Water Temperature of San Juan Bay in San Juan, PR

Current Water Temperature

82.6°F

Measurement Time: Sunday, April 12, 2026, 11:12 PM AST

Today's Tides

 High: April 12, 4:59 AM, 1.2 ft
Low: April 12, 11:22 AM, 0.4 ft
 High: April 12, 4:45 PM, 0.9 ft
Low: April 12, 10:47 PM, 0.1 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

79.6°F
Partly Cloudy
Partly Cloudy
86.2°F
86.2°F
88%
ESE 6 mph
9.8 mph
79.6°F
76.2°F
0 in
52%
6 mi
1015 mbar
0

Five Day Weather Forecast

Partly Cloudy
Sun
H: 83°F
L: 76°F
Heavy rain
Mon
H: 81°F
L: 73°F
Overcast
Tue
H: 79°F
L: 71°F
Partly Cloudy
Wed
H: 82°F
L: 73°F
Moderate rain
Thu
H: 81°F
L: 73°F

Air Quality

AQI: 1 - Good
PM2.5: 5.05 μg/m3
PM10: 5.75 μg/m3
Carbon Monoxide: 108.85 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 50 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:25 AM
Sunset: 6:41 PM
Daylight: 12 hrs 31 mins
Moonrise: 2:44 AM
Moon Transit: 8:29 AM
Moonset: 2:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

7:59 AM - 10:29 AM
12:00 AM - 12:00 AM

Minor Periods

1:49 PM - 3:19 PM
2:14 AM - 3:44 AM

Action Rating: 2 out of 5

Flood Watch issued April 12 at 9:42AM AST until April 15 at 8:00AM AST by NWS San Juan PR

Effective: Sun April 12, 2026, 9:42 AM
Expires: Mon April 13, 2026, 8:15 AM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...All of Puerto Rico and the U.S. Virgin Islands. * WHEN...From Monday morning through Wednesday morning. * IMPACTS...Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Rapid river rises and landslides in areas of steep terrain. * ADDITIONAL DETAILS... - As a trough continues to approach from the northwest, the likelihood of flooding will increase. Showers and thunderstorms will increase in frequency starting Monday, but the heaviest activity is anticipated forMonday night into Tuesday. Based on the latest guidance and the atmospheric set-up, the confidence is increasing though the exact placement remains uncertain. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Sunday, April 12, 2026

Weather Forecast

Partly Cloudy
83.3°F
76.1°F
79.8°F
83%
0 in
0%
0%
11.9 mph
2.9


Air Quality

AQI: 1 - Good
PM2.5: 4.82 μg/m3
PM10: 5.68 μg/m3
Carbon Monoxide: 113.09 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 50.24 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:25 AM
Sunset: 6:41 PM
Daylight: 12 hrs 31 mins
Moonrise: 2:44 AM
Moon Transit: 8:29 AM
Moonset: 2:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

7:59 AM - 10:29 AM
12:00 AM - 12:00 AM

Minor Periods

1:49 PM - 3:19 PM
2:14 AM - 3:44 AM

Action Rating: 2 out of 5

Monday, April 13, 2026

Weather Forecast

Heavy rain
80.6°F
72.7°F
77.3°F
83%
0.96 in
87%
0%
15.4 mph
2.3


Air Quality

AQI: 1 - Good
PM2.5: 4.02 μg/m3
PM10: 4.79 μg/m3
Carbon Monoxide: 111.41 μg/m3
Nitrogen Dioxide: 1.71 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 50.6 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 12:24 AM
Sunset: 6:41 PM
Daylight: 12 hrs 32 mins
Moonrise: 3:22 AM
Moon Transit: 9:15 AM
Moonset: 3:13 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
12:00 AM - 12:00 AM

Minor Periods

2:43 PM - 4:13 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Tuesday, April 14, 2026

Weather Forecast

Overcast
79.3°F
71°F
76°F
83%
0 in
0%
0%
16.3 mph
2.1


Air Quality

AQI: 1 - Good
PM2.5: 2.77 μg/m3
PM10: 3.34 μg/m3
Carbon Monoxide: 118.37 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 52.72 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 12:24 AM
Sunset: 6:42 PM
Daylight: 12 hrs 33 mins
Moonrise: 3:59 AM
Moon Transit: 12:00 AM
Moonset: 4:08 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:25 AM - 2:55 AM

Minor Periods

3:38 PM - 5:08 PM
3:29 AM - 4:59 AM

Action Rating: 2 out of 5

Wednesday, April 15, 2026

Weather Forecast

Partly Cloudy
81.9°F
73°F
77.4°F
82%
0 in
0%
0%
11.2 mph
2.8


Air Quality

AQI: 1 - Good
PM2.5: 4.25 μg/m3
PM10: 4.79 μg/m3
Carbon Monoxide: 117.54 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 60.44 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 12:24 AM
Sunset: 6:42 PM
Daylight: 12 hrs 34 mins
Moonrise: 4:36 AM
Moon Transit: 11:33 AM
Moonset: 5:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
11:03 AM - 1:33 PM

Minor Periods

4:34 PM - 6:04 PM
4:06 AM - 5:36 AM

Action Rating: 2 out of 5

Thursday, April 16, 2026

Weather Forecast

Moderate rain
80.7°F
72.8°F
76.7°F
81%
0.46 in
86%
0%
12.5 mph
2.7


Air Quality

AQI: 1 - Good
PM2.5: 5.63 μg/m3
PM10: 6.83 μg/m3
Carbon Monoxide: 110.52 μg/m3
Nitrogen Dioxide: 2.33 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 60.77 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 12:24 AM
Sunset: 6:42 PM
Daylight: 12 hrs 35 mins
Moonrise: 5:14 AM
Moon Transit: 11:36 AM
Moonset: 6:03 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
11:06 AM - 1:36 PM

Minor Periods

5:33 PM - 7:03 PM
4:44 AM - 6:14 AM

Action Rating: 5 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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