Posillipo tides today
- Tide now 0.8 ft ↓ falling · low 4:19 am (0.2 ft)
- Best time to fish 3:50–5:30 pm average day · 6/10
- Beach day 11:00 am–4:00 pm Fair beach day · 5/10
- Waves · water 0.5 ft · 71 °F smooth · 4.5 s from the west-southwest
- Wind · air 4 mph · 60 °F from the NNE, gusts 11 · mainly clear
- Sun 6:30 am–5:03 pm 10 h 33 min of daylight
- Moon 85% · 7:22 pm waning gibbous · rises at 7:22 pm
- Best time to dive 10:10–11:50 am great day · 10/10
Today in Posillipo there are high tides at 11:02 am (1.3 ft) and 11:03 pm (1.1 ft) and low tides at 4:19 am and 4:52 pm. Tide coefficient 87. Right now the tide is falling toward the low tide at 4:19 am. The sun rises at 6:30 am and sets at 5:03 pm: 10 h 33 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 7:22 pm. Major solunar periods run from 1:26 am to 3:26 am and from 1:58 pm to 3:58 pm. The next spring tides arrive from November 9 to 11. The sea is smooth, with 0.5 ft waves. There's a light breeze from the north-northeast (4 mph). Mainly clear, 60 °F.
Fishing in Posillipo today
Best time to fish
Solunar activity today: medium- Low tide at 4:52 pm
- Major period 1:58–3:58 pm
- Sunset at 5:03 pm, golden hour from 4:25 pm
- Steady pressure (30.09 inHg), light offshore wind (5 mph) and calm sea (0.3 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 87 (average tides)
Your day at a glance
The best window, 3:50 pm to 5:30 pm, combines the 4:52 pm low tide, a major period and sunset. Also good from 10:00 am to 11:00 am, with the 11:02 am high tide and moonset. Also good from 3:20 am to 5:20 am, with the 4:19 am low tide and a major period.
Species with the most records nearby: white seabream, common two-banded seabream, salema and striped red mullet. What you can catch
Beach day in Posillipo
Is it a beach day?
- Sun and clouds
- Offshore breeze (5 mph)
- Calm for swimming: 0.3 ft waves
- UV 3 (moderate): SPF 30 sunscreen
- Water at 71 °F (nice)
- Low tide at 4:52 pm: more sand
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 71 °F
Nice for swimming.
- Sun & sunscreen UV 3 · SPF 30
Max UV 3 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 5 mph
Offshore breeze (5 mph).
- Tide & sand 4:19 am
Low tide at 4:19 am and 4:52 pm: that's when there's the most sand. High tide at 11:02 am and 11:03 pm.
The best window, 11:00 am to 4:00 pm, brings little wind, a calm sea, water at 71 °F and low tide at 4:52 pm, though with cool air.
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 Posillipo
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Spiaggia delle Monache 0.8 mi · NE
- Spiaggia Largo Sermoneta 1.2 mi · NE
- Spiaggia della Gaiola 1.5 mi · SW
- Restrooms
- Showers
- Parking
- Lido Mappatella 2.1 mi · NE
- Showers
- Wheelchair access
Excellent water quality 2025 season, EEA
- Spiaggia del Poggio 6.1 mi · W
- Parking
Excellent water quality 2025 season, EEA
- spiaggetta verde 6.1 mi · W
- Parking
Excellent water quality 2025 season, EEA
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). Bathing water quality: European Environment Agency (EEA), with data from the Italian Ministry of Health (Portale Acque).
Webcams near Posillipo
Webcams provided by windy.com — add a webcam
Tides in Posillipo
Today's high and low tides
- ▼ Next low tide 4:19 am 0.2 ft
- ▲ High tide 11:02 am 1.3 ft · coef. 87
- ▼ Low tide 4:52 pm 0.4 ft
- ▲ High tide 11:03 pm 1.1 ft · coef. 80
↓ Falling The tide is falling. 3 h 31 min to low tide at 4:19 am.
Tide coefficient 87 for the 11:02 am high tide and 80 for the 11:03 pm high tide. Average coefficient. The water rises and falls 1.1 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 September 11 (1.3 ft) and the lowest, on February 3 (-0.3 ft).
Semidiurnal: two high and two low tides a day, of similar height.
