May in Port Antonio typically sees daytime highs of 28°C (82°F) and nighttime lows of 24°C (75°F). Rainfall is also possible this month, so it's worth packing an umbrella.
If your ideal day consists of dry skies and pleasant temperatures, January, February, March and April typically offer the best circumstances for Port Antonio.
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Pick a month to see the average temperature, rainfall and sunshine in Port Antonio - and find the best time to visit.
49-year average (1976-2025)
Based on our historical records, temperatures in Port Antonio typically stay consistent throughout May, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 26°C (79°F).
49-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 Port Antonio spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Port Antonio from 1997 through 2026.
Find out more about the weather in Jamaica and which places have the best travel conditions in this month. See all of Jamaica 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 temperatures in May 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. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Port Antonio climate overview or explore weather in Jamaica.
Where to go in May - average daytime high across popular destinations.
Montego Bay
31°C (88°F) Falmouth30°C (86°F) Runaway Bay30°C (86°F) Treasure Beach
30°C (86°F) Ocho Rios
30°C (86°F) Kingston29°C (84°F) Negril30°C (86°F) Port Antonio28°C (82°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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