Climate averages 1991–2020
Quillacollo weather
in September.
A warm, fairly dry month: the 3rd warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Quillacollo: daytime highs average 22.4°C and nights cool to about 9.7°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 23 mm of rain on roughly 5 days, which makes September a fairly dry month (the 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 Cochabamba (13 km away). In September its highs average 21.6°C, 0.7°C cooler than Quillacollo, with 23 mm of rain.
Among the 14 cities listed in Bolivia, Quillacollo ranks 6th of 14 for the warmest September highs and joint 2nd of 14 for the driest September (rainfall, lowest first). The mean September high of those 14 cities is 22.6°C; Quillacollo is 0.2°C cooler than that mean.
From September to October, average highs rise by 0.8°C to 23.2°C, and monthly rainfall rises from 23 mm to 40 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
Quillacollo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.8°C12.7°C | 12.7°C | 187 | 23.2 | 13.013 h |
| February | 20.7°C12.6°C | 12.6°C | 179 | 22.5 | 12.713 h |
| March | 20.7°C12.2°C | 12.2°C | 124 | 18.6 | 12.212 h |
| April | 21.1°C11.0°C | 11.0°C | 45 | 8.4 | 11.712 h |
| May | 21.7°C9.0°C | 9.0°C | 12 | 2.8 | 11.311 h |
| June | 21.4°C7.7°C | 7.7°C | 7.1 | 1.8 | 11.111 h |
| July | 21.1°C7.2°C | 7.2°C | 11 | 2.0 | 11.211 h |
| August | 21.7°C8.2°C | 8.2°C | 19 | 3.3 | 11.512 h |
| September, selected | 22.4°C9.7°C | 9.7°C | 23 | 5.4 | 12.012 h |
| October | 23.2°C11.6°C | 11.6°C | 40 | 9.5 | 12.512 h |
| November | 23.2°C12.7°C | 12.7°C | 67 | 12.7 | 12.913 h |
| December | 22.1°C13.0°C | 13.0°C | 132 | 19.9 | 13.113 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
- Cochabamba in SeptemberBolivia · 13 kmHigh 21.6°C · Low 9.7°C · 23 mm rain
- Sacaba in SeptemberBolivia · 25 kmHigh 20.0°C · Low 9.1°C · 59 mm rain
- Oruro in SeptemberBolivia · 108 kmHigh 15.6°C · Low -0.1°C · 21 mm rain
- Sucre in SeptemberBolivia · 212 kmHigh 20.1°C · Low 7.6°C · 43 mm rain
- La Paz in SeptemberBolivia · 222 kmHigh 14.3°C · Low 2.4°C · 36 mm rain
- Viacha in SeptemberBolivia · 230 kmHigh 15.2°C · Low 0.7°C · 32 mm rain
- Potosí in SeptemberBolivia · 250 kmHigh 15.7°C · Low 0.1°C · 26 mm rain
- Trinidad in SeptemberBolivia · 320 kmHigh 31.2°C · Low 22.2°C · 106 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 Quillacollo) is explained once on the Quillacollo year overview and on the Sources, method and limits page.
Cochabamba lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.