Staying Home Sucks, home
Charlotte Amalie, St. Thomas, US Virgin Islands - panoramio (13)
Charlotte Amalie, the nearest town, 7 km away. Photo: MARELBU, CC BY 3.0, Wikimedia Commons

Cow and Calf

Dive site · United States Virgin Islands

Open Water divers and up

Scored for Advanced divers

Is it worth the trip?

80Good out of 100 for your dates

Home sucks

Best on Mon 9: Sea 0.3 m, Visibility about 20 m, Water 29 °C

Each day of your trip, out of 100

Tue 3 · 80 out of 100

Sea
0.5 m
Wind
12 kn
Gusts
15kn
Air
29°C

Wed 4 · 82 out of 100

Sea
0.4 m
Wind
8 kn
Gusts
12kn
Air
29°C

Thu 5 · 82 out of 100

Sea
0.3 m
Wind
9 kn
Gusts
12kn
Air
29°C

Fri 6 · 77 out of 100

Sea
0.4 m
Wind
13 kn
Gusts
17kn
Air
28°C

Sat 7 · 68 out of 100

Sea
0.5 m
Wind
7 kn
Gusts
21kn
Air
29°C

Sun 8 · 71 out of 100

Sea
0.4 m
Wind
6 kn
Gusts
12kn
Air
28°C

Mon 9 · 84 out of 100

Sea
0.3 m
Wind
2 kn
Gusts
7kn
Air
29°C

Tap a day for sea, wind and water. Full forecast

Forecast: next 9 days

Full forecast
  1. Mon 276, good
  2. Tue 380, good
  3. Wed 482, good
  4. Thu 582, good
  5. Fri 677, good
  6. Sat 768, good
  7. Sun 871, good
  8. Mon 984, good
  9. Tue 1083, good

The site in five facts

  • Down to 12 mits deepest
  • From a boathow you get in
  • Open Waterand up
  • Water 29 °Crash vest or 1 to 2 mm
  • Faces SWswell from there reaches it

Full forecast

every day, every number

The score doesn't know currents, the visibility on the day or your certification.

Suits Open Water divers and up, as a dive guide states it. Scored for Advanced divers.

Sea and wind forecast and score for each day at Cow and Calf
DayScoreSeaWindGustsAir
Mon 2Nov76, good0.6 m15 kn20kn29°C
Tue 3Nov80, good0.5 m12 kn15kn29°C
Wed 4Nov82, good0.4 m8 kn12kn29°C
Thu 5Nov82, good0.3 m9 kn12kn29°C
Fri 6Nov77, good0.4 m13 kn17kn28°C
Sat 7Nov68, good0.5 m7 kn21kn29°C
Sun 8Nov71, good0.4 m6 kn12kn28°C
Mon 9Nov84, good0.3 m2 kn7kn29°C
Tue 10Nov83, good0.2 mflat6 kn12kn28°C

Sea is the waves near the site, in metres; wind and gusts in knots. "Boats in": gusts that keep dive boats in. More

Tide

  • Mon 2 NovLow 07:03 −0.1 mHigh 15:53 +0.1 mLow 23:48 −0.0 m
  • Tue 3 NovHigh 03:40 +0.0 mLow 08:56 −0.0 mHigh 16:31 +0.1 mLow 23:40 −0.0 m
  • Wed 4 NovHigh 05:51 +0.1 mLow 10:55 +0.0 mHigh 16:57 +0.1 mLow 23:49 −0.0 m

Local clock times; heights about mean sea level. On open coasts the times are usually within a quarter of an hour; in bays, estuaries and on the Gulf of Mexico they can be an hour or more out. Slack water, the safest time to dive where there is current, is about half an hour either side of each high and low. Tide: EOT20 global ocean tide model, Hart-Davis et al. 2021, DGFI-TUM (doi:10.17882/79489), CC BY 4.0. Times and heights computed by us. A model, not a tide table: check a local table before you go.

Forecast updated . It refreshes every three hours. Forecast data: ECMWF, DWD, Météo-France and NOAA, served by Open-Meteo.com (CC BY 4.0). Changed by us. Generated using E.U. Copernicus Marine Service Information.

