Last updated: May 6, 2024
Under the Köppen–Geiger climate classification San Antonio features a cold desert climate (BWk).Temperatures typically range between 17 °C (63 °F) and 18 °C (65 °F) through the year, but rarely can drop to 10 °C (50 °F) or can rise to as high as 27 °C (81 °F).The average annual precipitation amounts to about 256 mm (10.1 inches) and receives 50 rainy days on the 1 mm (0.04 inches) threshold annually.San Antonio enjoys an average of 3945 hours of sunshine throughout the year, and daylight varies from 11 hours 6 minutes to 13 hours 7 minutes per day.
The warmest months in San Antonio are May, October and December, with daily mean temperatures ranging from 18 to 18 °C (65 - 65 °F) throughout the day. The coldest temperatures usually occur in January, June and July, when daily mean temperatures range from 17 to 18 °C (63 - 64 °F) throughout the day. On average each year, San Antonio experiences 9 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 | 25°C (78°F) | 24°C (76°F) | 24°C (75°F) | 25°C (78°F) | 26°C (79°F) | 26°C (79°F) | 25°C (78°F) | 26°C (79°F) | 27°C (80°F) | 27°C (81°F) | 26°C (78°F) | 25°C (78°F) |
Mean maximum | 24°C (76°F) | 23°C (74°F) | 23°C (74°F) | 25°C (77°F) | 25°C (78°F) | 24°C (75°F) | 25°C (77°F) | 25°C (78°F) | 26°C (78°F) | 26°C (78°F) | 25°C (77°F) | 25°C (77°F) |
Average high | 21°C (71°F) | 21°C (71°F) | 21°C (71°F) | 23°C (73°F) | 23°C (74°F) | 22°C (72°F) | 22°C (72°F) | 22°C (73°F) | 23°C (73°F) | 23°C (74°F) | 23°C (73°F) | 23°C (73°F) |
Daily mean | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 18°C (65°F) | 18°C (65°F) | 17°C (63°F) | 17°C (63°F) | 18°C (64°F) | 18°C (65°F) | 18°C (65°F) | 18°C (64°F) | 18°C (65°F) |
Average low | 15°C (59°F) | 15°C (60°F) | 15°C (59°F) | 15°C (59°F) | 14°C (58°F) | 14°C (57°F) | 13°C (56°F) | 14°C (57°F) | 14°C (58°F) | 15°C (59°F) | 15°C (58°F) | 15°C (59°F) |
Mean minimum | 13°C (56°F) | 14°C (57°F) | 14°C (57°F) | 12°C (55°F) | 12°C (54°F) | 11°C (53°F) | 11°C (51°F) | 11°C (52°F) | 11°C (53°F) | 12°C (54°F) | 13°C (55°F) | 13°C (55°F) |
Minimum | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 12°C (53°F) | 11°C (53°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 11°C (52°F) | 12°C (53°F) | 11°C (52°F) | 12°C (54°F) |
Compare temperature, precipitation, sunshine, UV index in San Antonio, Moquegua, Peru with other places around the world.
San Antonio usually has the most precipitation in January, February and March, with an average of 15 rainy days and 76 mm (3.0 inches) of precipitation per month.The driest months in San Antonio are May, August and September. On average, 0 mm (0.0 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 83 (3.3) | 89 (3.5) | 57 (2.3) | 8 (0.3) | 0 (0.0) | 0 (0.0) | 1 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.0) | 4 (0.1) | 13 (0.5) |
Average precipitation days (≥ 1 mm) | 16 | 17 | 13 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The sunniest months in San Antonio are October, November and December, when the sun shines an average of 11 hours 42 minutes a day.Least sunny months in San Antonio: January, February and June receive an average of 9 hours 42 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 265 | 294 | 327 | 323 | 332 | 315 | 330 | 340 | 339 | 361 | 356 | 359 |
Mean daily daylight hours | 13h 0m | 12h 38m | 12h 9m | 11h 40m | 11h 17m | 11h 6m | 11h 12m | 11h 32m | 11h 59m | 12h 29m | 12h 54m | 13h 7m |
San Antonio experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 16 - 17, which corresponds to the Extreme category of sun exposure.May, June and July are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly San Antonio UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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UV Index (month maximum) | 16 | 16 | 15 | 14 | 11 | 9 | 10 | 12 | 14 | 16 | 17 | 16 |