Rocky Harbour Weather: December
![]() |
Average Day Temperature: | 27.2°F |
![]() |
Average Night Temperature: | 25.1°F |
![]() |
Sea Water Temperature: | 35.7°F |
![]() |
Number of Sunny Days: | 0 days |
| Sunshine Hours: | 8.1 - 8.4 hours | |
![]() |
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 3.1 in | |
![]() |
Number of Snowy Days: | 3 days |
| detailed information | ||
forecast
| Rocky Harbour |
Temperature
| Rocky Harbour |
Air Temperature in December, °F
The highest day temperature in December 2025 was 38°F. The lowest night temperature was 8°F. The average values for day and night temperatures during December were 23.0°F и 21.6°F respectivly.
Rocky Harbour Water Sea Temperature in December, °F
The average sea surface temperature in December 2025 for Rocky Harbour was 30.8°F. The maximum and minimum values were 27.8°F and 33.6°F respectively.
Most of the days in December are gloomy but you can also expect sunny days.
Precipitation Totals in December, in
Precipitation total in December for Rocky Harbour is 3.1 in. It makes december the most rainy month of the year.
The average wind speed in December is 9.7 mph. It makes December the most windy month of the year for Rocky Harbour.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Rocky Harbour in December is 1.3 hours.
| Halifax | ![]() |
+38 |
| Kingston | ![]() |
+32 |
| Montreal | ![]() |
+34 |
| Niagara Falls | ![]() |
+42 |
| Ottawa | ![]() |
+30 |
| Prince Edward Island | ![]() |
+36 |
| Quebec | ![]() |
+28 |
| Saint John | ![]() |
+36 |
| St. John's | ![]() |
+34 |
| Sydney | ![]() |
+36 |
| Toronto | ![]() |
+36 |
| Vancouver | ![]() |
+48 |
| Victoria | ![]() |
+48 |
| Winnipeg | ![]() |
+14 |
| Yellowknife | ![]() |
-2 |
| 1800 | ![]() |
28°F | E 11 mph |
| 2100 | ![]() |
26°F | E 16 mph |
| 0000 | ![]() |
22°F | E 16 mph |
| 0300 | ![]() |
18°F | E 13 mph |
| 0600 | ![]() |
16°F | E 10 mph |
| 0900 | ![]() |
16°F | E 7 mph |
| 1200 | ![]() |
16°F | E 3 mph |
| 1500 | ![]() |
18°F | N 2 mph |




































