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

79.3°F
Partly Cloudy
Partly Cloudy
83.5°F
81.8°F
74%
E 13.6 mph
18.1 mph
78.1°F
69.8°F
0 in
0%
9 mi
1016 mbar
3.9

Five Day Weather Forecast

Cloudy
Sat
H: 80°F
L: 77°F
Heavy rain
Sun
H: 79°F
L: 77°F
Moderate rain
Mon
H: 82°F
L: 77°F
Patchy rain nearby
Tue
H: 78°F
L: 77°F
Patchy rain nearby
Wed
H: 78°F
L: 77°F

Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 5.25 μg/m3
Carbon Monoxide: 111.85 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 12:24 AM
Sunset: 6:32 PM
Daylight: 12 hrs 15 mins
Moonrise: 2:48 PM
Moon Transit: 9:24 PM
Moonset: 3:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

11:58 AM - 2:28 PM
8:54 PM - 11:24 PM

Minor Periods

2:18 PM - 3:48 PM
2:45 AM - 4:15 AM

Action Rating: 2 out of 5

Saturday, March 28, 2026

Weather Forecast

Cloudy
79.9°F
76.8°F
78.2°F
78%
0 in
0%
0%
20.6 mph
2.7


Air Quality

AQI: 1 - Good
PM2.5: 4.29 μg/m3
PM10: 6.28 μg/m3
Carbon Monoxide: 111.45 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 68.96 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 12:24 AM
Sunset: 6:32 PM
Daylight: 12 hrs 15 mins
Moonrise: 2:48 PM
Moon Transit: 9:24 PM
Moonset: 3:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

11:58 AM - 2:28 PM
8:54 PM - 11:24 PM

Minor Periods

2:18 PM - 3:48 PM
2:45 AM - 4:15 AM

Action Rating: 2 out of 5

Sunday, March 29, 2026

Weather Forecast

Heavy rain
79°F
77.2°F
77.8°F
81%
1.02 in
85%
0%
19.7 mph
2.7


Air Quality

AQI: 1 - Good
PM2.5: 3.63 μg/m3
PM10: 5.23 μg/m3
Carbon Monoxide: 112.09 μg/m3
Nitrogen Dioxide: 1.47 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 67.32 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 12:23 AM
Sunset: 6:32 PM
Daylight: 12 hrs 16 mins
Moonrise: 3:44 PM
Moon Transit: 10:11 PM
Moonset: 3:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

12:47 AM - 3:17 PM
12:00 AM - 12:00 AM

Minor Periods

3:14 PM - 4:44 PM
3:27 AM - 4:57 AM

Action Rating: 2 out of 5

Monday, March 30, 2026

Weather Forecast

Moderate rain
81.5°F
76.5°F
78°F
79%
0.29 in
85%
0%
19.2 mph
2.7


Air Quality

AQI: 1 - Good
PM2.5: 5.22 μg/m3
PM10: 7.97 μg/m3
Carbon Monoxide: 113.05 μg/m3
Nitrogen Dioxide: 1.29 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 68.56 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 12:23 AM
Sunset: 6:33 PM
Daylight: 12 hrs 17 mins
Moonrise: 4:38 PM
Moon Transit: 10:56 PM
Moonset: 4:35 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

1:32 PM - 4:02 PM
12:00 AM - 12:00 AM

Minor Periods

4:08 PM - 5:38 PM
4:05 AM - 5:35 AM

Action Rating: 2 out of 5

Tuesday, March 31, 2026

Weather Forecast

Patchy rain nearby
78°F
77.2°F
77.6°F
75%
0.14 in
88%
0%
20.6 mph
2.9


Air Quality

AQI: 1 - Good
PM2.5: 4.93 μg/m3
PM10: 7.65 μg/m3
Carbon Monoxide: 111.59 μg/m3
Nitrogen Dioxide: 1.28 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 75.04 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 12:23 AM
Sunset: 6:33 PM
Daylight: 12 hrs 18 mins
Moonrise: 5:30 PM
Moon Transit: 11:39 PM
Moonset: 5:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

2:16 PM - 4:46 PM
12:00 AM - 12:00 AM

Minor Periods

5:00 PM - 6:30 PM
4:40 AM - 6:10 AM

Action Rating: 4 out of 5

Wednesday, April 1, 2026

Weather Forecast

Patchy rain nearby
78.4°F
76.8°F
77.4°F
76%
0.18 in
89%
0%
19.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 6.06 μg/m3
PM10: 9.49 μg/m3
Carbon Monoxide: 115.98 μg/m3
Nitrogen Dioxide: 1.27 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 75.77 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 12:22 AM
Sunset: 6:33 PM
Daylight: 12 hrs 20 mins
Moonrise: 6:21 PM
Moon Transit: 12:00 AM
Moonset: 5:45 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:58 PM - 5:28 PM

Minor Periods

5:51 PM - 7:21 PM
5:15 AM - 6:45 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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