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May in Happy Bay brings high temperatures, with daytime highs of 28°C (82°F) and nights around 26°C (79°F). Quite a bit of rainfall is expected, around 73 mm (2.9 in), so pack an umbrella.
If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Happy Bay.
Pick a month to see the average temperature, rainfall and sunshine in Happy Bay - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Happy 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).
Browse day-by-day weather records for Happy Bay spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 45 years of weather observations (1981-2026), these are the most extreme conditions recorded in Happy Bay.
Find out more about the weather in Saint Martin and which places have the best travel conditions in this month. See all of Saint Martin in May →
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 but pleasant conditions in Happy 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. With water temperatures around 27°C (81°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
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 Happy Bay climate overview or explore weather in Saint Martin.
Where to go in May - average daytime high across popular destinations.
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