Average annual temperature is 2.9 °C
Absolute maximum temperature: 31.6 °C
Absolute minimum temperature: -29.2 °C
Number of sunny days: 128 days
Number of rainy days: 166 days
Number of snow days: 71 days
Look at detailed online map of Mary's Harbour
* Weather data for Mary's Harbour Canada is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 4.8 | 1.7 | 3.6 | 11.9 | 20.4 | 30.0 | 31.6 | 27.8 | 27.0 | 23.3 | 10.1 | 12.9 |
| Average daytime temperature (°C) | -5.6 | -10.1 | 0.1 | 3.5 | 7.7 | 14.3 | 23.3 | 19.1 | 16.1 | 10.6 | 1.7 | 0.7 |
| Average temperature (°C) | -9.3 | -15.3 | -2.5 | -0.2 | 3.6 | 9.1 | 18.5 | 15.1 | 11.7 | 7.3 | -1.8 | -2.4 |
| Average night temperature (°C) | -13.1 | -19.6 | -4.7 | -3.3 | 0.2 | 4.9 | 14.5 | 11.9 | 8.3 | 4.7 | -4.5 | -5.8 |
| Absolute minimum temperature (°C) | -22.8 | -29.2 | -20.8 | -14.4 | -4.2 | -2.6 | 8.1 | 6.1 | 3.5 | -2.9 | -10.7 | -12.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.3 | 9.9 | 11.9 | 13.9 | 15.7 | 16.7 | 16.2 | 14.6 | 12.7 | 10.6 | 8.8 | 7.8 |
| Daylight minimum duration (h) | 7.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 7.0 |
| Sunshine mean duration (h) | 3.2 | 6.4 | 3.2 | 7.5 | 6.0 | 5.9 | 8.1 | 6.3 | 6.3 | 4.3 | 4.8 | 2.2 |
| Precipitation (mm) | 88 | 35 | 134 | 57 | 144 | 121 | 72 | 141 | 107 | 91 | 128 | 116 |
| Sunny days | 9 | 14 | 5 | 15 | 9 | 8 | 9 | 8 | 13 | 11 | 15 | 12 |
| Rainy days | 4 | 1 | 9 | 10 | 18 | 22 | 22 | 23 | 17 | 20 | 7 | 13 |
| Snow days | 18 | 13 | 17 | 5 | 4 | 0 | 0 | 0 | 0 | 0 | 8 | 6 |
The best time to visit Mary's Harbour during the most sunny months:
Months with the longest average daylight duration in Mary's Harbour:
The largest precipitation sum in Mary's Harbour is at