Measurements:
°C
°F
Port Antonio
82°F
W 8 mph
Feels like: 88°F
Precip: 0%
World Resorts Jamaica Port Antonio Weather

Port Antonio Sea Water Temperature

Current Sea Water Temperature:
+84.8°F
Maximum Sea Water Temperature in February: 85.6°F
Minimum Sea Water Temperature in February: 82.6°F
Average water temperature in February: 84.1°F

Sea Water Temperature for the Last 10 Days:

February 04 84.8°F January 30 85.4°F
February 03 85.0°F January 29 85.6°F
February 02 85.6°F January 28 85.6°F
February 01 85.4°F January 27 85.8°F
January 31 85.4°F January 26 85.4°F

When is the Warmest Sea for Port Antonio?

According to our data for the last three years for Port Antonio the highest average sea water temperature was in September, October and August.

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Port Antonio was 90.4°F. The maximum and minimum values were 89.8°F and 91.0°F respectively.

Sea Water Temperature in October

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Port Antonio was 90.3°F. The maximum and minimum values were 89.0°F and 90.8°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Port Antonio was 89.7°F. The maximum and minimum values were 89.0°F and 90.4°F respectively.

Best Time to Visit Port Antonio
The most sunny months:
July 11 days
May 10 days
September 10 days
The most warm months:
August 90.2 °F
September 90.1 °F
July 90.1 °F
Warmest sea temperature:
September 89.6 °F
October 89.3 °F
August 89.0 °F
The most cold months:
January 83.5 °F
February 83.8 °F
March 84.2 °F
The most rainy months:
October 8 days
August 7 days
November 6 days
The most windy months:
June 11 mph
July 10 mph
May 10 mph

Port Antonio on the Weather Map

Jamaica Resorts:
NAME
Kingston +86
Montego Bay +82
Negril +84
Ocho Rios +80
Port Antonio +82
Runaway Bay +80
Westmoreland +84
24 Hours Weather Forecast
Port Antonio
Local time: 13:39
04 feb, wednesday
1500 82°F
W
8 mph
1800 80°F
W
7 mph
2100 80°F
W
7 mph
05 feb, thursday
0000 80°F
W
7 mph
0300 80°F
W
7 mph
0600 80°F
W
7 mph
0900 80°F
W
7 mph
1200 82°F
NW
8 mph