Undy tides today
- Tide now 14.9 ft ↑ rising · high 9:05 am (43.9 ft)
- Best time to fish 3:00–4:10 pm good day · 8/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 0.3 ft · 55 °F calm (rippled) · 5.7 s from the west-southwest
- Wind · air 1 mph · 51 °F from the SE, gusts 4 · fog
- Sun 7:00 am–4:50 pm 9 h 50 min of daylight
- Moon 85% · 6:33 pm waning gibbous · rises at 6:33 pm
- Best time to dive 8:40–9:30 am great day · 9/10
Today in Undy there are high tides at 9:05 am (43.9 ft) and 9:28 pm (42.7 ft) and low tides at 3:36 am and 3:57 pm. Tide coefficient 85. Right now the tide is rising toward the high tide at 9:05 am. The sun rises at 7:00 am and sets at 4:50 pm: 9 h 50 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 6:33 pm. Major solunar periods run from 1:37 am to 3:37 am and from 2:09 pm to 4:09 pm. The next spring tides arrive from November 9 to 11. The sea is calm (rippled), with 0.3 ft waves. There's a light air from the southeast (1 mph). Fog, 51 °F.
Fishing in Undy today
Best time to fish
Solunar activity today: medium- Low tide at 3:57 pm
- Major period 2:09–4:09 pm
- Sunset at 4:50 pm, golden hour from 4:01 pm
- Steady pressure (30.33 inHg), light cross-shore wind (6 mph) and calm sea (0.1 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 85 (average tides)
- A major period lines up with sunset
Your day at a glance
The best window, 3:00 pm to 4:10 pm, combines the 3:57 pm low tide, a major period and sunset. Also worth a try from 2:40 am to 3:40 am, with the 3:36 am low tide and a major period, though with rising pressure.
Species with the most records nearby: European flounder, common sole, whiting and Atlantic cod. October is one of the months when these are seen most: European flounder and common sole. What you can catch
Beach day in Undy
Is it a beach day?
- Cross-shore breeze (8 mph)
- Calm for swimming: 0.2 ft waves
- Low tide at 3:57 pm: more sand
- Fog
- Feels like 57 °F: chilly for the beach
- Water at 55 °F (very cold)
Today, hour by hour
- Swimming Calm · 0.2 ft
0.2 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 55 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 1 · SPF 15
Max UV 1 (low): SPF 15 sunscreen.
- Wind 8 mph
Cross-shore breeze (8 mph).
- Tide & sand 3:57 pm
Low tide at 3:36 am and 3:57 pm: that's when there's the most sand. High tide at 9:05 am and 9:28 pm.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority. How it works · The next 7 days
Beaches near Undy
We don't know of any named beaches within 6.2 mi of Undy.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Undy
Webcams provided by windy.com — add a webcam
Tides in Undy
Today's high and low tides
- ▼ Low tide 3:36 am 4.8 ft
- ▲ Next high tide 9:05 am 43.9 ft · coef. 85
- ▼ Low tide 3:57 pm 5.7 ft
- ▲ High tide 9:28 pm 42.7 ft · coef. 82
↑ Rising The tide is rising. 3 h 41 min to high tide at 9:05 am.
Tide coefficient 85 for the 9:05 am high tide and 82 for the 9:28 pm high tide. Average coefficient. The water rises and falls 39.1 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?
2026 extremes: the highest tide of the year is on April 18 (45.9 ft) and the lowest, on March 20 (1.9 ft).
Semidiurnal: two high and two low tides a day, of similar height.
