Portsmouth International Port tides today
- Tide now 12.5 ft ↓ falling · low 6:14 am (1.9 ft)
- Best time to fish 6:00–7:00 pm good day · 7/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 0.7 ft · 58 °F smooth · 5.2 s from the southwest
- Wind · air 4 mph · 56 °F from the SSW, gusts 7 · overcast
- Sun 6:51 am–4:45 pm 9 h 54 min of daylight
- Moon 85% · 6:32 pm waning gibbous · rises at 6:32 pm
- Best time to dive 8:50–10:10 am great day · 9/10
Today in Portsmouth International Port there are high tides at 12:55 am (15.1 ft) and 1:15 pm (15.2 ft) and low tides at 6:14 am and 6:36 pm. Tide coefficient 90. Right now the tide is falling toward the low tide at 6:14 am. The sun rises at 6:51 am and sets at 4:45 pm: 9 h 54 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 6:32 pm. Major solunar periods run from 1:30 am to 3:30 am and from 2:02 pm to 4:02 pm. The next spring tides arrive from November 9 to 11. The sea is smooth, with 0.7 ft waves. There's a light breeze from the south-southwest (4 mph). Overcast, 56 °F.
Fishing in Portsmouth International Port today
Best time to fish
Solunar activity today: medium- Low tide at 6:36 pm
- Minor period 6:02–7:02 pm (moonrise)
- Steady pressure (30.39 inHg), light onshore wind (5 mph) and calm sea (0.8 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 90 (spring tides)
- A major period lines up with sunset
Your day at a glance
The best window, 6:00 pm to 7:00 pm, combines the 6:36 pm low tide, moonrise and a light onshore breeze. Also worth a try from 6:20 am to 7:10 am, with the 6:14 am low tide and sunrise, though with rising pressure. Also good from 12:20 pm to 2:20 pm, with the 1:15 pm high tide, a major period and a light onshore breeze.
Species with the most records nearby: thornback ray, small-spotted catshark, common sole and European plaice. October is one of the months when these are seen most: thornback ray and small-spotted catshark. What you can catch
Beach day in Portsmouth International Port
Is it a beach day?
- Sun and clouds
- Onshore breeze (7 mph)
- Calm for swimming: 0.5 ft waves
- Feels like 58 °F: chilly for the beach
- Water at 59 °F (very cold)
- High tide at 1:15 pm
Today, hour by hour
- Swimming Calm · 0.5 ft
0.5 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 59 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 1 · SPF 15
Max UV 1 (low): SPF 15 sunscreen.
- Wind 7 mph
Onshore breeze (7 mph).
- Tide & sand 6:14 am
Low tide at 6:14 am and 6:36 pm: that's when there's the most sand. High tide at 12:55 am and 1:15 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 Portsmouth International Port
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Southsea East Beach 2.4 mi · S
- RNLI lifeguards in season
- Parking
Poor water quality 2025 season, Environment Agency
- Eastney Beach 3.0 mi · SE
- Parking
- Nudity allowed
Good water quality 2025 season, Environment Agency
- Sword Sands 3.1 mi · E
- West Winner 3.1 mi · SE
- Parking
- Stokes Bay 3.6 mi · SW
- Restrooms
- Parking
Good water quality 2025 season, Environment Agency
- East Winner 4.0 mi · SE
- Parking
- Hayling Eastoke Beach 5.8 mi · SE
- Restrooms
- Parking
Excellent water quality 2025 season, Environment Agency
- Hill Head Beach 5.9 mi · W
- Restrooms
- Showers
- Parking
Excellent water quality 2025 season, Environment Agency
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. Lifeguards: RNLI. Contains Open Data licensed under the GIS Open Data Licence.
Webcams near Portsmouth International Port
Webcams provided by windy.com — add a webcam
Tides in Portsmouth International Port
Today's high and low tides
- ▲ High tide 12:55 am 15.1 ft · coef. 90
- ▼ Next low tide 6:14 am 1.9 ft
- ▲ High tide 1:15 pm 15.2 ft · coef. 88
- ▼ Low tide 6:36 pm 1.6 ft
↓ Falling The tide is falling. 3 h 7 min to low tide at 6:14 am.
