May weather forecastIsla Vista, CA
May
Weather in May
The last month of the spring, May, is a pleasant month in Isla Vista, California, with an average temperature fluctuating between 53.1°F (11.7°C) and 69.4°F (20.8°C).Temperature
May's advent notes a subtle adjustment in average high-temperature to a pleasant 69.4°F (20.8°C) from April. During May, Isla Vista witnesses a consistent average low-temperature of 53.1°F (11.7°C).Humidity
In Isla Vista, the average relative humidity in May is 62%.Rainfall
In May, the rain falls for 2.4 days. Throughout May, 0.16" (4mm) of precipitation is accumulated. Throughout the year, there are 43.7 rainfall days, and 7.68" (195mm) of precipitation is accumulated.Ocean temperature
In Isla Vista, in May, the average water temperature is 55.9°F (13.3°C).Note: It is life-risking to swim in 55.9°F (13.3°C). Briefly staying in 55.4°F (13°C) waters feels unsettling, and temperatures below 50°F (10°C) might result in cold shock and loss of breath control, hinging on personal endurance.
Daylight
The average length of the day in May is 13h and 58min.On the first day of the month, sunrise is at 6:08 am and sunset at 7:44 pm. On the last day of May, sunrise is at 5:48 am and sunset at 8:06 pm PDT.
Sunshine
In Isla Vista, the average sunshine in May is 11.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 during May translates into the following guidance:
Put precautions into practice - Guidance to elude sunburn is provided. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Isla Vista, CA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (60.6°F).
- Average low temperature in May: 53.1°F
The month with the highest average low temperature is August (62.1°F).
The coldest month (with the lowest average low temperature) is February (47.7°F).
Average pressure in May
Isla Vista, CA
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in May
Isla Vista, CA
- Average wind speed in May: 8mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in May
Isla Vista, CA
- Average humidity in May: 62%
The month with the highest relative humidity is March (64%).
The months with the lowest relative humidity are September, October and November (56%).
Average rainfall in May
Isla Vista, CA
- Average rainfall in May: 0.16"
The wettest month (with the highest rainfall) is January (1.57").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in May
Isla Vista, CA
- Average rainfall days in May: 2.4 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.2 days).
Average sea temperature in May
Isla Vista, CA
- Average sea temperature in May: 56°F
The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is April (55.7°F).
Average daylight in May /
Average sunshine in May
Isla Vista, CA
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 11h and 42min
The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in May
Isla Vista, CA
- Average sunshine days in May: 27.3 days
The month with the most sunshine days is August (28 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in May
Isla Vista, CA
- Average UV index in May: 5
The months with the highest UV index are June, 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
Isla Vista, CA
- Average cloud cover in May: 12
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in May
Isla Vista, 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).
