Koolbaai Weather in October
Thinking of visiting Koolbaai in October? Expect high temperatures reaching 29°C (84°F) during the day, dropping to 26°C (79°F) at night, and be prepared for the wettest month of the year.
Rainfall in Koolbaai in October
Prepare for the wettest month with an umbrella to protect yourself from frequent rain. You can expect rain on roughly 20 days based on historical data, averaging 139 mm (5.5 in) 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 Koolbaai in October
Daytime highs in Koolbaai in October reach 29°C (84°F), with nights around 26°C (79°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Sunshine in Koolbaai in October
The days are predominantly sunny, with an estimated total of around 244 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in Koolbaai in October
In October, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.
Average water temperature in October
With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, May, June, July and December typically offer the best circumstances for Koolbaai.
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 Koolbaai's climate page.
Koolbaai Temperature in October
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Water Temperature
28°C (82°F) *
Chance of Rain
68%
Precipitation
139 mm (5.5 in)
Rainy days
20 days
Humidity
80% *
Windspeed
4 m/s (8 knots) *
Sunshine
244 hours *
Percentage Sunshine
65% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Koolbaai typically stay consistent throughout October, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in October
Historical weather for Koolbaai in October
Browse day-by-day weather records for Koolbaai spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Koolbaai historical weather extremes in October
Our historical data for Koolbaai spans 1976 to 2025, revealing these weather extremes.
- On October 29, 1987, temperatures climbed to 34°C (93°F), marking the warmest October day on record.
- The lowest daytime temperature in October was 26°C (79°F), recorded on October 26, 2007.
- The coldest night in October in Koolbaai was on October 25, 2011, with a minimum of 20°C (68°F).
Best Places in Sint Maarten in October
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 October →
perfect weather
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What to Wear in Koolbaai in October
Warm but pleasant conditions in Koolbaai in October. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 28°C (82°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Koolbaai in October
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 Koolbaai's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Koolbaai climate overview or explore weather in Sint Maarten.
