Last updated: May 6, 2024
Under the Köppen–Geiger climate classification San Diego features a tropical savanna climate (Aw).Temperatures typically range between 25 °C (77 °F) and 26 °C (79 °F) through the year, but rarely can drop to 17 °C (62 °F) or can rise to as high as 34 °C (93 °F).The average annual precipitation amounts to about 3791 mm (149.3 inches) and receives 254 rainy days on the 1 mm (0.04 inches) threshold annually.San Diego enjoys an average of 3443 hours of sunshine throughout the year, and daylight varies from 11 hours 31 minutes to 12 hours 42 minutes per day.
The warmest months in San Diego are June, July and August, with daily mean temperatures ranging from 26 to 26 °C (79 - 79 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 25 to 25 °C (77 - 77 °F) throughout the day. On average each year, San Diego experiences 327 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 33°C (91°F) | 32°C (91°F) | 33°C (92°F) | 32°C (90°F) | 33°C (92°F) | 33°C (91°F) | 34°C (93°F) | 33°C (92°F) | 33°C (92°F) | 33°C (92°F) | 33°C (91°F) | 32°C (90°F) |
Mean maximum | 31°C (89°F) | 31°C (89°F) | 32°C (89°F) | 31°C (88°F) | 31°C (89°F) | 31°C (89°F) | 33°C (92°F) | 32°C (90°F) | 32°C (90°F) | 32°C (89°F) | 31°C (88°F) | 31°C (88°F) |
Average high | 29°C (85°F) | 30°C (86°F) | 29°C (85°F) | 29°C (84°F) | 29°C (85°F) | 30°C (86°F) | 31°C (87°F) | 30°C (87°F) | 29°C (85°F) | 29°C (84°F) | 28°C (84°F) | 30°C (86°F) |
Daily mean | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (78°F) | 26°C (78°F) | 26°C (79°F) | 26°C (79°F) | 26°C (79°F) | 25°C (78°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) |
Average low | 20°C (69°F) | 20°C (69°F) | 21°C (70°F) | 22°C (72°F) | 23°C (73°F) | 22°C (73°F) | 22°C (72°F) | 22°C (73°F) | 22°C (73°F) | 22°C (72°F) | 22°C (71°F) | 21°C (70°F) |
Mean minimum | 18°C (66°F) | 19°C (66°F) | 19°C (67°F) | 20°C (68°F) | 21°C (70°F) | 21°C (70°F) | 21°C (70°F) | 21°C (70°F) | 21°C (70°F) | 20°C (69°F) | 20°C (68°F) | 19°C (67°F) |
Minimum | 17°C (62°F) | 18°C (65°F) | 18°C (64°F) | 20°C (67°F) | 20°C (69°F) | 21°C (69°F) | 20°C (68°F) | 20°C (69°F) | 20°C (69°F) | 20°C (68°F) | 19°C (66°F) | 18°C (65°F) |
Compare temperature, precipitation, sunshine, UV index in San Diego, Cesar, Colombia with other places around the world.
San Diego usually has the most precipitation in May, September and October, with an average of 29 rainy days and 544 mm (21.4 inches) of precipitation per month.The driest months in San Diego are January, February and December. On average, 46 mm (1.8 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 51 (2.0) | 33 (1.3) | 195 (7.7) | 429 (16.9) | 615 (24.2) | 417 (16.4) | 287 (11.3) | 401 (15.8) | 488 (19.2) | 531 (20.9) | 291 (11.5) | 54 (2.1) |
Average precipitation days (≥ 1 mm) | 6 | 4 | 10 | 26 | 30 | 27 | 25 | 28 | 29 | 30 | 26 | 13 |
The sunniest months in San Diego are February, March and December, when the sun shines an average of 10 hours 24 minutes a day.Least sunny months in San Diego: January, May and June receive an average of 8 hours 34 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 263 | 302 | 318 | 279 | 254 | 269 | 299 | 291 | 272 | 279 | 285 | 325 |
Mean daily daylight hours | 11h 34m | 11h 47m | 12h 3m | 12h 21m | 12h 35m | 12h 42m | 12h 38m | 12h 25m | 12h 9m | 11h 52m | 11h 38m | 11h 31m |
San Diego experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure.January, November and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly San Diego UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 12 | 13 | 15 | 15 | 15 | 13 | 13 | 14 | 13 | 14 | 11 | 11 |