Climate and monthly weather forecastGuanajuato, Mexico
Climate and monthly weather forecast
The climate of Guanajuato
Guanajuato, Mexico is situated within the Mid-latitude steppe, as classified by the Köppen climate system, featuring a prevalent BSk climate type. Chronologically, the climate exhibits a moderately dry stretch from January to April, followed by a wetter spell navigable from May through to October, and culminating in a somewhat dry period over November and December.Different weather elements show fluctuations throughout the year. Monthly average temperatures oscillate from 7°C (44.6°F) to 14.4°C (57.9°F) for lows and from 19.8°C (67.6°F) to 28.2°C (82.8°F) for highs. The highest temperatures occur in May while January and December present the coldest conditions. A shift in humidity can be seen from 36% in April to 76% in September. Notably, rainfall varies from a low 3mm (0.12") in January to a high 87mm (3.43") in July, displaying seasonal shifts in precipitation.
There's a discernible rise in daylight hours from 11 hours in January to 13.4 hours in June, with a gradual decrease subsequently. Interestingly, UV index reaches its peak of 6 during the hotter months from April to May, dipping to a minimal 4 during the colder months. It's noteworthy to mention that Guanajuato experiences high visibility of around 10km (6.2mi), except from September to November when visibility decreases slightly to 8km (5mi) to 9km (5.6mi).
The best time to visit Guanajuato
Travelers seeking to experience Guanajuato in pleasing weather conditions are advised to schedule their visit during April and May. During these months, the city basks in sophisticated warmth paired with a generous sunshine duration of 9.7 hours. The UV index is high, presenting excellent conditions for sightseeing and exploration. It is worth noting that this period also witnesses reduced rainfall, thus keeping the thoroughfares accessible and navigable.The worst time to visit Guanajuato
The residents of Guanajuato experience their wettest period from June through September, characterized by an average rainfall of 73mm (2.87"). This escalation in precipitation, paired with increased humidity of over 70%, makes these months less appealing to travelers. Those not partial to wet conditions should abstain from visiting during this time. Wind speed also intensifies with gusts reaching 15.5km/h (9.6mph).Spring weather in Guanajuato
Spring's arrival decorates Guanajuato, Mexico, with favorable weather for outdoors enjoyment. March witnesses temperatures ranging from 9.6°C (49.3°F) to 24.8°C (76.6°F), culminating in a high of 14.3°C (57.7°F) to 28.2°C (82.8°F) by May. While the humidity starts decreasing from 44% in March to a minimum of 36% in April, rainfall remains subdued, making spring an attractive season for outdoor activities.Summer weather in Guanajuato
Summer commences with a steep rise in humidity to 61% in June and persists above 70% till September. Concurrently, temperatures experience stability, ranging from 13.3°C (55.9°F) to 26.1°C (79°F) marking the commencement of the rainy season as rainfall pushes up to 81mm (3.19") in June and peaks at 87mm (3.43") in July. As the summer progresses, the daylight hours slightly retreat from 13.4 hours in June to 12.8 hours by August.Autumn weather in Guanajuato
The Autumn season in Guanajuato observes a downward transition of several weather parameters. Average temperatures that soared from 13.3°C (55.9°F) to 24.1°C (75.4°F) in September slip to 10.6°C (51.1°F) to 22.5°C (72.5°F) by November with reduced daylight hours at 11.7 hours. Rainfall also tricks down from a substantial 62mm (2.44") in September to an insignificant 14mm (0.55") in November. And as autumn advances, the humidity drops from 76% to 65%.Winter weather in Guanajuato
Winter features a relatively dry and cooler period in Guanajuato. Temperature ranges from 8.9°C (48°F) to 21.1°C (70°F) in December which further decreases to 7°C (44.6°F) to 19.8°C (67.6°F) in January. A consistent decline in daylight underscores the progress of winter, bottoming out at 10.9 hours in December. Rainfall plunges to its lowest of 4mm (0.16") in December, indicating winter's dry nature. Humidity also reduces sequentially, reaching a low of 53% in January before inching upwards again.Weather in January
Guanajuato, Mexico experiences mild climate distinctions round the year with January standing at the helm of winter. Noticeably, the month’s humidity at 53% makes it the driest period of the year. Temperatures range between 7°C (44.6°F) in the chilly mornings to high of 19.8°C (67.6°F) during the day. Weather in January »Weather in February
