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Hourly Forecast
Daylight Hours
06:34
Sunrise
18:42
Sunset
Moon
Waxing Crescent
10:38
Moonrise
20:59
Moonset
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Weather in San Luis Potosí today, September 15, 2026
San Luis Potosí looks cloudy on September 15, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward.
Expect highs of 26°C and cooler readings close to 15°C. The air stays humid, with relative humidity between 37% and 80% and the peak around 23:00. Winds stay light, near 7.0 km/h by 18:00, so the day feels still more than breezy.
Expect persistent cloud later on, with amounts around 97% by 23:00. Sunshine remains the exception, not the rule. Visibility stays near 16.1 km. Expect sunrise at 06:34, sunset at 18:42, and 12 hours 7 minutes of sunlight today overall.
Overall, San Luis Potosí on September 15, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 26°C.
Frequently asked questions about weather in San Luis Potosí
How warm does it get in San Luis Potosí?
The warmest month in San Luis Potosí is May, with average high temperatures of 30°C. The average temperature during this period is around 22°C.
How cold does it get in San Luis Potosí?
The coldest month in San Luis Potosí is January, with average low temperatures of 7°C. The average temperature during this period is around 13°C.
What is the wettest time of year in San Luis Potosí?
The wettest month in San Luis Potosí is September, with an average of 88mm of precipitation.
What is the driest time of year in San Luis Potosí?
The driest month in San Luis Potosí is January, with an average of 8mm of precipitation.
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