Heights above MLWS. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. MLWS
Tide coefficient and range in October
The biggest tides of the month came from October 26 to 27 (coefficient 100, 1.2 ft range). The smallest, from October 18 to 19 (coefficient 27, 0.5 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 | 6:30 am · 5:03 pm | Low tide 4:19 am · 0.2 ft | High tide 11:02 am · 1.3 ft | Low tide 4:52 pm · 0.4 ft | High tide 11:03 pm · 1.1 ft | Coef. 87 | 85% | Major periods 1:26 am · 1:58 pm | Medium |
| Fri 30 | 6:31 am · 5:02 pm | Low tide 5:01 am · 0.2 ft | High tide 11:59 am · 1.2 ft | Low tide 5:52 pm · 0.4 ft | High tide 11:55 pm · 1.0 ft | Coef. 73 | 76% | Major periods 2:31 am · 3:03 pm | Medium |
| Sat 31 | 6:32 am · 5:01 pm | Low tide 5:52 am · 0.3 ft | High tide 1:04 pm · 1.2 ft | Low tide 7:07 pm · 0.5 ft | — | Coef. 59 | 66% | Major periods 3:34 am · 4:04 pm | Medium |
| Sun 1 | 6:34 am · 5:00 pm | High tide 12:59 am · 0.9 ft | Low tide 7:05 am · 0.4 ft | High tide 2:17 pm · 1.1 ft | Low tide 8:46 pm · 0.5 ft | Coef. 54 | Last quarter | Major periods 4:33 am · 5:00 pm | Medium |
| Mon 2 | 6:35 am · 4:58 pm | High tide 2:27 am · 0.8 ft | Low tide 8:51 am · 0.4 ft | High tide 3:29 pm · 1.1 ft | Low tide 10:21 pm · 0.4 ft | Coef. 48 | 43% | Major periods 5:27 am · 5:52 pm | Medium |
| Tue 3 | 6:36 am · 4:57 pm | High tide 4:08 am · 0.8 ft | Low tide 10:16 am · 0.4 ft | High tide 4:35 pm · 1.1 ft | Low tide 11:28 pm · 0.4 ft | Coef. 55 | 33% | Major periods 6:16 am · 6:40 pm | Medium |
| Wed 4 | 6:37 am · 4:56 pm | High tide 5:26 am · 0.9 ft | Low tide 11:16 am · 0.3 ft | High tide 5:32 pm · 1.1 ft | — | Coef. 64 | 23% | Major periods 7:03 am · 7:25 pm | Medium |
▲ high tide · ▼ low tide · heights above MLWS. 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 Napoli station (TICON-4), 4.1 mi from Posillipo. 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 Posillipo
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.2 ft
- Significant0.5 ft
- Highest expectedHighest1.0 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 1.0 ft. Before heading out, expect waves of up to 1.0 ft.
Wind on the coast and offshore
Offshore wind. The coast faces south 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: 2.4 ft with a period of 4 s, from the northwest (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 68.7 °F by Wednesday 4.
Water warmer than normal for late October (+1.5 °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 12:48 am (local time).
Surf in Posillipo today
Surf today
Flat- Barely any waves (0.5 ft sets): flat
- Light offshore wind (5 mph): it holds up and grooms the waves
- First or last light of the day
- Rising tide (high tide at 11:02 am)
It’s flat today: almost no waves reach this coast.
- Light: First light 6:02 am · sunrise 6:30 am · sunset 5:03 pm · last light 5:32 pm
- Tide: low 4:19 am (0.2 ft), high 11:02 am (1.3 ft), low 4:52 pm (0.4 ft) and high 11:03 pm (1.1 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 70.3 °F: a springsuit or a 2 mm fullsuit.
- Energy: 0 kJ · Low power
Today’s surf at a glance
The best window, 6:02 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 Posillipo today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (11:02 am): little current from 10:40 am to 11:20 am
- 0.3 ft swell at 4 s from the west-southwest: barely any surge
- Light offshore wind (4 mph)
- 0.1 mph current toward the west, weak (model)
- Sun high: more light underwater
- Slack water today: low tide 4:19 am (4:00–4:40 am), high tide 11:02 am (10:40–11:20 am), low tide 4:52 pm (4:30–5:20 pm) and high tide 11:03 pm (10:40–11:30 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 70.3 °F: a 5 mm wetsuit.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 5:32 pm. Waning gibbous (85%), rising at 7:22 pm: a bright night.
Your diving day at a glance
The best window, 10:10 am to 11:50 am, combines slack water at high tide, little swell, light wind, weak current and the sun high. Also good from 4:00 pm to 5:00 pm, with slack water at low tide, little swell, light wind and weak 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
- Vivara Fish seen: Mediterranean Chromis, salema, Mediterranean Rainbow Wrasse, Thalassoma pavo 12 mi
- Ashanti Palm 3.9 mi
- Wreck 1.7 mi
- Wreck 3.4 mi
- Wreck 3.8 mi
- Wreck 3.9 mi
- Wreck 4.1 mi
- Zona B 1.7 mi
- Area Marina Protetta Parco Sommerso di Gaiola 1.7 mi
- Centro Sub Campi Flegrei 3.4 mi
- Nerea Scuola Sub 3.7 mi
- Napoli Diving Center 5.7 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. Sites and fish: Reef Life Survey / IMOS NRMN, CC BY 4.0; fish names, Wikidata.
