Santa Cruz de la Sierra Weather in September
September in Santa Cruz de la Sierra brings very high temperatures around 31°C (88°F) during the day, dropping to 20°C (68°F) at night, with quite a bit of rainfall expected, averaging around 69 mm (2.7 in) for the month.
Rainfall in Santa Cruz de la Sierra in September
Historically, approximately 5 days this month are expected to have rain, averaging 69 mm (2.7 in). The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Santa Cruz de la Sierra in September
In September, Santa Cruz de la Sierra sees very high temperatures, with highs of 31°C (88°F). Nights drop to around 20°C (68°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 20°C (68°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Wind Speed in Santa Cruz de la Sierra in September
Wind speeds average 6 m/s (12 knots) during September. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.If your ideal day consists of dry skies and pleasant temperatures, May, June, July and August typically offer the best circumstances for Santa Cruz de la Sierra.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bolivia, check out our Santa Cruz de la Sierra's climate page.
Santa Cruz de la Sierra Temperature in September
Min Temperature
20°C (68°F)
Max Temperature
31°C (88°F)
Chance of Rain
17%
Precipitation
69 mm (2.7 in)
Rainy days
5 days
Humidity
64%
Windspeed
6 m/s (12 knots)
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Santa Cruz de la Sierra typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are pleasant, with lows typically ranging from 17°C (63°F) to 20°C (68°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Santa Cruz de la Sierra in September
Browse day-by-day weather records for Santa Cruz de la Sierra spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santa Cruz de la Sierra historical weather extremes in September
Based on 42 years of weather observations in Santa Cruz de la Sierra between 1983 and 2025, these are the recorded extremes.
- The warmest day in September was on September 30, 2007, with a maximum of 39°C (102°F).
- Nighttime temperatures dropped to 8°C (46°F) on September 15, 1990, marking the coldest September night on record.
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
What to Wear in Santa Cruz de la Sierra in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket.What To Do in Santa Cruz de la Sierra in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bolivia, check out our Santa Cruz de la Sierra's climate page.
Temperature Rainfall Humidity Wind Speed
See the full Santa Cruz de la Sierra climate overview or explore weather in Bolivia.
