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

Current Water Temperature

80.2°F

Measurement Time: Tuesday, February 17, 2026, 12:00 AM AST

Temperature Locations

View Nearby Locations     View All US Virgin Islands Locations     View Locations Near Me

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

78.8°F
Partly cloudy
Partly cloudy
83.1°F
81.8°F
74%
E 23.3 mph
30.6 mph
77.8°F
70.6°F
0 in
50%
9 mi
1017 mbar
3.5

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 83°F
L: 77°F
Patchy rain nearby
Thu
H: 80°F
L: 77°F
Moderate rain
Fri
H: 79°F
L: 78°F
Patchy rain nearby
Sat
H: 79°F
L: 77°F
Patchy rain nearby
Sun
H: 79°F
L: 78°F

Air Quality

AQI: 1 - Good
PM2.5: 9.15 μg/m3
PM10: 14.45 μg/m3
Carbon Monoxide: 113.85 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 86 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:30 AM
Sunset: 6:26 PM
Daylight: 11 hrs 50 mins
Moonrise: 7:38 PM
Moon Transit: 1:01 AM
Moonset: 7:12 AM
Moon Phase: Full
Moon Illumination: 98.2%

Best Times for Fishing or Hunting

Major Periods

12:31 AM - 3:01 AM
4:21 PM - 6:51 PM

Minor Periods

7:08 PM - 8:38 PM
6:42 AM - 8:12 AM

Action Rating: 5 out of 5

Rip Current Statement issued March 3 at 4:22PM AST until March 6 at 6:00AM AST by NWS San Juan PR

Effective: Tue March 3, 2026, 4:22 PM
Expires: Wed March 4, 2026, 6:00 AM

* WHAT...High Rip Current Risk, life-threatening rip current. * WHERE...North- and east-facing beaches of northern Puerto Rico and Sr Croix. * WHEN...From Wednesday morning through late Thursday night. * 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.


Rip Current Statement issued March 3 at 9:21PM AST until March 6 at 6:00AM AST by NWS San Juan PR

Effective: Tue March 3, 2026, 9:21 PM
Expires: Wed March 4, 2026, 5:30 AM

* WHAT...High Rip Current Risk, life-threatening rip currents. * WHERE...North and east-facing beaches of Puerto Rico and St. Croix. * WHEN...From Wednesday morning through late Thursday night. * 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.


Rip Current Statement issued March 4 at 3:53AM AST until March 7 at 6:00AM AST by NWS San Juan PR

Effective: Wed March 4, 2026, 3:53 AM
Expires: Wed March 4, 2026, 12:00 PM

* WHAT...High Rip Current Risk, life-threatening rip currents. * WHERE...North and east-facing beaches of Puerto Rico and St. Croix. * WHEN...Through late Friday night. * 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.


Wednesday, March 4, 2026

Weather Forecast

Patchy rain nearby
82.6°F
77°F
78.3°F
80%
0.04 in
71%
0%
23.7 mph
2.5


Air Quality

AQI: 1 - Good
PM2.5: 6.89 μg/m3
PM10: 10.71 μg/m3
Carbon Monoxide: 111.01 μg/m3
Nitrogen Dioxide: 1.27 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 77.04 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:30 AM
Sunset: 6:26 PM
Daylight: 11 hrs 50 mins
Moonrise: 7:38 PM
Moon Transit: 1:01 AM
Moonset: 7:12 AM
Moon Phase: Full
Moon Illumination: 98.2%

Best Times for Fishing or Hunting

Major Periods

12:31 AM - 3:01 AM
4:21 PM - 6:51 PM

Minor Periods

7:08 PM - 8:38 PM
6:42 AM - 8:12 AM

Action Rating: 5 out of 5

Thursday, March 5, 2026

Weather Forecast

Patchy rain nearby
80.2°F
76.8°F
78.3°F
81%
0 in
68%
0%
24.2 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 8.49 μg/m3
PM10: 13.19 μg/m3
Carbon Monoxide: 108.81 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 71.76 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:30 AM
Sunset: 6:27 PM
Daylight: 11 hrs 51 mins
Moonrise: 8:30 PM
Moon Transit: 1:44 AM
Moonset: 7:46 AM
Moon Phase: Full
Moon Illumination: 94.0%

Best Times for Fishing or Hunting

Major Periods

1:14 AM - 3:44 AM
5:03 PM - 7:33 PM

Minor Periods

8:00 PM - 9:30 PM
7:16 AM - 8:46 AM

Action Rating: 3 out of 5

Friday, March 6, 2026

Weather Forecast

Moderate rain
78.6°F
77.5°F
78.2°F
80%
0.23 in
71%
0%
23.9 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.26 μg/m3
PM10: 9.75 μg/m3
Carbon Monoxide: 102.21 μg/m3
Nitrogen Dioxide: 1.24 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 62.32 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:30 AM
Sunset: 6:27 PM
Daylight: 11 hrs 52 mins
Moonrise: 9:21 PM
Moon Transit: 2:27 AM
Moonset: 8:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.6%

Best Times for Fishing or Hunting

Major Periods

1:57 AM - 4:27 AM
5:46 PM - 8:16 PM

Minor Periods

8:51 PM - 10:21 PM
7:51 AM - 9:21 AM

Action Rating: 2 out of 5

Saturday, March 7, 2026

Weather Forecast

Patchy rain nearby
78.5°F
77.4°F
78.1°F
76%
0.11 in
89%
0%
25.5 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 7.98 μg/m3
PM10: 12.07 μg/m3
Carbon Monoxide: 113.18 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 72.88 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:30 AM
Sunset: 6:27 PM
Daylight: 11 hrs 53 mins
Moonrise: 10:13 PM
Moon Transit: 3:10 AM
Moonset: 8:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.2%

Best Times for Fishing or Hunting

Major Periods

2:40 AM - 5:10 AM
6:31 PM - 9:01 PM

Minor Periods

9:43 PM - 11:13 PM
8:27 AM - 9:57 AM

Action Rating: 3 out of 5

Sunday, March 8, 2026

Weather Forecast

Patchy rain nearby
79°F
77.7°F
78.4°F
73%
0.07 in
89%
0%
24.8 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 7.12 μg/m3
PM10: 10.93 μg/m3
Carbon Monoxide: 110.87 μg/m3
Nitrogen Dioxide: 1.29 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 69.46 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 12:29 AM
Sunset: 6:27 PM
Daylight: 11 hrs 54 mins
Moonrise: 11:05 PM
Moon Transit: 3:55 AM
Moonset: 9:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 69.3%

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
7:17 PM - 9:47 PM

Minor Periods

12:00 AM - 12:00 AM
9:05 AM - 10:35 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.

Webcams Near St. John, VI

Sponsored Content