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Monthly climate in San Fernando de Guaymas, Sonora, Mexico

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification San Fernando de Guaymas features a hot desert climate (BWh).Temperatures typically range between 17 °C (64 °F) and 32 °C (91 °F) through the year, but rarely can drop to 5 °C (42 °F) or can rise to as high as 43 °C (110 °F).The average annual precipitation amounts to about 184 mm (7.2 inches) and receives 25 rainy days on the 1 mm (0.04 inches) threshold annually.San Fernando de Guaymas enjoys an average of 3629 hours of sunshine throughout the year, and daylight varies from 10 hours 23 minutes to 13 hours 52 minutes per day.

Monthly average temperatures in San Fernando de Guaymas, Sonora, Mexico §

The warmest months in San Fernando de Guaymas are June, July and August, with daily mean temperatures ranging from 31 to 32 °C (87 - 91 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 17 to 18 °C (64 - 65 °F) throughout the day. On average each year, San Fernando de Guaymas experiences 274 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 Fernando de Guaymas, Sonora, Mexico.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 30°C
(87°F)		 33°C
(91°F)		 34°C
(93°F)		 39°C
(102°F)		 41°C
(106°F)		 41°C
(106°F)		 41°C
(107°F)		 41°C
(105°F)		 43°C
(110°F)		 40°C
(104°F)		 38°C
(100°F)		 31°C
(88°F)
Mean maximum 29°C
(84°F)		 30°C
(86°F)		 32°C
(91°F)		 37°C
(99°F)		 37°C
(100°F)		 39°C
(102°F)		 40°C
(104°F)		 40°C
(104°F)		 38°C
(101°F)		 39°C
(102°F)		 35°C
(94°F)		 29°C
(85°F)
Average high 24°C
(76°F)		 25°C
(77°F)		 27°C
(81°F)		 30°C
(87°F)		 32°C
(90°F)		 35°C
(96°F)		 36°C
(98°F)		 36°C
(98°F)		 35°C
(95°F)		 33°C
(92°F)		 29°C
(85°F)		 25°C
(77°F)
Daily mean 17°C
(64°F)		 18°C
(65°F)		 21°C
(69°F)		 24°C
(76°F)		 27°C
(81°F)		 31°C
(87°F)		 32°C
(91°F)		 32°C
(91°F)		 31°C
(87°F)		 28°C
(82°F)		 23°C
(74°F)		 18°C
(65°F)
Average low 11°C
(53°F)		 12°C
(55°F)		 14°C
(58°F)		 17°C
(63°F)		 20°C
(69°F)		 25°C
(78°F)		 29°C
(84°F)		 29°C
(84°F)		 27°C
(81°F)		 22°C
(72°F)		 17°C
(63°F)		 13°C
(55°F)
Mean minimum 8°C
(46°F)		 8°C
(47°F)		 10°C
(51°F)		 13°C
(57°F)		 17°C
(63°F)		 21°C
(71°F)		 26°C
(79°F)		 27°C
(80°F)		 24°C
(75°F)		 16°C
(61°F)		 13°C
(55°F)		 7°C
(46°F)
Minimum 6°C
(43°F)		 6°C
(43°F)		 9°C
(48°F)		 13°C
(55°F)		 16°C
(61°F)		 20°C
(68°F)		 26°C
(79°F)		 26°C
(78°F)		 20°C
(68°F)		 13°C
(56°F)		 11°C
(51°F)		 5°C
(42°F)

Compare climate in San Fernando de Guaymas with other places

Compare temperature, precipitation, sunshine, UV index in San Fernando de Guaymas, Sonora, Mexico with other places around the world.

Monthly average precipitation in San Fernando de Guaymas, Sonora, Mexico §

San Fernando de Guaymas usually has the most precipitation in July, August and September, with an average of 5 rainy days and 34 mm (1.4 inches) of precipitation per month.The driest months in San Fernando de Guaymas are April, May and June. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Fernando de Guaymas, Sonora, Mexico.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 12 (0.5) 9 (0.4) 12 (0.5) 0 (0.0) 0 (0.0) 7 (0.3) 18 (0.7) 28 (1.1) 57 (2.3) 18 (0.7) 13 (0.5) 10 (0.4)
Average precipitation days (≥ 1 mm) 1 1 1 0 0 0 4 6 7 1 2 2

Monthly sunshine hours in San Fernando de Guaymas, Sonora, Mexico §

The sunniest months in San Fernando de Guaymas are May, June and July, when the sun shines an average of 11 hours 41 minutes a day.Least sunny months in San Fernando de Guaymas: January, February and December receive an average of 7 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Fernando de Guaymas, Sonora, Mexico.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 216 249 296 328 366 360 348 332 306 300 262 261
Mean daily daylight hours 10h 34m 11h 12m 12h 1m 12h 50m 13h 32m 13h 52m 13h 41m 13h 4m 12h 16m 11h 27m 10h 44m 10h 23m

Solar UV radiation in San Fernando de Guaymas, Sonora, Mexico §

San Fernando de Guaymas 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 Fernando de Guaymas UV Index data.

Average daily maximum UV levels by month for San Fernando de Guaymas, Sonora, Mexico.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 5 8 10 12 12 12 12 11 11 9 7 5