Water Temperature of San Juan Bay in San Juan, PR

Current Water Temperature

82.0°F

Measurement Time: Tuesday, May 26, 2026, 8:12 PM AST

Today's Tides

 High: May 26, 4:51 AM, 1.0 ft
Low: May 26, 11:10 AM, 0.0 ft
 High: May 26, 6:10 PM, 1.4 ft

Temperature Locations

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Local Points of Interest

Bahia de San Juan; Old San Juan; Port of San Juan; Caribbean Sea

San Juan Bay

Station Name: San Juan, La Puntilla, San Juan Bay
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 3 feet

Sensor Depth: -4 feet

Nearest Address:
La Puntilla
San Juan, PR 00901
San Juan County

GPS Coordinates: 18.459167, -66.116389

Nearby Water Temperatures

Atlantic Ocean, San Juan, PR (1.5 mi)
Unnamed Creek, Fort Buchanan, PR (2.7 mi)
Las Casas Lake, Fort Buchanan, PR (3.1 mi)
Unnamed Creek, Fort Buchanan, PR (3.6 mi)
Atlantic Ocean, Vieques, PR (44.9 mi)
Caribbean Sea, Esperanza, PR (49.3 mi)
Bahía de Sardinas, Culebra, PR (54.5 mi)
Bahía de Aguadilla, Aguadilla, PR (68.7 mi)
Caribbean Sea, La Parguera, PR (69.8 mi)
Bahía de Mayagüez, Mayagüez, PR (70.6 mi)
Long Bay, Charlotte Amalie (St. Thomas), VI (78.9 mi)
Caribbean Sea, St. John, VI (89.9 mi)
Lameshur Bay, Coral Harbour (St. John), VI (91.8 mi)
Limetree Bay, St. Croix, VI (103.9 mi)
Christiansted Harbor, Christiansted (St. Croix), VI (105.3 mi)

Weather for San Juan, Puerto Rico

Current Weather

77.5°F
Patchy rain nearby
Patchy rain nearby
81.8°F
81.8°F
83%
E 14.1 mph
21.2 mph
77.5°F
71.7°F
0 in
85%
6 mi
1018 mbar
0

Five Day Weather Forecast

Moderate rain
Tue
H: 82°F
L: 76°F
Patchy rain nearby
Wed
H: 83°F
L: 76°F
Patchy rain nearby
Thu
H: 82°F
L: 76°F
Patchy rain nearby
Fri
H: 86°F
L: 76°F
Patchy rain nearby
Sat
H: 87°F
L: 76°F

Air Quality

AQI: 1 - Good
PM2.5: 5.75 μg/m3
PM10: 9.75 μg/m3
Carbon Monoxide: 112.85 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 12:21 AM
Sunset: 6:55 PM
Daylight: 13 hrs 7 mins
Moonrise: 3:09 PM
Moon Transit: 9:06 PM
Moonset: 2:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

11:32 AM - 2:02 PM
8:36 PM - 11:06 PM

Minor Periods

2:39 PM - 4:09 PM
1:57 AM - 3:27 AM

Action Rating: 2 out of 5

Rip Current Statement issued May 26 at 9:21AM AST until May 27 at 6:00AM AST by NWS San Juan PR

Effective: Tue May 26, 2026, 9:21 AM
Expires: Tue May 26, 2026, 6:00 PM

* WHAT...Life-threatening rip currents. * WHERE...Exposed beaches of northern, eastern, and southeastern Puerto Rico, Vieques, Culebra, and all the U.S. Virgin Islands. * WHEN...Through late tonight. * 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.


