Hạ Long tides today
- Tide now 11.1 ft ↓ falling · low 6:47 pm (1.7 ft)
- Best time to fish 5:50–7:50 pm average day · 6/10
- Beach day 7:00–10:00 am Good beach day · 7/10
- Waves · water 0.9 ft · 85 °F smooth · 3.1 s from the east-southeast
- Wind · air 7 mph · 82 °F from the ENE, gusts 15 · light drizzle
- Sun 5:53 am–5:18 pm 11 h 25 min of daylight
- Moon 87% · 7:58 pm waning gibbous · rises at 7:58 pm
- Best time to dive 4:20–5:20 pm great day · 9/10
Today in Hạ Long there is high tide at 5:05 am (12.5 ft) and low tide at 6:47 pm. Tide coefficient 103. Right now the tide is falling toward the low tide at 6:47 pm. The sun rises at 5:53 am and sets at 5:18 pm: 11 h 25 min of daylight. The moon is 87% illuminated (waning gibbous) and rises at 7:58 pm. Major solunar periods run from 12:58 am to 2:58 am and from 1:30 pm to 3:30 pm. The next spring tides arrive from November 10 to 12. The sea is smooth, with 0.9 ft waves. There's a light breeze from the east-northeast (7 mph). Light drizzle, 82 °F.
Fishing in Hạ Long today
Best time to fish
Solunar activity today: medium- High tide at 5:05 am, coefficient 103
- Sunrise at 5:53 am
- Steady pressure (30.03 inHg), light offshore wind (5 mph) and calm sea (0.7 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 103 (big spring tides)
Your day at a glance
The best window, 4:00 am to 6:00 am, combines the 5:05 am high tide and sunrise. Also good from 5:50 pm to 7:50 pm, with the 6:47 pm low tide and moonrise. Also good from 1:30 pm to 3:30 pm, with a major period.
Beach day in Hạ Long
Is it a beach day?
3 good hours- Mostly sunny
- Feels like 89 °F: beach weather
- Calm for swimming: 0.9 ft waves
- Water at 85 °F (very warm)
- Rain (0.01 in)
- Light offshore wind (9 mph): it blows floats and inflatables out to sea
Today, hour by hour
- Swimming Calm · 0.9 ft
0.9 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 85 °F
Very warm: barely refreshing.
- Sun & sunscreen UV 5 · SPF 30
Max UV 5 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 11 mph
Offshore breeze (11 mph). Watch floats and inflatables: offshore wind carries them out to sea.
- Tide & sand 6:47 pm
Low tide at 6:47 pm: that's when there's the most sand. High tide at 5:05 am. Coefficient 103 (spring tides): little sand left at high tide.
The best window, 7:00 am to 10:00 am, brings sunshine, beach weather, a calm sea and water at 85 °F, though with rain and light offshore wind.
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 Hạ Long
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Bãi Cháy 2.0 mi · W
- Bãi tắm công cộng Hòn Gai 3.6 mi · E
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).
Webcams near Hạ Long
Webcams provided by windy.com — add a webcam
Tides in Hạ Long
Today's high and low tides
- ▲ High tide 5:05 am 12.5 ft · coef. 103
- ▼ Next low tide 6:47 pm 1.7 ft
↓ Falling The tide is falling. 10 h 49 min to low tide at 6:47 pm.
Tide coefficient 103 for the 5:05 am high tide. Big spring tides. The water rises and falls 10.8 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 November 28 (13.8 ft) and the lowest, on June 17 (-0.1 ft).
Diurnal: one high and one low tide a day most days.
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 come on October 31 (coefficient 119, 12.2 ft range). The smallest, on October 25 (coefficient 20, 1.0 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 5:53 am · 5:18 pm | High tide 5:05 am · 12.5 ft | Low tide 6:47 pm · 1.7 ft | Coef. 103 | 87% | Major periods 12:58 am · 1:30 pm | Medium |
| Fri 30 | 5:53 am · 5:17 pm | High tide 6:11 am · 13.1 ft | Low tide 7:38 pm · 1.2 ft | Coef. 115 | 79% | Major periods 2:02 am · 2:35 pm | Medium |
| Sat 31 | 5:54 am · 5:17 pm | High tide 7:22 am · 13.3 ft | Low tide 8:29 pm · 1.1 ft | Coef. 119 | 68% | Major periods 3:06 am · 3:37 pm | Medium |
| Sun 1 | 5:54 am · 5:16 pm | High tide 8:35 am · 13.2 ft | Low tide 9:21 pm · 1.4 ft | Coef. 117 | 57% | Major periods 4:06 am · 4:35 pm | Medium |
| Mon 2 | 5:55 am · 5:16 pm | High tide 9:49 am · 12.8 ft | Low tide 10:13 pm · 2.1 ft | Coef. 109 | Last quarter | Major periods 5:02 am · 5:28 pm | Medium |
| Tue 3 | 5:55 am · 5:15 pm | High tide 10:58 am · 12.1 ft | Low tide 11:06 pm · 3.1 ft | Coef. 96 | 35% | Major periods 5:53 am · 6:16 pm | Medium |
| Wed 4 | 5:56 am · 5:15 pm | High tide 12:04 pm · 11.1 ft | — | Coef. 78 | 25% | Major periods 6:40 am · 7:02 pm | Low |
▲ 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
Hạ Long has no station of its own, so we use the tide at Hòn Dáu (TICON-4), 26 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: 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 Hạ Long
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.4 ft
- Significant0.9 ft
- Highest expectedHighest1.8 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 1.8 ft. Before heading out, expect waves of up to 1.8 ft.