Tide coefficient 90 for the 12:55 am high tide and 88 for the 1:15 pm high tide. Spring tides. The water rises and falls 13.5 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 October 27 (15.6 ft) and the lowest, on May 18 (0.8 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 26 to 29 (coefficient 92, 13.9 ft range). The smallest, from October 19 to 20 (coefficient 35, 4.5 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 | 6:51 am · 4:45 pm | High tide 12:55 am · 15.1 ft | Low tide 6:14 am · 1.9 ft | High tide 1:15 pm · 15.2 ft | Low tide 6:36 pm · 1.6 ft | Coef. 90 | 85% | Major periods 1:30 am · 2:02 pm | Medium |
| Fri 30 | 6:53 am · 4:43 pm | High tide 1:46 am · 14.8 ft | Low tide 6:57 am · 2.4 ft | High tide 2:05 pm · 14.6 ft | Low tide 7:20 pm · 2.1 ft | Coef. 86 | 76% | Major periods 2:35 am · 3:06 pm | Medium |
| Sat 31 | 6:54 am · 4:41 pm | High tide 2:43 am · 14.2 ft | Low tide 7:43 am · 3.3 ft | High tide 3:01 pm · 13.8 ft | Low tide 8:09 pm · 3.0 ft | Coef. 78 | 65% | Major periods 3:37 am · 4:07 pm | Medium |
| Sun 1 | 6:56 am · 4:39 pm | High tide 3:55 am · 13.6 ft | Low tide 8:35 am · 4.4 ft | High tide 4:18 pm · 13.0 ft | Low tide 9:05 pm · 4.0 ft | Coef. 68 | Last quarter | Major periods 4:36 am · 5:04 pm | Medium |
| Mon 2 | 6:58 am · 4:37 pm | High tide 5:15 am · 13.2 ft | Low tide 9:43 am · 5.5 ft | High tide 5:40 pm · 12.6 ft | Low tide 10:33 pm · 4.9 ft | Coef. 59 | 43% | Major periods 5:30 am · 5:55 pm | Medium |
| Tue 3 | 6:59 am · 4:36 pm | High tide 6:25 am · 13.1 ft | Low tide 12:11 pm · 5.6 ft | High tide 6:50 pm · 12.5 ft | — | Coef. 56 | 32% | Major periods 6:20 am · 6:43 pm | Medium |
| Wed 4 | 7:01 am · 4:34 pm | Low tide 12:29 am · 4.6 ft | High tide 7:29 am · 13.3 ft | Low tide 1:12 pm · 5.0 ft | High tide 7:54 pm · 12.8 ft | Coef. 62 | 23% | Major periods 7:06 am · 7:28 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 Portsmouth station (Environment Agency), 1.2 mi from Portsmouth International Port. Times and heights are its predictions.
Station data attribution: This uses Environment Agency tide gauge data from the real-time data API (Beta): Portsmouth (E71824), https://environment.data.gov.uk/flood-monitoring/id/stations/E71824. 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 15-minute sea levels of 2025-10-29 to 2026-10-22 (356 days).
The sea at Portsmouth International Port
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.4 ft
- Significant0.7 ft
- Highest expectedHighest1.5 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 1.5 ft. Before heading out, expect waves of up to 1.5 ft.
Wind on the coast and offshore
Cross-onshore wind. The coast faces southeast and the wind comes in from the sea at an angle: a bit more surf at the shore and drift along the coast, toward land.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Wednesday 4: 2.0 ft with a period of 4 s, from the east (slight).
Water temperature
Water temperature →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 56.3 °F by Wednesday 4.
Water warmer than normal for late October (+1.3 °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 3:07 am (local time).
Nearest buoy
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 Portsmouth International Port today
Diving and snorkeling today
Likely visibility: good- 0.5 ft swell at 4 s from the southwest: barely any surge
- Light onshore wind (4 mph)
- 0.1 mph current toward the east, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 12:55 am (12:40–1:20 am), low tide 6:14 am (5:59–6:29 am), high tide 1:15 pm (1:00–1:40 pm) and low tide 6:36 pm (6:21–6:51 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 58.5 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 5:19 pm. Waning gibbous (85%), rising at 6:32 pm: a bright night.
Your diving day at a glance
The best window, 8:50 am to 10:10 am, combines little swell, light wind, weak current and the sun high.
