Last updated: August 31, 2025
In Lower Prince's Quarter, Sint Maarten, the average temperature in September hovers around 28°C (82°F), creating a warm and inviting atmosphere. Expect minimums of 25°C (77°F) and highs reaching up to 29°C (85°F). However, don't forget your umbrella, as precipitation averages 161 mm (6.3 in) over 22 wet days. With an average humidity of 80%, it's a month that beautifully balances warmth with a touch of tropical freshness.
In September in Lower Prince's Quarter, the average temperature is 28°C (82°F). The maximum can reach 29°C (85°F), while the minimum can be as low as 25°C (77°F). This pleasant weather makes it an ideal time for travelers to explore and enjoy all the outdoor activities that Lower Prince's Quarter has to offer.
In Lower Prince's Quarter in September, the total precipitation amount is 161 mm (6.3 in), occurring over 22 days.
In Lower Prince's Quarter in September, humidity is 80%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket enveloping you, making outdoor activities sweaty and demanding frequent breaks in the shade while traveling.
In Lower Prince's Quarter in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Lower Prince's Quarter, you can check here.
UV Risk Categories
Weather in Lower Prince's Quarter varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Lower Prince's Quarter, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 25°C (78°F) | 35 mm (1.4 inches) | 77% | very high |
| February Weather | 25°C (77°F) | 35 mm (1.4 inches) | 77% | extreme |
| March Weather | 25°C (77°F) | 27 mm (1.1 inches) | 77% | extreme |
| April Weather | 25°C (78°F) | 35 mm (1.4 inches) | 78% | extreme |
| May Weather | 26°C (79°F) | 49 mm (1.9 inches) | 79% | extreme |
| June Weather | 27°C (81°F) | 50 mm (2.0 inches) | 81% | extreme |
| July Weather | 27°C (81°F) | 83 mm (3.3 inches) | 83% | extreme |
| August Weather | 28°C (82°F) | 87 mm (3.4 inches) | 82% | extreme |
| September Weather | 28°C (82°F) | 161 mm (6.3 inches) | 80% | extreme |
| October Weather | 27°C (81°F) | 113 mm (4.5 inches) | 79% | extreme |
| November Weather | 27°C (80°F) | 96 mm (3.8 inches) | 79% | very high |
| December Weather | 26°C (79°F) | 48 mm (1.9 inches) | 78% | very high |