May weather forecast
Wilmington, CA

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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.
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Frequently asked questions

What are May temperatures in Wilmington?

In Wilmington, 67.5°F (19.7°C) is the average high-temperature and 56.8°F (13.8°C) is the average low-temperature during May.

What is the average humidity in May in Wilmington?

In Wilmington, California, the average relative humidity in May is 71%.

How much does it rain in Wilmington in May?

In Wilmington, California, in May, during 4.4 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

How many hours of daylight does Wilmington have in May?

In May, the average day length in Wilmington is 13h and 56min.

When is the sunrise / sunset in May in Wilmington?

On the first day of May in Wilmington, California, 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.

How many hours of sunshine does Wilmington have in May?

The average sunshine duration in May is 11.1h.

What is the UV index reading in May in Wilmington?

In May, the average daily maximum UV index in Wilmington is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Wilmington, CA

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).

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Average pressure in May
Wilmington, CA

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).

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Average wind speed in May
Wilmington, CA

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).

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Average humidity in May
Wilmington, CA

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%).

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Average rainfall in May
Wilmington, CA

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").

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Average rainfall days in May
Wilmington, CA

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).

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Average daylight in May /
Average sunshine in May
Wilmington, CA

Average daylight in May / Average sunshine in May - Wilmington, CA
  • Average daylight in May: 13h and 5min

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 1min

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).

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Average sunshine days in May
Wilmington, CA

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).

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Average UV index in May
Wilmington, CA

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).

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Average cloud cover in May
Wilmington, CA

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).

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Average visibility in May
Wilmington, CA

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).

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Wilmington, California, USA

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