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
Harbor in May witnesses an average high-temperature of a moderate 59.2°F (15.1°C), indicating a slight variation from April's 54.5°F (12.5°C). Harbor observes an average low-temperature of 48°F (8.9°C) during May.Humidity
The average relative humidity in May is 79%.Rainfall
In May, in Harbor, the rain falls for 9 days. Throughout May, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 130.9 rainfall days, and 47.09" (1196mm) of precipitation is accumulated.Snowfall
In Harbor, snow does not fall in January, March through December.Ocean temperature
In Harbor, in May, the average water temperature is 52.3°F (11.3°C).Note: Swimming in 52.3°F (11.3°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.
Daylight
The average length of the day in May is 14h and 35min.On the first day of May, sunrise is at 6:11 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:46 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 reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In May, a daily UV index of 4 turns into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May in Harbor?
How much does it rain in May?
When it does not snow?
What is the water temperature in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Harbor have in May?
How high is the UV index in May?
Average temperature in May
Harbor, OR
- Average high temperature in May: 59.2°F
The warmest months (with the highest average high temperature) are July and August (68.5°F).
The month with the lowest average high temperature is December (50.9°F).
- Average low temperature in May: 48°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is February (43°F).
Average pressure in May
Harbor, OR
- Average pressure in May: 30.05"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30"Hg).
Average wind speed in May
Harbor, OR
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is June (10.1mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).
Average humidity in May
Harbor, OR
- Average humidity in May: 79%
The month with the highest relative humidity is March (82%).
The months with the lowest relative humidity are July and September (76%).
Average rainfall in May
Harbor, OR
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is December (8.11").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in May
Harbor, OR
- Average rainfall days in May: 9 days
The month with the highest number of rainy days is March (18.6 days).
The month with the least rainy days is July (2.2 days).
Average snowfall in May
Harbor, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.71").
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
Harbor, 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
Harbor, OR
- Average sea temperature in May: 52.4°F
The best month for swimming (with the highest average sea temperature) is July (53.5°F).
The coldest months (with the lowest average sea temperature) are January, February and April (50.8°F).
Average daylight in May /
Average sunshine in May
Harbor, OR
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- 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
Harbor, OR
- Average sunshine days in May: 20.7 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (11 days).
Average UV index in May
Harbor, OR
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in May
Harbor, OR
- Average cloud cover in May: 31
The months with the most cloud cover are January and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
Harbor, 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).
Harbor, Oregon, USA
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