Climate averages 1991–2020
Trinidad weather
in September.
A hot, wet month: the warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Trinidad: daytime highs average 31.2°C and nights cool to about 22.2°C. By daytime temperature it is the warmest month of the year.
Expect about 106 mm of rain on roughly 10 days, which makes September a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average September day.
The nearest other city in this atlas is Sacaba (310 km away). In September its highs average 20.0°C, 11.2°C cooler than Trinidad, with 59 mm of rain.
Among the 14 cities listed in Bolivia, Trinidad ranks 2nd of 14 for the warmest September highs and 14th of 14 for the driest September (rainfall, lowest first). The mean September high of those 14 cities is 22.6°C; Trinidad is 8.6°C warmer than that mean.
From September to October, average highs fall by 0.2°C to 31.0°C, and monthly rainfall rises from 106 mm to 161 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
Trinidad climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.3°C23.6°C | 23.6°C | 330 | 26.8 | 12.913 h |
| February | 29.1°C23.4°C | 23.4°C | 286 | 23.6 | 12.613 h |
| March | 29.3°C23.3°C | 23.3°C | 234 | 23.5 | 12.212 h |
| April | 29.0°C22.6°C | 22.6°C | 142 | 16.5 | 11.812 h |
| May | 27.6°C20.9°C | 20.9°C | 84 | 11.0 | 11.411 h |
| June | 27.4°C20.0°C | 20.0°C | 54 | 7.4 | 11.311 h |
| July | 27.9°C19.3°C | 19.3°C | 41 | 5.1 | 11.311 h |
| August | 30.3°C20.6°C | 20.6°C | 50 | 6.2 | 11.612 h |
| September, selected | 31.2°C22.2°C | 22.2°C | 106 | 10.2 | 12.012 h |
| October | 31.0°C23.3°C | 23.3°C | 161 | 16.7 | 12.412 h |
| November | 29.9°C23.3°C | 23.3°C | 239 | 19.5 | 12.813 h |
| December | 29.5°C23.6°C | 23.6°C | 298 | 25.4 | 13.013 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
- Sacaba in SeptemberBolivia · 310 kmHigh 20.0°C · Low 9.1°C · 59 mm rain
- Cochabamba in SeptemberBolivia · 314 kmHigh 21.6°C · Low 9.7°C · 23 mm rain
- Quillacollo in SeptemberBolivia · 320 kmHigh 22.4°C · Low 9.7°C · 23 mm rain
- Montero in SeptemberBolivia · 330 kmHigh 29.1°C · Low 20.0°C · 96 mm rain
- Santa Cruz de la Sierra in SeptemberBolivia · 376 kmHigh 28.9°C · Low 19.6°C · 65 mm rain
- La Paz in SeptemberBolivia · 394 kmHigh 14.3°C · Low 2.4°C · 36 mm rain
- Viacha in SeptemberBolivia · 416 kmHigh 15.2°C · Low 0.7°C · 32 mm rain
- Oruro in SeptemberBolivia · 420 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 Trinidad) is explained once on the Trinidad year overview and on the Sources, method and limits page.