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
The onset of May brings an average high-temperature of an agreeable 68.2°F (20.1°C), nearly matching the April temperature. During May, the nighttime temperature in Seal Beach averages of 57.4°F (14.1°C).Humidity
In Seal Beach, the average relative humidity in May is 70%.Rainfall
In Seal Beach, in May, it is raining for 4.3 days, with typically 0.28" (7mm) of accumulated precipitation. In Seal Beach, during the entire year, the rain falls for 57.8 days and collects up to 8.82" (224mm) of precipitation.Ocean temperature
In Seal Beach, the average seawater temperature in May is 62.1°F (16.7°C).Note: For the majority, swimming in water with a temperature of 62.1°F (16.7°C) is not enjoyable. The difficulty in managing breathing rises as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Seal Beach, California, the average length of the day in May is 13h and 56min.On the first day of May in Seal Beach, sunrise is at 6:02 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:57 pm PDT.
Sunshine
In Seal Beach, the average sunshine in May is 11.2h.UV index
In Seal Beach, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 5 in May translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What are May temperatures in Seal Beach?
What is the average humidity in May in Seal Beach?
How much does it rain in Seal Beach in May?
What is the ocean temperature in May in Seal Beach?
How many hours of daylight does Seal Beach have in May?
When is the sunrise / sunset in May in Seal Beach?
How long on average sun shines in May in Seal Beach?
What is the UV index reading in May in Seal Beach?
Average temperature in May
Seal Beach, CA
- Average high temperature in May: 68.2°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (62.8°F).
- Average low temperature in May: 57.4°F
The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is February (52.7°F).
Average pressure in May
Seal Beach, 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
Seal Beach, CA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.3mph).
Average humidity in May
Seal Beach, CA
- Average humidity in May: 70%
The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (57%).
Average rainfall in May
Seal Beach, CA
- Average rainfall in May: 0.28"
The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
Seal Beach, CA
- Average rainfall days in May: 4.3 days
The month with the highest number of rainy days is March (8.1 days).
The months with the least rainy days are June and August (2.3 days).
Average sea temperature in May
Seal Beach, CA
- Average sea temperature in May: 62.1°F
The best months for swimming (with the highest average sea temperature) are July and August (67.9°F).
The coldest month (with the lowest average sea temperature) is January (58.3°F).
Average daylight in May /
Average sunshine in May
Seal Beach, 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: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in May
Seal Beach, CA
- Average sunshine days in May: 23.1 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (19.3 days).
Average UV index in May
Seal Beach, 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
Seal Beach, 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
Seal Beach, 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).
Seal Beach, California, USA
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