Hadston tides today
- Tide now 6.5 ft ↑ rising · high 4:47 am (17.4 ft)
- Best time to fish 3:40–6:10 pm average day · 6/10
- Beach day Not today Not a beach day · 1/10
- Waves · water 0.6 ft · 53 °F smooth · 2.5 s from the southwest
- Wind · air 6 mph · 51 °F from the SW, gusts 11 · overcast
- Surf today Flat Flat day · 1/10 · 6:26–10:00 am
- Sun 7:05 am–4:35 pm 9 h 30 min of daylight
- Moon 85% · 5:55 pm waning gibbous · rises at 5:55 pm
Today in Hadston there are high tides at 4:47 am (17.4 ft) and 5:11 pm (16.8 ft) and low tides at 11:13 am and 11:36 pm. Tide coefficient 93. Right now the tide is rising toward the high tide at 4:47 am. The sun rises at 7:05 am and sets at 4:35 pm: 9 h 30 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 5:55 pm. Major solunar periods run from 1:32 am to 3:32 am and from 2:04 pm to 4:04 pm. The next spring tides arrive from November 9 to 11. The sea is smooth, with 0.6 ft waves. There's a light breeze from the southwest (6 mph). Overcast, 51 °F.
Fishing in Hadston today
Best time to fish
Solunar activity today: high- High tide at 5:11 pm, coefficient 90
- Major period 2:04–4:04 pm
- Minor period 5:25–6:25 pm (moonrise)
- Sunset at 4:35 pm, golden hour from 3:40 pm
- Rising pressure (+0.17 inHg in 24 h), almost no wind and calm sea (0.3 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 93 (spring tides)
- A major period lines up with sunset
Your day at a glance
The best window, 3:40 pm to 6:10 pm, combines the 5:11 pm high tide, a major period, moonrise and sunset, though with rising pressure. Also worth a try from 10:10 am to 12:10 pm, with the 11:13 am low tide and moonset, though with rising pressure.
Species with the most records nearby: whiting, haddock, Atlantic cod and European plaice. October is one of the months when these are seen most: whiting and Atlantic cod. What you can catch
Beach day in Hadston
Is it a beach day?
- Mostly sunny
- Offshore breeze (6 mph)
- Calm for swimming: 0.3 ft waves
- Low tide at 11:13 am: more sand
- Feels like 57 °F: chilly for the beach
- Water at 53 °F (very cold)
Today, hour by hour
- Swimming Calm · 0.3 ft
0.3 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 53 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 1 · SPF 15
Max UV 1 (low): SPF 15 sunscreen.
- Wind 6 mph
Offshore breeze (6 mph).
- Tide & sand 11:13 am
Low tide at 11:13 am and 11:36 pm: that's when there's the most sand. High tide at 4:47 am and 5:11 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 Hadston
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Druridge Bay North 1.4 mi · E
- Parking
Excellent water quality 2025 season, Environment Agency
- Amble Links Beach 3.0 mi · NE
Excellent water quality 2025 season, Environment Agency
- Warkworth Beach 4.0 mi · N
Excellent water quality 2025 season, Environment Agency
- Broad Sand Rocks 5.3 mi · SE
- Parking
Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
UK bathing water quality: Environment Agency. Contains public sector information licensed under the Open Government Licence v3.0. Full attribution.
Webcams near Hadston
Webcams provided by windy.com — add a webcam
Tides in Hadston
Today's high and low tides
- ▲ Next high tide 4:47 am 17.4 ft · coef. 93
- ▼ Low tide 11:13 am 3.3 ft
- ▲ High tide 5:11 pm 16.8 ft · coef. 90
- ▼ Low tide 11:36 pm 3.2 ft
↑ Rising The tide is rising. 4 h 2 min to high tide at 4:47 am.
