May weather forecastWilmington, CA
May
Weather in May
The last month of the spring, May, is also an enjoyable month in Wilmington, California, with an average temperature varying between 56.8°F (13.8°C) and 67.5°F (19.7°C).Temperature
Wilmington in May witnesses an average high-temperature of a still enjoyable 67.5°F (19.7°C), indicating a slight variation from April's 65.8°F (18.8°C). In May, the nighttime temperature in Wilmington lowers to an average of 56.8°F (13.8°C).Humidity
The average relative humidity in May in Wilmington, California, is 71%.Rainfall
In May, in Wilmington, the rain falls for 4.4 days. Throughout May, 0.24" (6mm) of precipitation is accumulated. In Wilmington, during the entire year, the rain falls for 57.9 days and collects up to 6.65" (169mm) of precipitation.Daylight
In May, the average length of the day is 13h and 56min.On the first day of May in Wilmington, sunrise is at 6:03 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 7:58 pm PDT.
Sunshine
The average sunshine in May in Wilmington is 11.1h.UV index
The average daily maximum UV index in May in Wilmington is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 5 during May translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Wilmington, CA
- Average high temperature in May: 67.5°F
The warmest months (with the highest average high temperature) are August and September (75.9°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is September (64.2°F).
The coldest month (with the lowest average low temperature) is February (52.7°F).
Average pressure in May
Wilmington, CA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in May
Wilmington, CA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).
Average humidity in May
Wilmington, CA
- Average humidity in May: 71%
The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (58%).
Average rainfall in May
Wilmington, CA
- Average rainfall in May: 0.24"
The wettest month (with the highest rainfall) is January (1.3").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in May
Wilmington, CA
- Average rainfall days in May: 4.4 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is August (3 days).
Average daylight in May /
Average sunshine in May
Wilmington, CA
- Average daylight in May: 13h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 11h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in May
Wilmington, CA
- Average sunshine days in May: 21.1 days
The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is June (17.7 days).
Average UV index in May
Wilmington, CA
- Average UV index in May: 5
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in May
Wilmington, CA
- Average cloud cover in May: 20
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in May
Wilmington, 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).
