TidePlanet

Today in Biak there are high tides at 9:07 am (2.0 ft) and 8:12 pm (2.5 ft) and low tides at 2:24 am and 2:27 pm. Tide coefficient 92. Right now the tide is rising toward the high tide at 9:07 am. The sun rises at 5:35 am and sets at 5:44 pm: 12 h 9 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 8:48 pm. Major solunar periods run from 12:57 am to 2:57 am and from 1:29 pm to 3:29 pm. The next spring tides arrive from October 27 to 29. The sea is smooth, with 0.9 ft waves. There's a light breeze from the east-southeast (5 mph). Partly cloudy, 85 °F.

Fishing

Fishing in Biak today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: medium
7
Good day · 7 out of 10 1:30–3:30 pm Also 1:20–3:00 am and 8:20–9:10 pm
  • Low tide at 2:27 pm
  • Major period 1:29–3:29 pm
  • Steady pressure (29.83 inHg), light offshore wind (6 mph) and calm sea (0.8 ft waves)
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 92 (spring tides)

Your day at a glance

The best window, 1:30 pm to 3:30 pm, combines the 2:27 pm low tide and a major period. Also good from 1:20 am to 3:00 am, with the 2:24 am low tide and a major period. Also good from 8:20 pm to 9:10 pm, with the 8:12 pm high tide and moonrise.

How it works · Next 7 days · Fishing rules

Beach

Beach day in Biak

Beach forecast, 7 days →

Is it a beach day?

1 good hour
6
Fair beach day · 6 out of 10 3:00–5:00 pm
  • Mostly sunny
  • Feels like 95 °F: hot
  • Offshore breeze (6 mph)
  • Calm for swimming: 0.8 ft waves
  • UV 4 (moderate): SPF 30 sunscreen
  • Water at 87 °F (very warm)

Today, hour by hour

  • Swimming Calm · 0.8 ft

    0.8 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.

  • Water 86 °F

    Very warm: barely refreshing.

  • Sun & sunscreen UV 12 · SPF 50

    Max UV 12 (extreme): SPF 50 sunscreen, reapplied every 2 hours. Seek shade 10:00 am–2:00 pm (very high UV).

  • Wind 6 mph

    Offshore breeze (6 mph).

  • Tide & sand 2:27 pm

    Low tide at 2:24 am and 2:27 pm: that's when there's the most sand. High tide at 9:07 am and 8:12 pm. Coefficient 92 (spring tides): little sand left at high tide.

The best window, 3:00 pm to 5:00 pm, brings sunshine, beach weather, little wind, a calm sea, water at 87 °F and low tide at 2:27 pm, though with a chance of rain.

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 Biak

We don't know of any named beaches within 6.2 mi of Biak.

Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap

Beaches and amenities: © OpenStreetMap contributors (ODbL).

Tides

Tides in Biak

Tides for 7 days →

Today's high and low tides

  • ▼ Low tide 2:24 am -3.6 ft
  • ▼ Low tide 2:27 pm -0.7 ft
  • ▲ High tide 8:12 pm 2.5 ft · coef. 88

↑ Rising The tide is rising. 26 min to high tide at 9:07 am.

Tide coefficient 92 for the 9:07 am high tide and 88 for the 8:12 pm high tide. Spring tides. The water rises and falls 6.1 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 April 19 (2.7 ft) and the lowest, on December 25 (-4.1 ft).

Mixed: two high and two low tides a day, but of quite different heights.

Heights above mean sea level. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. mean sea level

