Last updated: June 18, 2025
In Happy Valley-Goose Bay, Canada, the average temperature in December hovers around -9°C (16°F), with extremes reaching a chilling -27°C (-15°F) at its lowest and a relatively mild 9°C (48°F) at its highest. Visitors should be prepared for 117 mm (4.6 in) of precipitation spread over 15 days, while the air remains notably damp with an average humidity of 98%.
In December in Happy Valley-Goose Bay, the average temperature is -9°C (16°F). The maximum can reach 9°C (48°F) and the minimum can be as low as -27°C (-15°F). Travelers should be prepared for extremely cold conditions and dress warmly to fully enjoy the winter scenery.
In Happy Valley-Goose Bay in December, the total precipitation amount is 117 mm (4.6 in), occurring over the course of 15 days.
In Happy Valley-Goose Bay in December, humidity is 98%. With an average temperature of -9°C (16°F), this humidity feels like an invisible weight, making every breath feel heavy and the cold air biting even more sharply, creating a challenge for travelers to navigate the frosty environment comfortably.
In Happy Valley-Goose Bay in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Happy Valley-Goose Bay.
UV Risk Categories
Weather in Happy Valley-Goose Bay varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Happy Valley-Goose Bay, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -15°C (5°F) | 74 mm (2.9 inches) | 93% | low |
| February Weather | -15°C (5°F) | 59 mm (2.3 inches) | 91% | low |
| March Weather | -8°C (17°F) | 90 mm (3.5 inches) | 88% | moderate |
| April Weather | -1°C (30°F) | 85 mm (3.4 inches) | 86% | high |
| May Weather | 5°C (41°F) | 108 mm (4.3 inches) | 85% | high |
| June Weather | 11°C (51°F) | 121 mm (4.8 inches) | 83% | very high |
| July Weather | 16°C (62°F) | 117 mm (4.6 inches) | 86% | high |
| August Weather | 16°C (61°F) | 135 mm (5.3 inches) | 87% | high |
| September Weather | 11°C (51°F) | 106 mm (4.2 inches) | 87% | moderate |
| October Weather | 5°C (41°F) | 98 mm (3.9 inches) | 89% | moderate |
| November Weather | -3°C (27°F) | 144 mm (5.7 inches) | 94% | low |
| December Weather | -9°C (16°F) | 117 mm (4.6 inches) | 98% | low |