May weather forecastCarlsbad, CA
May
Weather in May
May brings warmer days and decreased rainfall in Carlsbad, signifying the arrival of summer. The days grow longer, and bright sunsets cover the coastal city. The humidity rises slightly making outdoor activities enjoyable in comparison to previous months. Sea temperatures continue to climb, creating perfect conditions for surfing or swimming. Albeit so, residents will encounter slightly stronger winds averaging 6mph (9.7km/h).Temperature
May commences with an average high-temperature of a pleasant 68.2°F (20.1°C), showing little deviation from April's 66.7°F (19.3°C). During the nights in May, an average low-temperature of 55°F (12.8°C) is observed.Humidity
In May, the average relative humidity is 72%.Rainfall
In Carlsbad, in May, during 6.5 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. In Carlsbad, during the entire year, the rain falls for 68.2 days and collects up to 9.49" (241mm) of precipitation.Ocean temperature
In Carlsbad, in May, the average water temperature is 63°F (17.2°C).Note: For the majority of people, swimming in water at 63°F (17.2°C) is not enjoyable. The challenge of controlling breathing escalates as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Carlsbad, the average length of the day in May is 13h and 53min.On the first day of May, sunrise is at 6:00 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:53 pm PDT.
Sunshine
In May, the average sunshine is 11h.UV index
In Carlsbad, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a regular UV index of 5 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Carlsbad, CA
- Average high temperature in May: 68.2°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 (62.4°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).
Average pressure in May
Carlsbad, CA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in May
Carlsbad, CA
- Average wind speed in May: 6mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in May
Carlsbad, CA
- Average humidity in May: 72%
The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (60%).
Average rainfall in May
Carlsbad, CA
- Average rainfall in May: 0.35"
The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in May
Carlsbad, CA
- Average rainfall days in May: 6.5 days
The month with the highest number of rainy days is March (8 days).
The month with the least rainy days is June (2.7 days).
Average sea temperature in May
Carlsbad, CA
- Average sea temperature in May: 62.9°F
The best month for swimming (with the highest average sea temperature) is August (68°F).
The coldest months (with the lowest average sea temperature) are January and February (58.7°F).
Average daylight in May /
Average sunshine in May
Carlsbad, CA
- Average daylight in May: 13h and 54min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 11h and 0min
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 36min).
Average sunshine days in May
Carlsbad, CA
- Average sunshine days in May: 21.1 days
The month with the most sunshine days is October (24.2 days).
The month with the least sunshine days is February (20 days).
Average UV index in May
Carlsbad, 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
Carlsbad, CA
- Average cloud cover in May: 21
The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in May
Carlsbad, 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).
