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Potosí Weather in September
Potosí in September averages 18°C (64°F) during the day and 2°C (36°F) at night. Some rainfall is typical for this time of year.
Rainfall in Potosí in September
Historically, September sees about 2 days of rain, with a monthly average of 31 mm (1.2 in). Showers tend to be short but heavy rather than persistent drizzle. When it rains, it usually means it, but it doesn't last long.
Temperature in Potosí in September
In September, Potosí gets pleasant temperatures, with highs of 18°C (64°F). Nights cool to around 2°C (36°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 2°C (36°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August, September, October and November typically offer the best circumstances for Potosí.
Potosí Temperature in September
Min Temperature
2°C (36°F)
Max Temperature
18°C (64°F)
Chance of Rain
8%
Precipitation
31 mm (1.2 in)
Rainy days
2 days
Potosí Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Potosí - and find the best time to visit.
Historical weather records for Potosí in September
Browse day-by-day weather records for Potosí spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Potosí historical weather extremes in September
The extremes listed below come from historical weather data collected in Potosí from 2006 through 2025.
- On September 27, 2025, temperatures climbed to 23°C (73°F), marking the warmest September day on record.
- Potosí experienced its chilliest September day on September 16, 2017, reaching only 9°C (48°F).
- Potosí registered its coldest September night on September 9, 2025, with temperatures dropping to -8°C (18°F).
- The wettest September day on record brought 17 mm (0.7 in) of precipitation to Potosí (September 16, 2025).
Best Places in Bolivia in September
Find out more about the weather in Bolivia and which places have the best travel conditions in this month. See all of Bolivia in September →
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).
What to Wear in Potosí in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers.
What To Do in Potosí in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Camping5/10 -
Outdoor sports10/10
Potosí 3-Day Forecast
More climate data for Potosí
See the full Potosí climate overview or explore weather in Bolivia.
Popular in September
Where to go in September - average daytime high across popular destinations.
Santa Cruz de la Sierra
31°C (88°F) Sucre23°C (73°F) Tarija21°C (70°F) Cochabamba19°C (66°F) Potosí18°C (64°F) Uyuni17°C (63°F) La Paz
15°C (59°F) Copacabana14°C (57°F) Bucket list
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