Water Temperature of San Juan Bay in San Juan, PR

Current Water Temperature

84.0°F

Measurement Time: Tuesday, July 7, 2026, 7:42 PM AST

Today's Tides

 High: July 7, 1:23 AM, 1.3 ft
Low: July 7, 8:05 AM, 0.1 ft
 High: July 7, 2:51 PM, 1.3 ft
Low: July 7, 8:42 PM, 0.6 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

81.3°F
Patchy rain nearby
Patchy rain nearby
86.4°F
87°F
76%
E 17.2 mph
24 mph
81.3°F
73.1°F
0 in
81%
6 mi
1018 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 86°F
L: 79°F
Patchy rain nearby
Wed
H: 85°F
L: 79°F
Patchy rain nearby
Thu
H: 87°F
L: 79°F
Patchy rain nearby
Fri
H: 86°F
L: 78°F
Patchy rain nearby
Sat
H: 86°F
L: 79°F

Air Quality

AQI: 2 - Moderate
PM2.5: 6 μg/m3
PM10: 13.4 μg/m3
Carbon Monoxide: 89 μg/m3
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 42 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 12:29 AM
Sunset: 7:05 PM
Daylight: 13 hrs 11 mins
Moonrise: 12:37 AM
Moon Transit: 12:00 AM
Moonset: 12:19 AM
Moon Phase: Last Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:06 PM - 11:36 PM

Minor Periods

11:49 AM - 1:19 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Small Craft Advisory issued July 7 at 3:57PM AST until July 9 at 12:00AM AST by NWS San Juan PR

Effective: Tue July 7, 2026, 3:57 PM
Expires: Wed July 8, 2026, 12:00 AM

* WHAT...East winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 6 ft expected. * WHERE...Coastal Waters of Northern Puerto Rico out 10 NM and Coastal Waters of Southern Puerto Rico out 10 NM. * WHEN...From noon Wednesday to midnight AST Wednesday night. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Tuesday, July 7, 2026

Weather Forecast

Patchy rain nearby
86.2°F
79°F
82.1°F
74%
0.03 in
48%
0%
19.9 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 9.83 μg/m3
PM10: 23.58 μg/m3
Carbon Monoxide: 89.29 μg/m3
Nitrogen Dioxide: 0.4 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 44.29 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 12:29 AM
Sunset: 7:05 PM
Daylight: 13 hrs 11 mins
Moonrise: 12:37 AM
Moon Transit: 12:00 AM
Moonset: 12:19 AM
Moon Phase: Last Quarter
Moon Illumination: 37.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:06 PM - 11:36 PM

Minor Periods

11:49 AM - 1:19 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 8, 2026

Weather Forecast

Patchy rain nearby
85.4°F
78.8°F
81.8°F
75%
0.06 in
59%
0%
19.9 mph
10.3


Air Quality

AQI: 1 - Good
PM2.5: 9.72 μg/m3
PM10: 23.01 μg/m3
Carbon Monoxide: 93.88 μg/m3
Nitrogen Dioxide: 0.47 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 42.33 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 12:29 AM
Sunset: 7:05 PM
Daylight: 13 hrs 11 mins
Moonrise: 12:15 AM
Moon Transit: 6:42 AM
Moonset: 1:15 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%

Best Times for Fishing or Hunting

Major Periods

6:12 AM - 8:42 AM
12:00 AM - 12:00 AM

Minor Periods

12:45 AM - 2:15 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, July 9, 2026

Weather Forecast

Patchy rain nearby
87.4°F
79°F
82.5°F
73%
0.02 in
43%
0%
19.5 mph
11.1


Air Quality

AQI: 1 - Good
PM2.5: 12.01 μg/m3
PM10: 30.33 μg/m3
Carbon Monoxide: 89.38 μg/m3
Nitrogen Dioxide: 0.39 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 45.13 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 12:29 AM
Sunset: 7:05 PM
Daylight: 13 hrs 11 mins
Moonrise: 12:56 AM
Moon Transit: 7:34 AM
Moonset: 2:17 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
12:00 AM - 12:00 AM

Minor Periods

1:47 PM - 3:17 PM
12:26 AM - 1:56 AM

Action Rating: 2 out of 5

Friday, July 10, 2026

Weather Forecast

Patchy rain nearby
86.3°F
78.3°F
81.9°F
70%
0.01 in
24%
0%
20.4 mph
10.6


Air Quality

AQI: 2 - Moderate
PM2.5: 20.16 μg/m3
PM10: 49.83 μg/m3
Carbon Monoxide: 88.5 μg/m3
Nitrogen Dioxide: 0.38 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 39.79 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 12:29 AM
Sunset: 7:05 PM
Daylight: 13 hrs 10 mins
Moonrise: 1:43 AM
Moon Transit: 8:30 AM
Moonset: 3:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

8:00 AM - 10:30 AM
12:00 AM - 12:00 AM

Minor Periods

2:52 PM - 4:22 PM
1:13 AM - 2:43 AM

Action Rating: 2 out of 5

Saturday, July 11, 2026

Weather Forecast

Patchy rain nearby
86.1°F
78.7°F
82°F
69%
0.02 in
36%
0%
18.6 mph
10.8


Air Quality

AQI: 2 - Moderate
PM2.5: 24.7 μg/m3
PM10: 64.78 μg/m3
Carbon Monoxide: 89.22 μg/m3
Nitrogen Dioxide: 0.46 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 36.11 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 12:30 AM
Sunset: 7:05 PM
Daylight: 13 hrs 10 mins
Moonrise: 2:39 AM
Moon Transit: 9:33 AM
Moonset: 4:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:03 AM - 11:33 AM

Minor Periods

4:01 PM - 5:31 PM
2:09 AM - 3:39 AM

Action Rating: 2 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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