Koolbaai Weather in July
Koolbaai in July averages 29°C (84°F) during the day and 26°C (79°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Koolbaai in July
Looking at the last 30 years, the data shows about 17 days with rain, averaging 84 mm (3.3 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Koolbaai in July
July tends to be one of the perfect months in Koolbaai, with 29°C (84°F) in the afternoon and 26°C (79°F) overnight. Overall, the month follows a fairly predictable daily temperature pattern. Nights remain warm at around 26°C (79°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.
Sunshine in Koolbaai in July
Enjoy a sunny month with about 258 hours of sunshine, the clear skies make Koolbaai even more beautiful.
Wind Speed in Koolbaai in July
Wind speeds average 5 m/s (10 knots) during July. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.
Average water temperature in July
The water temperature is 28°C (82°F), which most people find very comfortable. A good month for swimming and water sports.If you're a fan of comfortable temperatures and drier conditions, July is a great time to visit.
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 July
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Water Temperature
28°C (82°F) *
Chance of Rain
56%
Precipitation
84 mm (3.3 in)
Rainy days
17 days
Humidity
75% *
Windspeed
5 m/s (10 knots) *
Sunshine
258 hours *
Percentage Sunshine
68% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Koolbaai typically stay consistent throughout July, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 27°C (81°F).
Average temperatures in July
Historical weather for Koolbaai in July
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 July
According to our 49 years of weather records for Koolbaai, the following extremes were recorded between 1976 and 2025.
- Koolbaai recorded its highest July temperature of 38°C (100°F) on July 15, 2002.
- On July 18, 1979, Koolbaai saw its coldest July day with temperatures maxing out at 27°C (81°F).
- Nighttime temperatures dropped to 23°C (73°F) on July 8, 1997, marking the coldest July night on record.
Best Places in Sint Maarten in July
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 July →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Koolbaai in July
Warm temperatures in July make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Koolbaai in July
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.
