Last updated: August 23, 2025
In September, the average temperature in Don Juan, Dominican Republic reaches a warm 27°C (80°F). Expect a comfortable minimum of 21°C (71°F) and a sizzling maximum of 34°C (94°F). During this time, the region experiences a total precipitation of 123 mm (4.8 in) over 21 days, contributing to an average humidity of 73%. Prepare for a balmy atmosphere perfect for exploring!
In September in Don Juan, the average temperature is 27°C (80°F). Maximums can reach 34°C (94°F), and minimums can be as low as 21°C (71°F). This makes it a perfect time for travelers to enjoy warm weather while exploring the sights and sounds of Don Juan.
In Don Juan in September, the total precipitation amount is 123 mm (4.8 in) over the course of 21 days.
In Don Juan in September humidity is 73%. With an average temperature of 27°C (80°F), this humidity feels like a warm, enveloping blanket that can make traveling feel sticky and slightly uncomfortable, prompting frequent breaks in the shade and plenty of hydration.
In Don Juan in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Don Juan.
UV Risk Categories
Weather in Don Juan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Don Juan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 23°C (74°F) | 48 mm (1.9 inches) | 65% | very high |
| February Weather | 24°C (75°F) | 65 mm (2.6 inches) | 63% | extreme |
| March Weather | 24°C (75°F) | 74 mm (2.9 inches) | 59% | extreme |
| April Weather | 25°C (77°F) | 97 mm (3.8 inches) | 58% | extreme |
| May Weather | 26°C (78°F) | 116 mm (4.6 inches) | 57% | extreme |
| June Weather | 26°C (80°F) | 100 mm (3.9 inches) | 57% | extreme |
| July Weather | 27°C (80°F) | 133 mm (5.2 inches) | 63% | extreme |
| August Weather | 27°C (80°F) | 160 mm (6.3 inches) | 71% | extreme |
| September Weather | 27°C (80°F) | 123 mm (4.8 inches) | 73% | extreme |
| October Weather | 26°C (79°F) | 132 mm (5.2 inches) | 72% | extreme |
| November Weather | 25°C (77°F) | 123 mm (4.8 inches) | 72% | very high |
| December Weather | 24°C (76°F) | 56 mm (2.2 inches) | 69% | very high |