Climate averages 1991–2020
Santa Cruz de la Sierra weather
in September.
A hot, moderately wet month: the 5th warmest and the joint 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Santa Cruz de la Sierra: daytime highs average 28.9°C and nights cool to about 19.6°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 65 mm of rain on roughly 7 days, which makes September a moderately wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 59 min on an average September day.
The nearest other city in this atlas is Montero (50 km away). In September its highs average 29.1°C, about as warm as Santa Cruz de la Sierra, with 96 mm of rain.
Among the 14 cities listed in Bolivia, Santa Cruz de la Sierra ranks 4th of 14 for the warmest September highs and 11th of 14 for the driest September (rainfall, lowest first). The mean September high of those 14 cities is 22.6°C; Santa Cruz de la Sierra is 6.3°C warmer than that mean.
From September to October, average highs rise by 0.8°C to 29.7°C, and monthly rainfall rises from 65 mm to 85 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Santa Cruz de la Sierra climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.4°C22.0°C | 22.0°C | 172 | 18.1 | 13.113 h |
| February | 28.7°C21.7°C | 21.7°C | 141 | 16.8 | 12.713 h |
| March | 28.6°C21.4°C | 21.4°C | 118 | 14.6 | 12.212 h |
| April | 27.4°C20.2°C | 20.2°C | 65 | 10.7 | 11.712 h |
| May | 24.6°C18.0°C | 18.0°C | 61 | 10.4 | 11.311 h |
| June | 23.6°C17.0°C | 17.0°C | 53 | 8.9 | 11.111 h |
| July | 23.8°C16.3°C | 16.3°C | 44 | 6.1 | 11.211 h |
| August | 26.7°C17.9°C | 17.9°C | 44 | 5.3 | 11.512 h |
| September, selected | 28.9°C19.6°C | 19.6°C | 65 | 7.0 | 12.012 h |
| October | 29.7°C21.1°C | 21.1°C | 85 | 10.5 | 12.512 h |
| November | 29.5°C21.3°C | 21.3°C | 118 | 13.1 | 12.913 h |
| December | 29.2°C21.9°C | 21.9°C | 165 | 17.8 | 13.213 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Montero in SeptemberBolivia · 50 kmHigh 29.1°C · Low 20.0°C · 96 mm rain
- Sucre in SeptemberBolivia · 260 kmHigh 20.1°C · Low 7.6°C · 43 mm rain
- Sacaba in SeptemberBolivia · 306 kmHigh 20.0°C · Low 9.1°C · 59 mm rain
- Cochabamba in SeptemberBolivia · 319 kmHigh 21.6°C · Low 9.7°C · 23 mm rain
- Quillacollo in SeptemberBolivia · 331 kmHigh 22.4°C · Low 9.7°C · 23 mm rain
- Potosí in SeptemberBolivia · 337 kmHigh 15.7°C · Low 0.1°C · 26 mm rain
- Trinidad in SeptemberBolivia · 376 kmHigh 31.2°C · Low 22.2°C · 106 mm rain
- Oruro in SeptemberBolivia · 414 kmHigh 15.6°C · Low -0.1°C · 21 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Santa Cruz de la Sierra) is explained once on the Santa Cruz de la Sierra year overview and on the Sources, method and limits page.