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

Current Water Temperature

81.3°F

Measurement Time: Sunday, March 16, 2025, 11:00 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 / 0 meters

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 (46.0 mi)
Caribbean Sea, Esperanza, PR (47.7 mi)
Atlantic Ocean, San Juan, PR (89.0 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 (90.0 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

84.7°F
Sunny
Conditions: Sunny
Humidity: 58%
Feels Like: 94.6°F
Wind: N 8.1 mph
Wind Gusts: 10.7 mph
Pressure: 29.98 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 6.2

Five Day Weather Forecast

Sunny
Sun
H: 82°F
L: 77°F
Patchy rain nearby
Mon
H: 79°F
L: 76°F
Sunny
Tue
H: 80°F
L: 76°F
Moderate rain
Wed
H: 83°F
L: 77°F
Sunny
Thu
H: 77°F
L: 76°F

Air Quality

AQI: 2 - Moderate
PM2.5: 8.14 μg/m3
PM10: 12.77 μg/m3
Carbon Monoxide: 231.25 μg/m3
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 12:00 AM
Sunset: 6:29 PM
Daylight: 12 hrs 3 mins
Moonrise: 8:32 PM
Moon Transit: 1:43 AM
Moonset: 7:39 AM
Moon Phase: Full
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
5:01 PM - 7:31 PM

Minor Periods

8:02 PM - 9:32 PM
7:09 AM - 8:39 AM

Action Rating: 3 out of 5

Rip Current Statement issued March 16 at 10:54AM AST until March 17 at 6:00AM AST by NWS San Juan PR

Effective: Sun March 16, 2025, 10:54 AM
Expires: Sun March 16, 2025, 7:00 PM

* WHAT...Breaking waves around 6 feet, and occasionally higher, resulting in life-threatening rip currents. * WHERE...Beaches along the northern coast of Puerto Rico, from Rincon to Fajardo, as well as northern exposed beaches of Culebra, St Thomas and St. John. * WHEN...Through late tonight. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water, where it becomes difficult to return to safety. * ADDITIONAL DETAILS...A pulse of a long-period northerly swell spreading across the Atlantic waters and local passages will promote life-threatening rip currents. Therefore, the High Rip Current Risk continues in effect through late tonight.

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 16 at 10:54AM AST until March 17 at 6:00AM AST by NWS San Juan PR

Effective: Sun March 16, 2025, 10:54 AM
Expires: Sun March 16, 2025, 7:00 PM

* WHAT...Breaking waves around 6 feet, and occasionally higher, resulting in life-threatening rip currents. * WHERE...Beaches along the northern coast of Puerto Rico, from Rincon to Fajardo, as well as northern exposed beaches of Culebra, St Thomas and St. John. * WHEN...Through late tonight. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water, where it becomes difficult to return to safety. * ADDITIONAL DETAILS...A pulse of a long-period northerly swell spreading across the Atlantic waters and local passages will promote life-threatening rip currents. Therefore, the High Rip Current Risk continues in effect through late tonight.

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 16 at 10:54AM AST until March 17 at 6:00AM AST by NWS San Juan PR

Effective: Sun March 16, 2025, 10:54 AM
Expires: Sun March 16, 2025, 7:00 PM

* WHAT...Breaking waves around 6 feet, and occasionally higher, resulting in life-threatening rip currents. * WHERE...Beaches along the northern coast of Puerto Rico, from Rincon to Fajardo, as well as northern exposed beaches of Culebra, St Thomas and St. John. * WHEN...Through late tonight. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water, where it becomes difficult to return to safety. * ADDITIONAL DETAILS...A pulse of a long-period northerly swell spreading across the Atlantic waters and local passages will promote life-threatening rip currents. Therefore, the High Rip Current Risk continues in effect through late tonight.

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 16 at 10:54AM AST until March 17 at 6:00AM AST by NWS San Juan PR

Effective: Sun March 16, 2025, 10:54 AM
Expires: Sun March 16, 2025, 7:00 PM

* WHAT...Breaking waves around 6 feet, and occasionally higher, resulting in life-threatening rip currents. * WHERE...Beaches along the northern coast of Puerto Rico, from Rincon to Fajardo, as well as northern exposed beaches of Culebra, St Thomas and St. John. * WHEN...Through late tonight. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water, where it becomes difficult to return to safety. * ADDITIONAL DETAILS...A pulse of a long-period northerly swell spreading across the Atlantic waters and local passages will promote life-threatening rip currents. Therefore, the High Rip Current Risk continues in effect through late tonight.

