May weather forecastWestport, WA
May
Weather in May
The last month of the spring, May, is a refreshing month in Westport, Washington, with an average temperature fluctuating between 60.4°F (15.8°C) and 44.8°F (7.1°C).Temperature
In Westport, the average high-temperature in May slightly increases from a cool 54°F (12.2°C) in April to a mild 60.4°F (15.8°C). May nights in Westport cool down to an average low-temperature of 44.8°F (7.1°C).Humidity
The average relative humidity in May in Westport is 80%.Rainfall
In May, the rain falls for 14.1 days. Throughout May, 1.97" (50mm) of precipitation is accumulated. Throughout the year, there are 186.2 rainfall days, and 48.78" (1239mm) of precipitation is accumulated.Snowfall
In Westport, Washington, snow does not fall in April through October and December.Ocean temperature
In May, the average ocean temperature in Westport is 53.8°F (12.1°C).Note: Dipping in 53.8°F (12.1°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.
Daylight
The average length of the day in May is 15h and 5min.On the first day of May in Westport, Washington, sunrise is at 5:59 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 9:02 pm PDT.
Sunshine
In May, the average sunshine in Westport is 8h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Westport, WA
- Average high temperature in May: 60.4°F
The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is December (45.1°F).
- Average low temperature in May: 44.8°F
The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (37.6°F).
Average pressure in May
Westport, WA
- Average pressure in May: 30.05"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in May
Westport, WA
- Average wind speed in May: 6.2mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).
Average humidity in May
Westport, WA
- Average humidity in May: 80%
The months with the highest relative humidity are November and December (87%).
The month with the lowest relative humidity is July (79%).
Average rainfall in May
Westport, WA
- Average rainfall in May: 1.97"
The wettest month (with the highest rainfall) is December (7.99").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in May
Westport, WA
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is March (21.8 days).
The month with the least rainy days is August (6.7 days).
Average snowfall in May
Westport, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in May
Westport, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average sea temperature in May
Westport, WA
- Average sea temperature in May: 53.9°F
The best month for swimming (with the highest average sea temperature) is July (57.7°F).
The coldest month (with the lowest average sea temperature) is February (47.6°F).
Average daylight in May /
Average sunshine in May
Westport, WA
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in May: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
Westport, WA
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is August (21.4 days).
The months with the least sunshine days are February and November (8 days).
Average UV index in May
Westport, WA
- Average UV index in May: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Westport, WA
- Average cloud cover in May: 50
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in May
Westport, WA
- Average visibility in May: 5mi
The months with the highest visibility are March and April (6mi).
The month with the lowest visibility is August (4mi).
