Ganghwa-gun tides today
- Tide now 19.5 ft ↓ falling · low 2:02 pm (-0.1 ft)
- Best time to fish 2:10–3:00 pm good day · 8/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 1.4 ft · 63 °F smooth · 2.9 s from the south-southwest
- Wind · air 10 mph · 46 °F from the SSE, gusts 18 · overcast
- Sun 6:56 am–5:39 pm 10 h 44 min of daylight
- Moon 88% · 7:46 pm waning gibbous · rises at 7:46 pm
- Best time to dive 7:30–8:50 am great day · 9/10
Today in Ganghwa-gun there are high tides at 7:55 am (19.5 ft) and 8:28 pm (22.5 ft) and low tides at 2:00 am and 2:02 pm. Tide coefficient 99. Right now the tide is falling toward the low tide at 2:02 pm. The sun rises at 6:56 am and sets at 5:39 pm: 10 h 44 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 7:46 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 October 27 to 29. The sea is smooth, with 1.4 ft waves. There's a gentle breeze from the south-southeast (10 mph). Overcast, 46 °F.
Fishing in Ganghwa-gun today
Best time to fish
Solunar activity today: medium- Low tide at 2:02 pm
- Major period 2:09–4:09 pm
- Falling pressure (−0.24 inHg in 24 h), light cross-shore wind (10 mph) and some swell (2.2 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 99 (spring tides)
Your day at a glance
The best window, 2:10 pm to 3:00 pm, combines the 2:02 pm low tide, a major period, falling pressure and some swell. Also good from 1:40 am to 3:00 am, with the 2:00 am low tide, a major period and falling pressure. Also good from 7:30 pm to 8:20 pm, with the 8:28 pm high tide, moonrise, falling pressure, a light onshore breeze and some swell.
Beach day in Ganghwa-gun
Is it a beach day?
- Cross-shore breeze (10 mph)
- Calm for swimming: 1.9 ft waves
- Low tide at 2:02 pm: more sand
- Cloudy (98% cloud cover)
- Feels like 48 °F: chilly for the beach
- Rain (0.14 in)
Today, hour by hour
- Swimming Calm · 1.9 ft
1.9 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 63 °F
Cold: ease in slowly.
- Sun & sunscreen UV 1 · SPF 15
Max UV 1 (low): SPF 15 sunscreen.
- Wind 10 mph
Cross-shore breeze (10 mph).
- Tide & sand 2:02 pm
Low tide at 2:00 am and 2:02 pm: that's when there's the most sand. High tide at 7:55 am and 8:28 pm. Coefficient 99 (spring tides): little sand left at high tide.
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 Ganghwa-gun
We don't know of any named beaches within 6.2 mi of Ganghwa-gun.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Ganghwa-gun
Webcams provided by windy.com — add a webcam
Tides in Ganghwa-gun
Today's high and low tides
- ▼ Low tide 2:00 am 1.6 ft
- ▲ High tide 7:55 am 19.5 ft · coef. 99
- ▼ Next low tide 2:02 pm -0.1 ft
- ▲ High tide 8:28 pm 22.5 ft · coef. 97
↓ Falling The tide is falling. 6 h 3 min to low tide at 2:02 pm.
Tide coefficient 99 for the 7:55 am high tide and 97 for the 8:28 pm high tide. Spring tides. The water rises and falls 22.6 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 May 19 (23.1 ft) and the lowest, on April 20 (-0.4 ft).
Semidiurnal: two high and two low tides a day, of similar height.
