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
During May, Morro Bay observes a subtle ascent to a pleasant 68.5°F (20.3°C) from April's 65.3°F (18.5°C) in the average high-temperature. In Morro Bay, the average low-temperature during the month of May is a cool 52.3°F (11.3°C).Humidity
In May, the average relative humidity is 67%.Rainfall
In Morro Bay, in May, during 2.6 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. In Morro Bay, during the entire year, the rain falls for 53.7 days and collects up to 8.58" (218mm) of precipitation.Ocean temperature
April and May, with an average ocean temperature of 54.3°F (12.4°C), are months with the coldest seawater.Note: Beware of 54.3°F (12.4°C) waters at 55.4°F (13°C), they're uninviting, and a dip below 50°F (10°C) has risks of breath loss and cold shock, contingent on health.
Daylight
The average length of the day in May is 14h and 2min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:49 pm. On the last day of May, in Morro Bay, sunrise is at 5:49 am and sunset at 8:12 pm PDT.
Sunshine
In Morro Bay, the average sunshine in May is 11.4h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In May, the maximum UV index of 5 suggests these recommendations:
Make use of precautions - It is urged to ward off sun damage. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
How much does it rain in May?
What are the months with the coldest ocean?
What is the ocean 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 Morro Bay have in May?
What is the UV index reading in May?
Average temperature in May
Morro Bay, CA
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is September (76.3°F).
The month with the lowest average high temperature is December (59.2°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (47.3°F).
Average pressure in May
Morro Bay, CA
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June and September (29.91"Hg).
Average wind speed in May
Morro Bay, CA
- Average wind speed in May: 7.9mph
The windiest month (with the highest average wind speed) is May (7.9mph).
The calmest months (with the lowest average wind speed) are August and September (6mph).
Average humidity in May
Morro Bay, CA
- Average humidity in May: 67%
The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are September and October (61%).
Average rainfall in May
Morro Bay, CA
- Average rainfall in May: 0.24"
The wettest month (with the highest rainfall) is January (1.81").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in May
Morro Bay, CA
- Average rainfall days in May: 2.6 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.7 days).
Average sea temperature in May
Morro Bay, CA
- Average sea temperature in May: 54.4°F
The best months for swimming (with the highest average sea temperature) are August and October (58.6°F).
The coldest month (with the lowest average sea temperature) is April (54.3°F).
Average daylight in May /
Average sunshine in May
Morro Bay, CA
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in May
Morro Bay, CA
- Average sunshine days in May: 27.8 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (20.1 days).
Average UV index in May
Morro Bay, CA
- Average UV index in May: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in May
Morro Bay, CA
- Average cloud cover in May: 16
The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are August and September (Cloud cover 7).
Average visibility in May
Morro Bay, 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).
Morro Bay, California, USA
Weather forecast for your location
2. Allow the app to use your location