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Monthly climate in Santiago Undameo, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Santiago Undameo features a tropical savanna climate (Aw). Temperatures typically range between 15 °C (59 °F) and 21 °C (70 °F) through the year, but rarely can drop to 3 °C (38 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 1097 mm (43.2 inches) and receives 150 rainy days on the 1 mm (0.04 inches) threshold annually. Santiago Undameo enjoys an average of 3467 hours of sunshine throughout the year, and daylight varies from 10 hours 58 minutes to 13 hours 16 minutes per day.

Monthly average temperatures in Santiago Undameo, Mexico

The warmest months in Santiago Undameo are April, May and June, with daily mean temperatures ranging from 20 to 21 °C (68 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 15 to 16 °C (59 - 62 °F) throughout the day. On average each year, Santiago Undameo experiences 156 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 Santiago Undameo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(83°F)		29°C
(85°F)		31°C
(88°F)		33°C
(91°F)		33°C
(92°F)		32°C
(90°F)		28°C
(82°F)		27°C
(81°F)		27°C
(82°F)		28°C
(82°F)		28°C
(83°F)		27°C
(80°F)
Mean maximum26°C
(80°F)		28°C
(83°F)		30°C
(86°F)		31°C
(88°F)		32°C
(89°F)		30°C
(85°F)		27°C
(81°F)		26°C
(80°F)		27°C
(80°F)		27°C
(80°F)		27°C
(80°F)		26°C
(79°F)
Average high23°C
(74°F)		25°C
(77°F)		27°C
(81°F)		29°C
(84°F)		29°C
(84°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		23°C
(74°F)
Daily mean15°C
(59°F)		16°C
(62°F)		19°C
(66°F)		20°C
(69°F)		21°C
(70°F)		20°C
(68°F)		19°C
(66°F)		19°C
(66°F)		18°C
(66°F)		18°C
(65°F)		17°C
(62°F)		15°C
(59°F)
Average low8°C
(47°F)		9°C
(49°F)		11°C
(52°F)		12°C
(55°F)		14°C
(57°F)		15°C
(60°F)		14°C
(58°F)		15°C
(59°F)		15°C
(58°F)		13°C
(56°F)		11°C
(51°F)		9°C
(48°F)
Mean minimum5°C
(42°F)		6°C
(44°F)		9°C
(48°F)		10°C
(50°F)		11°C
(53°F)		14°C
(57°F)		13°C
(55°F)		13°C
(55°F)		13°C
(56°F)		11°C
(51°F)		8°C
(46°F)		6°C
(43°F)
Minimum4°C
(40°F)		5°C
(41°F)		8°C
(46°F)		9°C
(48°F)		10°C
(50°F)		12°C
(54°F)		12°C
(54°F)		12°C
(54°F)		12°C
(54°F)		8°C
(47°F)		6°C
(43°F)		3°C
(38°F)

Compare climate in Santiago Undameo with other places

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

Monthly average precipitation in Santiago Undameo, Mexico

Santiago Undameo usually has the most precipitation in July, August and September, with an average of 26 rainy days and 205 mm (8.1 inches) of precipitation per month. The driest months in Santiago Undameo are January, April and December. On average, 12 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santiago Undameo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)12 (0.5)16 (0.6)17 (0.7)12 (0.5)73 (2.9)168 (6.6)199 (7.8)217 (8.5)200 (7.9)114 (4.5)59 (2.3)11 (0.4)
Average precipitation days (≥ 1 mm)334311222827241573

Monthly sunshine hours in Santiago Undameo, Mexico

The sunniest months in Santiago Undameo are March, April and May, when the sun shines an average of 10 hours 31 minutes a day. Least sunny months in Santiago Undameo: January, February and September receive an average of 8 hours 42 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santiago Undameo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours236274319320328283293287272283278289
Mean daily daylight hours11h 5m11h 30m12h 2m12h 35m13h 3m13h 16m13h 8m12h 44m12h 12m11h 40m11h 11m10h 58m

Solar UV radiation in Santiago Undameo, Mexico

Santiago Undameo experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Santiago Undameo UV Index data.

Average daily maximum UV levels by month for Santiago Undameo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10111415141414141412108