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:
2026
2025
2024

The average sea water temperature in September of 2026 was 85.3°F. The highest and lowest sea temperatures during the month were 85.6°F and 84.9°F.

Monthly sea water temperature in Isabella, °F

Which Puerto Rico resorts have warmest sea in September?

Place name September 2026 September 2025
Mayaguez 85.7°F 86.1°F
Ponce 85.7°F 86.3°F
Aguadilla 85.5°F 86.1°F
Isabella 85.3°F 85.9°F
Arecibo 85.3°F 85.8°F
San Juan 85.1°F 85.7°F

Best time for vacation in Isabella

Sunniest months:
January 13 days
December 13 days
February 11 days
Warmest months:
August 86.2 °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 80.4 °F
February 80.5 °F
March 80.8 °F
Rainiest months:
May 10 days
August 8 days
June 8 days
Windiest months:
July 13.5 mph
February 12.9 mph
December 12.8 mph

Isabella on a weather map

Current weather
02:21
Isabella
+77°F
W 11 mph
Feels like: +82°F
Precip.: 27%
Places in Puerto Rico:
Name
°F
Aguadilla
+82°F
Arecibo
+79°F
Isabella
+77°F
Mayaguez
+82°F
Ponce
+79°F
San Juan
+81°F
24 Hours Forecast
Isabella
Local time: 02:21
September 17, thursday
0300
77°F
W
11 mph
0600
77°F
NW
7 mph
0900
82°F
W
7 mph
1200
90°F
W
9 mph
1500
88°F
NW
4 mph
1800
84°F
W
10 mph
2100
81°F
W
13 mph
September 18, friday
0000
81°F
W
7 mph
Units of measurement: °C / °F