Measurements:
°C
°F
Isabella
76°F
W 11 mph
Feels like: 82°F
Precip: 0%
World Resorts Puerto Rico Isabella Weather

Isabella Sea Water Temperature

Current Sea Water Temperature:
+85.0°F
Maximum Sea Water Temperature in January: 86.0°F
Minimum Sea Water Temperature in January: 81.8°F
Average water temperature in January: 84.0°F

Sea Water Temperature for the Last 10 Days:

January 09 85.0°F January 04 85.0°F
January 08 85.0°F January 03 84.8°F
January 07 85.0°F January 02 84.8°F
January 06 85.0°F January 01 85.0°F
January 05 85.2°F December 31 85.2°F

When is the Warmest Sea for Isabella?

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

Average Water Temperature by Month, °F

Sea Water Temperature in October

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Isabella was 89.4°F. The maximum and minimum values were 88.4°F and 90.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Isabella was 89.9°F. The maximum and minimum values were 89.4°F and 90.4°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Isabella was 88.5°F. The maximum and minimum values were 87.8°F and 89.2°F respectively.

Best Time to Visit Isabella
The most sunny months:
January 13 days
December 13 days
February 11 days
The most warm months:
August 90.3 °F
September 89.7 °F
July 89.6 °F
Warmest sea temperature:
October 88.8 °F
September 88.8 °F
August 88.0 °F
The most cold months:
January 83.9 °F
February 84.0 °F
March 84.4 °F
The most rainy months:
May 10 days
June 9 days
August 8 days
The most windy months:
July 13 mph
February 12 mph
December 12 mph

Isabella on the Weather Map

Puerto Rico Resorts:
NAME
Aguadilla +74
Arecibo +74
Isabella +76
Mayaguez +72
Ponce +74
San Juan +80
24 Hours Weather Forecast
Isabella
Local time: 22:36
10 jan, saturday
0000 76°F
W
11 mph
0300 76°F
W
9 mph
0600 76°F
W
11 mph
0900 80°F
W
15 mph
1200 82°F
SW
17 mph
1500 82°F
SW
19 mph
1800 78°F
W
16 mph
2100 78°F
W
14 mph