Port Antonio Weather in August
August in Port Antonio averages 30°C (86°F) during the day and 25°C (77°F) at night. Quite a bit of rainfall is typical this month, with around 119 mm (4.7 in) on average. An umbrella is a good idea.
Rainfall in Port Antonio in August
On average, there are about 13 days with rain during this month, averaging 119 mm (4.7 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Port Antonio in August
Expect highs of 30°C (86°F) in Port Antonio in August, with nights dropping to around 25°C (77°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.
Sunshine in Port Antonio in August
The month enjoys around 263 hours of sunshine, creating mostly sunny days with good weather conditions.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March and April typically offer the best weather for Port Antonio.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Jamaica, check out our Port Antonio's climate page.
Port Antonio Temperature in August
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
42%
Precipitation
119 mm (4.7 in)
Rainy days
13 days
Humidity
76% *
Sunshine
263 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Port Antonio typically stay consistent throughout August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 27°C (81°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Port Antonio in August
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.
Port Antonio historical weather extremes in August
Our historical data for Port Antonio spans 2004 to 2025, revealing these weather extremes.
- Port Antonio recorded its highest August temperature of 37°C (99°F) on August 5, 2004.
- On August 11, 2007, Port Antonio saw its coldest August day with temperatures maxing out at 27°C (81°F).
- Nighttime temperatures dropped to 22°C (72°F) on August 13, 2013, marking the coldest August night on record.
Best Places in Jamaica in August
Find out more about the weather in Jamaica and which places have the best travel conditions in this month. See all of Jamaica in August →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Port Antonio in August
Warm but pleasant conditions in Port Antonio in August. 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Port Antonio in August
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 Jamaica, check out our Port Antonio's climate page.
Temperature Rainfall Sunshine Humidity
See the full Port Antonio climate overview or explore weather in Jamaica.
