Dartmouth Mewstone
Dive site · UK
Advanced divers and up
Is it worth the trip?
54Fair out of 100 for your dates
Best on Sun 8: Sea: flat, Visibility about 5 m, Water 14 °C
Mon 2 · 53 out of 100
- Sea
- 0.5 m
- Wind
- 17 kn
- Gusts
- 25kn
- Air
- 12°C
Tue 3 · 51 out of 100
- Sea
- 0.7 m
- Wind
- 19 kn
- Gusts
- 27kn
- Air
- 13°C
Wed 4 · 2 out of 100
- Sea
- 1.0 m
- Wind
- 23 kn
- Gusts
- 32knboats in
- Air
- 11°C
Thu 5 · 26 out of 100
- Sea
- 0.8 m
- Wind
- 19 kn
- Gusts
- 28knboats in
- Air
- 12°C
Fri 6 · 63 out of 100
- Sea
- 0.5 m
- Wind
- 6 kn
- Gusts
- 12kn
- Air
- 11°C
Sat 7 · 65 out of 100
- Sea
- 0.1 mflat
- Wind
- 5 kn
- Gusts
- 11kn
- Air
- 10°C
Sun 8 · 67 out of 100
- Sea
- 0.1 mflat
- Wind
- 1 kn
- Gusts
- 10kn
- Air
- 9°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 10 days
Full forecast- Sun 164, good
- Mon 253, fair
- Tue 351, fair
- Wed 42, poor
- Thu 526, poor
- Fri 663, good
- Sat 765, good
- Sun 867, good
- Mon 960, good
- Tue 1063, good
The site in five facts
- Down to 35 mits deepest
- From a boathow you get in
- Advancedand up
- Water 14 °C7 mm semi-dry or a drysuit
- Faces SEswell 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 Advanced divers and up, as a dive guide states it. Scored for Advanced divers.
| Day | Score | Sea | Wind | Gusts | Air |
|---|---|---|---|---|---|
| Sun 1Nov | 64, good | 0.4 m | 12 kn | 17kn | 11°C |
| Mon 2Nov | 53, fair | 0.5 m | 17 kn | 25kn | 12°C |
| Tue 3Nov | 51, fair | 0.7 m | 19 kn | 27kn | 13°C |
| Wed 4Nov | 2, poor | 1.0 m | 23 kn | 32knboats in | 11°C |
| Thu 5Nov | 26, poor | 0.8 m | 19 kn | 28knboats in | 12°C |
| Fri 6Nov | 63, good | 0.5 m | 6 kn | 12kn | 11°C |
| Sat 7Nov | 65, good | 0.1 mflat | 5 kn | 11kn | 10°C |
| Sun 8Nov | 67, good | 0.1 mflat | 1 kn | 10kn | 9°C |
| Mon 9Nov | 60, good | 0.3 m | 13 kn | 17kn | 13°C |
| Tue 10Nov | 63, good | 0.3 m | 9 kn | 16kn | 11°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
- Sun 1 NovLow 03:43 −1.4 mHigh 10:13 +1.4 mLow 16:23 −1.4 mHigh 23:03 +1.0 m
- Mon 2 NovLow 04:43 −1.1 mHigh 11:33 +1.2 mLow 17:32 −1.2 m
- Tue 3 NovHigh 00:37 +0.8 mLow 05:56 −0.9 mHigh 13:06 +1.1 mLow 18:54 −1.1 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.
Best time to go
No month stands out
Good diving days in a typical week, each month, for Advanced divers, from 2016 on (ERA5 history scored the same way).
- Jan7of 7: a trip from Sat 2 Jan
- Feb6of 7: a trip from Sat 6 Feb
- Mar7of 7: a trip from Sat 6 Mar
- Apr7of 7: a trip from Sat 3 Apr
- May7of 7: a trip from Sat 1 May
- Jun7of 7: a trip from Sat 5 Jun
- Jul7of 7: a trip from Sat 3 Jul
- Aug7of 7: a trip from Sat 7 Aug
- Sep7of 7: a trip from Sat 4 Sept
- Oct7of 7: a trip from Sat 2 Oct
- Nov7of 7: a trip from Mon 2 Nov
- Dec6of 7: a trip from Sat 5 Dec
Tap a month to see this spot for a trip then.
Typical, not a forecast: the sea and the mean wind of each day, with no gusts or rain in the history.
Map
the site, its town, photos
Dartmouth Mewstone on Google Maps · Directions
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.
Photos of Dartmouth Mewstone
About
the place in full, sources, credits
About Dartmouth Mewstone
It goes down to 35 m. You get in from a boat. It suits Advanced divers and up, as a dive guide states it. The coast faces SE: swell from the SE reaches it, and wind from the NW blows out to sea. No dive centre within 10 km, the nearest 24 km away. The sea is about 9°C in March, its coldest month (drysuit), and 17°C in July, its warmest (7 mm wetsuit and hood). The town to stay in is Dartmouth. Within 5 km we also list 3 dive sites.
- What it is No source states what kind of site it is.
- How deep Down to 35 m.
- Getting in From a boat.
- Who it suits Suits Advanced divers and up, as a dive guide states it.
- Dive centres No dive centre within 10 km, the nearest 24 km away.
Water about 14°C: 7 mm semi-dry or a drysuit. Typical sea temperature for the time of year, not a forecast.
Visibility about 5 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct and Nov (about 7 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$1,170–US$2,200 each
about US$1,170–US$2,200 each · 6 nights, 2 sharing: flights, hire car, 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
| What | How we worked it out | Each |
|---|---|---|
| Flights | return ORD to EXT, estimated from distance and season, changing at DUB, full-service airlines, with a hold bag | about US$435–US$911 |
| Hire car | 6 days, shared | about US$141–US$234 |
| Stay | 6 nights, a mid-range double, shared | about US$281–US$469 |
| Food | 7 days eating out | about US$315–US$583 |
| Total | about US$1,170–US$2,200 |
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: Dartmouth
7 min by car · 72 places to stay
about US$107/nightcountry average
About Dartmouth its beds, food and every spot near it
About US$107 a night is our estimate of the country's average 2-star double room that month: not each town's price, and not a quote. 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 16h 40m
About 16h 40m door to door from Chicago
Fly ORD → EXT, changing at Dublin Airport (DUB), then 1h 05m by road
Flights ORD → EXT on your dates · Skyscanner
An estimate, one way; the journey never changes the score.
In the water
Dives and courses in Dartmouth · GetYourGuideDive gear hire in Dartmouth · GetYourGuide
Dive centres nearby
Teign Diving Centre 24 km
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.
Nursehound Scyliorhinus stellarisShark
Seen in 9 records.
Dead man’s fingers Alcyonium digitatum
Seen in 48 records, mostly Apr to Jul.
Common sea star Asterias rubens
Seen in 39 records, mostly Apr to Jul.
Dahlia anemone Urticina felina
Seen in 13 records, mostly Jun to Sep.
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: Marine Recorder Snapshot extract of surveys entered by SeaSearch; Marine Recorder Snapshot extract of surveys entered by Natural England; Great Eggcase Hunt - citizen science observations of chondrichthyian eggcases; Basking Shark Project - citizen science observations of Cetorhinus maximus; RSMP Baseline Dataset. Credits
This week: visibility about 5 m, about usual for the month (satellite plankton reading, 24 Oct). Estimated from the month's typical visibility and this week's satellite chlorophyll against the site's normal; heavy rain before a dive can still muddy it.
The current no free forecast gives. Ask a dive centre before you book.