Sandu today: waves, weather and sun
- Best time to fish 2:30–4:20 pm average day · 5/10
- Beach day 8:00–11:00 am Good beach day · 7/10
- Waves · water 1.0 ft · 84 °F smooth · 2.7 s from the east-northeast
- Wind · air 9 mph · 76 °F from the E, gusts 17 · light drizzle
- Sun 6:43 am–6:11 pm 11 h 28 min of daylight
- Moon 88% · 8:52 pm waning gibbous · rises at 8:52 pm
- Best time to dive 2:30–5:30 pm great day · 10/10
- Pressure 30.05 inHg rising · steady tomorrow
Today, Thursday, October 29, in Sandu the sun rises at 6:43 am and sets at 6:11 pm: 11 h 28 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 8:52 pm. Major solunar periods run from 1:49 am to 3:49 am and from 2:21 pm to 4:21 pm. The next spring tides arrive from October 27 to 29. The sea is smooth, with 1.0 ft waves. There's a gentle breeze from the east (9 mph). Light drizzle, 76 °F.
Fishing in Sandu today
Best time to fish
Solunar activity today: medium- Major period 2:21–4:21 pm
- Steady pressure (29.97 inHg), light offshore wind (11 mph) and calm sea (1.1 ft waves)
- Waning gibbous: a bit more activity than at the quarters
Your day at a glance
The best window, 2:30 pm to 4:20 pm, lines up with a major period. Also good from 1:50 am to 3:50 am, with a major period. Also good from 6:20 am to 7:10 am, with sunrise.
We don't show the tide for Sandu, so it doesn't count in the rating. How it works · Next 7 days
Beach day in Sandu
Is it a beach day?
3 good hours- Mostly sunny
- Feels like 87 °F: beach weather
- Calm for swimming: 1.0 ft waves
- UV 4 (moderate): SPF 30 sunscreen
- Water at 84 °F (very warm)
- Rain (0.01 in)
Thunderstorms during beach hours: get out of the water and off the sand as soon as you hear thunder.
Today, hour by hour
- Swimming Calm · 1.0 ft
1.0 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 84 °F
Very warm: barely refreshing.
- Sun & sunscreen UV 6 · SPF 30
Max UV 6 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 12 mph
Offshore breeze (12 mph). Watch floats and inflatables: offshore wind carries them out to sea.
- Tide & sand
We don't show the tide for Sandu, so it doesn't count in the rating.
The best window, 8:00 am to 11:00 am, brings sunshine, beach weather, a calm sea and water at 84 °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 Sandu
We don't know of any named beaches within 6.2 mi of Sandu.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Sandu
Webcams provided by windy.com — add a webcam
Tides in Sandu
Tides in Sandu: not available yet
There is no tide station near Sandu, and we can't rely on the global tide model on this coast: for now we don't show its tide.
Meanwhile, see the tide in Haitou · 26 mi
The sun, moon, solunar periods and spring tides on this page do apply to this place.
The sea at Sandu
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.5 ft
- Significant1.0 ft
- Highest expectedHighest2.1 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 2.1 ft. Before heading out, expect waves of up to 2.1 ft.
Wind on the coast and offshore
Cross-offshore wind. The coast faces northwest 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: 1.2 ft with a period of 3 s, from the east-northeast (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 (+3.3 °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 7:50 am (local time).
Surf in Sandu today
Surf today
Flat- Barely any waves (0.5 ft sets): flat
- Light offshore wind (10 mph): it holds up and grooms the waves
- First or last light of the day
It’s flat today: almost no waves reach this coast.
- Light: First light 6:20 am · sunrise 6:43 am · sunset 6:11 pm · last light 6:33 pm
- Tide: We don’t have a reliable tide to show here.
- Water at 84.0 °F: boardshorts or a swimsuit and a rash guard.
- Energy: 1 kJ · Low power
Today’s surf at a glance
The best window, 6:20 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 Sandu today
Diving and snorkeling today
Likely visibility: good- 0.7 ft swell at 3 s from the northeast: barely any surge
- Light offshore wind (10 mph)
- 0.4 mph current toward the west-northwest, weak (model)
- Daylight
- Slack water today: none; the tide doesn't count here
- Likely visibility: good. The sea has been calm and there's been little rain. Based on the last 24 hours of data.
- Water at 84.0 °F: a shorty or a rash guard.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 6:33 pm. Waning gibbous (88%), rising at 8:52 pm: a bright night.
Your diving day at a glance
The best window, 2:30 pm to 5:30 pm, combines little swell, light wind and weak current. Also good from 6:40 am to 8:30 am, with little swell, light wind and weak current. Also worth a look from 9:30 am to 12:30 pm, with little swell, light wind and the sun high, though with current.
We don't have a reliable tide for Sandu, so slack water doesn't count in the rating.
