Temperature
Pleasant by day, brisk at night.
77°Ftypical September high
Typical range
September climate
September in San Luis Potosí
Mexico · North America
Warm days with cooler nights and some sun.
Good overall
Late
Daytime high
77°F
Lows around 60°F
Rain
Several rainy days
Sun
10 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 13 wet days, the highest monthly average.
43%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
9.8 hSeptember sunshine
Heat & humidity by month
Warm days with mostly dry air.
ComfortableSeptember
Easy airWarm airHot airHumid air
Hourly temperature pattern
In September, afternoons feel about 72° and nights feel near 61°.
Very coldColdCoolComfortableWarmNight hours
Clear sky
Mostly cloudy skies this month.
28%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
6 mphSeptember Calm
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 74°F, easing to about 68°F in early evening.
Avg temp Typical range
Morning69°F
Rain30%
Cloud65%
Humid airLow
Sun intensityModerate
Midday76°F
Rain35%
Cloud64%
Humid airLow
Sun intensityStrong
Late afternoon74°F
Rain33%
Cloud60%
Humid airLow
Sun intensityModerate
Early evening68°F
Rain21%
Cloud64%
Humid airLow
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 71 | 45 | 0.6 | 3 | 9.3 | 59 |
| Feb | 76 | 48 | 0.5 | 3 | 10.2 | 54 |
| Mar | 80 | 52 | 0.6 | 4 | 11.1 | 50 |
| Apr | 84 | 56 | 0.9 | 5 | 11.7 | 49 |
| May | 85 | 59 | 1.9 | 10 | 12.1 | 57 |
| Jun | 82 | 61 | 2.8 | 11 | 11.4 | 67 |
| Jul | 80 | 60 | 3.3 | 11 | 10.7 | 71 |
| Aug | 80 | 60 | 2.4 | 10 | 10.9 | 70 |
| Sep | 77 | 60 | 3.3 | 13 | 9.8 | 75 |
| Oct | 76 | 55 | 1.7 | 7 | 9.7 | 72 |
| Nov | 73 | 50 | 0.7 | 3 | 9.7 | 68 |
| Dec | 72 | 46 | 0.4 | 2 | 9.6 | 62 |
Similar climates
Similar
Similar travel styleMexico CityMexicoSimilar travel styleAguascalientes CityMexicoSimilar travel styleGuadalajaraMexicoSimilar travel styleQuerétaroMexico
Want a side-by-side climate view? Compare San Luis Potosí with Mexico City.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 26, 2026
Data & methodology