San Luis Potosí weather by month & the best time to visit
Mexico · highland city · semi-arid climate
The best time to visit San Luis Potosí is December — its sunniest month (Sunshine Score 97/100), with January and February close behind. San Luis Potosí averages about 3,165 hours of sunshine a year. Daytime highs around 20°C / 68°F and roughly 7 mm of rain in December.
When is the best time to visit San Luis Potosí?
For sunshine, the best time to visit San Luis Potosí is December, then January and February. The dullest month is September (80/100, 96 mm of rain). The full month-by-month picture is in the table below.
How sunny is San Luis Potosí?
San Luis Potosí is one of the sunniest places on Earth: about 3,165 hours of sunshine a year. December (97/100) is noticeably better than September (80). It ranks #28 of 62 destinations in Mexico for annual sunshine, above the national median of 3,138 hours. Rain has a clear season: the wettest stretch, around August, carries about 52% of the annual 501 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 96 | 20° / 68°F | 4° / 39°F | 12 mm | 7 |
| February | 95 | 23° / 73°F | 6° / 43°F | 17 mm | 9 |
| March | 95 | 26° / 79°F | 8° / 46°F | 16 mm | 11 |
| April | 95 | 29° / 84°F | 11° / 52°F | 13 mm | 12 |
| May | 90 | 30° / 86°F | 13° / 55°F | 43 mm | 12 |
| June | 84 | 27° / 81°F | 14° / 57°F | 77 mm | 12 |
| July | 81 | 26° / 79°F | 13° / 55°F | 93 mm | 11 |
| August | 85 | 26° / 79°F | 13° / 55°F | 70 mm | 11 |
| September | 80 | 24° / 75°F | 13° / 55°F | 96 mm | 10 |
| October | 91 | 23° / 73°F | 10° / 50°F | 40 mm | 9 |
| November | 95 | 21° / 70°F | 7° / 45°F | 17 mm | 7 |
| December | 97 | 20° / 68°F | 5° / 41°F | 7 mm | 6 |
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How San Luis Potosí compares month by month: San Luis Potosí vs Aguascalientes · San Luis Potosí vs Zacatecas · San Luis Potosí vs Ciudad Madero · San Luis Potosí vs Guanajuato · all comparisons
San Luis Potosí: questions and answers
What kind of destination is San Luis Potosí?
San Luis Potosí is a highland city in Mexico at 1,838 m elevation with a semi-arid climate.
How many hours of sunshine does San Luis Potosí get a year?
San Luis Potosí gets about 3,165 hours of sunshine a year, at its best around December.
When is the best time to visit San Luis Potosí?
The sunniest time to visit San Luis Potosí is December, when the Sunshine Score peaks at 97/100 (with January and February close behind). Expect daytime highs around 20°C / 68°F.
What is the least sunny month in San Luis Potosí?
September is the least sunny month in San Luis Potosí, scoring 80/100 with about 96 mm of rain.
How strong is the sun in San Luis Potosí?
The typical midday UV index in San Luis Potosí peaks around 12 (extreme) in April, easing to about 6 (high) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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