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
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 Sandu
Now in Sandu
- Low / high
- 74 / 85 °F
- Rain
- 0.32 in · 91%
- Clouds
- 52%
- Humidity
- 94%
- Dew pointDew point
- 74 °F
- Visibility
- 15 mi
- UV indexUV
- 1 · low
- Air qualityAir
- Fair · 35
- 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 (+0.04 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 | Mainly clear | Light drizzle | Light drizzle | Light drizzle | Light drizzle | Light showers | Light drizzle | Overcast |
| Temperature | 77° | 76° | 74° | 78° | 85° | 84° | 77° | 76° |
| Wind (mph) | 8 E | 8 E | 11 ENE | 10 E | 12 E | 11 E | 9 E | 9 E |
| Gusts | 14 | 16 | 21 | 19 | 25 | 23 | 19 | 15 |
| Waves | 1.2 ft | 0.9 ft | 0.9 ft | 1.0 ft | 1.1 ft | 1.1 ft | 1.1 ft | 1.0 ft |
| Rain | 0.00 in | 0.02 in | 0.00 in | 0.00 in | 0.01 in | 0.07 in | 0.00 in | 0.00 in |
- 9:00 am 78° 10 E 1.0 ft
- 12:00 pm 85° 12 E 1.1 ft
- 3:00 pm 84° 11 E 1.1 ft
- 6:00 pm 77° 9 E 1.1 ft
- 9:00 pm 76° 9 E 1.0 ft
- 12:00 am 76° 8 E 0.9 ft
- 3:00 am 76° 7 E 0.9 ft
- 6:00 am 76° 8 E 0.7 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave |
|---|---|---|---|---|
| Today · 29 | 74 / 85 °F | 12 mph E | 1.2 ft | |
| Fri 30 | 75 / 88 °F | 10 mph E | 0.9 ft | |
| Sat 31 | 74 / 89 °F | 11 mph ESE | 1.2 ft | |
| Sun 1 | 73 / 88 °F | 8 mph E | 0.7 ft | |
| Mon 2 | 74 / 89 °F | 10 mph E | 1.2 ft | |
| Tue 3 | 75 / 89 °F | 9 mph ESE | 0.9 ft | |
| Wed 4 | 75 / 84 °F | 5 mph E | 0.7 ft | |
| Thu 5 | 75 / 88 °F | 6 mph ESE | 0.6 ft | |
| Fri 6 | 74 / 89 °F | 10 mph ESE | 0.6 ft | |
| Sat 7 | 74 / 89 °F | 8 mph ESE | 1.8 ft | |
| Sun 8 | 74 / 83 °F | 13 mph ENE | 3.8 ft | |
| Mon 9 | 73 / 80 °F | 18 mph NE | 7.0 ft | |
| Tue 10 | 75 / 80 °F | 18 mph ENE | 5.9 ft | |
| Wed 11 | 73 / 83 °F | 12 mph E | 4.1 ft |
- Fri 30 Light drizzle 75° / 88° 0.9 ft
- Sat 31 Clear sky 74° / 89° 1.2 ft
- Sun 1 Light drizzle 73° / 88° 0.7 ft
- Mon 2 Overcast 74° / 89° 1.2 ft
- Tue 3 Showers 75° / 89° 0.9 ft
- Wed 4 Light showers 75° / 84° 0.7 ft
- Thu 5 Light showers 75° / 88° 0.6 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.
- The models Partly agree · medium confidence: unsure about rain today. See the models →
- Outlook Next few weeks, compared with normal: warmer, wetter and a much warmer sea. See the outlook →
- Normal Today, warmer than normal for late October (+3.1 °F; normal high: 82 °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 7:50 am (local time).
The sun in Sandu
Sunrise and sunset
- First light 5:54 am
- Full dark 6:59 pm
- Civil dawn 6:20 am
- Civil dusk 6:33 pm
- Solar noon 12:27 pm (57° high)
- Daylight 11 h 28 min (−1 min)
- Evening golden hour 5:41 pm
- Full dark 6:59 pm
Golden hour and the day-night map
Today the sun is 92,342,895 mi away and looks 32′ 11″ across.
The moon in Sandu
Moon phase and position
Today the moon is 226,493 mi away and looks 32′ 46″ across.
Solunar periods
Today's activity: medium- 1:49–3:49 am Major · the moon passes overhead · high activity
- 2:21–4:21 pm Major · the moon passes underfoot · high activity
- 9:19–10:19 am Minor · moonset · medium activity
- 8:22–9:22 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 · 4:29 amNov 2 in 4 days
- New moon Mon, Nov 9 · 3:03 pmNov 9 in 11 days
- First quarter Tue, Nov 17 · 7:48 pmNov 17 in 19 days
- Full moon Tue, Nov 24 · 10:54 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 Sandu
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- 林湾探秘景观栈桥 5.8 mi
- Jetty 3.2 mi
- Jetty 3.2 mi
- Jetty 3.5 mi
- Jetty 4.0 mi
- Jetty 4.0 mi
- Jetty 4.1 mi
- Jetty 4.7 mi
- Jetty 5.1 mi
- Marina 4.0 mi
- Pai-ma-ching Chiao;Baimajing Gang 4.9 mi
- 洋浦港 5.9 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 SanduTides nearby
All places in Hainan, A to Z (77) → Hainan Island tides →Sandu at a glance
- Town or city of about 76,757 people. Coordinates: 19.789° N, 109.215° E.
- It is 108 mi north of Sanya, the main place in Hainan. The sun rises 3 min later and sets at the same time than in Sanya.
- Its coast faces northwest.
- Beaches and harbors nearby: Shentou Port (3.7 mi).
Questions about SanduQuestions
What time is sunset today in Sandu?
At 6:11 pm. There is light until the end of civil twilight, at 6:33 pm.
What time is sunrise tomorrow in Sandu?
At 6:43 am. First light comes at 5:55 am.
What phase is the moon today?
Waning gibbous, 88% illuminated. New moon on Mon, Nov 9 · 3:03 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 1:49–3:49 am, Minor 9:19–10:19 am, Major 2:21–4:21 pm, Minor 8:22–9:22 pm. Today's activity is medium.
What's the weather like today in Sandu?
Light showers, from 74 °F to 85 °F, with a gentle breeze from the east (9 mph) and a 91% chance of rain.
How is the sea today in Sandu?
Smooth (Douglas 2): 1.0 ft waves with a period of 2.7 s from the east-northeast. The water is 84.0 °F.
When is the best time to visit Sandu?
The best time to visit Sandu is from November to March: highs of 71 °F to 80 °F, about 5 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
Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).