Heights above chart datum: the lowest astronomical tide (LAT), the zero of nautical charts in Europe. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. chart datum (LAT)
Tide coefficient and range in October
The biggest tides of the month came from October 9 to 11 (coefficient 94, 42.5 ft range). The smallest, on October 20 (coefficient 37, 13.9 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 7:00 am · 4:50 pm | Low tide 3:36 am · 4.8 ft | High tide 9:05 am · 43.9 ft | Low tide 3:57 pm · 5.7 ft | High tide 9:28 pm · 42.7 ft | Coef. 85 | 85% | Major periods 1:37 am · 2:09 pm | Medium |
| Fri 30 | 7:01 am · 4:48 pm | Low tide 4:14 am · 6.4 ft | High tide 9:45 am · 42.1 ft | Low tide 4:34 pm · 7.3 ft | High tide 10:11 pm · 40.4 ft | Coef. 79 | 76% | Major periods 2:42 am · 3:14 pm | Medium |
| Sat 31 | 7:03 am · 4:46 pm | Low tide 4:50 am · 8.4 ft | High tide 10:29 am · 39.9 ft | Low tide 5:12 pm · 9.2 ft | High tide 10:58 pm · 37.8 ft | Coef. 70 | 65% | Major periods 3:45 am · 4:15 pm | Medium |
| Sun 1 | 7:05 am · 4:44 pm | Low tide 5:27 am · 10.6 ft | High tide 11:21 am · 37.5 ft | Low tide 5:54 pm · 11.1 ft | High tide 11:55 pm · 35.3 ft | Coef. 62 | Last quarter | Major periods 4:43 am · 5:11 pm | Medium |
| Mon 2 | 7:07 am · 4:42 pm | Low tide 6:13 am · 12.6 ft | High tide 12:25 pm · 35.6 ft | Low tide 6:53 pm · 12.8 ft | — | Coef. 54 | 43% | Major periods 5:37 am · 6:03 pm | Medium |
| Tue 3 | 7:08 am · 4:41 pm | High tide 1:07 am · 33.7 ft | Low tide 7:27 am · 13.9 ft | High tide 1:43 pm · 35.0 ft | Low tide 8:37 pm · 12.9 ft | Coef. 52 | 32% | Major periods 6:27 am · 6:50 pm | Medium |
| Wed 4 | 7:10 am · 4:39 pm | High tide 2:31 am · 34.2 ft | Low tide 9:22 am · 12.6 ft | High tide 3:06 pm · 36.6 ft | Low tide 10:05 pm · 10.5 ft | Coef. 60 | 23% | Major periods 7:13 am · 7:35 pm | Medium |
▲ high tide · ▼ low tide · heights above chart datum (LAT). Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Where this tide comes from
Tides from the Severn Bridge station (TICON-4), 4.9 mi from Undy. Times and heights are its predictions.
Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data
The sea at Undy
Sea stateSea state: calm (rippled)
The waves you may find
- Most commonMost common0.1 ft
- Significant0.3 ft
- Highest expectedHighest0.6 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 0.6 ft. Before heading out, expect waves of up to 0.6 ft.
Wind on the coast and offshore
Cross-shore wind. The coast faces southwest and the wind blows along the shore: drift and current run parallel to the beach.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Tuesday 3: 0.7 ft with a period of 2 s, from the north-northeast (smooth).
Water temperature
Water temperature →The satellite measured 2.9 °F more 2 days ago than the model gives now: the water is probably warmer than the forecast says.
Water temperature changes how fish behave: in very cold or very warm water they feed less. The water cools over the next few days: about 53.6 °F by Wednesday 4.
Water about normal for late October.
Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses
Water temperature →Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 5:24 am (local time).
Nearest marine station
This is a real measurement of the sea, not a forecast. Data from Channel Coastal Observatory (CCO), National Network of Regional Coastal Monitoring Programmes (NNRCMP), via the E.U. Copernicus Marine Service. Generated using E.U. Copernicus Marine Service Information (doi:10.48670/moi-00036).
Diving in Undy today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (9:05 am): little current from 8:50 am to 9:20 am
- 0.1 ft swell at 4 s from the west-southwest: barely any surge
- Almost no wind
- 0.8 mph current toward the southwest (model)
- Sun high: more light underwater
- Slack water today: low tide 3:36 am (3:20–3:51 am), high tide 9:05 am (8:50–9:20 am), low tide 3:57 pm (3:40–4:12 pm) and high tide 9:28 pm (9:10–9:43 pm)
- Likely visibility: good. The sea has been calm and there's been little rain. Based on the last 24 hours of data.