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
- HMS Insolent 0.3 mi
- Vadne 2.0 mi
- Orion 2.5 mi
- Withern 2.7 mi
- Wreck 0.4 mi
- Wreck 1.2 mi
- Wreck 1.3 mi
- Wreck 1.5 mi
- North Solent Nature Reserve 11 mi
- Solent Divers and Safety Air Services 0.7 mi
- RS Divers 1.7 mi
- Triton Scuba 2.5 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 Portsmouth International Port
Now in Portsmouth International Port
- Low / high
- 52 / 60 °F
- Rain
- 0.00 in · 2%
- Clouds
- 100%
- Humidity
- 88%
- Dew pointDew point
- 52 °F
- Visibility
- 13 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 36
- 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 (+0.01 inHg in 3 hours). Over the next 48 hours: +0.04 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 | Partly cloudy | Partly cloudy | Partly cloudy | Overcast | Overcast |
| Temperature | 56° | 56° | 53° | 56° | 59° | 60° | 56° | 55° |
| Wind (mph) | 4 SSW | 4 SSW | 4 ENE | 3 E | 4 ESE | 7 ESE | 6 E | 7 E |
| Gusts | 7 | 7 | 6 | 7 | 10 | 14 | 12 | 12 |
| Waves | 0.9 ft | 0.7 ft | 0.6 ft | 0.5 ft | 0.5 ft | 0.5 ft | 0.7 ft | 1.0 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 |
- 3:00 am 56° 4 SSW 0.7 ft
- 6:00 am 53° 4 ENE 0.6 ft
- 9:00 am 56° 3 E 0.5 ft
- 12:00 pm 59° 4 ESE 0.5 ft
- 3:00 pm 60° 7 ESE 0.5 ft
- 6:00 pm 56° 6 E 0.7 ft
- 9:00 pm 55° 7 E 1.0 ft
- 12:00 am 54° 6 E 1.4 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 52 / 60 °F | 7 mph ESE | 1.2 ft | 12:55 am · 1:15 pm | |
| Fri 30 | 52 / 60 °F | 11 mph E | 1.8 ft | 1:46 am · 2:05 pm | |
| Sat 31 | 50 / 56 °F | 8 mph ENE | 1.8 ft | 2:43 am · 3:01 pm | |
| Sun 1 | 48 / 53 °F | 5 mph NNE | 1.2 ft | 3:55 am · 4:18 pm | |
| Mon 2 | 47 / 54 °F | 11 mph NNE | 1.6 ft | 5:15 am · 5:40 pm | |
| Tue 3 | 48 / 55 °F | 16 mph NNE | 1.6 ft | 6:25 am · 6:50 pm | |
| Wed 4 | 49 / 53 °F | 12 mph NE | 2.0 ft | 7:29 am · 7:54 pm | |
| Thu 5 | 46 / 52 °F | 14 mph ENE | 2.6 ft | 8:30 am · 8:54 pm | |
| Fri 6 | 49 / 53 °F | 17 mph ENE | 2.9 ft | 9:27 am · 9:49 pm | |
| Sat 7 | 49 / 56 °F | 13 mph E | 2.7 ft | 10:17 am · 10:37 pm | |
| Sun 8 | 53 / 57 °F | 10 mph S | 1.6 ft | 10:56 am · 11:13 pm | |
| Mon 9 | 56 / 58 °F | 10 mph SSE | 1.9 ft | 11:10 am · 11:26 pm | |
| Tue 10 | 56 / 60 °F | 16 mph SW | 2.6 ft | 11:28 am · 11:51 pm | |
| Wed 11 | 55 / 57 °F | 16 mph W | 2.3 ft | 11:58 am |
- Fri 30 Overcast 52° / 60° 1.8 ft
- Sat 31 Partly cloudy 50° / 56° 1.8 ft
- Sun 1 Overcast 48° / 53° 1.2 ft
- Mon 2 Overcast 47° / 54° 1.6 ft
- Tue 3 Overcast 48° / 55° 1.6 ft
- Wed 4 Light drizzle 49° / 53° 2.0 ft
- Thu 5 Mainly clear 46° / 52° 2.6 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 Partly agree · medium confidence: unsure about wind on Sunday 1. 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 (+3.1 °F; normal high: 57 °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 3:07 am (local time).
The sun in Portsmouth International Port
Sunrise and sunset
- First light 5:38 am
- Full dark 5:57 pm
- Civil dawn 6:17 am
- Civil dusk 5:19 pm
- Solar noon 11:48 am (26° high)
- Daylight 9 h 54 min (−4 min)
- Evening golden hour 3:57 pm
- Full dark 5:57 pm
Golden hour and the day-night map
Today the sun is 92,335,477 mi away and looks 32′ 11″ across.
The moon in Portsmouth International Port
Moon phase and position
Today the moon is 226,641 mi away and looks 32′ 45″ across.
