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Monthly climate in San Juan Mazatlan, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Juan Mazatlan features a tropical savanna climate (Aw). Temperatures typically range between 19 °C (66 °F) and 25 °C (78 °F) through the year, but rarely can drop to 8 °C (47 °F) or can rise to as high as 36 °C (96 °F). The average annual precipitation amounts to about 1816 mm (71.5 inches) and receives 190 rainy days on the 1 mm (0.04 inches) threshold annually. San Juan Mazatlan enjoys an average of 3410 hours of sunshine throughout the year, and daylight varies from 11 hours 7 minutes to 13 hours 6 minutes per day.

Monthly average temperatures in San Juan Mazatlan, Mexico

The warmest months in San Juan Mazatlan are April, May and June, with daily mean temperatures ranging from 24 to 25 °C (76 - 78 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 19 to 20 °C (66 - 68 °F) throughout the day. On average each year, San Juan Mazatlan experiences 243 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 Juan Mazatlan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum32°C
(90°F)		33°C
(91°F)		35°C
(94°F)		35°C
(96°F)		36°C
(96°F)		34°C
(93°F)		32°C
(90°F)		33°C
(91°F)		33°C
(92°F)		33°C
(92°F)		32°C
(89°F)		32°C
(89°F)
Mean maximum31°C
(88°F)		32°C
(90°F)		34°C
(94°F)		35°C
(94°F)		35°C
(95°F)		32°C
(89°F)		31°C
(88°F)		31°C
(89°F)		32°C
(90°F)		31°C
(89°F)		30°C
(85°F)		31°C
(87°F)
Average high23°C
(74°F)		26°C
(78°F)		28°C
(82°F)		30°C
(87°F)		31°C
(88°F)		29°C
(84°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		27°C
(81°F)		24°C
(76°F)		24°C
(75°F)
Daily mean19°C
(66°F)		20°C
(69°F)		22°C
(71°F)		24°C
(76°F)		25°C
(78°F)		24°C
(76°F)		24°C
(75°F)		23°C
(75°F)		24°C
(75°F)		23°C
(73°F)		20°C
(68°F)		19°C
(66°F)
Average low15°C
(59°F)		16°C
(61°F)		17°C
(63°F)		19°C
(66°F)		21°C
(69°F)		21°C
(69°F)		20°C
(68°F)		20°C
(68°F)		20°C
(68°F)		19°C
(67°F)		16°C
(62°F)		15°C
(59°F)
Mean minimum10°C
(51°F)		10°C
(51°F)		13°C
(55°F)		14°C
(58°F)		17°C
(64°F)		19°C
(66°F)		18°C
(65°F)		18°C
(65°F)		18°C
(66°F)		16°C
(61°F)		12°C
(54°F)		10°C
(50°F)
Minimum8°C
(47°F)		8°C
(47°F)		10°C
(51°F)		13°C
(55°F)		14°C
(57°F)		18°C
(64°F)		18°C
(64°F)		18°C
(65°F)		18°C
(64°F)		14°C
(57°F)		10°C
(50°F)		9°C
(48°F)

Compare climate in San Juan Mazatlan with other places

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

Monthly average precipitation in San Juan Mazatlan, Mexico

San Juan Mazatlan usually has the most precipitation in June, August and October, with an average of 23 rainy days and 323 mm (12.7 inches) of precipitation per month. The driest months in San Juan Mazatlan are March, April and December. On average, 40 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Juan Mazatlan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)52 (2.1)50 (2.0)34 (1.3)46 (1.8)92 (3.6)377 (14.8)191 (7.5)323 (12.7)249 (9.8)270 (10.6)91 (3.6)40 (1.6)
Average precipitation days (≥ 1 mm)10879152327272520118

Monthly sunshine hours in San Juan Mazatlan, Mexico

The sunniest months in San Juan Mazatlan are April, May and July, when the sun shines an average of 10 hours 18 minutes a day. Least sunny months in San Juan Mazatlan: January, February and June receive an average of 8 hours 10 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Juan Mazatlan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours208255304307320272321305285280276273
Mean daily daylight hours11h 13m11h 34m12h 2m12h 31m12h 55m13h 6m13h 0m12h 39m12h 11m11h 43m11h 19m11h 7m

Solar UV radiation in San Juan Mazatlan, Mexico

San Juan Mazatlan experiences the highest level of ultraviolet (UV) radiation in April, May and July, when the maximum UV index can reach values of 14 - 14, 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 San Juan Mazatlan UV Index data.

Average daily maximum UV levels by month for San Juan Mazatlan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)9121314141414131312108