Wind on the coast and offshore
Cross-offshore wind. The coast faces southwest and the wind comes off the land at an angle: calmer water near the shore, and bait and boats drift out to sea.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Thursday 29: 1.4 ft with a period of 3 s, from the east (smooth).
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 (+3.7 °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 7:58 am (local time).
Diving in Hạ Long today
Diving and snorkeling today
Likely visibility: good- 0.6 ft swell at 2 s from the east-southeast: barely any surge
- Light offshore wind (6 mph)
- 0.2 mph current toward the southwest, weak (model)
- Daylight
- Slack water today: high tide 5:05 am (4:40–5:30 am) and low tide 6:47 pm (6:00–7:20 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 84.4 °F: a shorty or a rash guard.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 5:41 pm. Waning gibbous (87%), rising at 7:58 pm: a bright night.
Your diving day at a glance
The best window, 5:50 am to 6:50 am, combines little swell, light wind and weak current. Also worth a look from 4:20 pm to 5:20 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
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
Sites: © OpenStreetMap contributors (ODbL).
Weather in Hạ Long
Now in Hạ Long
- Low / high
- 76 / 86 °F
- Rain
- 0.18 in · 86%
- Clouds
- 38%
- Humidity
- 73%
- Dew pointDew point
- 72 °F
- Visibility
- 15 mi
- UV indexUV
- 2 · low
- Air qualityAir
- Moderate · 44
- Saharan dust
- No
Pressure and fishing
- ↗ RisingRising · now Anglers say fish bite less for a while
- → SteadySteady Anglers expect normal activity
- ↘ FallingFalling Anglers say fish feed more before the change
Rising now (+0.05 inHg in 3 hours). It barely changes over the next 48 hours. Rising pressure: anglers say fish bite less for a while. 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 | Clear | Clear | Clear sky | Light drizzle | Heavy drizzle | Light drizzle | Light drizzle | Light drizzle |
| Temperature | 78° | 77° | 78° | 85° | 84° | 84° | 80° | 77° |
| Wind (mph) | 5 E | 4 NE | 6 NE | 9 ENE | 11 E | 11 E | 10 E | 7 ENE |
| Gusts | 10 | 9 | 10 | 20 | 23 | 24 | 19 | 14 |
| Waves | 0.7 ft | 0.7 ft | 0.7 ft | 0.9 ft | 1.2 ft | 1.4 ft | 1.2 ft | 1.0 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.04 in | 0.00 in | 0.01 in | 0.00 in |
- 9:00 am 85° 9 ENE 0.9 ft
- 12:00 pm 84° 11 E 1.2 ft
- 3:00 pm 84° 11 E 1.4 ft
- 6:00 pm 80° 10 E 1.2 ft
- 9:00 pm 77° 7 ENE 1.0 ft
- 12:00 am 76° 7 ENE 0.9 ft
- 3:00 am 75° 4 NE 0.8 ft
- 6:00 am 75° 4 NNE 0.7 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 76 / 86 °F | 11 mph ENE | 1.4 ft | 5:05 am | |
| Fri 30 | 75 / 80 °F | 9 mph E | 1.0 ft | 6:11 am | |
| Sat 31 | 76 / 85 °F | 11 mph ESE | 0.9 ft | 7:22 am | |
| Sun 1 | 78 / 86 °F | 11 mph SSE | 1.0 ft | 8:35 am | |
| Mon 2 | 77 / 84 °F | 8 mph ENE | 0.7 ft | 9:49 am | |
| Tue 3 | 74 / 84 °F | 10 mph E | 1.0 ft | 10:58 am | |
| Wed 4 | 77 / 85 °F | 7 mph SE | 0.5 ft | 12:04 pm | |
| Thu 5 | 76 / 84 °F | 6 mph E | 0.4 ft | 1:07 pm | |
| Fri 6 | 75 / 83 °F | 8 mph E | 0.7 ft | 2:20 pm | |
| Sat 7 | 76 / 85 °F | 9 mph E | 1.4 ft | — | |
| Sun 8 | 72 / 81 °F | 13 mph NNE | 3.5 ft | 1:56 am | |
| Mon 9 | 65 / 74 °F | 12 mph NNE | 3.2 ft | 2:55 am | |
| Tue 10 | 67 / 80 °F | 9 mph NE | 3.7 ft | 3:48 am | |
| Wed 11 | 69 / 71 °F | 9 mph NNE | 3.1 ft | 4:40 am |
- Fri 30 Light showers 75° / 80° 1.0 ft
- Sat 31 Light drizzle 76° / 85° 0.9 ft
- Sun 1 Light drizzle 78° / 86° 1.0 ft
- Mon 2 Drizzle 77° / 84° 0.7 ft
- Tue 3 Light drizzle 74° / 84° 1.0 ft
- Wed 4 Light drizzle 77° / 85° 0.5 ft
- Thu 5 Drizzle 76° / 84° 0.4 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 don't agree · low confidence: unsure about rain today. See the models →
- Outlook Next few weeks, compared with normal: warmer and wetter. See the outlook →
- Normal Today, warmer than normal for late October (+5.4 °F; normal high: 81 °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 7:58 am (local time).
