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Monthly climate in Loreto, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Loreto features a hot desert climate (BWh). Temperatures typically range between 18 °C (65 °F) and 29 °C (85 °F) through the year, but rarely can drop to 13 °C (56 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 129 mm (5.1 inches) and receives 7 rainy days on the 1 mm (0.04 inches) threshold annually. Loreto enjoys an average of 3657 hours of sunshine throughout the year, and daylight varies from 10 hours 31 minutes to 13 hours 43 minutes per day.

Monthly average temperatures in Loreto, Mexico

The warmest months in Loreto are July, August and September, with daily mean temperatures ranging from 29 to 29 °C (84 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 18 to 19 °C (65 - 67 °F) throughout the day. On average each year, Loreto experiences 159 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 Loreto. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum23°C
(75°F)		24°C
(76°F)		25°C
(78°F)		29°C
(85°F)		29°C
(85°F)		32°C
(90°F)		33°C
(92°F)		32°C
(90°F)		33°C
(91°F)		32°C
(89°F)		29°C
(84°F)		25°C
(76°F)
Mean maximum22°C
(72°F)		23°C
(73°F)		24°C
(75°F)		27°C
(82°F)		28°C
(83°F)		30°C
(86°F)		32°C
(90°F)		32°C
(90°F)		31°C
(89°F)		31°C
(88°F)		28°C
(82°F)		24°C
(75°F)
Average high20°C
(68°F)		19°C
(67°F)		21°C
(69°F)		23°C
(74°F)		25°C
(77°F)		28°C
(83°F)		30°C
(85°F)		30°C
(87°F)		30°C
(86°F)		28°C
(83°F)		25°C
(77°F)		21°C
(70°F)
Daily mean18°C
(66°F)		18°C
(65°F)		19°C
(67°F)		22°C
(71°F)		24°C
(75°F)		27°C
(80°F)		29°C
(84°F)		29°C
(85°F)		29°C
(84°F)		27°C
(81°F)		24°C
(75°F)		20°C
(68°F)
Average low18°C
(64°F)		17°C
(63°F)		18°C
(65°F)		21°C
(69°F)		22°C
(72°F)		25°C
(78°F)		28°C
(82°F)		29°C
(84°F)		28°C
(82°F)		26°C
(79°F)		23°C
(73°F)		19°C
(66°F)
Mean minimum15°C
(59°F)		14°C
(57°F)		15°C
(59°F)		17°C
(62°F)		18°C
(66°F)		22°C
(72°F)		26°C
(79°F)		26°C
(80°F)		25°C
(77°F)		22°C
(72°F)		20°C
(68°F)		15°C
(60°F)
Minimum14°C
(57°F)		13°C
(56°F)		14°C
(57°F)		16°C
(60°F)		17°C
(62°F)		20°C
(68°F)		25°C
(78°F)		26°C
(79°F)		24°C
(75°F)		21°C
(69°F)		18°C
(65°F)		14°C
(58°F)

Compare climate in Loreto with other places

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

Monthly average precipitation in Loreto, Mexico

Loreto usually has the most precipitation in September, October and November, with an average of 1 rainy days and 29 mm (1.1 inches) of precipitation per month. The driest months in Loreto are April, May and July. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Loreto. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)8 (0.3)4 (0.1)4 (0.2)0 (0.0)0 (0.0)6 (0.2)2 (0.1)12 (0.5)46 (1.8)23 (0.9)18 (0.7)6 (0.2)
Average precipitation days (≥ 1 mm)001000012111

Monthly sunshine hours in Loreto, Mexico

The sunniest months in Loreto are May, June and July, when the sun shines an average of 11 hours 37 minutes a day. Least sunny months in Loreto: January, February and December receive an average of 8 hours 9 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Loreto. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours220256301325360355354339309303265265
Mean daily daylight hours10h 42m11h 16m12h 1m12h 47m13h 25m13h 43m13h 33m12h 59m12h 15m11h 30m10h 51m10h 31m

Solar UV radiation in Loreto, Mexico

Loreto 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 Loreto UV Index data.

Average daily maximum UV levels by month for Loreto. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)6810121212121212976