Solunar periods
Today's activity: medium- 1:30–3:30 am Major · the moon passes overhead · high activity
- 2:02–4:02 pm Major · the moon passes underfoot · high activity
- 11:02 am–12:02 pm Minor · moonset · medium activity
- 6:02–7:02 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 Portsmouth International Port
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- HMS Warrior Jetty 1.3 mi
- South Railway Jetty 1.3 mi
- Shell Pier 1.5 mi
- Powder Pier (remains of) 1.6 mi
- Boat ramp 0.3 mi
- Boat ramp 0.5 mi
- Boat ramp 0.8 mi
- Marina 0.2 mi
- Gunwharf Quays Marina 1.5 mi
- Lock Stock and Tackle 1.6 mi
- Baits'R'Us 1.7 mi
- Fuel dock 1.6 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
Drops off fastThe bottom drops off fast: the water is 33 ft deep just 150 ft from shore.
From the shoreline (1.1 mi from Portsmouth International Port) out to sea, heading south.
How far from shore
- 16 ft deep70 ft
- 33 ft deep150 ft
- 66 ft deepnot within 1.2 mi
- 164 ft deepnot within 1.2 mi
For fishing, swimming and diving
- Shore fishing. Deep water close in: about 46 ft just 330 ft out. Good for casting from rocks, jetties or the beach itself; current and surf hit harder here.
- Swimming. The bottom drops quickly near the shore and you are soon out of your depth. Keep an eye on kids and weak swimmers.
- Diving. 33 ft deep 150 ft from shore; 66 ft is far out (beyond 1.2 mi): for deeper dives, go by boat.
Inside bays, estuaries and harbors the bottom changes a lot from spot to spot (channels and shoals): use this only as a rough guide. There is land ahead (an island, a headland or the far shore) 1.2 mi out. The profile is turned slightly from the coast so it does not run into an island or a headland. Right by the shore the bottom may drop even faster than shown. Where the bottom comes up to the surface there are shoals, rocks or an islet next to the profile.
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
Southsea Castle lighthouse 2.4 mi south
- Light
- White light, on and off for equal times, every 2 s · Iso W 2s
- Range
- 11 nautical miles (13 mi)
- Light height
- 52 ft above sea level
- Tower height
- 33 ft
- Built
- 1828
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near Portsmouth International PortTides nearby
- Portsmouth1.0 mi
- Hilsea1.6 mi
- Southsea2.0 mi
- Gosport2.1 mi
- Cosham2.6 mi
- Wallington4.2 mi
- Fareham4.7 mi
- Lee-on-the-Solent5.0 mi
- South Hayling5.2 mi
- Waterlooville5.3 mi
Portsmouth International Port at a glance
- Harbor. Coordinates: 50.813° N, 1.089° W.
- It is 1.0 mi north of Portsmouth, the main place in Portsmouth. The sun rises at the same time and sets at the same time than in Portsmouth.
- The nearest tide station, Portsmouth, is 1.2 mi to the southwest.
- Its coast faces southeast.
- Beaches and harbors nearby: Gosport Premier Marina (1.7 mi), Southsea Marina (2.8 mi), Stokes Bay Pier (historical) (3.6 mi).
Questions about Portsmouth International PortQuestions
What time is high tide today in Portsmouth International Port?
Today in Portsmouth International Port there are high tides at 12:55 am (15.1 ft) and 1:15 pm (15.2 ft) and low tides at 6:14 am and 6:36 pm. Tide coefficient 90.
What time is sunset today in Portsmouth International Port?
At 4:45 pm. There is light until the end of civil twilight, at 5:19 pm.
What time is sunrise tomorrow in Portsmouth International Port?
At 6:53 am. First light comes at 5:39 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 1:30–3:30 am, Minor 11:02 am–12:02 pm, Major 2:02–4:02 pm, Minor 6:02–7:02 pm. Today's activity is medium.
What's the weather like today in Portsmouth International Port?
Fog, from 52 °F to 60 °F, with a light breeze from the south-southwest (4 mph) and a 2% chance of rain.
How is the sea today in Portsmouth International Port?
Smooth (Douglas 2): 0.7 ft waves with a period of 5.2 s from the southwest. The water is 58.5 °F.
When is the best time to visit Portsmouth International Port?
The best time to visit Portsmouth International Port is from July to August: highs of 72 °F, about 8 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: Portsmouth tide gauge (UK National Tide Gauge Network). This uses Environment Agency tide gauge 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).