Washington, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and Climate
Anacortes, WA

  • The average high temperature in May: 63.6°F

Warmest months (with the highest average high temperature) are July and August (72.2°F).
The month with the lowest average high temperature is January (45.1°F).

  • The average low temperature in May: 45.7°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

  • The average rainfall in May: 1.6"

Wettest months (with the highest rainfall) are November and December (3.8").
The driest month (with the lowest rainfall) is July (0.8").

  • The average rainfall days in May: 9 days

Months with the highest number of rainy days are January, November and December (17 days).
The month with the lowest number of rainy days is July (4 days).

  • The average snowfall in May: 0"

The month with the highest snowfall is January (2.1").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

  • The average sea temperature in May: 46°F

Best months for swimming (with the highest average sea temperature) are August and September (52.6°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

  • The average daylight in May: 15h

Months with the longest days are June and July (Average daylight: 16h).
The month with shortest days is December (Average daylight: 8h).

  • The average sunshine in May: 8h

The month with most sunshine is July (Average sunshine: 10h).
Months with least sunshine are January, November and December (Average sunshine: 2).

  • The average UV index in May: 6

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 1).