World Resorts Jamaica Port Antonio Weather

Port Antonio 7 Days Forecast

27.08
thu
Day
84°F
W 6 mph
Precip.
5%
Night
79°F
NW 6 mph
Precip.
15%
28.08
fri
Day
86°F
W 16 mph
Precip.
5%
Night
79°F
NW 11 mph
Precip.
11%
29.08
sat
Day
86°F
W 16 mph
Precip.
9%
Night
79°F
NW 9 mph
Precip.
19%
30.08
sun
Day
84°F
W 9 mph
Precip.
13%
Night
81°F
NW 2 mph
Precip.
18%
31.08
mon
Day
82°F
SW 9 mph
Precip.
73%
Night
79°F
NW 5 mph
Precip.
36%
01.09
tue
Day
84°F
W 10 mph
Precip.
23%
Night
79°F
NW 11 mph
Precip.
29%
02.09
wed
Day
86°F
W 14 mph
Precip.
36%
Night
79°F
NW 9 mph
Precip.
10%

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 85.3°F. The highest and lowest sea temperatures during the month were 86.4°F and 84.0°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 86.4°F. The highest and lowest sea temperatures during the month were 86.9°F and 85.8°F.

Air temperature in Port Antonio, °F

Precipitation total in Port Antonio, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Port Antonio

Sunniest months:
July 11 days
September 10 days
April 9 days
Warmest months:
August 86.2 °F
September 86.1 °F
July 86.0 °F
Warmest sea temp:
September 85.7 °F
October 85.4 °F
August 85.1 °F
Coldest months:
February 80.2 °F
January 80.2 °F
March 80.7 °F
Rainiest months:
October 8 days
November 6 days
December 6 days
Windiest months:
June 11.5 mph
July 10.4 mph
May 10.2 mph

Port Antonio on a weather map

Port Antonio
+81°F
W 3 mph
Feels like: +88°F
Precip.: 80%
Places in Jamaica:
Name
°F
+81°F
+77°F
+81°F
+81°F
+82°F
+81°F
+82°F
24 Hours Forecast
Port Antonio
Local time: 20:57
August 27, thursday
2100
81°F
W
3 mph
August 28, friday
0000
79°F
NW
6 mph
0300
79°F
W
6 mph
0600
79°F
NW
5 mph
0900
84°F
W
6 mph
1200
86°F
W
16 mph
1500
86°F
W
17 mph
1800
82°F
NW
14 mph
Units of measurement: °C / °F