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 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
Summerland's weather in May, with an average high-temperature of a pleasant 68.4°F (20.2°C), subtly shifts from April's 64.9°F (18.3°C). Nightly temperatures drop to an average low of 52.2°F (11.2°C) in May.Humidity
The average relative humidity in May is 61%.Rainfall
In Summerland, in May, it is raining for 3.4 days, with typically 0.24" (6mm) of accumulated precipitation. Throughout the year, there are 46.9 rainfall days, and 7.83" (199mm) of precipitation is accumulated.Daylight
In May, the average length of the day is 13h and 58min.On the first day of May, sunrise is at 6:07 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:05 pm PDT.
Sunshine
In May, the average sunshine is 11.6h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Summerland in May?
What is the average humidity in May?
How many days does it rain in May in Summerland?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Summerland have in May?
How high is the UV index in May?
Average temperature in May
Summerland, CA
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (59.4°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (45.3°F).
Average pressure in May
Summerland, CA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.9"Hg).
Average wind speed in May
Summerland, CA
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in May
Summerland, CA
- Average humidity in May: 61%
The month with the highest relative humidity is March (63%).
The months with the lowest relative humidity are October and November (53%).
Average rainfall in May
Summerland, CA
- Average rainfall in May: 0.24"
The wettest months (with the highest rainfall) are February and March (1.46").
The driest months (with the least rainfall) are June and August (0.12").
Average rainfall days in May
Summerland, CA
- Average rainfall days in May: 3.4 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (1.5 days).
Average daylight in May /
Average sunshine in May
Summerland, CA
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 11h and 4min
The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in May
Summerland, CA
- Average sunshine days in May: 25 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is February (21.8 days).
Average UV index in May
Summerland, CA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Summerland, CA
- Average cloud cover in May: 13
The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in May
Summerland, 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).
Summerland, California, USA
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