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Monthly climate in Isla Vista, California, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Isla Vista features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 12 °C (53 °F) and 22 °C (72 °F) through the year, but rarely can drop to 2 °C (36 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 400 mm (15.7 inches) and receives 33 rainy days on the 1 mm (0.04 inches) threshold annually. Isla Vista enjoys an average of 3609 hours of sunshine throughout the year, and daylight varies from 9 hours 52 minutes to 14 hours 24 minutes per day.

Monthly average temperatures in Isla Vista, California, United States §

The warmest months in Isla Vista are July, August and September, with daily mean temperatures ranging from 21 to 22 °C (70 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 12 to 12 °C (53 - 54 °F) throughout the day. On average each year, Isla Vista experiences 67 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Isla Vista, California, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 27°C
(81°F)		 25°C
(78°F)		 25°C
(77°F)		 30°C
(86°F)		 29°C
(85°F)		 33°C
(91°F)		 36°C
(97°F)		 33°C
(92°F)		 36°C
(97°F)		 33°C
(92°F)		 28°C
(83°F)		 24°C
(75°F)
Mean maximum 23°C
(73°F)		 21°C
(71°F)		 23°C
(73°F)		 27°C
(80°F)		 26°C
(78°F)		 29°C
(84°F)		 31°C
(89°F)		 31°C
(88°F)		 31°C
(89°F)		 30°C
(86°F)		 27°C
(82°F)		 22°C
(72°F)
Average high 16°C
(62°F)		 16°C
(61°F)		 17°C
(62°F)		 20°C
(68°F)		 21°C
(69°F)		 23°C
(75°F)		 26°C
(78°F)		 26°C
(79°F)		 25°C
(77°F)		 23°C
(74°F)		 20°C
(68°F)		 17°C
(62°F)
Daily mean 12°C
(54°F)		 12°C
(53°F)		 12°C
(55°F)		 15°C
(60°F)		 16°C
(62°F)		 19°C
(67°F)		 22°C
(72°F)		 22°C
(72°F)		 21°C
(70°F)		 18°C
(65°F)		 15°C
(60°F)		 12°C
(54°F)
Average low 8°C
(47°F)		 8°C
(46°F)		 8°C
(48°F)		 11°C
(52°F)		 12°C
(54°F)		 15°C
(60°F)		 18°C
(64°F)		 18°C
(65°F)		 16°C
(62°F)		 14°C
(57°F)		 11°C
(52°F)		 8°C
(47°F)
Mean minimum 4°C
(39°F)		 3°C
(38°F)		 4°C
(39°F)		 7°C
(45°F)		 8°C
(47°F)		 11°C
(53°F)		 14°C
(58°F)		 15°C
(59°F)		 12°C
(53°F)		 9°C
(48°F)		 7°C
(44°F)		 4°C
(40°F)
Minimum 3°C
(37°F)		 2°C
(36°F)		 3°C
(37°F)		 6°C
(42°F)		 7°C
(45°F)		 10°C
(51°F)		 14°C
(57°F)		 14°C
(58°F)		 9°C
(48°F)		 7°C
(45°F)		 3°C
(38°F)		 3°C
(38°F)

Compare climate in Isla Vista with other places

Compare temperature, precipitation, sunshine, UV index in Isla Vista, California, United States with other places around the world.

Monthly average precipitation in Isla Vista, California, United States §

Isla Vista usually has the most precipitation in January, February and March, with an average of 7 rainy days and 87 mm (3.4 inches) of precipitation per month. The driest months in Isla Vista are July, August and September. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Isla Vista, California, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 93 (3.7) 81 (3.2) 88 (3.5) 21 (0.8) 12 (0.5) 4 (0.1) 2 (0.1) 2 (0.1) 2 (0.1) 10 (0.4) 23 (0.9) 62 (2.5)
Average precipitation days (≥ 1 mm) 6 6 9 2 2 1 0 0 0 0 1 6

Monthly sunshine hours in Isla Vista, California, United States §

The sunniest months in Isla Vista are May, June and July, when the sun shines an average of 12 hours 10 minutes a day. Least sunny months in Isla Vista: January, February and December receive an average of 7 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Isla Vista, California, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 185 232 287 328 367 369 383 360 316 294 255 227
Mean daily daylight hours 10h 8m 10h 57m 11h 59m 13h 4m 13h 58m 14h 24m 14h 9m 13h 21m 12h 20m 11h 16m 10h 20m 9h 52m

Solar UV radiation in Isla Vista, California, United States §

Isla Vista experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Isla Vista UV Index data.

Average daily maximum UV levels by month for Isla Vista, California, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 4 6 8 10 11 11 12 11 10 7 5 4

Detailed Monthly Weather Insights for Isla Vista, California, United States

Discover in-depth weather details for every month in Isla Vista. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Isla Vista's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.