Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The transition from April to May brings a subtle temperature rise, with average high-temperatures increasing from a cool 54.1°F (12.3°C) to a refreshing 61.7°F (16.5°C). An average low-temperature of 46.6°F (8.1°C) is expected in Birch Bay during May.Humidity
In Birch Bay, the average relative humidity in May is 76%.Rainfall
In Birch Bay, in May, during 12.3 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, in Birch Bay, there are 176.1 rainfall days, and 43.78" (1112mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Birch Bay.Ocean temperature
In Birch Bay, Washington, in May, the average water temperature is 46°F (7.8°C).Note: Navigating the 46°F (7.8°C) at 55.4°F (13°C) is no joy, and temperatures less than 50°F (10°C) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
In Birch Bay, the average length of the day in May is 15h and 19min.On the first day of May, sunrise is at 5:48 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 9:05 pm PDT.
Sunshine
In May, the average sunshine in Birch Bay is 9.3h.UV index
In Birch Bay, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 4 suggests this advice:
Exercise prevention - Precautions against solar damage are endorsed. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What are May temperatures in Birch Bay?
What is the average humidity in May in Birch Bay?
How many days does it rain in May in Birch Bay?
When it does not snow in Birch Bay?
Does it snow in Birch Bay in May?
What is the water temperature in May in Birch Bay?
How many hours of daylight does Birch Bay have in May?
When is the sunrise / sunset in May in Birch Bay?
How many hours of sunshine does Birch Bay have in May?
What is the UV index reading in May in Birch Bay?
Average temperature in May
Birch Bay, WA
- Average high temperature in May: 61.7°F
The warmest month (with the highest average high temperature) is August (70°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in May: 46.6°F
The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (35.8°F).
Average pressure in May
Birch Bay, WA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in May
Birch Bay, WA
- Average wind speed in May: 4.5mph
The windiest months (with the highest average wind speed) are November and December (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in May
Birch Bay, WA
- Average humidity in May: 76%
The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is July (74%).
Average rainfall in May
Birch Bay, WA
- Average rainfall in May: 2.05"
The wettest month (with the highest rainfall) is November (7.13").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in May
Birch Bay, WA
- Average rainfall days in May: 12.3 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in May
Birch Bay, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Birch Bay, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Birch Bay, WA
- Average sea temperature in May: 46°F
The 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).
Average daylight in May /
Average sunshine in May
Birch Bay, WA
- Average daylight in May: 15h and 2min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in May: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).
Average sunshine days in May
Birch Bay, WA
- Average sunshine days in May: 16.4 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is November (8.8 days).
Average UV index in May
Birch Bay, WA
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Birch Bay, WA
- Average cloud cover in May: 40
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in May
Birch Bay, WA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Birch Bay, Washington, USA
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