Skip to content

Weather Comparison

Vancouver vs Seattle

Side-by-side weather comparison for May

Vancouver: 17°CSeattle: 18°C195 km apart

May Weather: Vancouver vs Seattle

MetricVancouverSeattleBetter
Average HighHigher is warmer17°C (63°F)18°C (64°F)Seattle
Average LowHigher is milder9°C (48°F)8°C (46°F)Vancouver
Rain DaysFewer is drier12 days13 daysVancouver
PrecipitationLess is drier114 mm76 mmSeattle
Sunshine HoursMore is sunnier11h/day11h/dayTie
HumidityLower is more comfortable65%65%Tie
UV IndexLower is safer1010Tie
Wind SpeedCalmer is better11 km/h14 km/hVancouver

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.

MonthVancouverSeattle
HighRainHighRain
Jan6°C19d8°C18d
Feb8°C16d9°C14d
Mar10°C19d11°C18d
Apr13°C17d14°C16d
May17°C12d18°C13d
Jun19°C11d21°C10d
Jul23°C7d25°C6d
Aug23°C7d25°C5d
Sep20°C10d21°C8d
Oct14°C16d15°C15d
Nov9°C20d10°C18d
Dec6°C19d7°C18d
17°

Vancouver Weather in May

Full forecast, packing tips, and activities

18°

Seattle Weather in May

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Vancouver warmer than Seattle in May?
No. In May, Seattle is warmer with an average high of 18°C (64°F) compared to Vancouver at 17°C (63°F), a difference of 1°C.
Which city gets more rain in May, Vancouver or Seattle?
Seattle gets more rain in May with 13 rain days and 114 mm of precipitation. Vancouver is the drier option with 12 rain days.
Is it better to visit Vancouver or Seattle in May?
It depends on your preferences. Vancouver averages 17°C and 11 hours of daily sunshine with 12 rain days. Seattle averages 18°C with 11 sunshine hours and 13 rain days. If you prefer cooler conditions, choose Seattle. For drier weather, Vancouver is the better pick.
How far apart are Vancouver and Seattle?
Vancouver and Seattle are approximately 195 km (121 miles) apart. Vancouver is located in Canada (North America) while Seattle is in United States (North America).
What is the best month to visit Vancouver and Seattle?
For Vancouver, July tends to be the best month with 13 hours of daily sunshine and a high of 23°C. For Seattle, July is typically ideal with 13 sunshine hours and 25°C highs.

Compare Vancouver and Seattle in Other Months

Climate data sourced from the Open-Meteo Historical Weather API, using ERA5 reanalysis data covering 30-year normals from 1991 to 2020. All temperatures shown in Celsius with Fahrenheit equivalents. Rain days count days with 1 mm or more of precipitation. Sunshine hours represent average daily values. This comparison is generated from long-term climate averages and individual trips may vary.

Vancouver coordinates: 49.28°N, -123.12°E | Seattle coordinates: 47.61°N, -122.33°E