The sun in Hạ Long
Sunrise and sunset
- First light 5:04 am
- Full dark 6:07 pm
- Civil dawn 5:30 am
- Civil dusk 5:41 pm
- Solar noon 11:35 am (56° high)
- Daylight 11 h 25 min (−1 min)
- Evening golden hour 4:48 pm
- Full dark 6:07 pm
Golden hour and the day-night map
Today the sun is 92,342,751 mi away and looks 32′ 11″ across.
The moon in Hạ Long
Moon phase and position
Today the moon is 226,507 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 12:58–2:58 am Major · the moon passes overhead · high activity
- 1:30–3:30 pm Major · the moon passes underfoot · high activity
- 8:31–9:31 am Minor · moonset · medium activity
- 7:28–8:28 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 · 3:29 amNov 2 in 4 days
- New moon Mon, Nov 9 · 2:03 pmNov 9 in 11 days
- First quarter Tue, Nov 17 · 6:48 pmNov 17 in 19 days
- Full moon Tue, Nov 24 · 9:54 pmNov 24 in 26 days
Next perigee (the moon at its closest to Earth): October 29, 226,426 mi away.
Where to fish in Hạ Long
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Halong International Cruise Port 0.9 mi
- Marina 5.7 mi
- Đồ câu Halong Tackle 0.1 mi
- Halongfishing 3.6 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.
Tides near Hạ LongTides nearby
- Cẩm Phả14 mi
- Cẩm Phả Mines15 mi
- Cát Bà15 mi
- Thị Trấn Cái Rồng24 mi
- Đố Sơn25 mi
- Haiphong26 mi
- Thị Trấn Tiên Yên34 mi
Hạ Long at a glance
- Town or city of about 270,054 people. Coordinates: 20.950° N, 107.073° E.
- The nearest tide station, Hòn Dáu, is 26 mi to the southwest.
- Its coast faces southwest.
- Beaches and harbors nearby: Port Courbet (2.3 mi), Port of Ha Long (2.4 mi).
Questions about Hạ LongQuestions
What time is high tide today in Hạ Long?
Today in Hạ Long there is high tide at 5:05 am (12.5 ft) and low tide at 6:47 pm. Tide coefficient 103.
What time is sunset today in Hạ Long?
At 5:18 pm. There is light until the end of civil twilight, at 5:41 pm.
What time is sunrise tomorrow in Hạ Long?
At 5:53 am. First light comes at 5:04 am.
What phase is the moon today?
Waning gibbous, 87% illuminated. New moon on Mon, Nov 9 · 2:03 pm.
When are the next spring tides?
From November 10 to 12.
What are today's solunar periods?
Major 12:58–2:58 am, Minor 8:31–9:31 am, Major 1:30–3:30 pm, Minor 7:28–8:28 pm. Today's activity is medium.
What's the weather like today in Hạ Long?
Heavy drizzle, from 76 °F to 86 °F, with a light breeze from the east-northeast (7 mph) and a 86% chance of rain.
How is the sea today in Hạ Long?
Smooth (Douglas 2): 0.9 ft waves with a period of 3.1 s from the east-southeast. The water is 84.6 °F.
When is the best time to visit Hạ Long?
The best time to visit Hạ Long is from October to December and in April: highs of 69 °F to 84 °F, about 6 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: Hòn Dáu 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).