La Romana Weather in September
La Romana in September sees very high daytime temperatures of 32°C (90°F) and nighttime lows of 25°C (77°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.
Rainfall in La Romana in September
This is the wettest month of the year, so having an umbrella ready is a smart choice. Records from the past 30 years suggest around 15 days of rain, with 114 mm (4.5 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in La Romana in September
Temperatures in La Romana in September top out at 32°C (90°F) and drop to 25°C (77°F) overnight. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in La Romana in September
Expect sunny days throughout the month, with an estimated 245 hours of sunshine. This makes it a pleasant time to visit La Romana.If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit La Romana. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Dominican Republic, check out our La Romana's climate page.
La Romana Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
32°C (90°F)
Chance of Rain
50%
Precipitation
114 mm (4.5 in)
Rainy days
15 days
Humidity
83% *
Sunshine
245 hours *
Percentage Sunshine
*
Daily Historical Temperatures
46-year average (1976-2025)
Based on our historical records, temperatures in La Romana typically stay consistent throughout September, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Daily Historical Precipitation
46-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for La Romana in September
Browse day-by-day weather records for La Romana spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
La Romana historical weather extremes in September
Based on 26 years of weather observations in La Romana between 1999 and 2025, these are the recorded extremes.
- On September 19, 2012, temperatures climbed to 38°C (100°F), marking the warmest September day on record.
- La Romana experienced its chilliest September day on September 23, 2008, reaching only 25°C (77°F).
- La Romana registered its coldest September night on September 28, 2023, with temperatures dropping to 20°C (68°F).
Best Places in the Dominican Republic in September
Find out more about the weather in the Dominican Republic and which places have the best travel conditions in this month. See all of the Dominican Republic in September →
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What to Wear in La Romana in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in La Romana in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Dominican Republic, check out our La Romana's climate page.
Temperature Rainfall Sunshine Humidity
See the full La Romana climate overview or explore weather in the Dominican Republic.
