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Salamanca, Guanajuato Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Salamanca, Guanajuato?
Salamanca, Guanajuato gets 457 mm of precipitation a year over about 53 rainy days. May is the warmest month (average high 32°C) and January the coldest (average low 7°C).
Semi-arid climate
Salamanca, Guanajuato has hot summers and warm winters. Daytime highs range from about 23°C in January to 32°C in May. July is usually the wettest month. The most comfortable time to visit is typically January to February and October to December, when daytime highs sit near 25°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 7° | 24° |
| Spring | Mar–May | 12° | 30° |
| Summer | Jun–Aug | 14° | 29° |
| Autumn | Sep–Nov | 12° | 26° |
How much rain does Salamanca get?
Salamanca gets 457 mm of precipitation in an average year, spread over about 53 days with measurable rain. That is fewer rainy days than 62% of Mexico.
July is the wettest month, with 113 mm. December is the driest, with 4 mm. July has the most rainy days, about 11.
The longest dry spell in the last five years lasted 24 days, to April 11, 2022.
From October 2025 to September 2026 Salamanca got 1029 mm of rain, against a normal of 457 mm for those months. June 2026 had the most, with 328 mm.
Salamanca weather by month
Salamanca weather in January
In January, Salamanca averages a high of 23°C and a low of 7°C. It gets 5 mm of precipitation over about 1 rainy days. Estimated sunshine is 59% of daylight hours, derived from ERA5 cloud cover. The January record high is 29°C (2012) and the record low is -2°C (1985). January is one of the most comfortable months to visit.
Salamanca weather in February
In February, Salamanca averages a high of 26°C and a low of 8°C. It gets 8 mm of precipitation over about 1 rainy days. Estimated sunshine is 77% of daylight hours, derived from ERA5 cloud cover. The February record high is 33°C (2008) and the record low is -2°C (1983). February is one of the most comfortable months to visit.
Salamanca weather in March
In March, Salamanca averages a high of 28°C and a low of 10°C. It gets 9 mm of precipitation over about 2 rainy days. Estimated sunshine is 76% of daylight hours, derived from ERA5 cloud cover. The March record high is 37°C (2020) and the record low is 2°C (1983).
Salamanca weather in April
In April, Salamanca averages a high of 31°C and a low of 12°C. It gets 7 mm of precipitation over about 2 rainy days. Estimated sunshine is 66% of daylight hours, derived from ERA5 cloud cover. The April record high is 37°C (2008) and the record low is 6°C (1985).
Salamanca weather in May
In May, Salamanca averages a high of 32°C and a low of 14°C. It gets 29 mm of precipitation over about 6 rainy days. Estimated sunshine is 68% of daylight hours, derived from ERA5 cloud cover. The May record high is 41°C (2025) and the record low is 8°C (2014).
Salamanca weather in June
In June, Salamanca averages a high of 31°C and a low of 15°C. It gets 83 mm of precipitation over about 8 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The June record high is 39°C (2023) and the record low is 8°C (1984).
Salamanca weather in July
In July, Salamanca averages a high of 28°C and a low of 14°C. It gets 113 mm of precipitation over about 11 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The July record high is 34°C (2023) and the record low is 11°C (2000).
Salamanca weather in August
In August, Salamanca averages a high of 28°C and a low of 14°C. It gets 91 mm of precipitation over about 9 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The August record high is 35°C (2011) and the record low is 9°C (1984).
Salamanca weather in September
In September, Salamanca averages a high of 27°C and a low of 14°C. It gets 78 mm of precipitation over about 7 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The September record high is 35°C (2023) and the record low is 6°C (1989).
Salamanca weather in October
In October, Salamanca averages a high of 27°C and a low of 12°C. It gets 27 mm of precipitation over about 4 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The October record high is 34°C (2009) and the record low is 2°C (1999). October is one of the most comfortable months to visit.