Tide coefficient and range in October

The biggest tides of the month came from October 26 to 28 (coefficient 100, 6.2 ft range). The smallest, on October 19 (coefficient 27, 2.5 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Thu 29 5:35 am · 5:44 pm Low tide 2:24 am · -3.6 ft High tide 9:07 am · 2.0 ft Low tide 2:27 pm · -0.7 ft High tide 8:12 pm · 2.5 ft Coef. 92 88% Major periods 12:57 am · 1:29 pm Medium
Fri 30 5:35 am · 5:44 pm Low tide 3:11 am · -3.5 ft High tide 10:01 am · 1.7 ft Low tide 3:14 pm · -0.5 ft High tide 8:56 pm · 2.2 ft Coef. 81 80% Major periods 2:01 am · 2:33 pm Medium
Sat 31 5:35 am · 5:44 pm Low tide 4:03 am · -3.1 ft High tide 11:02 am · 1.5 ft Low tide 4:11 pm · -0.2 ft High tide 9:48 pm · 1.8 ft Coef. 68 69% Major periods 3:05 am · 3:36 pm Medium
Sun 1 5:35 am · 5:44 pm Low tide 5:03 am · -2.7 ft High tide 12:13 pm · 1.3 ft Low tide 5:31 pm · -0.1 ft High tide 10:57 pm · 1.4 ft Coef. 56 58% Major periods 4:06 am · 4:34 pm Medium
Mon 2 5:35 am · 5:44 pm Low tide 6:14 am · -2.2 ft High tide 1:29 pm · 1.3 ft Low tide 7:14 pm · -0.2 ft — Coef. 49 Last quarter Major periods 5:01 am · 5:28 pm Medium
Tue 3 5:35 am · 5:44 pm High tide 12:34 am · 1.1 ft Low tide 7:32 am · -1.9 ft High tide 2:35 pm · 1.5 ft Low tide 8:45 pm · -0.7 ft Coef. 50 36% Major periods 5:53 am · 6:17 pm Medium
Wed 4 5:34 am · 5:44 pm High tide 2:20 am · 1.0 ft Low tide 8:44 am · -1.6 ft High tide 3:26 pm · 1.8 ft Low tide 9:49 pm · -1.2 ft Coef. 58 26% Major periods 6:40 am · 7:03 pm Low

▲ high tide · ▼ low tide · heights above mean sea level. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.

Where this tide comes from

M · Global model

Biak has no tide station nearby: its tide is calculated with the global FES2022 model, from the nearest model cells offshore (the first one 1.9 mi away). It may differ from the real tide by a few minutes and inches, and more with wind or storms. Heights are above mean sea level, not chart datum, so low tides are negative. Not for navigation.

Model attribution: FES2022 Tide was produced by LEGOS, NOVELTIS and CLS, funded by CNES, and distributed by AVISO (https://doi.org/10.24400/527896/a01-2024.004), AVISO licence (https://www.aviso.altimetry.fr/fileadmin/documents/data/License_Aviso.pdf). Modified by TidePlanet: constants interpolated from the nearest model cells offshore; heights above mean sea level.

How we calculate the tide

Sea and waves

The sea at Biak

7-day waves

Sea stateSea state: smooth

Smooth Douglas 2 · gentle breeze, Beaufort 3
Waves 0.9 ft · 3.0 s from the east-southeast (103°)
Swell 0.6 ft · 2.7 s from the east-southeast
Current 0.2 mph toward the SSW

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

On the coast 5 mph ESE · gusts 13
Offshore (7.6 mi SW)Offshore 12 mph ESE · gusts 16

Cross-shore wind. The coast faces south and the wind blows along the shore: drift and current run parallel to the beach.

Cross-shore Hourly wind →

Wave height, next 7 daysWaves, next 7 days

Waves stay much the same all week. The biggest waves arrive on Thursday 29: 0.9 ft with a period of 3 s, from the east-southeast (smooth).

Water temperature

Water temperature →
Water now86.2 °F
Today 86.0–86.7 °F air: 76 / 89 °F
Satellite (2 days ago) 85.3 °F measured 1.8 mi away

Water temperature changes how fish behave: in very cold or very warm water they feed less. The water warms over the next few days: about 87.4 °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 8:41 am (local time).

Surf

Surf in Biak today

Surf hour by hour and 7 days →

Surf today

Flat
1
Flat · 1 out of 10 12:00–4:00 pm
  • Barely any waves (0.6 ft sets): flat
  • Light offshore wind (6 mph): it holds up and grooms the waves
  • Falling tide (low tide at 2:27 pm)

It’s flat today: almost no waves reach this coast.