Shifts in climate become evident as February ushers in slightly warmer temperatures. February sees the average rainfall scale from 3mm (0.12") in January to 12mm (0.47"), heralding the onset of the rainy season that lasts till September. Weather in February »Weather in March
As spring steps in March, weather patterns take a more pronounced turn. The average high temperature increases to 24.8°C (76.6°F). Consequently, this increasing warmth is balanced by a total 15mm (0.59") of rainfall. Concurrently, the days continue to stretch, indulging visitors to experience more of antique Guanajuato mysteries. Weather in March »Weather in April
Guanajuato in April personifies the grandeur of the Mexican Spring. This month witnesses the lowest average relative humidity of 36%, ideally complimenting the sunny days. The wind rattles at a relatively higher speed of 10.8km/h (6.7mph), adding an invigorating touch to the warm month. Weather in April »Weather in May
The city of Guanajuato starts to experience a significant shift in weather as May approaches. The month's maximum average temperature hits an annual high of 28.2°C (82.8°F). Consequently, the rainfall in May also sees a stark increase up to 30mm (1.18"), signifying the beginning of the rainy season. Weather in May »Weather in June
Guanajuato embraces the summer solstice in June as the year progresses. June is characterized by persistent showers with the highest rainfall recorded at 81mm (3.19"). Regular rainfall coupled with increased humidity creates an atmospheric glow across the city's classic skyline, enhancing its beauty manifold. Weather in June »Weather in July
July in Guanajuato is immersed in an vibrant rainy mood backed by high humidity. The showers rise slightly from June to reach the year's peak at 87mm (3.43"). Though dampness often prevails, the city's scratchy outline exhibits an ethereal charm during this month. Weather in July »Weather in August
As summer makes way for fall, August brings with it a slight reprieve from the heavy rains. With the maximum average temperature at 24.4°C (75.9°F), the month experiences a total rainfall of 69mm (2.72"). The city gears up for the festive season with pleasant weather and considerable daylight hours. Weather in August »Weather in September
September rings in lower temperatures and a gradual decline in rainfall in Guanajuato, indicating the end of the wet season. Local and travelers alike are greeted with a 23.2°C (73.8°F) daily average high and 62mm (2.44") cumulative rainfall. Weather in September »Weather in October
With fall in full swing, October introduces the city to a refreshing spirit with lesser showers. From 62mm (2.44") rainfall in September, the total precipitation sees a significant drop to 38mm (1.5") in October. The diminished showers are complemented by a pleasant 22.5°C (72.5°F) maximum average temperature. Weather in October »Weather in November
November ushers in a transition from fall to winter, making it ideal for tourists seeking a milder climate. With a drop in maximum temperature to 21.1°C (70°F), the city observes a total precipitation of 14mm (0.55"). This substantial reduction in rainfall is relayed by increasingly refreshing and crisp weather. Weather in November »Weather in December
Closing the annual weather cycle, December in Guanajuato, observes winter in its full form. It exhibits the city's second-lowest monthly average temperature, 20.3°C (68.5°F), accompanied by a significantly dry period of 4mm (0.16") total rainfall. Weather in December »Updated: Aug 25, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month that records the lowest temperatures, with averages ranging from a high of 19.8°C (67.6°F) to a low of 7°C (44.6°F).
January is the month with the least rainfall. Rain falls for 3.2 days and accumulates 3mm (0.12") of precipitation.
Throughout the year, there are 116.2 rainfall days, and 425mm (16.73") of precipitation is accumulated.
January, May and December, with an average of 9.8h of sunshine, are months with the most sunshine.
January, November and December, with an average maximum UV index of 4, are months with the lowest UV index.
April is the least humid month in Guanajuato, with an average relative humidity of 36%.
The months with the highest UV index are April and May, with an average maximum UV index of 6.
Guanajuato, Mexico, witnesses the warmest weather in May, with temperatures averaging a high of 28.2°C (82.8°F) and a low of 14.3°C (57.7°F).
The month with the longest days is June, with an average of 13h and 24min of daylight.
July is the month with the most rainfall. Rain falls for 19.8 days and accumulates 87mm (3.43") of precipitation.
With an average of 9.2h of sunshine, July has the least sunshine of the year.
