Vancouver vs Seattle

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Seattle edges ahead as the better destination in March. Seattle offers 8 hours of daily sunshine with only 18 rain days, while Vancouver sees 7 sunshine hours and 19 rain days.

Vancouver is on the cooler side at 10°C, requiring warmer clothing. Seattle is cooler at 11°C.

For travelers who prioritize dry weather, Seattle is the stronger choice in March. Seattle receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Vancouver reaches an average high of 10°C (50°F) and drops to 3°C (37°F) at night during March. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

Seattle averages 11°C (52°F) for the high and 3°C (37°F) for the low, with a daily range of 8°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in March.

Vancouver receives approximately 244 mm of rainfall across 19 rain days during March. Rain is frequent, so waterproof gear is essential.

Seattle sees 136 mm over 18 rain days. That makes Seattle the drier option by 1 rain day and 108 mm of total precipitation.

Both cities share similar humidity levels at 65%.