March in St Mary brings high temperatures, with daytime highs of 28°C (82°F) and nights around 22°C (72°F). Quite a bit of rainfall is expected, around 64 mm (2.5 in), so pack an umbrella.
If you're a fan of comfortable temperatures and drier conditions, March is a great time to visit.
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Pick a month to see the average temperature, rainfall and sunshine in St Mary - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in St Mary typically stay consistent throughout March, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 24°C (75°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for St Mary spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 46 years of weather observations in St Mary between 1980 and 2026, these are the recorded extremes.
Find out more about the weather in Jamaica and which places have the best travel conditions in this month. See all of Jamaica 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). Rain is likely on several days, so bring a good rain jacket. 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
See the full St Mary climate overview or explore weather in Jamaica.
Where to go in March - average daytime high across popular destinations.
Montego Bay
29°C (84°F) Treasure Beach29°C (84°F) Falmouth29°C (84°F) Runaway Bay28°C (82°F) Ocho Rios
28°C (82°F) Negril29°C (84°F) Kingston28°C (82°F) Port Antonio27°C (81°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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