Monthly climate in Cayucos, California, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Cayucos features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 12 °C (55 °F) and 19 °C (67 °F) through the year, but rarely can drop to 5 °C (41 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 404 mm (15.9 inches) and receives 36 rainy days on the 1 mm (0.04 inches) threshold annually. Cayucos enjoys an average of 3526 hours of sunshine throughout the year, and daylight varies from 9 hours 46 minutes to 14 hours 30 minutes per day.

Monthly average temperatures in Cayucos, California, United States §

The warmest months in Cayucos are July, August and September, with daily mean temperatures ranging from 18 to 19 °C (65 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 12 to 13 °C (55 - 55 °F) throughout the day. On average each year, Cayucos experiences 10 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 Cayucos, 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 21°C
(70°F)
24°C
(75°F)
25°C
(76°F)
26°C
(79°F)
23°C
(74°F)
27°C
(82°F)
29°C
(84°F)
29°C
(84°F)
34°C
(93°F)
29°C
(85°F)
24°C
(76°F)
23°C
(74°F)
Mean maximum 19°C
(67°F)
20°C
(69°F)
20°C
(69°F)
23°C
(73°F)
21°C
(71°F)
24°C
(75°F)
25°C
(78°F)
26°C
(78°F)
28°C
(83°F)
27°C
(81°F)
23°C
(74°F)
20°C
(68°F)
Average high 15°C
(60°F)
15°C
(60°F)
15°C
(59°F)
16°C
(62°F)
17°C
(63°F)
19°C
(66°F)
20°C
(69°F)
21°C
(70°F)
21°C
(71°F)
21°C
(70°F)
18°C
(65°F)
16°C
(60°F)
Daily mean 12°C
(55°F)
12°C
(55°F)
13°C
(55°F)
14°C
(58°F)
15°C
(59°F)
17°C
(62°F)
18°C
(65°F)
19°C
(66°F)
19°C
(67°F)
18°C
(65°F)
15°C
(60°F)
13°C
(55°F)
Average low 10°C
(50°F)
10°C
(50°F)
10°C
(51°F)
12°C
(53°F)
13°C
(55°F)
14°C
(58°F)
16°C
(61°F)
17°C
(62°F)
17°C
(62°F)
15°C
(60°F)
13°C
(55°F)
10°C
(51°F)
Mean minimum 7°C
(45°F)
6°C
(44°F)
8°C
(46°F)
9°C
(49°F)
11°C
(51°F)
12°C
(54°F)
14°C
(57°F)
14°C
(58°F)
13°C
(56°F)
13°C
(56°F)
9°C
(49°F)
7°C
(45°F)
Minimum 6°C
(43°F)
5°C
(41°F)
6°C
(43°F)
8°C
(46°F)
9°C
(48°F)
11°C
(53°F)
13°C
(56°F)
14°C
(57°F)
13°C
(56°F)
12°C
(54°F)
7°C
(44°F)
6°C
(43°F)

Compare climate in Cayucos with other places

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

Monthly average precipitation in Cayucos, California, United States §

Cayucos 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 Cayucos are June, July and September. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Cayucos, 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) 114 (4.5) 73 (2.9) 73 (2.9) 23 (0.9) 10 (0.4) 1 (0.0) 1 (0.0) 1 (0.0) 1 (0.0) 10 (0.4) 27 (1.1) 70 (2.8)
Average precipitation days (≥ 1 mm) 6 6 9 3 2 0 0 0 0 0 4 6

Monthly sunshine hours in Cayucos, California, United States §

The sunniest months in Cayucos are May, June and July, when the sun shines an average of 12 hours 10 minutes a day. Least sunny months in Cayucos: January, February and December receive an average of 6 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cayucos, 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 172 225 276 309 363 372 384 355 312 293 241 218
Mean daily daylight hours 10h 3m 10h 54m 11h 59m 13h 6m 14h 3m 14h 30m 14h 15m 13h 25m 12h 20m 11h 14m 10h 15m 9h 46m

Solar UV radiation in Cayucos, California, United States §

Cayucos experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure. January, February 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 Cayucos UV Index data.

Average daily maximum UV levels by month for Cayucos, 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 5 8 9 11 12 11 11 9 7 5 3

Detailed Monthly Weather Insights for Cayucos, California, United States

Discover in-depth weather details for every month in Cayucos. 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 Cayucos'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.