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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 tropical savanna climate (As). Temperatures typically range between 19 °C (66 °F) and 27 °C (82 °F) through the year, but rarely can drop to 3 °C (38 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 763 mm (30.0 inches) and receives 91 rainy days on the 1 mm (0.04 inches) threshold annually. San Ignacio enjoys an average of 3502 hours of sunshine throughout the year, and daylight varies from 10 hours 40 minutes to 13 hours 34 minutes per day.

Monthly average temperatures in San Ignacio, Mexico

The warmest months in San Ignacio are June, July and August, with daily mean temperatures ranging from 27 to 27 °C (80 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 19 to 20 °C (66 - 68 °F) throughout the day. On average each year, San Ignacio experiences 317 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)		35°C
(94°F)		35°C
(95°F)		37°C
(99°F)		38°C
(101°F)		38°C
(101°F)		37°C
(99°F)		35°C
(95°F)		34°C
(93°F)		35°C
(95°F)		35°C
(96°F)		33°C
(91°F)
Mean maximum32°C
(90°F)		33°C
(92°F)		34°C
(94°F)		36°C
(97°F)		37°C
(98°F)		36°C
(98°F)		36°C
(96°F)		34°C
(93°F)		33°C
(92°F)		34°C
(93°F)		33°C
(92°F)		31°C
(89°F)
Average high28°C
(82°F)		28°C
(84°F)		31°C
(88°F)		33°C
(91°F)		34°C
(93°F)		34°C
(93°F)		32°C
(90°F)		31°C
(88°F)		31°C
(87°F)		31°C
(88°F)		30°C
(87°F)		28°C
(83°F)
Daily mean19°C
(66°F)		20°C
(68°F)		22°C
(72°F)		24°C
(75°F)		26°C
(79°F)		27°C
(82°F)		27°C
(81°F)		27°C
(80°F)		26°C
(79°F)		25°C
(78°F)		23°C
(73°F)		20°C
(68°F)
Average low11°C
(53°F)		12°C
(55°F)		13°C
(55°F)		15°C
(60°F)		18°C
(65°F)		22°C
(73°F)		23°C
(73°F)		23°C
(74°F)		22°C
(72°F)		20°C
(69°F)		16°C
(61°F)		13°C
(55°F)
Mean minimum7°C
(45°F)		8°C
(47°F)		10°C
(49°F)		10°C
(51°F)		15°C
(58°F)		20°C
(68°F)		21°C
(70°F)		21°C
(70°F)		20°C
(69°F)		16°C
(61°F)		11°C
(53°F)		9°C
(48°F)
Minimum3°C
(38°F)		8°C
(46°F)		7°C
(46°F)		9°C
(48°F)		13°C
(56°F)		18°C
(64°F)		20°C
(68°F)		20°C
(69°F)		19°C
(67°F)		14°C
(58°F)		11°C
(52°F)		7°C
(45°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 July, August and September, with an average of 23 rainy days and 189 mm (7.4 inches) of precipitation per month. The driest months in San Ignacio are March, April and May. On average, 1 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)10 (0.4)29 (1.1)1 (0.0)0 (0.0)1 (0.0)41 (1.6)151 (6.0)241 (9.5)176 (6.9)77 (3.0)20 (0.8)17 (0.7)
Average precipitation days (≥ 1 mm)1200062225231011

Monthly sunshine hours in San Ignacio, Mexico

The sunniest months in San Ignacio are April, May and June, when the sun shines an average of 11 hours 7 minutes a day. Least sunny months in San Ignacio: January, February and September receive an average of 8 hours 21 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 hours224260315328359324296283267291275275
Mean daily daylight hours10h 49m11h 21m12h 1m12h 43m13h 17m13h 34m13h 25m12h 54m12h 14m11h 33m10h 57m10h 40m

Solar UV radiation in San Ignacio, Mexico

San Ignacio experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure. January, November and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. 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)710111313121212121186