Climate averages 1991–2020
Santiago de los Caballeros weather
in September.
A hot, moderately wet month: the 3rd warmest and the joint 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Santiago de los Caballeros: daytime highs average 32.5°C and nights cool to about 22.6°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 81 mm of rain on roughly 15 days, which makes September a moderately wet month (the joint 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 16 min on an average September day.
The nearest other city in this atlas is La Vega (31 km away). In September its highs average 31.6°C, 0.8°C cooler than Santiago de los Caballeros, with 61 mm of rain.
Among the 14 cities listed in the Dominican Republic, Santiago de los Caballeros ranks 1st of 14 for the warmest September highs and 3rd of 14 for the driest September (rainfall, lowest first). The mean September high of those 14 cities is 30.4°C; Santiago de los Caballeros is 2.1°C warmer than that mean.
From September to October, average highs fall by 1.4°C to 31.1°C, and monthly rainfall stays at 81 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
Santiago de los Caballeros climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.5°C19.1°C | 19.1°C | 37 | 7.6 | 11.111 h |
| February | 28.2°C19.2°C | 19.2°C | 34 | 7.0 | 11.511 h |
| March | 29.1°C19.4°C | 19.4°C | 48 | 9.1 | 12.012 h |
| April | 30.0°C20.5°C | 20.5°C | 72 | 12.4 | 12.613 h |
| May | 30.8°C21.5°C | 21.5°C | 99 | 16.8 | 13.013 h |
| June | 32.4°C22.5°C | 22.5°C | 49 | 11.1 | 13.313 h |
| July | 32.7°C23.0°C | 23.0°C | 33 | 9.4 | 13.213 h |
| August | 33.0°C23.1°C | 23.1°C | 52 | 10.8 | 12.813 h |
| September, selected | 32.5°C22.6°C | 22.6°C | 81 | 14.7 | 12.312 h |
| October | 31.1°C22.0°C | 22.0°C | 81 | 15.1 | 11.712 h |
| November | 28.8°C20.9°C | 20.9°C | 64 | 12.8 | 11.211 h |
| December | 27.8°C19.7°C | 19.7°C | 37 | 7.8 | 11.011 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
- La Vega in SeptemberDominican Republic · 31 kmHigh 31.6°C · Low 22.2°C · 61 mm rain
- San Francisco de Macorís in SeptemberDominican Republic · 49 kmHigh 31.8°C · Low 22.2°C · 72 mm rain
- Bonao in SeptemberDominican Republic · 64 kmHigh 30.4°C · Low 22.2°C · 149 mm rain
- San Juan de la Maguana in SeptemberDominican Republic · 91 kmHigh 29.5°C · Low 21.2°C · 111 mm rain
- Santo Domingo Oeste in SeptemberDominican Republic · 128 kmHigh 29.9°C · Low 22.9°C · 120 mm rain
- San Cristóbal in SeptemberDominican Republic · 130 kmHigh 29.9°C · Low 23.3°C · 120 mm rain
- Santo Domingo in SeptemberDominican Republic · 137 kmHigh 29.9°C · Low 23.4°C · 120 mm rain
- Santo Domingo Este in SeptemberDominican Republic · 139 kmHigh 29.4°C · Low 23.9°C · 148 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 Santiago de los Caballeros) is explained once on the Santiago de los Caballeros year overview and on the Sources, method and limits page.