- Water at 54.7 °F: a 7 mm semi-dry suit, with hood, gloves and booties.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 5:25 pm. Waning gibbous (85%), rising at 6:33 pm: a bright night.
Your diving day at a glance
The best window, 8:40 am to 9:30 am, combines slack water at high tide, little swell, light wind and the sun high, though with current. Also worth a look from 2:30 pm to 3:30 pm, with little swell, light wind and weak current, though with tidal current.
Slack water comes from the tide: in inlets, channels and between islands the water can keep running for an hour or two after. Ask the local dive shop.
Never dive alone and check with the local dive shop: this rating is a guide, not a substitute for a professional.
Dive sites, wrecks and dive shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Mercia 3.4 mi
- R M Hunton 5.4 mi
- Sarah 5.6 mi
- Sea King 6.0 mi
- Sea Prince (part Of) 6.0 mi
- Tean 6.2 mi
- Stormcock 6.3 mi
- The William 6.3 mi
- Wreck 6.8 mi
- Mikes Diving Ltd 6.5 mi
- Welsh Diving 7.9 mi
- The Wire Zip Slide 9.2 mi
Within 12 mi. Some may be missing or closed; marine reserves usually need a permit. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap
Wreck and reef positions are approximate and not for navigation; a wreck’s depth runs from the top of the hull to the seabed.
Sites: © OpenStreetMap contributors (ODbL). Wrecks: EMODnet Human Activities (AND-International), from UK Hydrographic Office data, CC BY 4.0. Contains public sector information licensed under the Open Government Licence v3.0.
Weather in Undy
Now in Undy
- Low / high
- 50 / 59 °F
- Rain
- 0.00 in · 0%
- Clouds
- 93%
- Humidity
- 99%
- Dew pointDew point
- 51 °F
- Visibility
- 2.4 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 34
- Saharan dust
- No
- Pollen
- None
Pressure and fishing
- ↗ RisingRising Anglers say fish bite less for a while
- → SteadySteady · now Anglers expect normal activity
- ↘ FallingFalling Anglers say fish feed more before the change
Steady now (+0.02 inHg in 3 hours). Over the next 48 hours: +0.12 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.
Today, hour by hourHour by hour
Bars: mean wind. Dashed line: gusts. Arrows point where the wind blows to.
| Time | 12:00 am | 3:00 am | 6:00 am | 9:00 am | 12:00 pm | 3:00 pm | 6:00 pm | 9:00 pm |
|---|---|---|---|---|---|---|---|---|
| Sky | Overcast | Overcast | Fog | Fog | Partly cloudy | Partly cloudy | Partly cloudy | Partly cloudy |
| Temperature | 55° | 52° | 51° | 52° | 58° | 58° | 54° | 51° |
| Wind (mph) | 4 SSW | 2 SSW | 2 ESE | 1 E | 5 ESE | 8 SE | 4 SE | 3 E |
| Gusts | 9 | 6 | 3 | 5 | 9 | 14 | 9 | 6 |
| Waves | 0.3 ft | 0.3 ft | 0.3 ft | 0.2 ft | 0.1 ft | 0.1 ft | 0.1 ft | 0.1 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in |
- 6:00 am 51° 2 ESE 0.3 ft
- 9:00 am 52° 1 E 0.2 ft
- 12:00 pm 58° 5 ESE 0.1 ft
- 3:00 pm 58° 8 SE 0.1 ft
- 6:00 pm 54° 4 SE 0.1 ft
- 9:00 pm 51° 3 E 0.1 ft
- 12:00 am 51° 4 ESE 0.1 ft
- 3:00 am 52° 4 E 0.1 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 50 / 59 °F | 8 mph SE | 0.3 ft | 9:05 am · 9:28 pm | |
| Fri 30 | 49 / 58 °F | 7 mph E | 0.1 ft | 9:45 am · 10:11 pm | |