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 16 at 10:54AM AST until March 17 at 6:00AM AST by NWS San Juan PR

Effective: Sun March 16, 2025, 10:54 AM
Expires: Sun March 16, 2025, 7:00 PM

* WHAT...Breaking waves around 6 feet, and occasionally higher, resulting in life-threatening rip currents. * WHERE...Beaches along the northern coast of Puerto Rico, from Rincon to Fajardo, as well as northern exposed beaches of Culebra, St Thomas and St. John. * WHEN...Through late tonight. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water, where it becomes difficult to return to safety. * ADDITIONAL DETAILS...A pulse of a long-period northerly swell spreading across the Atlantic waters and local passages will promote life-threatening rip currents. Therefore, the High Rip Current Risk continues in effect through late tonight.

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.


Sunday, March 16, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 78°F
Average Humidity: 78%
Chance of Rain: 0%
Wind: 12.5 mph
UV Index: 2.8

Air Quality

AQI: 1 - Good
PM2.5: 8.64 μg/m3
PM10: 12.87 μg/m3
Carbon Monoxide: 237.24 μg/m3
Nitrogen Dioxide: 1.37 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 76.96 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 12:00 AM
Sunset: 6:29 PM
Daylight: 12 hrs 3 mins
Moonrise: 8:32 PM
Moon Transit: 1:43 AM
Moonset: 7:39 AM
Moon Phase: Full
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
5:01 PM - 7:31 PM

Minor Periods

8:02 PM - 9:32 PM
7:09 AM - 8:39 AM

Action Rating: 3 out of 5

Monday, March 17, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 76.9°F
Average Humidity: 79%
Chance of Rain: 68%
Wind: 13 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 6.57 μg/m3
PM10: 10.43 μg/m3
Carbon Monoxide: 226.37 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 69.44 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 12:00 AM
Sunset: 6:30 PM
Daylight: 12 hrs 4 mins
Moonrise: 9:21 PM
Moon Transit: 2:24 AM
Moonset: 8:13 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

1:54 AM - 4:24 AM
5:42 PM - 8:12 PM

Minor Periods

8:51 PM - 10:21 PM
7:43 AM - 9:13 AM

Action Rating: 2 out of 5

Tuesday, March 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 77.3°F
Average Humidity: 82%
Chance of Rain: 0%
Wind: 12.3 mph
UV Index: 2.7

Air Quality

AQI: 1 - Good
PM2.5: 5.66 μg/m3
PM10: 8.67 μg/m3
Carbon Monoxide: 228.96 μg/m3
Nitrogen Dioxide: 1.64 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 71.6 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 12:00 AM
Sunset: 6:30 PM
Daylight: 12 hrs 5 mins
Moonrise: 10:13 PM
Moon Transit: 3:06 AM
Moonset: 8:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

2:36 AM - 5:06 AM
6:26 PM - 8:56 PM

Minor Periods

9:43 PM - 11:13 PM
8:19 AM - 9:49 AM

Action Rating: 3 out of 5

Wednesday, March 19, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 78.2°F
Average Humidity: 80%
Chance of Rain: 84%
Wind: 15 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 10.11 μg/m3
PM10: 15.24 μg/m3
Carbon Monoxide: 242.5 μg/m3
Nitrogen Dioxide: 1.37 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 86.12 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:00 AM
Sunset: 6:30 PM
Daylight: 12 hrs 6 mins
Moonrise: 11:06 PM
Moon Transit: 3:51 AM
Moonset: 9:28 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

3:21 AM - 5:51 AM
7:14 PM - 9:44 PM

Minor Periods

12:00 AM - 12:00 AM
8:58 AM - 10:28 AM

Action Rating: 2 out of 5

Thursday, March 20, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 76.7°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 12.8 mph
UV Index: 0.2

Air Quality

AQI: 2 - Moderate
PM2.5: 16.37 μg/m3
PM10: 25.47 μg/m3
Carbon Monoxide: 260.14 μg/m3
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 114.23 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 4:38 AM
Sunset: 6:30 PM
Daylight: 12 hrs 7 mins
Moonrise: 12:06 AM
Moon Transit: 4:39 AM
Moonset: 10:12 AM
Moon Phase: Last Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
8:04 PM - 10:34 PM

Minor Periods

9:42 AM - 11:12 AM
12:00 AM - 12:00 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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