Flood Advisory issued May 26 at 1:20PM AST until May 26 at 4:30PM AST by NWS San Juan PR

Effective: Tue May 26, 2026, 1:20 PM
Expires: Tue May 26, 2026, 4:30 PM

* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Arecibo, Barceloneta, Florida and Manati. * WHEN...Until 430 PM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 119 PM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 2 inches are expected over the area. This additional rain will result in minor flooding.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Tuesday, May 26, 2026

Weather Forecast

Moderate rain
81.7°F
76°F
78.3°F
80%
0.29 in
99%
0%
18.3 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 7.93 μg/m3
PM10: 12.84 μg/m3
Carbon Monoxide: 107.89 μg/m3
Nitrogen Dioxide: 1.31 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 57.48 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 12:21 AM
Sunset: 6:55 PM
Daylight: 13 hrs 7 mins
Moonrise: 3:09 PM
Moon Transit: 9:06 PM
Moonset: 2:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

11:32 AM - 2:02 PM
8:36 PM - 11:06 PM

Minor Periods

2:39 PM - 4:09 PM
1:57 AM - 3:27 AM

Action Rating: 2 out of 5

Wednesday, May 27, 2026

Weather Forecast

Patchy rain nearby
83.1°F
75.6°F
78.9°F
79%
0.13 in
91%
0%
17.9 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 8.5 μg/m3
PM10: 16.46 μg/m3
Carbon Monoxide: 111.57 μg/m3
Nitrogen Dioxide: 1.34 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 63.2 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 12:21 AM
Sunset: 6:56 PM
Daylight: 13 hrs 8 mins
Moonrise: 3:59 PM
Moon Transit: 9:49 PM
Moonset: 3:01 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

12:14 AM - 2:44 PM
9:19 PM - 11:49 PM

Minor Periods

3:29 PM - 4:59 PM
2:31 AM - 4:01 AM

Action Rating: 2 out of 5

Thursday, May 28, 2026

Weather Forecast

Patchy rain nearby
82.2°F
76.2°F
79°F
80%
0.19 in
88%
0%
14.1 mph
10.6


Air Quality

AQI: 1 - Good
PM2.5: 10.98 μg/m3
PM10: 23.05 μg/m3
Carbon Monoxide: 109.29 μg/m3
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 64.04 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 12:21 AM
Sunset: 6:56 PM
Daylight: 13 hrs 8 mins
Moonrise: 4:51 PM
Moon Transit: 10:33 PM
Moonset: 3:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

12:58 AM - 3:28 PM
12:00 AM - 12:00 AM

Minor Periods

4:21 PM - 5:51 PM
3:06 AM - 4:36 AM

Action Rating: 2 out of 5

Friday, May 29, 2026

Weather Forecast

Patchy rain nearby
86.3°F
75.6°F
80.1°F
78%
0.01 in
89%
0%
15.9 mph
11.6


Air Quality

AQI: 1 - Good
PM2.5: 11.61 μg/m3
PM10: 26.2 μg/m3
Carbon Monoxide: 108.21 μg/m3
Nitrogen Dioxide: 1.36 μg/m3
Sulphur Dioxide: 2.39 μg/m3
Ozone: 53.88 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 12:21 AM
Sunset: 6:56 PM
Daylight: 13 hrs 9 mins
Moonrise: 5:43 PM
Moon Transit: 11:20 PM
Moonset: 4:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

1:44 PM - 4:14 PM
12:00 AM - 12:00 AM

Minor Periods

5:13 PM - 6:43 PM
3:44 AM - 5:14 AM

Action Rating: 3 out of 5

Saturday, May 30, 2026

Weather Forecast

Patchy rain nearby
86.7°F
75.5°F
80.6°F
76%
0.01 in
89%
0%
15.9 mph
12


Air Quality

AQI: 1 - Good
PM2.5: 11.56 μg/m3
PM10: 23.86 μg/m3
Carbon Monoxide: 106.13 μg/m3
Nitrogen Dioxide: 1.66 μg/m3
Sulphur Dioxide: 2.66 μg/m3
Ozone: 43.08 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 12:22 AM
Sunset: 6:57 PM
Daylight: 13 hrs 9 mins
Moonrise: 6:37 PM
Moon Transit: 12:00 AM
Moonset: 4:56 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:32 PM - 5:02 PM

Minor Periods

6:07 PM - 7:37 PM
4:26 AM - 5:56 AM

Action Rating: 4 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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