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Monthly climate in San Ignacio, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Ignacio features a hot desert climate (BWh). Temperatures typically range between 16 °C (62 °F) and 30 °C (86 °F) through the year, but rarely can drop to 3 °C (37 °F) or can rise to as high as 43 °C (110 °F). The average annual precipitation amounts to about 117 mm (4.6 inches) and receives 10 rainy days on the 1 mm (0.04 inches) threshold annually. San Ignacio enjoys an average of 3644 hours of sunshine throughout the year, and daylight varies from 10 hours 26 minutes to 13 hours 49 minutes per day.

Monthly average temperatures in San Ignacio, Mexico

The warmest months in San Ignacio are July, August and September, with daily mean temperatures ranging from 28 to 30 °C (83 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 16 to 17 °C (62 - 63 °F) throughout the day. On average each year, San Ignacio experiences 255 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 San Ignacio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(92°F)		34°C
(94°F)		37°C
(99°F)		38°C
(100°F)		39°C
(102°F)		41°C
(105°F)		42°C
(108°F)		43°C
(110°F)		43°C
(109°F)		42°C
(108°F)		38°C
(101°F)		31°C
(88°F)
Mean maximum30°C
(86°F)		31°C
(88°F)		33°C
(93°F)		37°C
(99°F)		36°C
(97°F)		38°C
(101°F)		41°C
(106°F)		42°C
(108°F)		40°C
(104°F)		38°C
(100°F)		34°C
(94°F)		29°C
(85°F)
Average high24°C
(75°F)		24°C
(76°F)		27°C
(80°F)		30°C
(86°F)		30°C
(87°F)		34°C
(94°F)		37°C
(99°F)		38°C
(100°F)		35°C
(96°F)		32°C
(91°F)		28°C
(84°F)		24°C
(75°F)
Daily mean16°C
(62°F)		17°C
(63°F)		19°C
(66°F)		21°C
(71°F)		22°C
(71°F)		25°C
(78°F)		29°C
(85°F)		30°C
(86°F)		28°C
(83°F)		25°C
(77°F)		21°C
(70°F)		17°C
(62°F)
Average low10°C
(50°F)		10°C
(51°F)		11°C
(53°F)		14°C
(57°F)		14°C
(58°F)		18°C
(65°F)		23°C
(73°F)		24°C
(75°F)		22°C
(73°F)		18°C
(65°F)		15°C
(59°F)		10°C
(51°F)
Mean minimum5°C
(42°F)		5°C
(42°F)		7°C
(45°F)		9°C
(49°F)		10°C
(51°F)		13°C
(56°F)		20°C
(68°F)		20°C
(69°F)		17°C
(62°F)		12°C
(55°F)		10°C
(50°F)		5°C
(41°F)
Minimum4°C
(40°F)		3°C
(37°F)		6°C
(42°F)		8°C
(47°F)		9°C
(49°F)		12°C
(53°F)		19°C
(66°F)		19°C
(67°F)		12°C
(54°F)		11°C
(51°F)		8°C
(47°F)		3°C
(37°F)

Compare climate in San Ignacio with other places

Compare temperature, precipitation, sunshine, UV index in San Ignacio, Mexico with other places around the world.

Monthly average precipitation in San Ignacio, Mexico

San Ignacio usually has the most precipitation in March, September and November, with an average of 1 rainy days and 20 mm (0.8 inches) of precipitation per month. The driest months in San Ignacio are April, May and June. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Ignacio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)12 (0.5)10 (0.4)14 (0.6)0 (0.0)0 (0.0)0 (0.0)2 (0.1)8 (0.3)28 (1.1)13 (0.5)16 (0.6)12 (0.5)
Average precipitation days (≥ 1 mm)111000012112

Monthly sunshine hours in San Ignacio, Mexico

The sunniest months in San Ignacio are May, June and July, when the sun shines an average of 11 hours 44 minutes a day. Least sunny months in San Ignacio: January, February and December receive an average of 7 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Ignacio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours214244295325357361360341312304263262
Mean daily daylight hours10h 37m11h 14m12h 1m12h 49m13h 29m13h 49m13h 38m13h 2m12h 16m11h 28m10h 46m10h 26m

Solar UV radiation in San Ignacio, Mexico

San Ignacio experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 12 - 12, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly San Ignacio UV Index data.

Average daily maximum UV levels by month for San Ignacio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)6810121212121212975