Annual Weather Averages in Saint John
Saint John is 113 kilometers from Southwest Head, so the actual climate in Southwest Head can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Southwest Head
High Temp: 23 °C
Low Temp: -13 °C
Mean Temp: 5 °C
Precipitation: 108.8 mm
Humidity: 77%
Dew Point: 2 °C
Wind: 28 km/h
Pressure: 101.48 kPa
Visibility: 18 km
January Climate & Weather Averages in Southwest Head
High Temp: -2 °C
Low Temp: -13 °C
Mean Temp: -7 °C
Precipitation: 118.0 mm
Humidity: 74%
Dew Point: -11 °C
Wind: 32 km/h
Pressure: 101.37 kPa
Visibility: 19 km
February Climate & Weather Averages in Southwest Head
High Temp: -1 °C
Low Temp: -12 °C
Mean Temp: -7 °C
Precipitation: 102.1 mm
Humidity: 72%
Dew Point: -11 °C
Wind: 32 km/h
Pressure: 101.36 kPa
Visibility: 19 km
March Climate & Weather Averages in Southwest Head
High Temp: 3 °C
Low Temp: -7 °C
Mean Temp: -2 °C
Precipitation: 103.2 mm
Humidity: 71%
Dew Point: -7 °C
Wind: 33 km/h
Pressure: 101.44 kPa
Visibility: 19 km
April Climate & Weather Averages in Southwest Head
High Temp: 9 °C
Low Temp: -1 °C
Mean Temp: 4 °C
Precipitation: 97.5 mm
Humidity: 72%
Dew Point: -1 °C
Wind: 32 km/h
Pressure: 101.38 kPa
Visibility: 19 km
May Climate & Weather Averages in Southwest Head
High Temp: 15 °C
Low Temp: 4 °C
Mean Temp: 9 °C
Precipitation: 94.7 mm
Humidity: 75%
Dew Point: 4 °C
Wind: 28 km/h
Pressure: 101.51 kPa
Visibility: 19 km
June Climate & Weather Averages in Southwest Head
High Temp: 20 °C
Low Temp: 8 °C
Mean Temp: 14 °C
Precipitation: 104.8 mm
Humidity: 78%
Dew Point: 10 °C
Wind: 25 km/h
Pressure: 101.36 kPa
Visibility: 17 km
July Climate & Weather Averages in Southwest Head
High Temp: 23 °C
Low Temp: 12 °C
Mean Temp: 17 °C
Precipitation: 86.7 mm
Humidity: 80%
Dew Point: 14 °C
Wind: 22 km/h
Pressure: 101.37 kPa
Visibility: 16 km
August Climate & Weather Averages in Southwest Head
High Temp: 23 °C
Low Temp: 11 °C
Mean Temp: 17 °C
Precipitation: 72.0 mm
Humidity: 80%
Dew Point: 13 °C
Wind: 21 km/h
Pressure: 101.53 kPa
Visibility: 17 km
September Climate & Weather Averages in Southwest Head
High Temp: 19 °C
Low Temp: 8 °C
Mean Temp: 13 °C
Precipitation: 115.9 mm
Humidity: 81%
Dew Point: 10 °C
Wind: 24 km/h
Pressure: 101.71 kPa
Visibility: 18 km
October Climate & Weather Averages in Southwest Head
High Temp: 13 °C
Low Temp: 3 °C
Mean Temp: 8 °C
Precipitation: 130.4 mm
Humidity: 79%
Dew Point: 4 °C
Wind: 28 km/h
Pressure: 101.61 kPa
Visibility: 20 km
November Climate & Weather Averages in Southwest Head
High Temp: 7 °C
Low Temp: -2 °C
Mean Temp: 2 °C
Precipitation: 136.0 mm
Humidity: 79%
Dew Point: -1 °C
Wind: 29 km/h
Pressure: 101.63 kPa
Visibility: 20 km
December Climate & Weather Averages in Southwest Head
High Temp: 2 °C
Low Temp: -8 °C
Mean Temp: -3 °C
Precipitation: 144.8 mm
Humidity: 78%
Dew Point: -6 °C
Wind: 32 km/h
Pressure: 101.46 kPa
Visibility: 19 km