Weather in Posillipo
Now in Posillipo
- Low / high
- 58 / 70 °F
- Rain
- 0.00 in · 0%
- Clouds
- 38%
- Humidity
- 65%
- Dew pointDew point
- 48 °F
- Visibility
- 25 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Moderate · 48
- 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). It barely changes over the next 48 hours. 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 | Partly cloudy | Mainly clear | Mainly clear | Mainly clear | Mainly clear | Partly cloudy | Partly cloudy | Partly cloudy |
| Temperature | 60° | 59° | 58° | 62° | 68° | 70° | 66° | 62° |
| Wind (mph) | 4 NNE | 5 NNE | 4 NNE | 4 NNE | 5 NE | 4 N | 5 NNE | 4 NNE |
| Gusts | 10 | 12 | 10 | 10 | 10 | 11 | 10 | 8 |
| Waves | 0.5 ft | 0.5 ft | 0.4 ft | 0.3 ft | 0.3 ft | 0.3 ft | 0.3 ft | 0.3 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 60° 4 NNE 0.5 ft
- 3:00 am 59° 5 NNE 0.5 ft
- 6:00 am 58° 4 NNE 0.4 ft
- 9:00 am 62° 4 NNE 0.3 ft
- 12:00 pm 68° 5 NE 0.3 ft
- 3:00 pm 70° 4 N 0.3 ft
- 6:00 pm 66° 5 NNE 0.3 ft
- 9:00 pm 62° 4 NNE 0.3 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 58 / 70 °F | 5 mph NNE | 0.5 ft | 11:02 am · 11:03 pm | |
| Fri 30 | 58 / 68 °F | 9 mph NE | 0.6 ft | 11:59 am · 11:55 pm | |
| Sat 31 | 59 / 68 °F | 10 mph NE | 0.9 ft | 1:04 pm | |
| Sun 1 | 55 / 60 °F | 12 mph NE | 1.1 ft | 12:59 am · 2:17 pm | |
| Mon 2 | 49 / 59 °F | 9 mph NNW | 2.4 ft | 2:27 am · 3:29 pm | |
| Tue 3 | 49 / 61 °F | 7 mph E | 2.2 ft | 4:08 am · 4:35 pm | |
| Wed 4 | 49 / 62 °F | 9 mph ENE | 1.3 ft | 5:26 am · 5:32 pm | |
| Thu 5 | 47 / 62 °F | 9 mph ENE | 1.2 ft | 6:21 am · 6:21 pm | |
| Fri 6 | 46 / 60 °F | 10 mph ENE | 1.4 ft | 7:05 am · 7:05 pm | |
| Sat 7 | 41 / 61 °F | 9 mph ENE | 1.4 ft | 7:44 am · 7:44 pm | |
| Sun 8 | 37 / 60 °F | 4 mph NNE | 1.1 ft | 8:20 am · 8:20 pm | |
| Mon 9 | 39 / 62 °F | 4 mph NNW | 0.2 ft | 8:53 am · 8:54 pm | |
| Tue 10 | 45 / 60 °F | 3 mph ENE | 2.2 ft | 9:26 am · 9:26 pm | |
| Wed 11 | 49 / 66 °F | 5 mph SE | 3.2 ft | 10:00 am · 9:58 pm |
- Fri 30 Overcast 58° / 68° 0.6 ft
- Sat 31 Partly cloudy 59° / 68° 0.9 ft
- Sun 1 Light rain 55° / 60° 1.1 ft
- Mon 2 Light rain 49° / 59° 2.4 ft
- Tue 3 Overcast 49° / 61° 2.2 ft
- Wed 4 Mainly clear 49° / 62° 1.3 ft
- Thu 5 Clear sky 47° / 62° 1.2 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 rain on Sunday 1. See the models →
- Normal Today, warmer than normal for late October (+1.9 °F; normal high: 68 °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 12:48 am (local time).
The sun in Posillipo
Sunrise and sunset
- First light 5:30 am
- Full dark 6:04 pm
- Civil dawn 6:02 am
- Civil dusk 5:32 pm
- Solar noon 11:47 am (36° high)
- Daylight 10 h 33 min (−2 min)
- Evening golden hour 4:25 pm
- Full dark 6:04 pm
Golden hour and the day-night map
Today the sun is 92,336,503 mi away and looks 32′ 11″ across.
