Last updated: June 18, 2025
In December, the average temperature in Port Rowan, Canada hovers around 2°C (36°F). While you may experience chilly minima dipping to -10°C (13°F), it's balanced by warmer maxima reaching 12°C (53°F). Be prepared for 109 mm (4.3 in) of precipitation spread over 16 days, contributing to a high average humidity of 87%.
In December in Port Rowan, the average temperature is 2°C (36°F). Maximum temperatures can reach 12°C (53°F), while the minimum can drop as low as -10°C (13°F). Be prepared for chilly weather and pack accordingly if you plan to travel during this time.
In Port Rowan in December, the precipitation amount is 109 mm (4.3 in) spread over 16 days.
In Port Rowan in December, humidity is 87%. With an average temperature of 2°C (36°F), this humidity feels like an unwelcome chill that seeps into your bones, making outdoor exploration feel damp and heavy, and encouraging travelers to seek the warmth of indoor attractions instead.
In Port Rowan in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Port Rowan, you can visit Hourly UV Index in Port Rowan.
UV Risk Categories
Weather in Port Rowan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Port Rowan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (30°F) | 91 mm (3.6 inches) | 90% | low |
| February Weather | -2°C (29°F) | 89 mm (3.5 inches) | 90% | moderate |
| March Weather | 0°C (33°F) | 92 mm (3.6 inches) | 87% | moderate |
| April Weather | 4°C (40°F) | 104 mm (4.1 inches) | 87% | very high |
| May Weather | 10°C (51°F) | 106 mm (4.2 inches) | 82% | very high |
| June Weather | 17°C (64°F) | 80 mm (3.2 inches) | 81% | very high |
| July Weather | 22°C (72°F) | 89 mm (3.5 inches) | 79% | very high |
| August Weather | 22°C (72°F) | 87 mm (3.4 inches) | 80% | very high |
| September Weather | 19°C (67°F) | 85 mm (3.3 inches) | 81% | very high |
| October Weather | 14°C (57°F) | 132 mm (5.2 inches) | 84% | high |
| November Weather | 6°C (43°F) | 115 mm (4.5 inches) | 88% | moderate |
| December Weather | 2°C (36°F) | 109 mm (4.3 inches) | 87% | low |