Sosúa
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Sosúa Weather in September

In Sosúa, September brings very high daytime temperatures around 30°C (86°F), with nights cooling to 25°C (77°F). Expect quite a bit of rainfall this month.

Rainfall in Sosúa in September

Based on our climate data of the past 30 years, about 15 days of rain are anticipated, with 74 mm (2.9 in) on average. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Sosúa in September

Temperatures in Sosúa in September top out at 30°C (86°F) and drop to 25°C (77°F) overnight. If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. 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. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.

Wind Speed in Sosúa in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in September

The water reaches 29°C (84°F) this month. It's on the warm side, which suits people who prefer that, but don't expect a cooling dip if the air temperature is also high.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. February, March, April, May and October typically offer the best weather for Sosúa.

Sosúa Temperature in September

Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Water Temperature
29°C (84°F) *
Chance of Rain
51%
Precipitation
74 mm (2.9 in)
Rainy days
15 days
Humidity
78% *
Windspeed
3 m/s (6 knots) *
* Data from: Puerto Plata, the Dominican Republic (16 KM, 10 Miles).

Sosúa Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Sosúa - and find the best time to visit.

Daily Historical Temperatures

47-year average (1976-2025)

Based on our historical records, temperatures in Sosúa typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).

Average temperatures in September

Daily Historical Precipitation

47-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

Historical weather records for Sosúa in September

Browse day-by-day weather records for Sosúa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Sosúa historical weather extremes in September

Based on weather observations in Sosúa between 1999 and 2025, these are the recorded extremes during September.

  • Sosúa recorded its highest September temperature of 37°C (99°F) on September 15, 2024.
  • Sosúa experienced its chilliest September day on September 19, 2022, reaching only 25°C (77°F).
  • The coldest night in September in Sosúa was on September 27, 2018, with a minimum of 19°C (66°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 →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Sosúa 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). Rain is likely on several days, so bring a good rain jacket. With water temperatures around 29°C (84°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes.

What To Do in Sosúa in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    7/10
  • Outdoor sports
    7/10

Sosúa 3-Day Forecast

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.