May weather forecastPort Orford, OR

May
Weather in May
The last month of the spring, May, is a mild month in Port Orford, Oregon, with an average temperature fluctuating between 48.4°F (9.1°C) and 57.7°F (14.3°C).Temperature
Port Orford sees the arrival of May with an average high-temperature of a refreshing 57.7°F (14.3°C), indicating a subtle variation from April. May nights are marked by an average temperature drop to a chilly 48.4°F (9.1°C).Humidity
In May, the average relative humidity is 80%.Rainfall
In Port Orford, in May, it is raining for 7.4 days, with typically 1.1" (28mm) of accumulated precipitation. In Port Orford, during the entire year, the rain falls for 110.4 days and collects up to 22.2" (564mm) of precipitation.Snowfall
January, March through December are months without snowfall.Ocean temperature
In May, the average ocean temperature is 52.5°F (11.4°C).Note: Unprotected swimming in 52.5°F (11.4°C) is dangerous due to potential cold shock. Especially when temperatures go below 50°F (10°C), leading to hyperventilation.
Daylight
The average length of the day in May is 14h and 40min.On the first day of the month, sunrise is at 6:10 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:49 pm PDT.
Sunshine
The average sunshine in May is 10h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Port Orford, OR
- Average high temperature in May: 57.7°F
The warmest month (with the highest average high temperature) is August (66.7°F).
The month with the lowest average high temperature is February (50.5°F).
- Average low temperature in May: 48.4°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is March (43.5°F).
Average pressure in May
Port Orford, OR
- Average pressure in May: 30.05"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Port Orford, OR
- Average wind speed in May: 10.6mph
The windiest month (with the highest average wind speed) is June (11.6mph).
The calmest month (with the lowest average wind speed) is September (9.1mph).
Average humidity in May
Port Orford, OR
- Average humidity in May: 80%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is September (78%).
Average rainfall in May
Port Orford, OR
- Average rainfall in May: 1.1"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in May
Port Orford, OR
- Average rainfall days in May: 7.4 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is July (1.3 days).
Average snowfall in May
Port Orford, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Port Orford, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in May
Port Orford, OR
- Average sea temperature in May: 52.6°F
The best month for swimming (with the highest average sea temperature) is July (54.9°F).
The coldest months (with the lowest average sea temperature) are February and March (50.5°F).
Average daylight in May /
Average sunshine in May
Port Orford, OR
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Port Orford, OR
- Average sunshine days in May: 22.6 days
The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is February (13.6 days).
Average UV index in May
Port Orford, OR
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in May
Port Orford, OR
- Average cloud cover in May: 31
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in May
Port Orford, OR
- 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).





