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Monthly climate in Bolinas, California, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Bolinas features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 11 °C (51 °F) and 16 °C (62 °F) through the year, but rarely can drop to 3 °C (37 °F) or can rise to as high as 31 °C (89 °F).The average annual precipitation amounts to about 593 mm (23.4 inches) and receives 50 rainy days on the 1 mm (0.04 inches) threshold annually.Bolinas enjoys an average of 3350 hours of sunshine throughout the year, and daylight varies from 9 hours 33 minutes to 14 hours 45 minutes per day.

Monthly average temperatures in Bolinas, California, United States §

The warmest months in Bolinas are August, September and October, with daily mean temperatures ranging from 15 to 16 °C (59 - 62 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 11 °C (51 - 52 °F) throughout the day. On average each year, Bolinas experiences 1 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 Bolinas, 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 20°C
(69°F)		 20°C
(69°F)		 19°C
(66°F)		 25°C
(77°F)		 24°C
(75°F)		 28°C
(83°F)		 23°C
(74°F)		 24°C
(76°F)		 31°C
(89°F)		 27°C
(81°F)		 21°C
(69°F)		 21°C
(69°F)
Mean maximum 17°C
(63°F)		 18°C
(65°F)		 18°C
(65°F)		 21°C
(69°F)		 21°C
(70°F)		 23°C
(73°F)		 21°C
(71°F)		 22°C
(72°F)		 26°C
(79°F)		 25°C
(77°F)		 19°C
(66°F)		 17°C
(64°F)
Average high 13°C
(56°F)		 14°C
(57°F)		 14°C
(57°F)		 15°C
(59°F)		 16°C
(61°F)		 18°C
(64°F)		 17°C
(64°F)		 18°C
(65°F)		 19°C
(67°F)		 18°C
(65°F)		 16°C
(60°F)		 13°C
(56°F)
Daily mean 11°C
(51°F)		 11°C
(52°F)		 11°C
(52°F)		 12°C
(54°F)		 13°C
(56°F)		 15°C
(59°F)		 15°C
(59°F)		 16°C
(60°F)		 16°C
(62°F)		 15°C
(59°F)		 12°C
(55°F)		 11°C
(51°F)
Average low 8°C
(47°F)		 8°C
(47°F)		 9°C
(48°F)		 10°C
(50°F)		 11°C
(52°F)		 12°C
(55°F)		 13°C
(55°F)		 13°C
(56°F)		 14°C
(57°F)		 12°C
(54°F)		 10°C
(50°F)		 8°C
(47°F)
Mean minimum 4°C
(40°F)		 4°C
(40°F)		 6°C
(43°F)		 7°C
(45°F)		 9°C
(48°F)		 11°C
(51°F)		 11°C
(52°F)		 11°C
(53°F)		 11°C
(52°F)		 9°C
(48°F)		 6°C
(44°F)		 5°C
(42°F)
Minimum 3°C
(38°F)		 3°C
(37°F)		 5°C
(41°F)		 6°C
(43°F)		 7°C
(45°F)		 10°C
(50°F)		 11°C
(51°F)		 11°C
(52°F)		 10°C
(50°F)		 8°C
(47°F)		 5°C
(41°F)		 4°C
(39°F)

Compare climate in Bolinas with other places

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

Monthly average precipitation in Bolinas, California, United States §

Bolinas usually has the most precipitation in January, February and December, with an average of 8 rainy days and 117 mm (4.6 inches) of precipitation per month.The driest months in Bolinas 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 Bolinas, 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) 118 (4.7) 131 (5.1) 82 (3.2) 40 (1.6) 21 (0.8) 2 (0.1) 2 (0.1) 2 (0.1) 2 (0.1) 35 (1.4) 54 (2.1) 102 (4.0)
Average precipitation days (≥ 1 mm) 9 8 10 5 2 0 0 0 0 2 5 9

Monthly sunshine hours in Bolinas, California, United States §

The sunniest months in Bolinas are May, June and July, when the sun shines an average of 11 hours 54 minutes a day.Least sunny months in Bolinas: January, February and December receive an average of 6 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bolinas, 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 146 214 264 298 351 371 373 335 306 275 221 190
Mean daily daylight hours 9h 51m 10h 47m 11h 59m 13h 12m 14h 14m 14h 45m 14h 28m 13h 33m 12h 22m 11h 9m 10h 5m 9h 33m

Solar UV radiation in Bolinas, California, United States §

Bolinas 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 Bolinas UV Index data.

Average daily maximum UV levels by month for Bolinas, 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 8 9 10 11 11 10 9 7 4 3