Water temperature

Puerto Rico water temperature

Name: Puerto Rico water temperature
Creator: Tide & Temp
License: https://creativecommons.org/publicdomain/zero/1.0/

Latest NOAA water temperatures across Puerto Rico, updated daily from CO-OPS sensors and NDBC buoys.

Warmest water in Puerto Rico today: 86.7 F at 9752235 - Culebra, PR (buoy CLBP4); coldest: 83.5 F at Mayaguez.
3 NOAA CO-OPS water-temperature sensors and 5 NDBC buoys report for Puerto Rico as of October 18, 2026 (UTC).

NOAA CO-OPS sensors in Puerto Rico

Latest hourly reading; 30-day range; typical = 5-year mean for October at that sensor.

Station	Water now	30-day range (F)	Typical Oct (F)	Read (local)
Culebra	86.7 F 30.4 C	85.6 to 89.8	86.4	05:00 10-18
Mayaguez	83.5 F 28.6 C	82.6 to 86.0	86.9	05:00 10-18
San Juan, La Puntilla, San Juan Bay	86.2 F 30.1 C	85.1 to 87.6	86.2	05:00 10-18

Buoys are assigned to the state of the nearest NOAA tide station. Observation times are UTC.

Buoy	Location	Water	Air	Waves	Observed
41115	Rincon, Puerto Rico	85.3 F 29.6 C		2.6 ft	08:56 UTC
41121	Arecibo, Puerto Rico	85.5 F 29.7 C	77 F	3.3 ft	08:30 UTC
CLBP4	9752235 - Culebra, PR	86.7 F 30.4 C	82 F		08:48 UTC
MGZP4	9759394 - Mayaguez, PR	83.7 F 28.7 C	77 F		08:48 UTC
SJNP4	9755371 - San Juan, La Puntilla, San Juan Bay, PR	86.2 F 30.1 C	79 F		08:48 UTC