Experienced divers only
Is it worth the trip?
88Good out of 100 for your dates
Best on Tue 3: Sea: flat, Visibility about 25 m, Water 28 °C
Mon 2 · 89 out of 100
- Sea
- 0.1 mflat
- Wind
- 8 kn
- Gusts
- 11kn
- Air
- 28°C
Tue 3 · 90 out of 100
- Sea
- 0.1 mflat
- Wind
- 5 kn
- Gusts
- 7kn
- Air
- 29°C
Wed 4 · 82 out of 100
- Sea
- 0.5 m
- Wind
- 18 kn
- Gusts
- 24kn
- Air
- 29°C
Thu 5 · 88 out of 100
- Sea
- 0.3 m
- Wind
- 10 kn
- Gusts
- 16kn
- Air
- 28°C
Fri 6 · 89 out of 100
- Sea
- 0.2 mflat
- Wind
- 7 kn
- Gusts
- 12kn
- Air
- 27°C
Sat 7 · 88 out of 100
- Sea
- 0.3 m
- Wind
- 12 kn
- Gusts
- 18kn
- Air
- 27°C
Sun 8 · 87 out of 100
- Sea
- 0.4 m
- Wind
- 14 kn
- Gusts
- 22kn
- Air
- 26°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 9 days
Full forecast- Mon 289, good
- Tue 390, good
- Wed 482, good
- Thu 588, good
- Fri 689, good
- Sat 788, good
- Sun 887, good
- Mon 981, good
- Tue 1080, good
The site in five facts
- Down to 20 mits deepest
- From a boathow you get in
- Experienced / deepexperienced divers only
- Water 28 °C3 mm wetsuit
- Faces Eswell 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 experienced divers only, as a dive guide states it. Scored for experienced divers.
| Day | Score | Sea | Wind | Gusts | Air |
|---|---|---|---|---|---|
| Mon 2Nov | 89, good | 0.1 mflat | 8 kn | 11kn | 28°C |
| Tue 3Nov | 90, good | 0.1 mflat | 5 kn | 7kn | 29°C |
| Wed 4Nov | 82, good | 0.5 m | 18 kn | 24kn | 29°C |
| Thu 5Nov | 88, good | 0.3 m | 10 kn | 16kn | 28°C |
| Fri 6Nov | 89, good | 0.2 mflat | 7 kn | 12kn | 27°C |
| Sat 7Nov | 88, good | 0.3 m | 12 kn | 18kn | 27°C |
| Sun 8Nov | 87, good | 0.4 m | 14 kn | 22kn | 26°C |
| Mon 9Nov | 81, good | 0.4 m | 20 kn | 28kn | 25°C |
| Tue 10Nov | 80, good | 0.4 m | 21 kn | 29kn | 25°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 05:43 −0.3 mHigh 12:21 +0.1 mLow 18:44 −0.2 m
- Tue 3 NovHigh 00:49 +0.1 mLow 07:12 −0.3 mHigh 13:36 +0.1 mLow 20:04 −0.3 m
- Wed 4 NovHigh 02:10 +0.1 mLow 08:27 −0.3 mHigh 14:39 +0.2 mLow 21:06 −0.3 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
St John's Caves on Google Maps · Directions
Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.
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One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.
About
the place in full, sources, credits
About St John's Caves
A cave dive. It goes down to 20 m. You get in from a boat. It suits experienced divers only, as a dive guide states it. The coast faces E: swell from the E reaches it, and wind from the W blows out to sea. No dive centre within 50 km on the map: book a liveaboard or a boat from further off. The sea is about 24°C in January, its coldest month (5 mm wetsuit), and 31°C in August, its warmest (rash vest or 1 to 2 mm). No town nearby. Hamata, 85 km away, is the nearest town we list; we have not checked places to stay there. Nearest beds: Marsa Alam, 185 km. Nearest airport: Prince Abdulmohsen Bin Abdulaziz International Airport (YNB), 234 km. Within 5 km we also list 1 dive site.
- What it is Cave.
- How deep Down to 20 m.
- Getting in From a boat.
- Who it suits Suits experienced divers only, as a dive guide states it.
- Dive centres No dive centre within 50 km on the map: book a liveaboard or a boat from further off.
Water about 28°C: 3 mm wetsuit. Typical sea temperature for the time of year, not a forecast.
Visibility about 25 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Aug, Sep and Oct (about 30 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$757–US$1,550 each
about US$757–US$1,550 each · 6 nights, 2 sharing: flights, hire car, 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
| What | How we worked it out | Each |
|---|---|---|
| Flights | return ORD to RMF, estimated from distance and season, changing at ZRH, full-service airlines, with a hold bag | about US$677–US$1,410 |
| Hire car | 6 days, shared | about US$27–US$40 |
| Food | 7 days eating out | about US$54–US$100 |
| Total | about US$757–US$1,550 |
No town nearby, so no stay is in it. 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: nearest beds 185 km away
Ad Links marked Ad may pay us if you book. You pay the same, and they never change a score. How we earn
No town nearby
Hamata, 85 km away, is the nearest town we list; we have not checked places to stay there. Nearest beds: Marsa Alam, 185 km. Nearest airport: Prince Abdulmohsen Bin Abdulaziz International Airport (YNB), 234 km.
See places to stay near Marsa Alam, 185 km away · Booking.comDistances are straight lines: a site out at sea is reached by boat.
Getting there: about 25h 40m
About 25h 40m door to door from Chicago
Fly ORD → RMF, changing at Zürich Airport (ZRH), then 4h 35m by road
Flights ORD → RMF on your dates · AviasalesAdeSIM for your phone · Search on AiraloAd
An estimate, one way; the journey never changes the score.
In the water
Dives and courses in St John's Caves · GetYourGuideDive gear hire in St John's Caves · GetYourGuide
Dive centres nearby
No dive centre mapped within 50 km.
Dive centres: © OpenStreetMap contributors (ODbL). Credits
What you might see
Too few open records near this site to list its animals. Ask a dive centre what you are likely to see.
This week's visibility, the current and the life no free forecast gives. Ask a dive centre before you book.
Saved: this link opens the same trip
The link holds the trip itself: nothing about you is kept. Check the forecast again before you book.