Heights above chart datum (CD), the zero of that port's nautical charts. 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 (CD)
Tide coefficient and range in October
The biggest tides of the month came from October 27 to 29 (coefficient 100, 22.8 ft range). The smallest, from October 20 to 21 (coefficient 30, 7.5 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 | 6:56 am · 5:39 pm | Low tide 2:00 am · 1.6 ft | High tide 7:55 am · 19.5 ft | Low tide 2:02 pm · -0.1 ft | High tide 8:28 pm · 22.5 ft | Coef. 99 | 88% | Major periods 1:37 am · 2:09 pm | Medium |
| Fri 30 | 6:57 am · 5:38 pm | Low tide 2:43 am · 2.3 ft | High tide 8:37 am · 18.8 ft | Low tide 2:44 pm · 0.5 ft | High tide 9:13 pm · 21.7 ft | Coef. 93 | 80% | Major periods 2:41 am · 3:14 pm | High |
| Sat 31 | 6:58 am · 5:37 pm | Low tide 3:30 am · 3.3 ft | High tide 9:22 am · 17.7 ft | Low tide 3:31 pm · 1.7 ft | High tide 10:04 pm · 20.4 ft | Coef. 83 | 69% | Major periods 3:45 am · 4:16 pm | Medium |
| Sun 1 | 6:59 am · 5:36 pm | Low tide 4:23 am · 4.6 ft | High tide 10:14 am · 16.5 ft | Low tide 4:25 pm · 3.1 ft | High tide 11:03 pm · 19.0 ft | Coef. 70 | 58% | Major periods 4:46 am · 5:14 pm | Medium |
| Mon 2 | 7:00 am · 5:35 pm | Low tide 5:27 am · 5.7 ft | High tide 11:20 am · 15.3 ft | Low tide 5:32 pm · 4.6 ft | — | Coef. 57 | Last quarter | Major periods 5:41 am · 6:07 pm | Medium |
| Tue 3 | 7:01 am · 5:34 pm | High tide 12:15 am · 17.7 ft | Low tide 6:46 am · 6.4 ft | High tide 12:45 pm · 14.7 ft | Low tide 6:57 pm · 5.7 ft | Coef. 52 | 36% | Major periods 6:32 am · 6:56 pm | Medium |
| Wed 4 | 7:02 am · 5:33 pm | High tide 1:37 am · 17.0 ft | Low tide 8:09 am · 6.1 ft | High tide 2:17 pm · 15.1 ft | Low tide 8:27 pm · 5.8 ft | Coef. 49 | 26% | Major periods 7:20 am · 7:42 pm | Medium |
▲ high tide · ▼ low tide · heights above chart datum (CD). 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 Ganghwa Bridge station (KHOA), 2.3 mi from Ganghwa-gun. Times and heights are its predictions.
Station data attribution: Korea Hydrographic and Oceanographic Agency (해양수산부 국립해양조사원), harmonic constants of the TideBED reference ports (예측조위(타이드베드) 기준항 조화상수, 2025-08-12), station Ganghwa Bridge (강화대교, DT_0032), https://www.data.go.kr/data/15145395/fileData.do. Free, no restrictions on use (이용허락범위 제한 없음). Modified by TidePlanet: M2, S2, K1 and O1 from KHOA, the other constituents of those bands inferred from them.
The sea at Ganghwa-gun
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.7 ft
- Significant1.4 ft
- Highest expectedHighest3.1 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 3.1 ft. Before heading out, expect waves of up to 3.1 ft.
Wind on the coast and offshore
Cross-onshore wind. The coast faces east 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 Thursday 29: 2.2 ft with a period of 4 s, from the south-southwest (slight).
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 58.6 °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 7:59 am (local time).
Diving in Ganghwa-gun today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (7:55 am): little current from 7:30 am to 8:20 am
- 0.7 ft swell at 3 s from the southwest: barely any surge
- Light onshore wind (10 mph)
- 0.5 mph current toward the north-northwest, weak (model)
- Daylight
- Slack water today: low tide 2:00 am (1:40–2:20 am), high tide 7:55 am (7:30–8:20 am), low tide 2:02 pm (1:40–2:20 pm) and high tide 8:28 pm (8:10–8:50 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 62.4–63.9 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 6:06 pm. Waning gibbous (88%), rising at 7:46 pm: a bright night.
