Weather Comparison
Vancouver vs Seattle
Side-by-side weather comparison for May
May Weather: Vancouver vs Seattle
| Metric | Vancouver | Seattle | Better |
|---|---|---|---|
| Average HighHigher is warmer | 17°C (63°F) | 18°C (64°F)▲ | Seattle |
| Average LowHigher is milder | 9°C (48°F)▲ | 8°C (46°F) | Vancouver |
| Rain DaysFewer is drier | 12 days▲ | 13 days | Vancouver |
| PrecipitationLess is drier | 114 mm | 76 mm▲ | Seattle |
| Sunshine HoursMore is sunnier | 11h/day | 11h/day | Tie |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 10 | 10 | Tie |
| Wind SpeedCalmer is better | 11 km/h▲ | 14 km/h | Vancouver |
Which City is Better in May?
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Vancouver edges ahead as the better destination in May. Vancouver offers 11 hours of daily sunshine with only 12 rain days, while Seattle sees 11 sunshine hours and 13 rain days.
Vancouver sits in the comfortable travel range at 17°C. Seattle is also comfortable at 18°C.
For travelers who prioritize dry weather, Vancouver is the stronger choice in May.
Temperature Comparison in May
Vancouver reaches an average high of 17°C (63°F) and drops to 9°C (48°F) at night during May. The daily temperature range is 8°C, meaning moderate variation throughout the day.
Seattle averages 18°C (64°F) for the high and 8°C (46°F) for the low, with a daily range of 10°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 May.
Rainfall Comparison in May
Vancouver receives approximately 114 mm of rainfall across 12 rain days during May. You can expect rain roughly every other day.
Seattle sees 76 mm over 13 rain days. That makes Vancouver the drier option by 1 rain day and 38 mm of total precipitation.
Both cities share similar humidity levels at 65%.
What to Pack: Vancouver vs Seattle
Packing for Vancouver in May
Highs of 17°C, lows of 9°C, 12 rain days
- ✓warm layers
- ✓a mid-weight jacket
- ✓long trousers
- ✓waterproof jacket
- ✓compact umbrella
- ✓waterproof shoes
Packing for Seattle in May
Highs of 18°C, lows of 8°C, 13 rain days
- ✓warm layers
- ✓a mid-weight jacket
- ✓long trousers
- ✓waterproof jacket
- ✓compact umbrella
- ✓waterproof shoes
Pack for both: warm layers, a mid-weight jacket, long trousers, waterproof jacket, compact umbrella, waterproof shoes. These items are useful in either destination during May.
Year-Round Comparison: Vancouver vs Seattle
The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.May is highlighted for quick reference.
| Month | Vancouver | Seattle | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 6°C | 19d | 8°C | 18d |
| Feb | 8°C | 16d | 9°C | 14d |
| Mar | 10°C | 19d | 11°C | 18d |
| Apr | 13°C | 17d | 14°C | 16d |
| May | 17°C | 12d | 18°C | 13d |
| Jun | 19°C | 11d | 21°C | 10d |
| Jul | 23°C | 7d | 25°C | 6d |
| Aug | 23°C | 7d | 25°C | 5d |
| Sep | 20°C | 10d | 21°C | 8d |
| Oct | 14°C | 16d | 15°C | 15d |
| Nov | 9°C | 20d | 10°C | 18d |
| Dec | 6°C | 19d | 7°C | 18d |
Vancouver Weather in May
Full forecast, packing tips, and activities
Seattle Weather in May
Full forecast, packing tips, and activities