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Monthly climate in Cotati, California, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Cotati features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 9 °C (49 °F) and 18 °C (65 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 36 °C (96 °F). The average annual precipitation amounts to about 648 mm (25.5 inches) and receives 52 rainy days on the 1 mm (0.04 inches) threshold annually. Cotati enjoys an average of 3381 hours of sunshine throughout the year, and daylight varies from 9 hours 32 minutes to 14 hours 46 minutes per day.

Monthly average temperatures in Cotati, California, United States §

The warmest months in Cotati are July, August and September, with daily mean temperatures ranging from 18 to 18 °C (65 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 10 °C (49 - 51 °F) throughout the day. On average each year, Cotati experiences 51 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Cotati, 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 23°C
(74°F)		 24°C
(76°F)		 25°C
(77°F)		 28°C
(82°F)		 31°C
(88°F)		 33°C
(92°F)		 32°C
(90°F)		 33°C
(92°F)		 36°C
(96°F)		 32°C
(90°F)		 25°C
(78°F)		 22°C
(72°F)
Mean maximum 19°C
(67°F)		 21°C
(70°F)		 23°C
(74°F)		 25°C
(78°F)		 28°C
(82°F)		 31°C
(87°F)		 30°C
(86°F)		 31°C
(87°F)		 32°C
(90°F)		 29°C
(85°F)		 22°C
(72°F)		 19°C
(66°F)
Average high 14°C
(57°F)		 16°C
(60°F)		 16°C
(61°F)		 18°C
(65°F)		 21°C
(69°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(76°F)		 23°C
(73°F)		 18°C
(64°F)		 14°C
(57°F)
Daily mean 10°C
(50°F)		 10°C
(51°F)		 11°C
(52°F)		 13°C
(56°F)		 15°C
(60°F)		 18°C
(65°F)		 18°C
(65°F)		 18°C
(65°F)		 18°C
(65°F)		 16°C
(61°F)		 12°C
(54°F)		 9°C
(49°F)
Average low 6°C
(43°F)		 6°C
(42°F)		 7°C
(44°F)		 9°C
(48°F)		 10°C
(51°F)		 13°C
(55°F)		 13°C
(56°F)		 14°C
(57°F)		 13°C
(56°F)		 11°C
(51°F)		 7°C
(45°F)		 5°C
(42°F)
Mean minimum 1°C
(34°F)		 0°C
(33°F)		 2°C
(36°F)		 4°C
(40°F)		 7°C
(45°F)		 10°C
(50°F)		 11°C
(52°F)		 11°C
(52°F)		 9°C
(49°F)		 6°C
(43°F)		 2°C
(35°F)		 1°C
(34°F)
Minimum -1°C
(30°F)		 -2°C
(29°F)		 1°C
(34°F)		 3°C
(38°F)		 5°C
(40°F)		 9°C
(48°F)		 11°C
(52°F)		 10°C
(51°F)		 8°C
(48°F)		 4°C
(40°F)		 0°C
(33°F)		 0°C
(33°F)

Compare climate in Cotati with other places

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

Monthly average precipitation in Cotati, California, United States §

Cotati usually has the most precipitation in January, February and December, with an average of 8 rainy days and 127 mm (5.0 inches) of precipitation per month. The driest months in Cotati are June, July and August. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Cotati, 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) 131 (5.2) 147 (5.8) 93 (3.7) 45 (1.8) 27 (1.0) 2 (0.1) 1 (0.0) 1 (0.0) 2 (0.1) 38 (1.5) 59 (2.3) 103 (4.1)
Average precipitation days (≥ 1 mm) 9 8 11 5 3 0 0 0 0 2 5 9

Monthly sunshine hours in Cotati, California, United States §

The sunniest months in Cotati are May, June and July, when the sun shines an average of 12 hours 15 minutes a day. Least sunny months in Cotati: January, February and December receive an average of 5 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cotati, 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 141 210 261 297 356 382 389 348 312 277 218 184
Mean daily daylight hours 9h 50m 10h 46m 11h 59m 13h 13m 14h 15m 14h 46m 14h 29m 13h 33m 12h 22m 11h 8m 10h 4m 9h 32m

Solar UV radiation in Cotati, California, United States §

Cotati experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / 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 4. For more detailed information, check out our hourly Cotati UV Index data.

Average daily maximum UV levels by month for Cotati, 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) 3 5 7 9 10 11 11 10 9 6 4 3

Detailed Monthly Weather Insights for Cotati, California, United States

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