Your diving day at a glance
The best window, 7:30 am to 8:50 am, combines slack water at high tide, little swell, light wind and weak current. Also worth a look from 1:20 pm to 2:40 pm, with slack water at low tide, little swell, light wind and the sun high, though with 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
We have no dive sites, dive shops or wrecks on record within 12 mi of Ganghwa-gun.
If you know one, you can add it to OpenStreetMap and it will show up here after the next update. Missing one? Add it to OpenStreetMap
Sites: © OpenStreetMap contributors (ODbL).
Weather in Ganghwa-gun
Now in Ganghwa-gun
- Low / high
- 40 / 53 °F
- Rain
- 0.20 in · 100%
- Clouds
- 100%
- Humidity
- 68%
- Dew pointDew point
- 36 °F
- Visibility
- 15 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Moderate · 54
- Saharan dust
- No
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: +0.03 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 | Partly cloudy | Overcast | Overcast | Overcast | Light drizzle | Light drizzle | Heavy drizzle | Light drizzle |
| Temperature | 42° | 40° | 44° | 47° | 53° | 52° | 50° | 48° |
| Wind (mph) | 1 ESE | 4 SE | 10 SSE | 10 SSE | 10 SSE | 10 S | 9 SE | 8 SE |
| Gusts | 2 | 7 | 17 | 19 | 20 | 19 | 19 | 17 |
| Waves | 0.4 ft | 0.5 ft | 1.1 ft | 1.6 ft | 1.9 ft | 2.2 ft | 2.2 ft | 1.6 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.02 in | 0.04 in | 0.01 in |
- 9:00 am 47° 10 SSE 1.6 ft
- 12:00 pm 53° 10 SSE 1.9 ft
- 3:00 pm 52° 10 S 2.2 ft
- 6:00 pm 50° 9 SE 2.2 ft
- 9:00 pm 48° 8 SE 1.6 ft
- 12:00 am 48° 8 SSE 1.1 ft
- 3:00 am 48° 2 SE 1.0 ft
- 6:00 am 46° 0 NE 0.9 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 40 / 53 °F | 10 mph SSE | 2.2 ft | 7:55 am · 8:28 pm | |
| Fri 30 | 46 / 64 °F | 12 mph SW | 1.3 ft | 8:37 am · 9:13 pm | |
| Sat 31 | 42 / 53 °F | 10 mph NW | 1.3 ft | 9:22 am · 10:04 pm | |
| Sun 1 | 42 / 50 °F | 6 mph SE | 0.6 ft | 10:14 am · 11:03 pm | |
| Mon 2 | 42 / 61 °F | 12 mph NW | 1.1 ft | 11:20 am | |
| Tue 3 | 37 / 61 °F | 9 mph WSW | 1.4 ft | 12:15 am · 12:45 pm | |
| Wed 4 | 41 / 60 °F | 5 mph E | 1.0 ft | 1:37 am · 2:17 pm | |
| Thu 5 | 45 / 63 °F | 12 mph SW | 0.8 ft | 2:54 am · 3:33 pm | |
| Fri 6 | 35 / 48 °F | 12 mph NW | 0.8 ft | 3:56 am · 4:30 pm | |
| Sat 7 | 33 / 51 °F | 5 mph N | 0.4 ft | 4:46 am · 5:17 pm | |
| Sun 8 | 30 / 45 °F | 15 mph NW | — | 5:28 am · 5:56 pm | |
| Mon 9 | 28 / 46 °F | 8 mph WNW | — | 6:05 am · 6:33 pm | |
| Tue 10 | 37 / 53 °F | 8 mph W | — | 6:39 am · 7:07 pm | |
| Wed 11 | 40 / 59 °F | 11 mph SW | — | 7:13 am · 7:41 pm |
- Fri 30 Light drizzle 46° / 64° 1.3 ft
- Sat 31 Overcast 42° / 53° 1.3 ft
- Sun 1 Light drizzle 42° / 50° 0.6 ft
- Mon 2 Overcast 42° / 61° 1.1 ft
- Tue 3 Light drizzle 37° / 61° 1.4 ft
- Wed 4 Overcast 41° / 60° 1.0 ft
- Thu 5 Light drizzle 45° / 63° 0.8 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.
