Santo Domingo in September
In September, Santo Domingo averages 31°C (88°F) during the day and 23°C (73°F) at night, with around 11 days of rain (165 mm total).
ShoulderConditions are warm and beach-friendly. Plan for unsettled weather and bring rain gear.
September in Santo Domingo is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How September compares to the rest of the year in Santo Domingo
September is in the middle of the year for warmth in Santo Domingo (5th of 12) and moderately rainy compared to the rest of the year (5th of 12). Daytime temperature runs 1°C above the annual average (30°C). September runs 1°C cooler than August (32°C) and stays flat into October.
September sunrise & sunset in Santo Domingo
Times shown for Santo Domingo local time (America/Santo_Domingo), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Santo Domingo — September
Golden-hour and blue-hour windows for the 15th of September, in Santo Domingo's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Santo Domingo in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Santo Domingo's popularity.
Crowds & pricing — September in Santo Domingo
Santo Domingo is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — September in Santo Domingo
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Santo Domingo in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 29°C / 84°F | 20°C / 68°F | 55 mm | 7 | 0 |
| February | 29°C / 84°F | 20°C / 68°F | 40 mm | 6 | 0 |
| March | 30°C / 86°F | 20°C / 68°F | 40 mm | 6 | 0 |
| April | 30°C / 86°F | 21°C / 70°F | 75 mm | 8 | 0 |
| May | 31°C / 88°F | 22°C / 72°F | 170 mm | 11 | 0 |
| June | 31°C / 88°F | 23°C / 73°F | 135 mm | 11 | 0 |
| July | 31°C / 88°F | 23°C / 73°F | 140 mm | 11 | 0 |
| August | 32°C / 90°F | 23°C / 73°F | 155 mm | 11 | 0 |
| September | 31°C / 88°F | 23°C / 73°F | 165 mm | 11 | 0 |
| October | 31°C / 88°F | 22°C / 72°F | 150 mm | 11 | 0 |
| November | 30°C / 86°F | 22°C / 72°F | 105 mm | 9 | 0 |
| December | 29°C / 84°F | 21°C / 70°F | 75 mm | 7 | 0 |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Santo Domingo in September →
Frequently asked questions
How hot is Santo Domingo in September?
In September, Santo Domingo averages a high of 31°C (88°F) and a low of 23°C (73°F) — generally hot.
Does it rain a lot in Santo Domingo in September?
September can be fairly wet in Santo Domingo, with about 11 rainy days on average.
Is September a good time to visit Santo Domingo?
September is hot. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Santo Domingo in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full September packing list for Santo Domingo for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.