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Monthly climate in Poway, California, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Poway features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 12 °C (55 °F) and 24 °C (75 °F) through the year, but rarely can drop to 1 °C (34 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 445 mm (17.5 inches) and receives 45 rainy days on the 1 mm (0.04 inches) threshold annually. Poway enjoys an average of 3627 hours of sunshine throughout the year, and daylight varies from 10 hours 0 minutes to 14 hours 16 minutes per day.

Monthly average temperatures in Poway, California, United States §

The warmest months in Poway are July, August and September, with daily mean temperatures ranging from 22 to 24 °C (73 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 12 to 13 °C (55 - 55 °F) throughout the day. On average each year, Poway experiences 121 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 Poway, 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 29°C
(85°F)		 30°C
(86°F)		 29°C
(84°F)		 35°C
(94°F)		 31°C
(88°F)		 34°C
(93°F)		 40°C
(104°F)		 35°C
(96°F)		 40°C
(104°F)		 38°C
(101°F)		 33°C
(92°F)		 27°C
(82°F)
Mean maximum 26°C
(79°F)		 25°C
(78°F)		 26°C
(80°F)		 31°C
(87°F)		 29°C
(85°F)		 31°C
(88°F)		 34°C
(93°F)		 34°C
(93°F)		 35°C
(96°F)		 35°C
(95°F)		 32°C
(90°F)		 25°C
(77°F)
Average high 19°C
(66°F)		 18°C
(65°F)		 19°C
(66°F)		 21°C
(71°F)		 22°C
(72°F)		 25°C
(77°F)		 28°C
(83°F)		 29°C
(85°F)		 28°C
(83°F)		 26°C
(80°F)		 23°C
(74°F)		 19°C
(66°F)
Daily mean 12°C
(55°F)		 12°C
(55°F)		 14°C
(57°F)		 16°C
(61°F)		 17°C
(63°F)		 20°C
(68°F)		 23°C
(74°F)		 24°C
(75°F)		 22°C
(73°F)		 20°C
(68°F)		 16°C
(62°F)		 13°C
(55°F)
Average low 8°C
(46°F)		 7°C
(45°F)		 9°C
(48°F)		 11°C
(53°F)		 13°C
(56°F)		 15°C
(60°F)		 19°C
(66°F)		 19°C
(67°F)		 18°C
(64°F)		 14°C
(58°F)		 11°C
(52°F)		 8°C
(46°F)
Mean minimum 3°C
(38°F)		 2°C
(36°F)		 4°C
(40°F)		 7°C
(45°F)		 9°C
(48°F)		 12°C
(55°F)		 15°C
(60°F)		 16°C
(62°F)		 15°C
(58°F)		 9°C
(49°F)		 7°C
(45°F)		 3°C
(37°F)
Minimum 1°C
(35°F)		 1°C
(34°F)		 2°C
(36°F)		 6°C
(44°F)		 8°C
(47°F)		 12°C
(53°F)		 15°C
(58°F)		 16°C
(60°F)		 12°C
(54°F)		 7°C
(45°F)		 5°C
(41°F)		 2°C
(36°F)

Compare climate in Poway with other places

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

Monthly average precipitation in Poway, California, United States §

Poway usually has the most precipitation in February, March and December, with an average of 8 rainy days and 79 mm (3.1 inches) of precipitation per month. The driest months in Poway are June, July and August. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Poway, 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) 73 (2.9) 88 (3.5) 76 (3.0) 35 (1.4) 30 (1.2) 4 (0.2) 4 (0.1) 2 (0.1) 5 (0.2) 15 (0.6) 39 (1.5) 74 (2.9)
Average precipitation days (≥ 1 mm) 6 7 11 4 5 0 1 0 1 2 2 6

Monthly sunshine hours in Poway, California, United States §

The sunniest months in Poway are May, June and July, when the sun shines an average of 12 hours 4 minutes a day. Least sunny months in Poway: January, February and December receive an average of 7 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Poway, 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 191 242 298 324 363 368 377 361 318 296 256 227
Mean daily daylight hours 10h 14m 11h 1m 12h 0m 13h 0m 13h 51m 14h 16m 14h 2m 13h 17m 12h 19m 11h 18m 10h 26m 10h 0m

Solar UV radiation in Poway, California, United States §

Poway experiences the highest level of ultraviolet (UV) radiation in May, June and July, 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 Poway UV Index data.

Average daily maximum UV levels by month for Poway, 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 9 10 11 12 11 10 10 7 5 4

Detailed Monthly Weather Insights for Poway, California, United States

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