Tide coefficient 93 for the 4:47 am high tide and 90 for the 5:11 pm high tide. Spring tides. The water rises and falls 14.3 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 September 29 (18.0 ft) and the lowest, on August 14 (1.0 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 27 to 28 (coefficient 96, 15.3 ft range). The smallest, on October 19 (coefficient 33, 5.8 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 | 7:05 am · 4:35 pm | High tide 4:47 am · 17.4 ft | Low tide 11:13 am · 3.3 ft | High tide 5:11 pm · 16.8 ft | Low tide 11:36 pm · 3.2 ft | Coef. 93 | 85% | Major periods 1:32 am · 2:04 pm | High |
| Fri 30 | 7:07 am · 4:32 pm | High tide 5:38 am · 16.8 ft | Low tide 11:59 am · 4.2 ft | High tide 5:58 pm · 16.4 ft | — | Coef. 86 | 76% | Major periods 2:37 am · 3:09 pm | Medium |
| Sat 31 | 7:09 am · 4:30 pm | Low tide 12:27 am · 3.7 ft | High tide 6:34 am · 15.9 ft | Low tide 12:51 pm · 5.4 ft | High tide 6:52 pm · 15.8 ft | Coef. 75 | 65% | Major periods 3:40 am · 4:10 pm | Medium |
| Sun 1 | 7:11 am · 4:28 pm | Low tide 1:26 am · 4.4 ft | High tide 7:38 am · 15.0 ft | Low tide 1:54 pm · 6.5 ft | High tide 7:54 pm · 15.1 ft | Coef. 64 | Last quarter | Major periods 4:38 am · 5:06 pm | Low |
| Mon 2 | 7:13 am · 4:26 pm | Low tide 2:39 am · 5.0 ft | High tide 8:54 am · 14.2 ft | Low tide 3:15 pm · 7.1 ft | High tide 9:09 pm · 14.6 ft | Coef. 55 | 43% | Major periods 5:32 am · 5:58 pm | Medium |
| Tue 3 | 7:15 am · 4:24 pm | Low tide 4:03 am · 5.1 ft | High tide 10:17 am · 14.0 ft | Low tide 4:41 pm · 7.0 ft | High tide 10:32 pm · 14.6 ft | Coef. 55 | 32% | Major periods 6:22 am · 6:45 pm | Medium |
| Wed 4 | 7:17 am · 4:22 pm | Low tide 5:22 am · 4.7 ft | High tide 11:33 am · 14.3 ft | Low tide 5:53 pm · 6.4 ft | High tide 11:45 pm · 15.0 ft | Coef. 62 | 23% | Major periods 7:08 am · 7:30 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
Hadston has no station of its own, so we use the tide at Blyth (Environment Agency), 12 mi away. On the open coast the difference is usually a few minutes and inches; inside estuaries, rivers and enclosed bays it can be much larger.
Station data attribution: This uses Environment Agency flood and river level data from the real-time data API (Beta): Blyth (022999), https://environment.data.gov.uk/flood-monitoring/id/stations/022999. Contains public sector information licensed under the Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/). Modified: harmonic constants fitted by TidePlanet from the measured tidal levels of 2025-10-29 to 2026-10-22 (356 days).
The sea at Hadston
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.3 ft
- Significant0.6 ft
- Highest expectedHighest1.2 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 1.2 ft. Before heading out, expect waves of up to 1.2 ft.
Wind on the coast and offshore
Offshore wind. The coast faces east and the wind blows from land out to sea: calm shore and clean waves, but watch the drift out to sea.
Wave height, next 7 daysWaves, next 7 days
Waves build over the next few days. The biggest waves arrive on Monday 2: 2.6 ft with a period of 5 s, from the north-northeast (slight).
Water temperature
Water temperature →Water temperature changes how fish behave: in very cold or very warm water they feed less. The water is steady these days, with no sudden changes.
Water warmer than normal for late October (+1.8 °F).
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 12:45 am (local time).
Nearest buoy
This is a real measurement of the sea, not a forecast. Data from North East Coastal Observatory, 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).
Surf in Hadston today
Surf today
Flat- Barely any waves (0.2 ft sets): flat
- Light offshore wind (5 mph): it holds up and grooms the waves
- First or last light of the day
- Falling tide (low tide at 11:13 am)
It’s flat today: almost no waves reach this coast.
- Light: First light 6:26 am · sunrise 7:05 am · sunset 4:35 pm · last light 5:13 pm
- Tide: high 4:47 am (17.4 ft), low 11:13 am (3.3 ft), high 5:11 pm (16.8 ft) and low 11:36 pm (3.2 ft). Every break has its own tide: some work at low tide and others at high tide. The tide doesn’t change the score here.
- Water at 52.7 °F: a 5/4 fullsuit with booties (and a hood if it’s windy).
- Energy: 0 kJ · Low power
Today’s surf at a glance
The best window, 6:26 am to 10:00 am, has light offshore wind, though with barely any waves.
An estimate for this stretch of coast, not for a specific break: every beach or reef works its own way (its tide, bottom and angle). Check it when you get there.
Follow the flags and the lifeguards, and don’t paddle out if the surf is above your level: this score is a guide, not a substitute for what you see when you get there.
Diving in Hadston today
Diving and snorkeling today
Likely visibility: good- Slack water around low tide (11:13 am): little current from 10:50 am to 11:30 am
- 0.2 ft swell at 2 s from the south-southeast: barely any surge
- Light offshore wind (5 mph)
- 0.2 mph current toward the northeast, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 4:47 am (4:20–5:10 am), low tide 11:13 am (10:50–11:30 am), high tide 5:11 pm (4:50–5:40 pm) and low tide 11:36 pm (11:10 pm–12:00 am)
- Likely visibility: good. The sea has been calm and there's been little rain. Based on the last 24 hours of data.
