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
Westminster marks the onset of May with an average high-temperature of a still agreeable 69.4°F (20.8°C), a subtle shift from April's 68.2°F (20.1°C). Nightly temperatures drop to an average low of 56.8°F (13.8°C) in May.Humidity
In May, the average relative humidity is 68%.Rainfall
May is the last month it rains. During 1.5 rainfall days, in May, Westminster aggregates 0.04" (1mm) of precipitation. In Westminster, during the entire year, the rain falls for 25.2 days and collects up to 1.57" (40mm) of precipitation.Daylight
The average length of the day in May is 13h and 56min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:35 pm. On the last day of May, sunrise is at 5:42 am and sunset at 7:57 pm PDT.
Sunshine
The average sunshine in May is 11.2h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 5 in May translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
What is the last month it rains?
How many hours of daylight does Westminster have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Westminster have in May?
What is the UV index reading in May in Westminster?
Average temperature in May
Westminster, CA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is September (65.1°F).
The coldest month (with the lowest average low temperature) is February (52°F).
Average pressure in May
Westminster, CA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in May
Westminster, CA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest months (with the lowest average wind speed) are September and October (5.2mph).
Average humidity in May
Westminster, CA
- Average humidity in May: 68%
The month with the highest relative humidity is June (71%).
The month with the lowest relative humidity is November (56%).
Average rainfall in May
Westminster, CA
- Average rainfall in May: 0.04"
The wettest month (with the highest rainfall) is December (0.35").
The driest month (with the least rainfall) is June (0").
Average rainfall days in May
Westminster, CA
- Average rainfall days in May: 1.5 days
The month with the highest number of rainy days is March (4.6 days).
The month with the least rainy days is June (0.7 days).
Average daylight in May /
Average sunshine in May
Westminster, 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 months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in May
Westminster, CA
- Average sunshine days in May: 29 days
The months with the most sunshine days are May and June (29 days).
The month with the least sunshine days is February (24.4 days).
Average UV index in May
Westminster, 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, November and December (UV index 4).
Average cloud cover in May
Westminster, CA
- Average cloud cover in May: 19
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in May
Westminster, 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).
Westminster, California, USA
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