September is the most humid month, with an average relative humidity of 76%.
With an average of 10h and 54min of daylight, December has the shortest days of the year.
Guanajuato does not observe Daylight Saving Time (DST). CST timezone is used throughout the entire year.
Average temperature
Guanajuato, Mexico
The warmest month (with the highest average high temperature) is May (28.2°C).
The month with the lowest average high temperature is January (19.8°C).
The month with the highest average low temperature is June (14.4°C).
The coldest month (with the lowest average low temperature) is January (7°C).
Average pressure
Guanajuato, Mexico
- Average pressure in January:
1018.5mbar - Average pressure in February:
1016.6mbar - Average pressure in March:
1015.7mbar - Average pressure in April:
1014mbar - Average pressure in May:
1013.6mbar - Average pressure in June:
1014.3mbar
- Average pressure in July:
1016.8mbar - Average pressure in August:
1016.3mbar - Average pressure in September:
1015.7mbar - Average pressure in October:
1016.6mbar - Average pressure in November:
1018.1mbar - Average pressure in December:
1017.8mbar
The month with the highest atmospheric pressure is January (1018.5mbar).
The month with the lowest atmospheric pressure is May (1013.6mbar).
Average wind speed
Guanajuato, Mexico
- Average wind speed in January:
10km/h - Average wind speed in February:
10.2km/h - Average wind speed in March:
10.5km/h - Average wind speed in April:
10.8km/h - Average wind speed in May:
9.5km/h - Average wind speed in June:
10.4km/h
- Average wind speed in July:
9.4km/h - Average wind speed in August:
10.1km/h - Average wind speed in September:
9.9km/h - Average wind speed in October:
10.5km/h - Average wind speed in November:
9.3km/h - Average wind speed in December:
9.1km/h
The windiest month (with the highest average wind speed) is April (10.8km/h).
The calmest month (with the lowest average wind speed) is December (9.1km/h).
Average humidity
Guanajuato, Mexico
The month with the highest relative humidity is September (76%).
The month with the lowest relative humidity is April (36%).
Average rainfall
Guanajuato, Mexico
The wettest month (with the highest rainfall) is July (87mm).
The driest month (with the least rainfall) is January (3mm).
Average rainfall days
Guanajuato, Mexico
- Average rainfall days in January:
3.2 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
6 days - Average rainfall days in April:
6.2 days - Average rainfall days in May:
11.2 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
19.8 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
15.6 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
1.8 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is December (1.8 days).
Average daylight / Average sunshine
Guanajuato, Mexico
- Average daylight in January:
11h and 0min - Average daylight in February:
11h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 36min - Average daylight in May:
13h and 6min - Average daylight in June:
13h and 24min
- Average daylight in July:
13h and 18min - Average daylight in August:
12h and 48min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 42min - Average daylight in November:
11h and 6min - Average daylight in December:
10h and 54min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in January:
9h and 48min - Average sunshine in February:
9h and 36min - Average sunshine in March:
9h and 42min - Average sunshine in April:
9h and 42min - Average sunshine in May:
9h and 48min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
9h and 12min - Average sunshine in August:
9h and 30min - Average sunshine in September:
9h and 18min - Average sunshine in October:
9h and 30min - Average sunshine in November:
9h and 42min - Average sunshine in December:
9h and 48min
The months with the most sunshine are January, May and December (Average sunshine: 9h and 48min).
The month with the least sunshine is July (Average sunshine: 9h and 12min).
Average sunshine days
Guanajuato, Mexico
- Average sunshine days in January:
27.7 days - Average sunshine days in February:
23.5 days - Average sunshine days in March:
23.2 days - Average sunshine days in April:
22.4 days - Average sunshine days in May:
16.9 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
9.1 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
12.5 days - Average sunshine days in October:
18.7 days - Average sunshine days in November:
23.8 days - Average sunshine days in December:
28.5 days
The month with the most sunshine days is December (28.5 days).
The month with the least sunshine days is July (9.1 days).
Average UV index
Guanajuato, Mexico
The months with the highest UV index are April and May (UV index 6).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover
Guanajuato, Mexico
The months with the most cloud cover are July and September (Cloud cover 35).
The months with the least cloud cover are March and April (Cloud cover 11).
Average visibility
Guanajuato, Mexico
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The month with the lowest visibility is September (8km).
