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 average high-temperature during May is a refreshing 57.6°F (14.2°C), almost matching the conditions of the preceding month. Seaside records a steady low-temperature average of 47.5°F (8.6°C) during May.Humidity
January, March through May, October and December, with an average relative humidity of 81%, are the least humid months.Rainfall
In Seaside, in May, during 12.8 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, there are 185.6 rainfall days, and 39.8" (1011mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Ocean temperature
In Seaside, in May, the average water temperature is 52.9°F (11.6°C).Note: While a brief time in 52.9°F (11.6°C) at 55.4°F (13°C) is already bracing, plunging below 50°F (10°C) can severely affect breathing and introduce a cold shock, relying on your physical state.
Daylight
In May, the average length of the day is 14h and 59min.On the first day of May, sunrise is at 6:01 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:58 pm PDT.
Sunshine
In May, the average sunshine is 8.3h.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 moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What are the least humid months?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
What is the water temperature in May?
How many hours of daylight does Seaside have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What are the months with the highest UV index in Seaside?
What is the UV index intensity in May?
Average temperature in May
Seaside, OR
- Average high temperature in May: 57.6°F
The warmest month (with the highest average high temperature) is August (65.5°F).
The month with the lowest average high temperature is December (46.6°F).
- Average low temperature in May: 47.5°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).
Average pressure in May
Seaside, OR
- Average pressure in May: 30.06"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).
Average wind speed in May
Seaside, OR
- Average wind speed in May: 7.7mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in May
Seaside, OR
- Average humidity in May: 81%
The month with the highest relative humidity is August (84%).
The months with the lowest relative humidity are January, March, April, May, October and December (81%).
Average rainfall in May
Seaside, OR
- Average rainfall in May: 1.85"
The wettest month (with the highest rainfall) is December (6.54").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in May
Seaside, OR
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is March (20.8 days).
The months with the least rainy days are July and August (7.3 days).
Average snowfall in May
Seaside, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Seaside, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in May
Seaside, OR
- Average sea temperature in May: 52.9°F
The best month for swimming (with the highest average sea temperature) is July (57.2°F).
The coldest month (with the lowest average sea temperature) is February (48.1°F).
Average daylight in May /
Average sunshine in May
Seaside, OR
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in May
Seaside, OR
- Average sunshine days in May: 15.4 days
The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (7.5 days).
Average UV index in May
Seaside, OR
- 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 February, November and December (UV index 2).
Average cloud cover in May
Seaside, OR
- Average cloud cover in May: 48
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Seaside, OR
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Seaside, Oregon, USA
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