Last updated: June 18, 2025
In March, the average temperature in Castlegar, Canada hovers around 0°C (32°F). Expect a chilly climate where temperatures can dip as low as -20°C (-4°F) and occasionally reach a maximum of 15°C (60°F). With an average humidity of 89%, you're likely to experience a damp atmosphere. Precipitation is noteworthy, too, with about 101 mm (4.0 in) falling over 15 days. Prepare for a blend of cold and wet conditions throughout the month!
In March in Castlegar, the average temperature is 0°C (32°F). Maximums can reach 15°C (60°F), and minimums can be as low as -20°C (-4°F). Travelers should prepare for a wide range of temperatures during this time, ensuring they have both warm clothing and options for milder weather.
In Castlegar in March, the total precipitation amount is 101 mm (4.0 in) over the course of 15 days.
In Castlegar in March humidity is 89%. With an average temperature of 0°C (32°F), this humidity feels like a chilly embrace that makes every breath feel heavy and damp, turning your travel experience into a constant dance with the cold and moisture in the air, leaving you longing for warmth and comfort at every turn.
In Castlegar in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Castlegar.
UV Risk Categories
Weather in Castlegar varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Castlegar, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 100 mm (4.0 inches) | 90% | low |
| February Weather | -6°C (21°F) | 88 mm (3.5 inches) | 91% | moderate |
| March Weather | 0°C (32°F) | 101 mm (4.0 inches) | 89% | moderate |
| April Weather | 4°C (39°F) | 92 mm (3.6 inches) | 85% | high |
| May Weather | 10°C (50°F) | 78 mm (3.1 inches) | 82% | very high |
| June Weather | 14°C (58°F) | 70 mm (2.8 inches) | 81% | very high |
| July Weather | 19°C (66°F) | 32 mm (1.3 inches) | 84% | very high |
| August Weather | 18°C (65°F) | 37 mm (1.5 inches) | 75% | very high |
| September Weather | 12°C (54°F) | 69 mm (2.7 inches) | 74% | high |
| October Weather | 4°C (40°F) | 92 mm (3.6 inches) | 85% | moderate |
| November Weather | -1°C (31°F) | 118 mm (4.6 inches) | 88% | low |
| December Weather | -6°C (22°F) | 114 mm (4.5 inches) | 93% | low |