Water Temperature of the Caribbean Sea in St. John, VI

Current Water Temperature

79.9°F

Measurement Time: Thursday, March 19, 2026, 7:00 AM AST

Temperature Locations

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Caribbean Sea

Station Name: South of St. John, VI
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet

Nearest Address:
St. John, VI 00830

GPS Coordinates: 18.249, -64.763

Nearby Water Temperatures

Lameshur Bay, Coral Harbour (St. John), VI (5.4 mi)
Long Bay, Charlotte Amalie (St. Thomas), VI (11.9 mi)
Christiansted Harbor, Christiansted (St. Croix), VI (34.9 mi)
Bahía de Sardinas, Culebra, PR (35.6 mi)
Limetree Bay, St. Croix, VI (38.3 mi)
Atlantic Ocean, Vieques, PR (46 mi)
Caribbean Sea, Esperanza, PR (47.7 mi)
Atlantic Ocean, San Juan, PR (89 mi)
Unnamed Creek, Fort Buchanan, PR (89.5 mi)
Unnamed Creek, Fort Buchanan, PR (89.5 mi)
San Juan Bay, San Juan, PR (89.9 mi)
Las Casas Lake, Fort Buchanan, PR (90 mi)
Caribbean Sea, La Parguera, PR (151.2 mi)
Bahía de Mayagüez, Mayagüez, PR (157.5 mi)
Bahía de Aguadilla, Aguadilla, PR (158.1 mi)

Weather for St. John, US Virgin Islands

Current Weather

84.4°F
Partly cloudy
Partly cloudy
93.4°F
83.4°F
70%
E 16.8 mph
22.7 mph
79°F
70.8°F
0 in
75%
9 mi
1013 mbar
0.2

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 86°F
L: 77°F
Patchy rain nearby
Fri
H: 80°F
L: 77°F
Cloudy
Sat
H: 83°F
L: 78°F
Patchy rain nearby
Sun
H: 82°F
L: 77°F
Patchy rain nearby
Mon
H: 79°F
L: 78°F

Air Quality

AQI: 1 - Good
PM2.5: 5.35 μg/m3
PM10: 7.75 μg/m3
Carbon Monoxide: 108.85 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 12:18 AM
Sunset: 6:36 PM
Daylight: 12 hrs 35 mins
Moonrise: 5:09 AM
Moon Transit: 11:30 AM
Moonset: 5:57 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:00 AM - 1:30 PM

Minor Periods

5:27 PM - 6:57 PM
4:39 AM - 6:09 AM

Action Rating: 5 out of 5

Thursday, April 16, 2026

Weather Forecast

Patchy rain nearby
85.5°F
77.2°F
79.6°F
85%
0.11 in
85%
0%
20.6 mph
2.9


Air Quality

AQI: 1 - Good
PM2.5: 5.89 μg/m3
PM10: 8.56 μg/m3
Carbon Monoxide: 110.81 μg/m3
Nitrogen Dioxide: 1.42 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 64.68 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 12:18 AM
Sunset: 6:36 PM
Daylight: 12 hrs 35 mins
Moonrise: 5:09 AM
Moon Transit: 11:30 AM
Moonset: 5:57 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:00 AM - 1:30 PM

Minor Periods

5:27 PM - 6:57 PM
4:39 AM - 6:09 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Patchy rain nearby
80.1°F
77.4°F
78.7°F
82%
0.15 in
66%
0%
20.4 mph
2.5


Air Quality

AQI: 1 - Good
PM2.5: 5.76 μg/m3
PM10: 8.63 μg/m3
Carbon Monoxide: 108.21 μg/m3
Nitrogen Dioxide: 1.39 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 65.6 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 12:18 AM
Sunset: 6:37 PM
Daylight: 12 hrs 36 mins
Moonrise: 5:51 AM
Moon Transit: 12:22 AM
Moonset: 7:00 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
11:52 AM - 2:22 PM

Minor Periods

6:30 PM - 8:00 PM
5:21 AM - 6:51 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Cloudy
82.9°F
78.2°F
79.1°F
79%
0 in
0%
0%
20.4 mph
2.9


Air Quality

AQI: 1 - Good
PM2.5: 7.39 μg/m3
PM10: 11.33 μg/m3
Carbon Monoxide: 112.81 μg/m3
Nitrogen Dioxide: 1.33 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 76.32 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 12:18 AM
Sunset: 6:37 PM
Daylight: 12 hrs 37 mins
Moonrise: 6:37 AM
Moon Transit: 1:18 PM
Moonset: 8:05 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

3:49 AM - 6:19 AM
12:48 AM - 3:18 PM

Minor Periods

7:35 PM - 9:05 PM
6:07 AM - 7:37 AM

Action Rating: 5 out of 5

Sunday, April 19, 2026

Weather Forecast

Patchy rain nearby
82.4°F
77.4°F
78.5°F
76%
0.04 in
78%
0%
19.5 mph
2.7


Air Quality

AQI: 1 - Good
PM2.5: 6.25 μg/m3
PM10: 9.47 μg/m3
Carbon Monoxide: 115.67 μg/m3
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 76.4 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 12:18 AM
Sunset: 6:37 PM
Daylight: 12 hrs 38 mins
Moonrise: 7:28 AM
Moon Transit: 2:19 PM
Moonset: 9:14 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

4:49 AM - 7:19 AM
1:49 PM - 4:19 PM

Minor Periods

8:44 PM - 10:14 PM
6:58 AM - 8:28 AM

Action Rating: 2 out of 5

Monday, April 20, 2026

Weather Forecast

Patchy rain nearby
78.9°F
78.1°F
78.6°F
75%
0.1 in
89%
0%
19.9 mph
2.9


Air Quality

AQI: 1 - Good
PM2.5: 8.6 μg/m3
PM10: 13.25 μg/m3
Carbon Monoxide: 114.93 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 83.85 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 12:17 AM
Sunset: 6:38 PM
Daylight: 12 hrs 39 mins
Moonrise: 8:27 AM
Moon Transit: 3:23 PM
Moonset: 10:22 PM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

5:52 AM - 8:22 AM
2:53 PM - 5:23 PM

Minor Periods

9:52 PM - 11:22 PM
7:57 AM - 9:27 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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