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Monthly climate in San Javier, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Javier features a hot semi-arid climate (BSh). Temperatures typically range between 16 °C (61 °F) and 31 °C (89 °F) through the year, but rarely can drop to 0 °C (32 °F) or can rise to as high as 45 °C (113 °F). The average annual precipitation amounts to about 489 mm (19.3 inches) and receives 59 rainy days on the 1 mm (0.04 inches) threshold annually. San Javier enjoys an average of 3570 hours of sunshine throughout the year, and daylight varies from 10 hours 20 minutes to 13 hours 55 minutes per day.

Monthly average temperatures in San Javier, Mexico

The warmest months in San Javier are June, July and August, with daily mean temperatures ranging from 29 to 31 °C (85 - 89 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 16 to 17 °C (61 - 63 °F) throughout the day. On average each year, San Javier experiences 285 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 Javier. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(91°F)		34°C
(94°F)		37°C
(99°F)		41°C
(106°F)		42°C
(108°F)		45°C
(113°F)		43°C
(110°F)		42°C
(107°F)		42°C
(107°F)		41°C
(107°F)		39°C
(102°F)		31°C
(88°F)
Mean maximum30°C
(87°F)		31°C
(88°F)		35°C
(96°F)		39°C
(103°F)		40°C
(105°F)		43°C
(109°F)		41°C
(106°F)		40°C
(104°F)		39°C
(102°F)		39°C
(102°F)		35°C
(96°F)		30°C
(86°F)
Average high25°C
(77°F)		26°C
(79°F)		29°C
(85°F)		33°C
(92°F)		36°C
(97°F)		39°C
(103°F)		36°C
(97°F)		36°C
(97°F)		35°C
(95°F)		34°C
(93°F)		30°C
(86°F)		25°C
(77°F)
Daily mean16°C
(61°F)		17°C
(63°F)		20°C
(69°F)		24°C
(76°F)		27°C
(82°F)		31°C
(89°F)		30°C
(85°F)		29°C
(85°F)		28°C
(83°F)		26°C
(79°F)		21°C
(70°F)		17°C
(62°F)
Average low8°C
(48°F)		9°C
(49°F)		11°C
(53°F)		14°C
(58°F)		18°C
(64°F)		23°C
(74°F)		24°C
(76°F)		24°C
(76°F)		23°C
(73°F)		19°C
(66°F)		13°C
(56°F)		10°C
(49°F)
Mean minimum4°C
(39°F)		4°C
(40°F)		7°C
(44°F)		10°C
(50°F)		13°C
(56°F)		19°C
(66°F)		22°C
(71°F)		22°C
(72°F)		19°C
(66°F)		12°C
(54°F)		9°C
(48°F)		4°C
(40°F)
Minimum1°C
(33°F)		-0°C
(32°F)		4°C
(40°F)		9°C
(49°F)		10°C
(50°F)		16°C
(62°F)		21°C
(69°F)		21°C
(70°F)		15°C
(59°F)		8°C
(47°F)		6°C
(43°F)		1°C
(33°F)

Compare climate in San Javier with other places

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

Monthly average precipitation in San Javier, Mexico

San Javier usually has the most precipitation in July, August and September, with an average of 14 rainy days and 98 mm (3.9 inches) of precipitation per month. The driest months in San Javier are February, April and May. On average, 7 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Javier. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)23 (0.9)20 (0.8)28 (1.1)1 (0.0)1 (0.0)26 (1.0)109 (4.3)97 (3.8)89 (3.5)28 (1.1)38 (1.5)30 (1.2)
Average precipitation days (≥ 1 mm)23100319159223

Monthly sunshine hours in San Javier, Mexico

The sunniest months in San Javier are April, May and June, when the sun shines an average of 11 hours 35 minutes a day. Least sunny months in San Javier: January, February and December receive an average of 7 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Javier. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours215248290329368357326313299299260259
Mean daily daylight hours10h 32m11h 11m12h 0m12h 52m13h 34m13h 55m13h 43m13h 6m12h 17m11h 26m10h 42m10h 20m

Solar UV radiation in San Javier, Mexico

San Javier experiences the highest level of ultraviolet (UV) radiation in April, May and July, 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 Javier UV Index data.

Average daily maximum UV levels by month for San Javier. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)6810121212121111975