Current Sea Water Temperature:
+89.8°F
| Maximum Sea Water Temperature in September: | 92.2°F |
| Minimum Sea Water Temperature in September: | 86.8°F |
| Average water temperature in September: | 89.6°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| September 08 | 89.8°F | September 03 | 88.4°F |
| September 07 | 89.4°F | September 02 | 89.0°F |
| September 06 | 89.0°F | September 01 | 88.6°F |
| September 05 | 89.0°F | August 31 | 88.6°F |
| September 04 | 88.6°F | August 30 | 88.6°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
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
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
The average sea surface temperature in August 2026 for Port Antonio was 89.1°F. The maximum and minimum values were 87.8°F and 90.4°F respectively.
Jamaica Resorts:
NAME
F°
| Kingston |  |
+96 |
| Montego Bay |  |
+88 |
| Negril | |
+88 |
| Ocho Rios |  |
+88 |
| Port Antonio | |
+90 |
| Runaway Bay | |
+88 |
| Westmoreland | |
+88 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Port Antonio
Local time: 15:25
08 sep, tuesday
| 1800 |  |
86°F | NW 12 mph |
| 2100 | |
84°F | NW 11 mph |
09 sep, wednesday
| 0000 | |
84°F | NW 9 mph |
| 0300 |  |
84°F | NW 11 mph |
| 0600 |  |
84°F | NW 9 mph |
| 0900 | |
88°F | W 10 mph |
| 1200 | |
90°F | W 15 mph |
| 1500 |  |
90°F | W 16 mph |