San Luis Potosí Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in San Luis Potosí, Mexico in September.

Thinking about venturing to San Luis Potosí, Mexico this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in San Luis Potosí in September

San Luis Potosí, Mexico is a region in Mexico. September in San Luis Potosí generally has temperatures that range from warm to very warm, with precipitation levels ranging from moderate to heavy.

Temperatures

The average maximum daytime temperatures vary from warm in San Luis Potosí at 25°C (77°F) to very warm in Ciudad Valles at 33°C (91°F). Nighttime temperatures generally drop to 23°C (73°F) in Ciudad Valles and 14°C (57°F) in San Luis Potosí. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.

For a closer look at conditions across San Luis Potosí, Mexico, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Real de Catorce with an average of 72 mm (2.8 in) to heavy rainfall in Xilitla with 321 mm (13 in). It experiences its highest rainfall in this month of the year. Come prepared by bringing an umbrella.

Explore San Luis Potosí by month

Pick a month to see the average temperature, rainfall and sunshine in San Luis Potosí — and find the best time to visit. (based on Ciudad Valles)

Best Places to Visit in San Luis Potosí in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across San Luis Potosí.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in San Luis Potosí

What is the weather like in September for some of the most popular destinations in San Luis Potosí, Mexico?

Temperature range in San Luis Potosí (September)

Precipitation variation in San Luis Potosí (September)

Ciudad Valles

In September Ciudad Valles generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
35°C (95°F)
33°C (91°F)
31°C (88°F)
Min temperature
24°C (75°F)
23°C (73°F)
21°C (70°F)
Monthly rainfall
158 mm (6.2 in)
242 mm (9.5 in)
131 mm (5.2 in)
Monthly rainy days
9 days
13 days
8 days
Weather conditions

San Luis Potosí

In September San Luis Potosí generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 14°C (57°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
27°C (81°F)
25°C (77°F)
25°C (77°F)
Min temperature
15°C (59°F)
14°C (57°F)
12°C (54°F)
Monthly sun hours
250 hours
195 hours
217 hours
Monthly rainfall
76 mm (3 in)
102 mm (4 in)
49 mm (1.9 in)
Monthly rainy days
5 days
7 days
4 days
Weather conditions

Real de Catorce

In September Real de Catorce generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 15°C (59°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
29°C (84°F)
27°C (81°F)
26°C (79°F)
Min temperature
16°C (61°F)
15°C (59°F)
13°C (55°F)
Monthly rainfall
44 mm (1.7 in)
72 mm (2.8 in)
37 mm (1.5 in)
Monthly rainy days
6 days
6 days
4 days
Weather conditions

Río Verde

In September Río Verde generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 19°C (66°F) and heavy monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
30°C (86°F)
29°C (84°F)
27°C (81°F)
Min temperature
19°C (66°F)
19°C (66°F)
16°C (61°F)
Monthly rainfall
103 mm (4.1 in)
163 mm (6.4 in)
89 mm (3.5 in)
Monthly rainy days
8 days
11 days
6 days
Weather conditions

Matehuala

In September Matehuala generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 15°C (59°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
29°C (84°F)
27°C (81°F)
26°C (79°F)
Min temperature
16°C (61°F)
15°C (59°F)
13°C (55°F)
Monthly rainfall
45 mm (1.8 in)
80 mm (3.1 in)
44 mm (1.7 in)
Monthly rainy days
7 days
7 days
4 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in San Luis Potosí, in Mexico.

Popular cities in September

Day & night temperatures, rainfall and average weather in San Luis Potosí in September.

City Weather Day temp Night temp Rainfall
Ciudad Valles 33°C (91°F) 23°C (73°F) 242 mm (9.5 in)
San Luis Potosí 25°C (77°F) 14°C (57°F) 102 mm (4 in)
Real de Catorce 27°C (81°F) 15°C (59°F) 72 mm (2.8 in)
Río Verde 29°C (84°F) 19°C (66°F) 163 mm (6.4 in)
Matehuala 27°C (81°F) 15°C (59°F) 80 mm (3.1 in)
Tamasopo 29°C (84°F) 20°C (68°F) 203 mm (8 in)

San Luis Potosí weather in September: frequently asked questions

What is the weather like in San Luis Potosí, Mexico in September?

In September, San Luis Potosí, Mexico generally has poor weather conditions. Ciudad Valles sees daytime temperatures near 33°C (91°F), with nights cooling to roughly 23°C (73°F).

What is the average temperature in San Luis Potosí, Mexico in September?

Ciudad Valles averages a daytime maximum of 33°C (91°F) in September, with overnight lows close to 23°C (73°F).

Does San Luis Potosí, Mexico get a lot of rain in September?

Expect plenty of rainfall. Ciudad Valles records an average of 242 mm (9.5 in) in September, putting it among the wetter months for San Luis Potosí, Mexico.

Is September a Good Time to Visit San Luis Potosí, Mexico?

Given the typically poor weather conditions in Ciudad Valles, September may not be the ideal time to visit San Luis Potosí, Mexico.

Generally speaking, the best visiting conditions can be found in January, February, November and December offering mostly perfect weather in Ciudad Valles. On the other hand, the weather in April, May, June, July, August and September tend to be poor.

Interested in more climate information?

We have much more information about the climate in San Luis Potosí.

Weather and climate has detailed information for every country in the world. Are you going to Mexico? Get detailed historical weather averages for many cities in Mexico.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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