San Luis Potosí weather and climate in 2025
Day
27 °C
Night
13 °C
Sea
0 °C
Precipitation
72 mm
in month
Rainy days
6 days
in month
Daylight
13 hours
average
Sunshine
7 hours
average
Humidity
62 %
Day
27 °C
Night
13 °C
Sea
0 °C
Precipitation
72 mm
in month
Rainy days
6 days
in month
Daylight
13 hours
average
Sunshine
7 hours
average
Humidity
62 %
Overview: San Luis Potosí
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Weather overview for San Luis Potosí
Weather overview
San Luis Potosí, Mexico, enjoys a pleasant climate year-round with a clear division between dry and wet seasons. Visitors can bask in the warmth with daytime temperatures scaling between 22 °C (71 °F) in January to a zenith of 31 °C (87 °F) in May. With the added benefit of significant sunlight, the city promises outdoor comfort and vibrant blue skies, especially in the dry months. Rainfall becomes a recurring theme from May through October, so locals and visitors alike adapt their routines to accommodate the seasonal afternoon downpours. Despite the rainfall, humidity levels remain quite moderate year-round, making it an agreeable climate for exploring the rich culture and history of the region.
January weather
January in San Luis Potosí starts on a cooler note with an average low of 5 °C (40 °F) at night, while daytime temperatures offer a pleasant 22 °C (71 °F). With minimal wet days tallying around 2 days, it is one of the driest months, allowing visitors to enjoy the outdoors without the worry of rain. The wind in January maintains a gentle pace at 2 m/s.
February weather
February sees the mercury climb slightly with daytime averages reaching 24 °C (75 °F), ensuring a warm and inviting vibe. Temperatures at night average around 6 °C (42 °F). This month continues the dry spell with limited wet days, averaging 1 day, and lower rainfall of 11 mm (0.43 in).
March weather
March welcomes the spring with open arms as the days become notably warmer. The average daytime temperature soars to 27 °C (80 °F), while the nights are still cool, averaging 8 °C (46 °F). With the wet season still a distant thought, the city enjoys 1 day of rain on average and moderate wind speeds of 3 m/s.
April weather
April in San Luis Potosí marks the onset of warmer times with daytime highs averaging a balmy 30 °C (85 °F). The night temperatures maintain a milder 11 °C (51 °F). The month also indicates an uptick in wetness, as the rain tallies increase slightly to an average of 2 days, paired with a gentle breeze blowing at 3 m/s.
May weather
May presents the zenith of warmth with average high temperatures reaching 31 °C (87 °F), signaling the peak of spring. Nights remain comfortable at 12 °C (54 °F). The onset of the wet season is noticed as the number of wet days jumps to 4 days, and rainfall amounts to 41 mm (1.60 in).
June weather
June's weather in San Luis Potosí marks a blend of warmth and showers. Daytime temperatures see a slight dip to 29 °C (84 °F), while night temperatures marginally increase to 13 °C (56 °F). The number of wet days rises to 7 days as the rainy season is well underway.
July weather
July in San Luis Potosí continues to show patterns of rain with daytime highs averaging at 27 °C (81 °F). The evenings stay cozy with an average low of 13 °C (55 °F). Rainy days are frequent, with the average climbing to 6 days, and the winds calm to 2 m/s.
August weather
August resembles July with both warm days at an average high of 28 °C (82 °F) and humid rainy afternoons. The city remains verdant and fresh, with the number of wet days still elevated at 6 days and the nights averaging 13 °C (55 °F).
September weather
September in San Luis Potosí signals the gradual diminishment of the rainy season. With daytime temperatures around 26 °C (78 °F), the climate remains agreeable, complemented by an average of 7 days of rainfall, and nights cooling down to 13 °C (55 °F).
October weather
October brings about a noticeable shift, with a decline in both rain and heat. Average day temperatures dip to a comfortable 25 °C (77 °F), and the rains taper off with just over 4 days on average. Evening temperatures settle at 10 °C (51 °F).
November weather
November witnesses further cooling with the daytime temperature averaging 24 °C (75 °F) and nights becoming distinctly cooler at 7 °C (45 °F). The rainy season fades, reflected by a lower average of 2 days of rain and gentler wind speeds of 2 m/s.
December weather
December rounds out the year in San Luis Potosí with cooler temperatures, reaching an average high of 22 °C (72 °F) during the day and dipping to 5 °C (41 °F) at night. The rain is scarce, only reaching an average of 2 days, and the wind maintains its steady caress at 2 m/s.
FAQs
How cold does it get at night in San Luis Potosí in January?
Nighttime in January can be somewhat chilly, as temperatures can dip to an average low of 5 °C (40 °F), so it's wise to carry a light jacket for evenings.
Is it significantly warmer in San Luis Potosí during February?
February is marginally warmer than January, with daytime highs creeping up to a comfortable 24 °C (75 °F). It's perfect for those who prefer mild to warm weather.
Do I need to pack warm clothes for March nights in San Luis Potosí?
Even though days are warm, with an average high of 27 °C (80 °F), evenings can be cool, so having a couple of layers handy for nighttime is a good idea.
How do daytime temperatures in San Luis Potosí in April affect outdoor activities?
April's daytime warmth of 30 °C (85 °F) is perfect for various outdoor activities. Whether it's exploring the city's plazas or enjoying a picnic in the park, the weather is generally favorable—just don't forget sunscreen.
During May's peak temperatures in San Luis Potosí, what should visitors keep in mind?
May brings the year's highest average temperatures 31 °C (87 °F); visitors should stay hydrated and use hats or umbrellas for sun protection when venturing out.
What is the best way to deal with the combination of heat and rain in San Luis Potosí in June?
Given the warmth of 29 °C (84 °F) in the day and the likelihood of rain, breathable clothing and an umbrella are advisable to stay comfortable while exploring San Luis Potosí in June.
Are afternoons in July in San Luis Potosí typically rainy?
Yes, in July one can expect more afternoons with showers as it's the heart of the rainy season, averaging around 6 days of wet weather.
How hot does San Luis Potosí get in August?
August in San Luis Potosí provides plenty of warmth without being oppressive, as temperatures hover around 28 °C (82 °F) during the day.
As the rainy season wanes in September, are outdoor activities in San Luis Potosí still affected?
While the frequency of rain diminishes, it's still wise to plan for possibly disrupted outdoor activities. However, the moderate temperatures of 26 °C (78 °F) are ideal for exploring the city.
Will I experience a lot of rain in San Luis Potosí during October?
October sees a reduction in rainfall, with days of rain averaging 4 days, making it a great time to enjoy autumnal activities without too much concern for rain.
Is November in San Luis Potosí cold or still moderately warm?
November in San Luis Potosí is moderately warm and very pleasant, with average daytime temperatures of 24 °C (75 °F) and crisper nights that may require a light sweater.
What type of weather should I expect in San Luis Potosí in December?
December offers cool and mostly dry weather with sporadic rain, making it an ideal time to revel in the festive season under the clear, crisp winter sky.
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