Simpson Bay Weather in May
May in Simpson Bay sees daytime temperatures around 28°C (82°F) and lows of 26°C (79°F) at night. With around 74 mm (2.9 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Simpson Bay in May
This month experiences about 15 days of rain according to historical data, averaging 74 mm (2.9 in). Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Simpson Bay in May
Simpson Bay in May is worth a visit. The temperature is perfect, with 28°C (82°F) during the day and 26°C (79°F) at night. This kind of day-to-night contrast is typical for this time of year. At 26°C (79°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Simpson Bay in May
Expect a lot of sunshine this month, with about 250 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in Simpson Bay in May
May 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 May
With water at 27°C (81°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 Simpson Bay.
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 Simpson Bay's climate page.
Simpson Bay Temperature in May
Min Temperature
26°C (79°F)
Max Temperature
28°C (82°F)
Water Temperature
27°C (81°F) *
Chance of Rain
50%
Precipitation
74 mm (2.9 in)
Rainy days
15 days
Humidity
77% *
Windspeed
5 m/s (10 knots) *
Sunshine
250 hours *
Percentage Sunshine
65% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Simpson Bay typically stay consistent throughout May, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in May
Historical weather for Simpson Bay in May
Browse day-by-day weather records for Simpson Bay spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Simpson Bay historical weather extremes in May
Based on 44 years of weather observations (1981-2025), these are the most extreme conditions recorded in Simpson Bay.
- The hottest May day on record in Simpson Bay reached 34°C (93°F) (May 9, 1993).
- The lowest daytime temperature in May was 25°C (77°F), recorded on May 11, 1986.
- The lowest overnight temperature recorded in May was 20°C (68°F) (May 11, 1986).
Best Places in Sint Maarten in May
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 May →
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What to Wear in Simpson Bay in May
Warm but pleasant conditions in Simpson Bay in May. 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. Wet weather is likely, so pack waterproof gear for multiple rainy days. The water temperature sits at about 27°C (81°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Simpson Bay in May
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 Simpson Bay's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Simpson Bay climate overview or explore weather in Sint Maarten.
