.7 3.2 -4.7
°F 18.6 22.1 33.7 48.3 63.1 72.3 76.9 73.4 64.2 53.1 37.7 23.5

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.

Mattawa monthly rainfall chart (mm) Mattawa monthly rainfall chart (inches)
Average monthly rainfall in Mattawa (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 60 55 54 62 68 88 98 104 102 79 82 73
inches 2.4 2.2 2.1 2.4 2.7 3.5 3.9 4.1 4 3.1 3.2 2.9
Rainy days 15 11 11 10 11 13 13 13 13 13 14 15

Average annual rainfall in Mattawa: 890.6mm (350.6 inches)

Average daily sunshine

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

Mattawa average daily sunshine chart
Average daily sunshine Mattawa
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.3 4.6 5.3 6.8 8.1 8.8 9.5 8 5.4 4.1 2.4 2.5

Day / night temperatures

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

Mattawa average minimum / maximum temperatures (Celsius) Mattawa average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Mattawa (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -18.9 -18.2 -11.3 -3 3.2 8.5 11.5 10.9 6.9 1.7 -4 -13.7
Max °C -7.2 -5.2 1.3 9.4 17.6 22.7 25.3 23.3 18.2 12 3.4 -4.5
Min °F -1.9 -0.8 11.8 26.7 37.8 47.3 52.7 51.6 44.3 35 24.9 7.3
Max °F 8.6 10.9 23 37.8 50.7 60.1 65.1 62.8 54.5 44.2 31.5 15.6

Sea temperature

The graph below shows the average sea temperature.

Mattawa average sea temperature chart (Celsius) Mattawa average sea temperature chart (Fahrenheit)
Average sea temperature around Mattawa in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.6 1.9 1.5 1.9 4.3 9.5 14.8 17 15.3 11.1 7.1 4.1
°F 36.7 35.4 34.7 35.5 39.7 49.2 58.7 62.6 59.5 52 44.8 39.4

Wind speed

The graph below shows the average wind speed.

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

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.

Mattawa relative humidity averages
Average relative humidity in Mattawa
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
76% 74% 71% 66% 65% 70% 72% 77% 80% 78% 82% 80%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Mattawa weather stats

Mattawa weather statistics
Hottest month: July 25°C 77°F
Driest month: March 54mm 2.1ins
Sunniest month: July 9.5hrs
Coldest month: January -7.4°C 18.7°F
Wettest month: August 104mm 4.1ins
Warmest sea: August 17°C 62.6°F
Map showing location of Mattawa (46.31681, -78.69957) Mattawa map pin © Google

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