Map

the site and its town

Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.

The map needs JavaScript. Every place on it is listed on this page, and each place's page links to Google Maps.

One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.

More diving near here

5 places

About

the place in full, sources, credits

About Cow and Calf

A reef dive. It goes down to 12 m. You get in from a boat. It suits Open Water divers and up, as a dive guide states it. The coast faces SW: swell from the SW reaches it, and wind from the NE blows out to sea. 2 dive centres or shops within 10 km, the nearest 4.7 km away. The sea is about 27°C in January, its coldest month (3 mm wetsuit), and 29°C in July, its warmest (rash vest or 1 to 2 mm). The town to stay in is Charlotte Amalie. Within 5 km we also list 2 dive sites.

  • What it is Reef.
  • How deep Down to 12 m.
  • Getting in From a boat.
  • Who it suits Suits Open Water divers and up, as a dive guide states it.
  • Dive centres 2 dive centres or shops within 10 km, the nearest 4.7 km away.

Water about 29°C: rash vest or 1 to 2 mm. Typical sea temperature for the time of year, not a forecast.

Visibility about 20 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Apr, May, Aug and Sep (about 25 m).

The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).

Rough cost (estimate): about US$724–US$1,370 each

about US$724–US$1,370 each · 6 nights, 2 sharing: flights, taxi, stay, food.

Our estimate from typical public prices, not a quote: check the real prices before you book (where they come from). Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.

How we worked it out 
Rough cost per person for this trip
WhatHow we worked it outEach
Flightsreturn ORD to STT, estimated from distance and season, 2 airlines on the route, with a hold bagabout US$281–US$590
Taxiairport and back, sharedabout US$20–US$33
Stay6 nights, a mid-range double, sharedabout US$201–US$328
Food7 days eating outabout US$221–US$415
Totalabout US$724–US$1,370

Guided dives are not priced yet: we have no sourced price, so it is not in it. Prices from public sources, checked in 2026.

Where to stay: Charlotte Amalie

Closest

Charlotte Amalie

12 min by car · 39 places to stay

See 39 places to stay in Charlotte Amalie · Booking.com

About Charlotte Amalie its beds, food and every spot near it

Drives are estimates. Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.

Getting there: about 9h

About 9h door to door from Chicago

Fly ORD → STT, direct, then 25 min by road

An estimate, one way; the journey never changes the score.

In the water

Dive centres nearby

The nearest named dive centres and shops within 25 km, in a straight line; training agencies where the map states them. Listings, not a recommendation. Dive centres: © OpenStreetMap contributors (ODbL). Credits

What you might see

Animals divers and surveys have recorded within 2 km of this site in the last 15 years. A record says someone saw it here, not that you will.

  • Massive Starlet Coral Siderastrea siderea

    Seen in 27 records, mostly Jul to Aug.

  • Mustard hill coral Porites astreoides

    Seen in 25 records, mostly Jul to Aug.

  • Finger coral Porites porites

    Seen in 21 records, mostly Jul to Aug.

  • Lettuce Coral Agaricia agaricites

    Seen in 17 records, mostly Jul to Aug.

  • Pseudodiploria strigosa

    Seen in 15 records, mostly Jul to Aug.

  • Orbicella faveolata

    Seen in 12 records, mostly Jul to Aug.

  • Great star coral Montastraea cavernosa

    Seen in 9 records.

  • Lesser Starlet Coral Siderastrea radians

    Seen in 8 records.

  • Lamarck's sheet coral Agaricia lamarcki

    Seen in 6 records.

  • Maze Coral Meandrina meandrites

    Seen in 6 records.

  • Lowrelief Lettuce Coral Agaricia humilis

    Seen in 5 records.

  • Orbicella franksi

    Seen in 5 records.

Records: OBIS (Ocean Biodiversity Information System, IOC-UNESCO), from the datasets named here, CC0 and CC BY records only. Names: WoRMS, through OBIS; common names from Wikidata. Largest datasets here: NOAA National Coral Reef Monitoring Program, Coral Demographic Data; NOAA National Coral Reef Monitoring Program, Benthic Cover Data. Credits

This week's visibility and the current no free forecast gives. Ask a dive centre before you book.