- Normal Today, cooler than normal for late October (−6.1 °F; normal high: 60 °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 7:59 am (local time).
The sun in Ganghwa-gun
Sunrise and sunset
- First light 5:58 am
- Full dark 6:37 pm
- Civil dawn 6:29 am
- Civil dusk 6:06 pm
- Solar noon 12:18 pm (39° high)
- Daylight 10 h 44 min (−2 min)
- Evening golden hour 5:03 pm
- Full dark 6:37 pm
Golden hour and the day-night map
Today the sun is 92,344,059 mi away and looks 32′ 11″ across.
The moon in Ganghwa-gun
Moon phase and position
Today the moon is 226,480 mi away and looks 32′ 46″ 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
- 10:00–11:00 am Minor · moonset · medium activity
- 7:16–8:16 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 Mon, Nov 2 · 5:29 amNov 2 in 4 days
- New moon Mon, Nov 9 · 4:03 pmNov 9 in 11 days
- First quarter Tue, Nov 17 · 8:48 pmNov 17 in 19 days
- Full moon Tue, Nov 24 · 11:54 pmNov 24 in 26 days
Perigee on October 29, 226,426 mi away, coinciding with the spring tides from October 27 to 29: they will be stronger than usual.
Where to fish in Ganghwa-gun
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
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.
Tides near Ganghwa-gunTides nearby
- Yedam1.9 mi
- Dogam1.9 mi
- Sindaemi1.9 mi
- Sinjidong2.1 mi
- Wolgot2.1 mi
- Yujeongchon2.1 mi
- Amsil6.2 mi
- Aho-dong12 mi
- Incheon23 mi
- Seoul30 mi
Ganghwa-gun at a glance
- Town or city of about 25,535 people. Coordinates: 37.747° N, 126.486° E.
- It is 23 mi northwest of Incheon, the main place in Incheon. The sun rises 1 min later and sets at the same time than in Incheon.
- The nearest tide station, Ganghwa Bridge, is 2.3 mi to the southeast.
- Its coast faces east.
- Beaches and harbors nearby: Deorimi Pogu (2.2 mi).
Questions about Ganghwa-gunQuestions
What time is high tide today in Ganghwa-gun?
Today in Ganghwa-gun there are high tides at 7:55 am (19.5 ft) and 8:28 pm (22.5 ft) and low tides at 2:00 am and 2:02 pm. Tide coefficient 99.
What time is sunset today in Ganghwa-gun?
At 5:39 pm. There is light until the end of civil twilight, at 6:06 pm.
What time is sunrise tomorrow in Ganghwa-gun?
At 6:57 am. First light comes at 5:59 am.
What phase is the moon today?
Waning gibbous, 88% illuminated. New moon on Mon, Nov 9 · 4:03 pm.
When are the next spring tides?
From October 27 to 29, together with the lunar perigee: they will be stronger than usual.
What are today's solunar periods?
Major 1:37–3:37 am, Minor 10:00–11:00 am, Major 2:09–4:09 pm, Minor 7:16–8:16 pm. Today's activity is medium.
What's the weather like today in Ganghwa-gun?
Heavy drizzle, from 40 °F to 53 °F, with a gentle breeze from the south-southeast (10 mph) and a 100% chance of rain.
How is the sea today in Ganghwa-gun?
Smooth (Douglas 2): 1.4 ft waves with a period of 2.9 s from the south-southwest. The water is 63.1 °F.
When is the best time to visit Ganghwa-gun?
The best time to visit Ganghwa-gun is from May to June and in September: highs of 71 °F to 78 °F, about 7 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: Ganghwa Bridge reference port of the Korea Hydrographic and Oceanographic Agency (KHOA, 국립해양조사원): M2, S2, K1 and O1 from its published harmonic constants, free of use restrictions; the other constituents are inferred from those four by TidePlanet. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).