Philipsburg Weather in September
September in Philipsburg brings high temperatures around 30°C (86°F) during the day, dropping to 27°C (81°F) at night, with quite a bit of rainfall expected, averaging around 134 mm (5.3 in) for the month.
Rainfall in Philipsburg in September
Climate statistics over the past 30 years suggest around 19 days of rain, with 134 mm (5.3 in) average for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Philipsburg in September
Daytime temperatures in Philipsburg reach 30°C (86°F) in September, dropping to 27°C (81°F) at night. This kind of day-to-night contrast is typical for this time of year. At 27°C (81°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.
Sunshine in Philipsburg in September
The month enjoys around 232 hours of sunshine, creating mostly sunny days with good weather conditions.
Wind Speed in Philipsburg in September
September has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.
Average water temperature in September
At 29°C (84°F), the water is very warm — more like a heated pool than the sea. Great for those who like warm water, though some may find it less refreshing on a hot day.September in Philipsburg can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Sint Maarten, check out our Philipsburg's climate page.
Philipsburg Temperature in September
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Water Temperature
29°C (84°F) *
Chance of Rain
62%
Precipitation
134 mm (5.3 in)
Rainy days
19 days
Humidity
78% *
Windspeed
5 m/s (10 knots) *
Sunshine
232 hours *
Percentage Sunshine
61% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Philipsburg typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 27°C (81°F).
Average temperatures in September
Historical weather for Philipsburg in September
Browse day-by-day weather records for Philipsburg spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Philipsburg historical weather extremes in September
Based on weather observations in Philipsburg between 1990 and 2025, these are the recorded extremes during September.
- The warmest day in September was on September 3, 1992, with a maximum of 36°C (97°F).
- Philipsburg experienced its chilliest September day on September 4, 2009, reaching only 27°C (81°F).
- The lowest overnight temperature recorded in September was 22°C (72°F) (September 30, 2017).
Best Places in Sint Maarten in September
Find out more about the weather in Sint Maarten and which places have the best travel conditions in this month. See all of Sint Maarten in September →
perfect weather
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What to Wear in Philipsburg 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. The water temperature sits at about 29°C (84°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Philipsburg 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 Sint Maarten, check out our Philipsburg's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Philipsburg climate overview or explore weather in Sint Maarten.