- Water at 52.7 °F: a 7 mm semi-dry suit, with hood, gloves and booties.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 5:13 pm. Waning gibbous (85%), rising at 5:55 pm: a bright night.
Your diving day at a glance
The best window, 10:00 am to 12:10 pm, combines slack water at low tide, little swell, light wind, weak current and the sun high. Also worth a look from 3:50 pm to 4:30 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
- Regian 2.0 mi
- Queen Wilhelmina 2.8 mi
- Coquet Mouth 3.5 mi
- Rising Sun 3.7 mi
- Bullger 3.8 mi
- Olimpia/?olympia 6.0 mi
- Upcerne 6.2 mi
- Hornchurch 7.2 mi
- Espire 7.3 mi
- Wreck 3.0 mi
- Wreck 5.4 mi
- The Honest Diver Supply Co 11 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 Hadston
Now in Hadston
- Low / high
- 48 / 58 °F
- Rain
- 0.00 in · 0%
- Clouds
- 100%
- Humidity
- 84%
- Dew pointDew point
- 46 °F
- Visibility
- 18 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 22
- 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: +0.20 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 | Mainly clear | Mainly clear | Clear sky | Overcast | Overcast | Partly cloudy |
| Temperature | 51° | 50° | 49° | 50° | 56° | 58° | 53° | 50° |
| Wind (mph) | 7 SW | 6 SW | 5 SW | 4 SSW | 6 SSW | 4 SSW | 3 SSE | 5 SSW |
| Gusts | 12 | 10 | 8 | 7 | 10 | 9 | 6 | 8 |
| Waves | 0.6 ft | 0.4 ft | 0.3 ft | 0.3 ft | 0.3 ft | 0.3 ft | 0.3 ft | 0.5 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 |
- 12:00 am 51° 7 SW 0.6 ft
- 3:00 am 50° 6 SW 0.4 ft
- 6:00 am 49° 5 SW 0.3 ft
- 9:00 am 50° 4 SSW 0.3 ft
- 12:00 pm 56° 6 SSW 0.3 ft
- 3:00 pm 58° 4 SSW 0.3 ft
- 6:00 pm 53° 3 SSE 0.3 ft
- 9:00 pm 50° 5 SSW 0.5 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 48 / 58 °F | 7 mph SSW | 0.6 ft | 4:47 am · 5:11 pm | |
| Fri 30 | 48 / 55 °F | 10 mph S | 1.0 ft | 5:38 am · 5:58 pm | |
| Sat 31 | 45 / 57 °F | 7 mph SW | 1.0 ft | 6:34 am · 6:52 pm | |
| Sun 1 | 46 / 53 °F | 12 mph NNW | 2.6 ft | 7:38 am · 7:54 pm | |
| Mon 2 | 45 / 51 °F | 11 mph NNW | 2.6 ft | 8:54 am · 9:09 pm | |
| Tue 3 | 43 / 52 °F | 8 mph N | 1.8 ft | 10:17 am · 10:32 pm | |
| Wed 4 | 35 / 51 °F | 3 mph WSW | 1.4 ft | 11:33 am · 11:45 pm | |
| Thu 5 | 41 / 49 °F | 3 mph ESE | 1.0 ft | 12:32 pm | |
| Fri 6 | 47 / 51 °F | 8 mph SE | 1.2 ft | 12:44 am · 1:20 pm | |
| Sat 7 | 46 / 50 °F | 5 mph ESE | 2.8 ft | 1:32 am · 2:01 pm | |
| Sun 8 | 37 / 47 °F | 3 mph SE | 1.8 ft | 2:14 am · 2:37 pm | |
| Mon 9 | 46 / 52 °F | 7 mph ESE | 2.7 ft | 2:51 am · 3:11 pm | |
| Tue 10 | 49 / 53 °F | 5 mph N | 2.7 ft | 3:27 am · 3:43 pm | |
| Wed 11 | 50 / 53 °F | 5 mph ENE | 3.3 ft | 4:01 am · 4:15 pm |
- Fri 30 Overcast 48° / 55° 1.0 ft
- Sat 31 Overcast 45° / 57° 1.0 ft
- Sun 1 Overcast 46° / 53° 2.6 ft
- Mon 2 Light showers 45° / 51° 2.6 ft
- Tue 3 Overcast 43° / 52° 1.8 ft
- Wed 4 Overcast 35° / 51° 1.4 ft
- Thu 5 Overcast 41° / 49° 1.0 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 Next few weeks, compared with normal: normal temperatures, normal rain and a slightly warmer sea. See the outlook →
- Normal Today, warmer than normal for late October (+5.6 °F; normal high: 53 °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 12:45 am (local time).