| Sat 31 | 47 / 54 °F | 6 mph NE | 0.1 ft | 10:29 am · 10:58 pm | |
| Sun 1 | 46 / 53 °F | 9 mph N | 0.7 ft | 11:21 am · 11:55 pm | |
| Mon 2 | 46 / 52 °F | 12 mph NNE | 0.7 ft | 12:25 pm | |
| Tue 3 | 45 / 54 °F | 14 mph NE | 0.7 ft | 1:07 am · 1:43 pm | |
| Wed 4 | 50 / 54 °F | 11 mph NE | 0.7 ft | 2:31 am · 3:06 pm | |
| Thu 5 | 46 / 52 °F | 11 mph ENE | 0.7 ft | 3:49 am · 4:14 pm | |
| Fri 6 | 44 / 52 °F | 11 mph ENE | 0.7 ft | 4:49 am · 5:08 pm | |
| Sat 7 | 42 / 51 °F | 9 mph ENE | 1.2 ft | 5:37 am · 5:54 pm | |
| Sun 8 | 48 / 56 °F | 6 mph E | 0.7 ft | 6:19 am · 6:36 pm | |
| Mon 9 | 55 / 58 °F | 6 mph SE | 0.5 ft | 6:58 am · 7:14 pm | |
| Tue 10 | 55 / 57 °F | 7 mph SSE | 0.3 ft | 7:34 am · 7:50 pm | |
| Wed 11 | 54 / 55 °F | 10 mph SW | 1.0 ft | 8:08 am · 8:24 pm |
- Fri 30 Overcast 49° / 58° 0.1 ft
- Sat 31 Overcast 47° / 54° 0.1 ft
- Sun 1 Overcast 46° / 53° 0.7 ft
- Mon 2 Overcast 46° / 52° 0.7 ft
- Tue 3 Overcast 45° / 54° 0.7 ft
- Wed 4 Overcast 50° / 54° 0.7 ft
- Thu 5 Overcast 46° / 52° 0.7 ft
Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.
- The models They agree · high confidence for the next few days. See the models →
- Outlook The next few weeks look normal for the time of year. See the outlook →
- Normal Today, warmer than normal for late October (+3.2 °F; normal high: 56 °F). Climate by month →
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 5:24 am (local time).
The sun in Undy
Sunrise and sunset
- First light 5:45 am
- Full dark 6:04 pm
- Civil dawn 6:25 am
- Civil dusk 5:25 pm
- Solar noon 11:55 am (25° high)
- Daylight 9 h 50 min (−4 min)
- Evening golden hour 4:01 pm
- Full dark 6:04 pm
Golden hour and the day-night map
Today the sun is 92,335,361 mi away and looks 32′ 11″ across.
The moon in Undy
Moon phase and position
Today the moon is 226,641 mi away and looks 32′ 45″ across.
Solunar periods
Today's activity: medium- 1:37–3:37 am Major · the moon passes overhead · high activity
- 2:09–4:09 pm Major · the moon passes underfoot · high activity
- 11:15 am–12:15 pm Minor · moonset · medium activity
- 6:03–7:03 pm Minor · moonrise · medium activity
According to solunar theory, fish feed more when the moon passes overhead or underfoot (major periods, about 2 h) and when it rises or sets (minor periods, 1 h). It works best around new and full moon.
Upcoming moon phases
2026 moon calendar →- Last quarter Sun, Nov 1 · 8:29 pmNov 1 in 3 days
- New moon Mon, Nov 9 · 7:03 amNov 9 in 11 days
- First quarter Tue, Nov 17 · 11:48 amNov 17 in 19 days
- Full moon Tue, Nov 24 · 2:54 pmNov 24 in 26 days
Next perigee (the moon at its closest to Earth): November 25, 223,281 mi away.
Where to fish in Undy
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Portishead Pier 6.1 mi
- East Pier 6.3 mi
- North Pier 6.3 mi
- South Pier 6.4 mi
- New City Anglers 6.3 mi
- Boat ramp 5.9 mi
- Parish Wharf Slipway 6.4 mi
- Beachley Slipway 7.7 mi
- Portishead Quays Marina 6.4 mi
- Pill Marina 8.6 mi
- Mathern Mill Fishery, Mathern, Chepstow 5.9 mi
- Reel Fun Fishing 6.5 mi
Within 9.3 mi. A spot may be missing or closed. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap
Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.
