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Monthly climate in Sinaloa, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sinaloa features a tropical savanna climate (Aw). Temperatures typically range between 22 °C (73 °F) and 27 °C (81 °F) through the year, but rarely can drop to 11 °C (52 °F) or can rise to as high as 39 °C (102 °F). The average annual precipitation amounts to about 966 mm (38.0 inches) and receives 115 rainy days on the 1 mm (0.04 inches) threshold annually. Sinaloa enjoys an average of 3607 hours of sunshine throughout the year, and daylight varies from 11 hours 10 minutes to 13 hours 2 minutes per day.

Monthly average temperatures in Sinaloa, Mexico

The warmest months in Sinaloa are April, May and July, with daily mean temperatures ranging from 26 to 27 °C (79 - 81 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 22 to 24 °C (73 - 75 °F) throughout the day. On average each year, Sinaloa experiences 325 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 Sinaloa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		36°C
(97°F)		38°C
(100°F)		39°C
(102°F)		39°C
(102°F)		35°C
(96°F)		38°C
(100°F)		37°C
(99°F)		36°C
(96°F)		34°C
(94°F)		34°C
(93°F)		34°C
(93°F)
Mean maximum33°C
(91°F)		35°C
(95°F)		36°C
(97°F)		38°C
(101°F)		37°C
(99°F)		33°C
(92°F)		36°C
(97°F)		36°C
(96°F)		34°C
(94°F)		33°C
(91°F)		32°C
(91°F)		32°C
(90°F)
Average high29°C
(85°F)		31°C
(89°F)		33°C
(92°F)		35°C
(95°F)		34°C
(93°F)		31°C
(87°F)		33°C
(91°F)		33°C
(91°F)		31°C
(88°F)		30°C
(86°F)		30°C
(86°F)		30°C
(85°F)
Daily mean22°C
(73°F)		24°C
(75°F)		25°C
(78°F)		27°C
(81°F)		27°C
(81°F)		25°C
(78°F)		26°C
(79°F)		26°C
(79°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		23°C
(73°F)
Average low17°C
(63°F)		18°C
(64°F)		19°C
(66°F)		21°C
(69°F)		22°C
(72°F)		21°C
(71°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(69°F)		19°C
(66°F)		17°C
(63°F)
Mean minimum13°C
(56°F)		15°C
(59°F)		15°C
(60°F)		17°C
(64°F)		20°C
(68°F)		20°C
(68°F)		19°C
(66°F)		19°C
(67°F)		19°C
(67°F)		18°C
(65°F)		16°C
(60°F)		14°C
(57°F)
Minimum11°C
(52°F)		13°C
(55°F)		15°C
(58°F)		16°C
(60°F)		19°C
(66°F)		19°C
(67°F)		18°C
(65°F)		18°C
(65°F)		18°C
(66°F)		17°C
(63°F)		14°C
(57°F)		12°C
(55°F)

Compare climate in Sinaloa with other places

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

Monthly average precipitation in Sinaloa, Mexico

Sinaloa usually has the most precipitation in June, September and October, with an average of 20 rainy days and 211 mm (8.3 inches) of precipitation per month. The driest months in Sinaloa are January, February and March. On average, 6 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sinaloa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)9 (0.4)5 (0.2)4 (0.2)12 (0.5)97 (3.8)223 (8.8)48 (1.9)106 (4.2)212 (8.4)197 (7.8)37 (1.5)15 (0.6)
Average precipitation days (≥ 1 mm)21021723715211863

Monthly sunshine hours in Sinaloa, Mexico

The sunniest months in Sinaloa are March, July and December, when the sun shines an average of 10 hours 23 minutes a day. Least sunny months in Sinaloa: January, February and June receive an average of 9 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sinaloa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours253286324313314274325312287291307316
Mean daily daylight hours11h 17m11h 37m12h 2m12h 29m12h 52m13h 2m12h 56m12h 37m12h 11m11h 44m11h 22m11h 10m

Solar UV radiation in Sinaloa, Mexico

Sinaloa experiences the highest level of ultraviolet (UV) radiation in April, July 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 Sinaloa UV Index data.

Average daily maximum UV levels by month for Sinaloa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10121414141415141413109