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 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
As May unfolds, the average high-temperature reaches a still refreshing 64.9°F (18.3°C), hinting at a slight fluctuation from the previous month. Opal Cliffs experiences an average nighttime temperature of 49.1°F (9.5°C) in the month of May.Humidity
The average relative humidity in May is 74%.Rainfall
In Opal Cliffs, in May, during 6.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. Throughout the year, there are 77.9 rainfall days, and 14.45" (367mm) of precipitation is accumulated.Ocean temperature
In May, the average ocean temperature is 54.1°F (12.3°C).Note: Immersing oneself in 54.1°F (12.3°C) at sub14°F (-10°C) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
The average length of the day in May in Opal Cliffs is 14h and 10min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:21 pm PDT.
Sunshine
In Opal Cliffs, California, the average sunshine in May is 10.3h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 4 during May leads to these advisories:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What is the usual temperature for Opal Cliffs in May?
What is the average humidity in May in Opal Cliffs?
How much does it rain in Opal Cliffs in May?
What is the ocean temperature in May in Opal Cliffs?
What is the average length of the day in May in Opal Cliffs?
What time are sunrise and sunset in May in Opal Cliffs?
How long on average sun shines in May in Opal Cliffs?
How high is the UV index in May in Opal Cliffs?
Average temperature in May
Opal Cliffs, CA
- Average high temperature in May: 64.9°F
The warmest months (with the highest average high temperature) are August and September (73°F).
The month with the lowest average high temperature is December (57.2°F).
- Average low temperature in May: 49.1°F
The month with the highest average low temperature is September (55.2°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).
Average pressure in May
Opal Cliffs, CA
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in May
Opal Cliffs, CA
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Opal Cliffs, CA
- Average humidity in May: 74%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Opal Cliffs, CA
- Average rainfall in May: 0.67"
The wettest month (with the highest rainfall) is December (2.8").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Opal Cliffs, CA
- Average rainfall days in May: 6.5 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (1.2 days).
Average sea temperature in May
Opal Cliffs, CA
- Average sea temperature in May: 54.2°F
The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).
Average daylight in May /
Average sunshine in May
Opal Cliffs, CA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 10h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in May
Opal Cliffs, CA
- Average sunshine days in May: 22.1 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (16.4 days).
Average UV index in May
Opal Cliffs, CA
- Average UV index in May: 4
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and November (UV index 3).
Average cloud cover in May
Opal Cliffs, CA
- Average cloud cover in May: 30
The month with the most cloud cover is March (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 15).
Average visibility in May
Opal Cliffs, CA
- 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).
Opal Cliffs, California, USA
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