Climate averages 1991–2020
San Juan de la Maguana weather
in September.
A hot, wet month: the 3rd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in San Juan de la Maguana: daytime highs average 29.5°C and nights cool to about 21.2°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 111 mm of rain on roughly 20 days, which makes September a wet month (the 11th 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 Santa Cruz de Barahona (68 km away). In September its highs average 30.3°C, 0.7°C warmer than San Juan de la Maguana, with 85 mm of rain.
Among the 14 cities listed in the Dominican Republic, San Juan de la Maguana ranks 12th of 14 for the warmest September highs and 7th of 14 for the driest September (rainfall, lowest first). The mean September high of those 14 cities is 30.4°C; San Juan de la Maguana is 0.9°C cooler than that mean.
From September to October, average highs fall by 0.7°C to 28.8°C, and monthly rainfall falls from 111 mm to 104 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
San Juan de la Maguana climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.1°C18.0°C | 18.0°C | 14 | 3.8 | 11.111 h |
| February | 28.4°C18.6°C | 18.6°C | 26 | 6.3 | 11.512 h |
| March | 28.4°C19.5°C | 19.5°C | 71 | 12.5 | 12.012 h |
| April | 28.6°C20.5°C | 20.5°C | 101 | 16.7 | 12.613 h |
| May | 28.4°C21.1°C | 21.1°C | 122 | 19.6 | 13.013 h |
| June | 29.2°C21.3°C | 21.3°C | 74 | 16.7 | 13.213 h |
| July | 30.2°C21.3°C | 21.3°C | 62 | 15.9 | 13.113 h |
| August | 30.2°C21.5°C | 21.5°C | 103 | 18.4 | 12.813 h |
| September, selected | 29.5°C21.2°C | 21.2°C | 111 | 20.2 | 12.312 h |
| October | 28.8°C20.8°C | 20.8°C | 104 | 18.2 | 11.712 h |
| November | 28.2°C19.7°C | 19.7°C | 59 | 11.3 | 11.311 h |
| December | 28.0°C18.3°C | 18.3°C | 18 | 4.3 | 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
- Santa Cruz de Barahona in SeptemberDominican Republic · 68 kmHigh 30.3°C · Low 24.1°C · 85 mm rain
- La Vega in SeptemberDominican Republic · 86 kmHigh 31.6°C · Low 22.2°C · 61 mm rain
- Bonao in SeptemberDominican Republic · 87 kmHigh 30.4°C · Low 22.2°C · 149 mm rain
- Santiago de los Caballeros in SeptemberDominican Republic · 91 kmHigh 32.5°C · Low 22.6°C · 81 mm rain
- Croix-des-Bouquets in SeptemberHaiti · 108 kmHigh 32.1°C · Low 25.0°C · 223 mm rain
- San Francisco de Macorís in SeptemberDominican Republic · 116 kmHigh 31.8°C · Low 22.2°C · 72 mm rain
- Pétionville in SeptemberHaiti · 116 kmHigh 29.7°C · Low 22.7°C · 223 mm rain
- Cité Soleil in SeptemberHaiti · 120 kmHigh 32.3°C · Low 25.0°C · 223 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 San Juan de la Maguana) is explained once on the San Juan de la Maguana year overview and on the Sources, method and limits page.