Trunk Bay

Poor to Fair

St. John, USVI

Updated 1h ago·Data from Storm Glass·refreshes every 2h

Estimates only. Not safety advice. Verify locally before entering the water. Terms & Conditions

AI Spot Summary

Trunk Bay is looking a bit lackluster today, with that persistent E wind churning up the shallows and keeping the water from its usual crystal-clear standard. The estimated visibility today is 20-30 ft, which is a bit of a letdown for the underwater trail, though the minimal rainfall means we aren't dealing with much runoff clouding things up further. With the tide currently on the rise, the reef is quiet, but that cross-shore breeze is definitely making its presence felt across the surface.

Wind

E 19 mph

Cross-Shore

24-hour wind Now · 1:00 AM

12a

12p

12a

Wave Height

Surf

Flat

Estimated breaking wave height

Swell

HeightPeriodDir3.2 ft5sE 95°0.4 ft8sNNE 15°0.3 ft10sNNW 346°

Visibility

~20-30ft

Estimate based on swell, runoff and forecast clarity at site

Rainfall

Minimal impact

0.03in / 24h

0.10" in last 72 hours

Temperature

83°

Water

82°

Air

86%

Cloud Cover

Tide · AST

1.4ft

at 1:00 AM · hover to scrub

State: Rising

Next low at 7:43 AM

1.4ft

0.2ft

1.0ft

0.4ft

12a

12p

12a

Low 0.2 ft @ 7:43 AMHigh 1.4 ft @ 12:55 AM

Forecast

Best Window Ahead

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3 of 10 days · AM / PM · Pro

Today

Jun 20

Morning

Poor to Fair

Afternoon

Poor to Fair

Sun

Jun 21

Morning

Poor to Fair

Afternoon

Poor to Fair

Mon

Jun 22

Morning

Poor to Fair

Afternoon

Poor to Fair

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Site Notes

Underwater trail marked with signs along the reef. North-facing — exposed to northerly swells in winter. Best on calm days. National Park entrance fee required.