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
Transitioning from April to May, Harbor observes an average high-temperature of a mild 59.2°F (15.1°C), differing subtly from the previous month. Harbor's nights in May cool down to an average low-temperature of 48°F (8.9°C).Humidity
In Harbor, the average relative humidity in May is 79%.Rainfall
In Harbor, during May, the rain falls for 9 days and regularly aggregates up to 2.36" (60mm) of precipitation. 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, Oregon, the average seawater temperature in May is 52.3°F (11.3°C).Note: Dipping in 52.3°F (11.3°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.
Daylight
In May, the average length of the day in Harbor is 14h and 35min.On the first day of the month, sunrise is at 6:11 am and sunset at 8:16 pm. On the last day of May, sunrise is at 5:43 am and sunset at 8:46 pm PDT.
Sunshine
The average sunshine in May in Harbor is 10h.UV index
In Harbor, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 4 during May leads to these instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What is the temperature in May in Harbor?
What is the average humidity in May in Harbor?
How much does it rain in Harbor in May?
When it does not snow in Harbor?
What is the ocean temperature in May in Harbor?
What is the average length of the day in May in Harbor?
When is the sunrise / sunset in May in Harbor?
How many hours of sunshine does Harbor have in May?
What is the UV index reading in May in Harbor?
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
Weather forecast for your location
2. Allow the app to use your location