Water depth
Very shallowVery shallow and flat: even 3.1 mi from shore the water is less than 16 ft deep.
From the shoreline (1.1 mi from Undy) out to sea, heading southwest.
How far from shore
- 16 ft deepnot within 3.1 mi
- 33 ft deepnot within 3.1 mi
- 66 ft deepnot within 3.1 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. Very shallow: the water doesn't reach 16 ft within 3.1 mi. Cast far from the beach, ideally around high tide.
- Swimming. A very gentle way in with plenty of shallow water, good for kids. At low tide the water can be far out.
- Diving. Shallow: the water doesn't reach 33 ft within 3.1 mi. For deeper dives, take a boat farther out.
Inside bays, estuaries and harbors the bottom changes a lot from spot to spot (channels and shoals): use this only as a rough guide. The profile is turned slightly from the coast so it does not run into an island or a headland.
Source: EMODnet Bathymetry DTM 2024 (CC BY 4.0), cells of about 380 ft; depth at the lowest astronomical tide. For reference only: not for navigation or anchoring.
Nearest lighthouse
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Charston Rock Lighthouse 5.2 mi east
- Light
- A white flash every 3 s · Fl W 3s
- Range
- 8 nautical miles (9.2 mi)
- Light height
- 16 ft above sea level
- Tower height
- 23 ft
- Built
- 1869
Other lighthouses nearby: Portishead Point lighthouse (5.9 mi south).
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikidata · Sources and licenses
Tides near UndyTides nearby
- Magor0.8 mi
- Rogiet1.8 mi
- Caldicot2.6 mi
- Caerleon6.4 mi
- Severn Beach6.6 mi
- New Passage6.7 mi
- Portishead6.7 mi
- Pilning7.4 mi
- Chepstow7.5 mi
- Newport7.9 mi
Undy at a glance
- Town or city of about 5,914 people. Coordinates: 51.575° N, 2.815° W.
- It is 7.4 mi southwest of Chepstow, the main place in Monmouthshire. The sun rises at the same time and sets 1 min later than in Chepstow.
- The nearest tide station, Severn Bridge, is 4.9 mi to the east.
- Its coast faces southwest.
Questions about UndyQuestions
What time is high tide today in Undy?
Today in Undy there are high tides at 9:05 am (43.9 ft) and 9:28 pm (42.7 ft) and low tides at 3:36 am and 3:57 pm. Tide coefficient 85.
What time is sunset today in Undy?
At 4:50 pm. There is light until the end of civil twilight, at 5:25 pm.
What time is sunrise tomorrow in Undy?
At 7:01 am. First light comes at 5:47 am.
What phase is the moon today?
Waning gibbous, 85% illuminated. New moon on Mon, Nov 9 · 7:03 am.
When are the next spring tides?
From November 9 to 11.
What are today's solunar periods?
Major 1:37–3:37 am, Minor 11:15 am–12:15 pm, Major 2:09–4:09 pm, Minor 6:03–7:03 pm. Today's activity is medium.
What's the weather like today in Undy?
Fog, from 50 °F to 59 °F, with a light air from the southeast (1 mph) and a 0% chance of rain.
How is the sea today in Undy?
Calm (rippled) (Douglas 1): 0.3 ft waves with a period of 5.7 s from the west-southwest. The water is 54.7 °F.
When is the best time to visit Undy?
The best time to visit Undy is from July to August: highs of 70 °F, about 9 rainy days a month and 6 hours of sunshine a day.
Can I use this data for navigation?
No. These are predictions for fishing and leisure; for navigation, use the official publications.
Where this data comes from
Tide: Severn Bridge station, with constants from TICON-4 (Hart-Davis, Dettmering and Seitz, 2025, SEANOE), licensed CC BY 4.0, via Slackwater database (changes). Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).