The moon in Posillipo
Moon phase and position
Today the moon is 226,618 mi away and looks 32′ 45″ across.
Solunar periods
Today's activity: medium- 1:26–3:26 am Major · the moon passes overhead · high activity
- 1:58–3:58 pm Major · the moon passes underfoot · high activity
- 10:04–11:04 am Minor · moonset · medium activity
- 6:52–7:52 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 · 9:29 pmNov 1 in 3 days
- New moon Mon, Nov 9 · 8:03 amNov 9 in 11 days
- First quarter Tue, Nov 17 · 12:48 pmNov 17 in 19 days
- Full moon Tue, Nov 24 · 3:54 pmNov 24 in 26 days
Next perigee (the moon at its closest to Earth): November 25, 223,281 mi away.
Where to fish in Posillipo
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Jetty 1.0 mi
- Jetty 1.2 mi
- Jetty 1.5 mi
- Jetty 1.5 mi
- Jetty 1.6 mi
- Boat ramp 0.6 mi
- Boat ramp 0.9 mi
- Boat ramp 1.8 mi
- Darsena di Pozzuoli 4.3 mi
- Porto di Miseno 6.4 mi
- Malu Articoli Da Pesca 1.4 mi
- Ancora Pesca Sport 1.8 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
Deepens quicklyThe bottom deepens quickly: 33 ft of water 1,050 ft from shore. It reaches 164 ft at 1 mi.
From the shoreline (1.3 mi from Posillipo) out to sea, heading south.
How far from shore
- 16 ft deep600 ft
- 33 ft deep1,050 ft
- 66 ft deep0.6 mi
- 164 ft deep1 mi
For fishing, swimming and diving
- Shore fishing. 33 ft of water just 1,050 ft from shore: a good cast reaches deep water. Current and surf hit harder here.
- Swimming. The water gets deeper little by little, but a few dozen yards out you can no longer stand.
- Diving. Shore diving works here: 33 ft at 1,050 ft and 66 ft at 0.6 mi from shore.
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
Napoli Molo San Vincenzo lighthouse 4.0 mi east
- Light
- 3 white flashes every 15 s · Fl(3) W 15s
- Range
- 22 nautical miles (25 mi)
- Light height
- 82 ft above sea level
- Tower height
- 79 ft
- Built
- 1916
Other lighthouses nearby: Fortino Tenaglia lighthouse (6.2 mi west).
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near PosillipoTides nearby
- Fuorigrotta1.4 mi
- Bagnoli1.7 mi
- Chiaia2.0 mi
- Soccavo2.3 mi
- Vomero2.6 mi
- San Ferdinando2.9 mi
- Montecalvario3.2 mi
- Pianura3.5 mi
- San Giuseppe3.5 mi
- Molo San Vincenzo3.6 mi
Posillipo at a glance
- Town or city of about 22,856 people. Coordinates: 40.813° N, 14.200° E.
- It is 4.5 mi southwest of Naples, the main place in Campania. The sun rises at the same time and sets at the same time than in Naples.
- The nearest tide station, Napoli, is 4.1 mi to the northeast.
- Its coast faces south.
- Beaches and harbors nearby: Marina Molo Luise (1.6 mi), Porticciolo di Santa Lucia (2.8 mi), Molo Angioino (3.6 mi), Molo San Vincenzo (3.6 mi).
Questions about PosillipoQuestions
What time is high tide today in Posillipo?
Today in Posillipo there are high tides at 11:02 am (1.3 ft) and 11:03 pm (1.1 ft) and low tides at 4:19 am and 4:52 pm. Tide coefficient 87.
What time is sunset today in Posillipo?
At 5:03 pm. There is light until the end of civil twilight, at 5:32 pm.
What time is sunrise tomorrow in Posillipo?
At 6:31 am. First light comes at 5:31 am.
What phase is the moon today?
Waning gibbous, 85% illuminated. New moon on Mon, Nov 9 · 8:03 am.
When are the next spring tides?
From November 9 to 11.
What are today's solunar periods?
Major 1:26–3:26 am, Minor 10:04–11:04 am, Major 1:58–3:58 pm, Minor 6:52–7:52 pm. Today's activity is medium.
What's the weather like today in Posillipo?
Overcast, from 58 °F to 70 °F, with a light breeze from the north-northeast (4 mph) and a 0% chance of rain.
How is the sea today in Posillipo?
Smooth (Douglas 2): 0.5 ft waves with a period of 4.5 s from the west-southwest. The water is 70.5 °F.
When is the best time to visit Posillipo?
The best time to visit Posillipo is from June to August: highs of 81 °F to 87 °F, about 3 rainy days a month and 10 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: Napoli 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).