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Monthly climate in Boca de Arroyo, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Boca de Arroyo features a hot semi-arid climate (BSh). Temperatures typically range between 18 °C (65 °F) and 30 °C (87 °F) through the year, but rarely can drop to 3 °C (38 °F) or can rise to as high as 42 °C (107 °F). The average annual precipitation amounts to about 514 mm (20.2 inches) and receives 58 rainy days on the 1 mm (0.04 inches) threshold annually. Boca de Arroyo enjoys an average of 3561 hours of sunshine throughout the year, and daylight varies from 10 hours 30 minutes to 13 hours 45 minutes per day.

Monthly average temperatures in Boca de Arroyo, Mexico

The warmest months in Boca de Arroyo are June, July and August, with daily mean temperatures ranging from 30 to 30 °C (86 - 87 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 18 to 19 °C (65 - 66 °F) throughout the day. On average each year, Boca de Arroyo experiences 311 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 Boca de Arroyo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(94°F)		34°C
(94°F)		37°C
(98°F)		39°C
(102°F)		41°C
(105°F)		42°C
(107°F)		41°C
(105°F)		41°C
(106°F)		40°C
(104°F)		41°C
(106°F)		39°C
(103°F)		33°C
(91°F)
Mean maximum32°C
(89°F)		33°C
(92°F)		35°C
(95°F)		37°C
(100°F)		39°C
(102°F)		40°C
(104°F)		40°C
(104°F)		39°C
(103°F)		37°C
(100°F)		39°C
(102°F)		37°C
(98°F)		31°C
(89°F)
Average high27°C
(81°F)		28°C
(82°F)		30°C
(87°F)		33°C
(92°F)		36°C
(97°F)		37°C
(99°F)		36°C
(97°F)		35°C
(96°F)		34°C
(94°F)		35°C
(96°F)		32°C
(90°F)		27°C
(82°F)
Daily mean18°C
(65°F)		19°C
(66°F)		21°C
(70°F)		24°C
(76°F)		27°C
(81°F)		30°C
(87°F)		30°C
(87°F)		30°C
(86°F)		29°C
(84°F)		28°C
(82°F)		23°C
(74°F)		19°C
(66°F)
Average low10°C
(51°F)		11°C
(53°F)		13°C
(55°F)		15°C
(60°F)		18°C
(65°F)		24°C
(75°F)		26°C
(79°F)		26°C
(78°F)		24°C
(76°F)		22°C
(71°F)		16°C
(61°F)		12°C
(54°F)
Mean minimum5°C
(42°F)		7°C
(45°F)		8°C
(47°F)		11°C
(52°F)		14°C
(58°F)		20°C
(68°F)		24°C
(75°F)		23°C
(74°F)		22°C
(72°F)		15°C
(60°F)		11°C
(53°F)		7°C
(45°F)
Minimum3°C
(38°F)		3°C
(38°F)		6°C
(44°F)		9°C
(48°F)		13°C
(56°F)		19°C
(66°F)		23°C
(73°F)		23°C
(73°F)		20°C
(69°F)		10°C
(51°F)		10°C
(49°F)		5°C
(42°F)

Compare climate in Boca de Arroyo with other places

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

Monthly average precipitation in Boca de Arroyo, Mexico

Boca de Arroyo usually has the most precipitation in July, August and September, with an average of 15 rainy days and 129 mm (5.1 inches) of precipitation per month. The driest months in Boca de Arroyo are March, April and May. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Boca de Arroyo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)11 (0.4)22 (0.9)7 (0.3)1 (0.0)1 (0.0)20 (0.8)122 (4.8)149 (5.9)114 (4.5)19 (0.7)34 (1.3)14 (0.6)
Average precipitation days (≥ 1 mm)131002161514222

Monthly sunshine hours in Boca de Arroyo, Mexico

The sunniest months in Boca de Arroyo are May, June and July, when the sun shines an average of 11 hours 17 minutes a day. Least sunny months in Boca de Arroyo: January, February and December receive an average of 8 hours 4 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Boca de Arroyo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours219250298323362349325311286301267264
Mean daily daylight hours10h 41m11h 16m12h 1m12h 47m13h 26m13h 45m13h 34m13h 0m12h 15m11h 29m10h 50m10h 30m

Solar UV radiation in Boca de Arroyo, Mexico

Boca de Arroyo experiences the highest level of ultraviolet (UV) radiation in April, August and September, 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 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 Boca de Arroyo UV Index data.

Average daily maximum UV levels by month for Boca de Arroyo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)69101212121212121076