Salamanca weather in November
In November, Salamanca averages a high of 26°C and a low of 9°C. It gets 4 mm of precipitation over about 1 rainy days. Estimated sunshine is 71% of daylight hours, derived from ERA5 cloud cover. The November record high is 32°C (2023) and the record low is 0°C (1979). November is one of the most comfortable months to visit.
Salamanca weather in December
In December, Salamanca averages a high of 24°C and a low of 7°C. It gets 4 mm of precipitation over about 1 rainy days. Estimated sunshine is 62% of daylight hours, derived from ERA5 cloud cover. The December record high is 31°C (2005) and the record low is -2°C (1997). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in Salamanca
February is the sunniest month in Salamanca, with estimated sunshine of 77% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 28%. The annual cloud-cover estimate is 56% of daylight hours; it is not a measurement of sunshine duration. Salamanca is sunnier than 66% of Mexico.
Humidity peaks in August at 67% and is lowest in April at 28%.
Salamanca has about 22 days a year above 32°C. Salamanca is cooler than 81% of Mexico.
Salamanca weather records
These records cover GUANAJUATO during 1978–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Salamanca station is 41°C, on May 17, 2025. The coldest is -2°C, on December 15, 1997.
The wettest day in the available station history brought 92 mm of precipitation, on February 4, 2010.
31 all-time records have been set at the station since 1978.
The best time to visit Salamanca
The most comfortable time to visit is typically January to February and October to December, when daytime highs sit near 25°C.
Winter (December–February) is warm, with average highs around 24°C and lows near 7°C.
Spring (March–May) is hot, with average highs around 30°C and lows near 12°C.
Summer (June–August) is hot, with average highs around 29°C and lows near 14°C.
Autumn (September–November) is warm, with average highs around 26°C and lows near 12°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 7° | 23° | 4.8 mm | 1 | 45% | 59% | 29° | -2° |
| February | 8° | 26° | 7.9 mm | 1 | 38% | 77% | 33° | -2° |
| March | 10° | 28° | 8.9 mm | 2 | 31% | 76% | 37° | 2° |
| April | 12° | 31° | 7.1 mm | 2 | 28% | 66% | 37° | 6° |
| May | 14° | 32° | 29 mm | 6 | 32% | 68% | 41° | 8° |
| June | 15° | 31° | 83 mm | 8 | 46% | 46% | 39° | 8° |
| July | 14° | 28° | 113 mm | 11 | 66% | 28% | 34° | 11° |
| August | 14° | 28° | 91 mm | 9 | 67% | 32% | 35° | 9° |
| September | 14° | 27° | 78 mm | 7 | 65% | 35% | 35° | 6° |
| October | 12° | 27° | 27 mm | 4 | 53% | 46% | 34° | 2° |
| November | 9° | 26° | 4.1 mm | 1 | 49% | 71% | 32° | 0° |
| December | 7° | 24° | 3.8 mm | 1 | 51% | 62% | 31° | -2° |
Station: GUANAJUATO, 49 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1978–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Salamanca climate questions
How much rain does Salamanca get?
Salamanca gets 457 mm of precipitation in an average year, over about 53 rainy days.
What is the wettest month in Salamanca?
July is the wettest month in Salamanca, with 113 mm. December is the driest, with 4 mm.
How many rainy days does Salamanca have a year?
Salamanca has about 53 days with measurable rain in an average year. July has the most, about 11.
What is the hottest month in Salamanca?
May is the warmest month in Salamanca, with an average high of 32°C.
What is the coldest month in Salamanca?
January is the coldest month in Salamanca, with an average low of 7°C.
What is the record high temperature in Salamanca?
Within the available 1978–2026 station history, the record high at the Salamanca station is 41°C, set on May 17, 2025. The record low is -2°C, on December 15, 1997.
What is the sunniest month in Salamanca?
February is the sunniest month in Salamanca, with estimated sunshine of 77% of daylight hours from ERA5 cloud cover. July is the cloudiest.
What is the best time to visit Salamanca?
The most comfortable time to visit is typically January to February and October to December, when daytime highs sit near 25°C.
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