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May Weather in Anacortes, United States

Last updated: June 24, 2025

In May, the average temperature in Anacortes, United States hovers around 12°C (55°F), with a comfortable range that sees minimums of 5°C (41°F) and maximums peaking at 23°C (73°F). You can expect about 61 mm (2.4 in) of precipitation over 10 days, contributing to an average humidity level of 81%.

May Temperature in Anacortes

In May in Anacortes, the average temperature is 12°C (55°F), with a maximum reaching 23°C (73°F) and a minimum dropping as low as 5°C (41°F). This mild climate makes it an ideal time for traveling, offering pleasant weather for exploring the area.

May Weather in Anacortes: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Anacortes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Anacortes, May typically has an average temperature of 12°C (55°F), with highs reaching up to 23°C (73°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec413944485459626459514641
Data source: Temperature data for Anacortes generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Anacortes

In Anacortes in May, the precipitation amount is 61 mm (2.4 in) over a span of 10 days.

May Precipitation Trends in Anacortes

The chart displays monthly precipitation patterns in Anacortes, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Anacortes, May typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec17117513810261522118112166226199
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Anacortes

In Anacortes in May humidity is 81%. With an average temperature of 12°C (55°F), this humidity feels like a damp blanket enveloping you, making outdoor activities feel heavier and encouraging frequent breaks to hydrate and cool off while traveling.

May Average Humidity in Anacortes

This chart illustrates the average monthly humidity levels in Anacortes, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Anacortes is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%86%86%81%83%84%77%76%88%87%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Anacortes

In Anacortes in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Anacortes.

Maximum UV Index Levels in Anacortes for May

The chart shows the monthly maximum UV Index (UVI) for Anacortes in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Anacortes typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987522
Data source: Anacortes May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Anacortes Compares to Other Months

Weather in Anacortes varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Anacortes, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Anacortes, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)171 mm (6.7 inches)86%low
February Weather4°C (40°F)175 mm (6.9 inches)85%moderate
March Weather7°C (44°F)137 mm (5.4 inches)86%moderate
April Weather9°C (49°F)102 mm (4.0 inches)86%high
May Weather12°C (55°F)61 mm (2.4 inches)81%very high
June Weather15°C (59°F)52 mm (2.0 inches)83%very high
July Weather17°C (63°F)21 mm (0.8 inches)84%very high
August Weather18°C (64°F)18 mm (0.7 inches)77%very high
September Weather15°C (60°F)112 mm (4.4 inches)76%high
October Weather11°C (51°F)166 mm (6.5 inches)88%moderate
November Weather8°C (46°F)226 mm (8.9 inches)87%low
December Weather5°C (41°F)199 mm (7.8 inches)87%low

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