Water Temperature of the Atlantic Ocean in San Juan, PR

Current Water Temperature

81.7°F

Measurement Time: Sunday, January 4, 2026, 8:00 PM AST

Temperature Locations

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Local Points of Interest

Balneario del Escambrón; Peñon de San Jorge

Atlantic Ocean

Station Name: San Juan, PR
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet

Nearest Address:
PR-25R
San Juan, PR 00901
San Juan County

GPS Coordinates: 18.474, -66.099

Nearby Water Temperatures

San Juan Bay, San Juan, PR (1.5 mi)
Unnamed Creek, Fort Buchanan, PR (3.9 mi)
Las Casas Lake, Fort Buchanan, PR (4.4 mi)
Unnamed Creek, Fort Buchanan, PR (4.8 mi)
Atlantic Ocean, Vieques, PR (44.2 mi)
Caribbean Sea, Esperanza, PR (48.8 mi)
Bahía de Sardinas, Culebra, PR (53.6 mi)
Bahía de Aguadilla, Aguadilla, PR (69.8 mi)
Caribbean Sea, La Parguera, PR (71.3 mi)
Bahía de Mayagüez, Mayagüez, PR (71.9 mi)
Long Bay, Charlotte Amalie (St. Thomas), VI (77.9 mi)
Caribbean Sea, St. John, VI (89 mi)
Lameshur Bay, Coral Harbour (St. John), VI (90.8 mi)
Limetree Bay, St. Croix, VI (103.5 mi)
Christiansted Harbor, Christiansted (St. Croix), VI (104.8 mi)

Weather for San Juan, Puerto Rico

Current Weather

73.6°F
Partly cloudy
Partly cloudy
77.5°F
79.4°F
89%
ESE 5.4 mph
8.7 mph
75.4°F
71.1°F
0 in
50%
9 mi
1016 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 79°F
L: 74°F
Partly Cloudy
Fri
H: 82°F
L: 76°F
Patchy rain nearby
Sat
H: 78°F
L: 73°F
Patchy rain nearby
Sun
H: 81°F
L: 74°F
Patchy rain nearby
Mon
H: 80°F
L: 74°F

Air Quality

PM2.5: 3.85 μg/m3
PM10: 5.05 μg/m3
Carbon Monoxide: 104.85 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 47 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:31 AM
Sunset: 6:04 PM
Daylight: 11 hrs 5 mins
Moonrise: 11:16 PM
Moon Transit: 4:41 AM
Moonset: 10:52 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

4:11 AM - 6:41 AM
7:49 PM - 10:19 PM

Minor Periods

12:00 AM - 12:00 AM
10:22 AM - 11:52 AM

Action Rating: 3 out of 5

Rip Current Statement issued January 7 at 3:51PM AST until January 8 at 6:00PM AST by NWS San Juan PR

Effective: Wed January 7, 2026, 3:51 PM
Expires: Thu January 8, 2026, 12:00 AM

* WHAT...Life-threatening rip current. * WHERE...Beaches along the northwest to northeast coast of Puerto Rico. * WHEN...Through Thursday afternoon. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water, where it becomes difficult to return to safety.

There is a high risk of rip currents. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as groins, jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs. If you become caught in a rip current, yell for help. Remain calm, do not exhaust yourself and stay afloat while waiting for help. If you have to swim out of a rip current, swim parallel to shore and back toward the beach when possible. Do not attempt to swim directly against a rip current as you will tire quickly.
Thursday, January 8, 2026

Weather Forecast

Patchy rain nearby
79.3°F
74.2°F
77.1°F
83%
0.05 in
86%
0%
11.2 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 4.09 μg/m3
PM10: 5.35 μg/m3
Carbon Monoxide: 105.97 μg/m3
Nitrogen Dioxide: 2.11 μg/m3
Sulphur Dioxide: 1.44 μg/m3
Ozone: 53.8 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:31 AM
Sunset: 6:04 PM
Daylight: 11 hrs 5 mins
Moonrise: 11:16 PM
Moon Transit: 4:41 AM
Moonset: 10:52 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

4:11 AM - 6:41 AM
7:49 PM - 10:19 PM

Minor Periods

12:00 AM - 12:00 AM
10:22 AM - 11:52 AM

Action Rating: 3 out of 5

Friday, January 9, 2026

Weather Forecast

Partly Cloudy
81.5°F
76.1°F
78.4°F
81%
0 in
0%
0%
12.5 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 5.15 μg/m3
PM10: 6.68 μg/m3
Carbon Monoxide: 103.73 μg/m3
Nitrogen Dioxide: 2.11 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 50.32 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:31 AM
Sunset: 6:05 PM
Daylight: 11 hrs 6 mins
Moonrise: 12:16 AM
Moon Transit: 5:23 AM
Moonset: 11:25 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

4:53 AM - 7:23 AM
8:30 PM - 11:00 PM

Minor Periods

10:55 AM - 12:25 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, January 10, 2026

Weather Forecast

Patchy rain nearby
77.9°F
73.4°F
75.6°F
88%
0.04 in
81%
0%
13.9 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 4.53 μg/m3
PM10: 6.58 μg/m3
Carbon Monoxide: 103.75 μg/m3
Nitrogen Dioxide: 1.73 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 47.92 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:32 AM
Sunset: 6:05 PM
Daylight: 11 hrs 6 mins
Moonrise: 12:06 AM
Moon Transit: 6:04 AM
Moonset: 11:59 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

5:34 AM - 8:04 AM
9:11 PM - 11:41 PM

Minor Periods

11:29 AM - 12:59 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, January 11, 2026

Weather Forecast

Patchy rain nearby
81.1°F
74.1°F
76.7°F
76%
0.07 in
87%
0%
13.9 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 3.86 μg/m3
PM10: 5.79 μg/m3
Carbon Monoxide: 101.71 μg/m3
Nitrogen Dioxide: 1.71 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 48.92 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:32 AM
Sunset: 6:06 PM
Daylight: 11 hrs 7 mins
Moonrise: 12:56 AM
Moon Transit: 6:46 AM
Moonset: 12:33 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:16 AM - 8:46 AM
12:00 AM - 12:00 AM

Minor Periods

12:03 AM - 1:33 PM
12:26 AM - 1:56 AM

Action Rating: 2 out of 5

Monday, January 12, 2026

Weather Forecast

Patchy rain nearby
79.6°F
73.8°F
75.2°F
79%
0.09 in
89%
0%
12.1 mph
0.1


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:32 AM
Sunset: 6:06 PM
Daylight: 11 hrs 7 mins
Moonrise: 1:46 AM
Moon Transit: 7:29 AM
Moonset: 1:10 PM
Moon Phase: Last Quarter
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

6:59 AM - 9:29 AM
12:00 AM - 12:00 AM

Minor Periods

12:40 AM - 2:10 PM
1:16 AM - 2:46 AM

Action Rating: 3 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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