The sun in Hadston
Sunrise and sunset
- First light 5:43 am
- Full dark 5:56 pm
- Civil dawn 6:26 am
- Civil dusk 5:13 pm
- Solar noon 11:50 am (21° high)
- Daylight 9 h 30 min (−4 min)
- Evening golden hour 3:40 pm
- Full dark 5:56 pm
Golden hour and the day-night map
Today the sun is 92,335,442 mi away and looks 32′ 11″ across.
The moon in Hadston
Moon phase and position
Today the moon is 226,641 mi away and looks 32′ 45″ across.
Solunar periods
Today's activity: high- 1:32–3:32 am Major · the moon passes overhead · high activity
- 2:04–4:04 pm Major · the moon passes underfoot · high activity
- 11:43 am–12:43 pm Minor · moonset · medium activity
- 5:25–6:25 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 Hadston
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- South Jetty 3.2 mi
- South Pier 3.3 mi
- Newbiggin Fisherman's Breakwater 8.6 mi
- Newbiggin Breakwater 8.7 mi
- Coquet Yacht Club 3.0 mi
- Coquet Shorebase 3.1 mi
- Boat ramp 4.5 mi
- Lifeboat Ramp 8.4 mi
- Public beach ramp 8.5 mi
- Aln Harbour 6.3 mi
- Amble Angling Centre 3.0 mi
- Nobody Just a Fishermans 8.5 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
Shallow, gradualShallow, gradual bottom: you need to go 1.3 mi out for 33 ft of water.
From the shoreline (1.7 mi from Hadston) out to sea, heading east.
How far from shore
- 16 ft deep0.6 mi
- 33 ft deep1.3 mi
- 66 ft deep1.6 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. Shallow, gradual bottom (16 ft at 0.6 mi): cast far from the beach and fish the high tide, when there is more water close in.
- 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 near shore: you only reach 33 ft at 1.3 mi. For dives deeper than 33 ft, go by boat.
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
Amble South Pier light 3.3 mi northeast
- Light
- A red flash every 5 s · Fl R 5s
- Range
- 5 nautical miles (5.8 mi)
- Light height
- 30 ft above sea level
- Tower height
- 26 ft
Other lighthouses nearby: Amble North Pier light (3.4 mi northeast), Coquet Lighthouse (3.7 mi northeast).
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikidata · Sources and licenses
Tides near HadstonTides nearby
- East Chevington1.1 mi
- Amble2.8 mi
- Warkworth3.9 mi
- Lynemouth6.1 mi
- Lesbury7.3 mi
- Ashington8.2 mi
- Newbiggin-by-the-Sea8.3 mi
- Stakeford9.3 mi
- Longhoughton9.5 mi
- Choppington10.0 mi
Hadston at a glance
- Town or city of about 3,570 people. Coordinates: 55.294° N, 1.604° W.
- It is 12 mi north of Blyth, the main place in Northumberland. The sun rises 1 min later and sets at the same time than in Blyth.
- The nearest tide station, Blyth, is 12 mi to the south.
- Its coast faces east.
- Beaches and harbors nearby: Warkworth Harbour (3.1 mi).
Questions about HadstonQuestions
What time is high tide today in Hadston?
Today in Hadston there are high tides at 4:47 am (17.4 ft) and 5:11 pm (16.8 ft) and low tides at 11:13 am and 11:36 pm. Tide coefficient 93.
What time is sunset today in Hadston?
At 4:35 pm. There is light until the end of civil twilight, at 5:13 pm.
What time is sunrise tomorrow in Hadston?
At 7:07 am. First light comes at 5:45 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 1:32–3:32 am, Minor 11:43 am–12:43 pm, Major 2:04–4:04 pm, Minor 5:25–6:25 pm. Today's activity is high.
What's the weather like today in Hadston?
Overcast, from 48 °F to 58 °F, with a light breeze from the southwest (6 mph) and a 0% chance of rain.
How is the sea today in Hadston?
Smooth (Douglas 2): 0.6 ft waves with a period of 2.5 s from the southwest. The water is 52.9 °F.
When is the best time to visit Hadston?
The best time to visit Hadston is from July to August: highs of 67 °F to 67 °F, about 11 rainy days a month and 5 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: Blyth tidal level station of the Environment Agency (England). This uses Environment Agency flood and river level data from the real-time data API (Beta), under the Open Government Licence v3.0; constants fitted by TidePlanet from a year of its readings. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).