Climate averages 1991–2020
Bonao weather
in September.
A hot, wet month: one of the warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Bonao: daytime highs average 30.4°C and nights cool to about 22.2°C. By daytime temperature it is one of the warmest months of the year.
Expect about 149 mm of rain on roughly 22 days, which makes September a wet month (the 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 (33 km away). In September its highs average 31.6°C, 1.2°C warmer than Bonao, with 61 mm of rain.
Among the 14 cities listed in the Dominican Republic, Bonao ranks 5th 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 30.4°C; Bonao is level with that mean.
From September to October, average highs fall by 0.9°C to 29.5°C, and monthly rainfall falls from 149 mm to 133 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
Bonao climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.4°C18.8°C | 18.8°C | 75 | 14.1 | 11.111 h |
| February | 26.9°C18.9°C | 18.9°C | 70 | 12.8 | 11.512 h |
| March | 27.7°C19.4°C | 19.4°C | 115 | 15.4 | 12.012 h |
| April | 28.4°C20.5°C | 20.5°C | 170 | 19.5 | 12.613 h |
| May | 29.0°C21.4°C | 21.4°C | 253 | 23.2 | 13.013 h |
| June | 30.1°C22.0°C | 22.0°C | 132 | 19.9 | 13.213 h |
| July | 30.2°C22.4°C | 22.4°C | 105 | 21.0 | 13.213 h |
| August | 30.4°C22.5°C | 22.5°C | 125 | 21.8 | 12.813 h |
| September, selected | 30.4°C22.2°C | 22.2°C | 149 | 21.9 | 12.312 h |
| October | 29.5°C21.8°C | 21.8°C | 133 | 20.3 | 11.712 h |
| November | 27.8°C20.8°C | 20.8°C | 115 | 17.4 | 11.311 h |
| December | 26.8°C19.5°C | 19.5°C | 73 | 13.5 | 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 · 33 kmHigh 31.6°C · Low 22.2°C · 61 mm rain
- San Francisco de Macorís in SeptemberDominican Republic · 43 kmHigh 31.8°C · Low 22.2°C · 72 mm rain
- Santiago de los Caballeros in SeptemberDominican Republic · 64 kmHigh 32.5°C · Low 22.6°C · 81 mm rain
- Santo Domingo Oeste in SeptemberDominican Republic · 65 kmHigh 29.9°C · Low 22.9°C · 120 mm rain
- San Cristóbal in SeptemberDominican Republic · 67 kmHigh 29.9°C · Low 23.3°C · 120 mm rain
- Santo Domingo in SeptemberDominican Republic · 76 kmHigh 29.9°C · Low 23.4°C · 120 mm rain
- Santo Domingo Este in SeptemberDominican Republic · 78 kmHigh 29.4°C · Low 23.9°C · 148 mm rain
- San Juan de la Maguana in SeptemberDominican Republic · 87 kmHigh 29.5°C · Low 21.2°C · 111 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 Bonao) is explained once on the Bonao year overview and on the Sources, method and limits page.