World Resorts Puerto Rico Isabella Weather

Isabella Sea Temperature in September

Average sea water temperature in September:
+84.9°F
Minimum sea water temperature in September: 87.3°F
Maximum sea water temperature in September: 83.3°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 85.9°F. The highest and lowest sea temperatures during the month were 86.4°F and 85.5°F.

Monthly sea water temperature in Isabella, °F

Which Puerto Rico resorts have warmest sea in September?

Place name September 2025 September 2024
Ponce 86.3°F 87.0°F
Aguadilla 86.1°F 86.6°F
Mayaguez 86.1°F 86.8°F
Isabella 85.9°F 86.4°F
Arecibo 85.8°F 86.3°F
San Juan 85.7°F 86.4°F

Best time for vacation in Isabella

Sunniest months:
January 13 days
December 12 days
February 11 days
Warmest months:
August 86.3 °F
September 85.7 °F
July 85.6 °F
Warmest sea temp:
October 84.9 °F
September 84.9 °F
August 84.2 °F
Coldest months:
January 80.5 °F
February 80.6 °F
March 80.9 °F
Rainiest months:
May 10 days
June 9 days
August 8 days
Windiest months:
July 13.4 mph
February 13.0 mph
December 12.9 mph

Isabella on a weather map

Current weather
00:59
Isabella
+75°F
W 13 mph
Feels like: +81°F
Precip.: 0%
Places in Puerto Rico:
Name
°F
Aguadilla
+73°F
Arecibo
+75°F
Isabella
+75°F
Mayaguez
+75°F
Ponce
+73°F
San Juan
+77°F
24 Hours Forecast
Isabella
Local time: 00:59
December 22, monday
0300
75°F
W
12 mph
0600
73°F
W
12 mph
0900
77°F
W
14 mph
1200
79°F
SW
17 mph
1500
79°F
SW
17 mph
1800
77°F
SW
16 mph
2100
75°F
SW
14 mph
December 23, tuesday
0000
75°F
SW
12 mph
Units of measurement: °C / °F