Visit the Rainbow Mountains
The Rainbow Mountain (Vinicunca) is acolored rainbow mountain that will steal your heart forever and the view from the top will take your breath away.
Thinking of visiting Koolbaai in March? Expect high temperatures reaching 27°C (81°F) during the day, dropping to 24°C (75°F) at night, with the driest conditions of the year.
If you favor pleasant temperatures and minimal rainfall, March is one of the best months to visit Koolbaai.
Pick a month to see the average temperature, rainfall and sunshine in Koolbaai - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Koolbaai typically stay consistent throughout March, with daily highs averaging around 27°C (81°F). Nights are warm, with lows around 24°C (75°F).
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.
Based on 25 years of weather observations in Koolbaai between 2001 and 2026, these are the recorded extremes.
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 March →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm weather calls for comfortable, breathable clothing in March. 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). Some rain is possible, so pack something to handle light showers. Expect water temperatures of around 26°C (79°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.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Koolbaai climate overview or explore weather in Sint Maarten.
Where to go in March - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Visit the Rainbow Mountains
The Rainbow Mountain (Vinicunca) is acolored rainbow mountain that will steal your heart forever and the view from the top will take your breath away.
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