Surf at the shore 0.4–0.6 ft average – sets
Swell 0.5 ft 2 s · SE · 0 kJ
Wind 6 mph ENE · offshore
Water and wetsuit 86.0 °F Boardshorts
  • Light: First light 5:14 am · sunrise 5:35 am · sunset 5:44 pm · last light 6:05 pm
  • Tide: low 2:24 am (-3.6 ft), high 9:07 am (2.0 ft), low 2:27 pm (-0.7 ft) and high 8:12 pm (2.5 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 86.0 °F: boardshorts or a swimsuit and a rash guard.
  • Energy: 0 kJ · Low power

Today’s surf at a glance

The best window, 12:00 pm to 4:00 pm, 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.

How it’s calculated · Next 7 days

Diving

Diving in Biak today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: good
10
Great day · 10 out of 10 8:30–10:10 am Also 1:50–2:40 pm
  • Slack water around high tide (9:07 am): little current from 8:40 am to 9:30 am
  • 0.6 ft swell at 3 s from the east-southeast: barely any surge
  • Light cross-shore wind (5 mph)
  • 0.2 mph current toward the south-southwest, weak (model)
  • Sun high: more light underwater
Swell 0.6 ft 3 s · from the ESE
Likely visibility Good Snorkeling: good
Water and suit 86.0 °F Shorty or a rash guard
Current 0.2 mph toward the SSW
  • Slack water today: low tide 2:24 am (2:09–2:40 am), high tide 9:07 am (8:40–9:30 am), low tide 2:27 pm (2:00–3:00 pm) and high tide 8:12 pm (7:50–8:30 pm)
  • Likely visibility: good. Rain (0.69 in) over the last few days has stirred up the water. Based on the last 24 hours of data.
  • Water at 86.0 °F: a shorty or a rash guard.
  • Snorkeling: good, calm sea and light wind.
  • Night dive: dark from 6:05 pm. Waning gibbous (88%), rising at 8:48 pm: a bright night.

Your diving day at a glance

The best window, 8:30 am to 10:10 am, combines slack water at high tide, little swell, light wind, weak current and the sun high. Also worth a look from 1:50 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.

How it works · Next 7 days

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

Weather in Biak

14-day weather

Now in Biak

Now 85 °F Partly cloudy · feels like 96 °F · 76 / 89 °F
Low / high
76 / 89 °F
Rain
0.05 in · 88%
Clouds
72%
Humidity
80%
Dew pointDew point
78 °F
Visibility
15 mi
UV indexUV
5 · moderate
Air qualityAir
Fair · 26
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 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky OvercastOvercastPartly cloudyPartly cloudyLight drizzleLight drizzleClearClear
Temperature 77°76°77°85°89°86°79°78°
Wind (mph) 5 E3 E4 E5 ESE6 E6 NE3 ENE4 NE
Gusts 75614161786
Waves 0.5 ft0.7 ft0.8 ft0.9 ft0.9 ft0.8 ft0.7 ft0.5 ft
Rain 0.00 in0.00 in0.00 in0.00 in0.01 in0.01 in0.00 in0.00 in
  • 9:00 am 85° 5 ESE 0.9 ft
  • 12:00 pm 89° 6 E 0.9 ft
  • 3:00 pm 86° 6 NE 0.8 ft
  • 6:00 pm 79° 3 ENE 0.7 ft
  • 9:00 pm 78° 4 NE 0.5 ft
  • 12:00 am 78° 5 NE 0.4 ft
  • 3:00 am 77° 2 SSE 0.5 ft
  • 6:00 am 77° 4 SSE 0.5 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 29 Light drizzle 76 / 89 °F 6 mph ENE 0.9 ft 9:07 am · 8:12 pm
Fri 30 Light drizzle 77 / 88 °F 5 mph ESE 0.6 ft 10:01 am · 8:56 pm
Sat 31 Drizzle 74 / 88 °F 4 mph ESE 0.5 ft 11:02 am · 9:48 pm
Sun 1 Light drizzle 73 / 89 °F 6 mph ENE 0.3 ft 12:13 pm · 10:57 pm
Mon 2 Drizzle 71 / 87 °F 5 mph ENE 0.3 ft 1:29 pm
Tue 3 Light drizzle 71 / 90 °F 3 mph ESE 0.3 ft 12:34 am · 2:35 pm
Wed 4 Overcast 74 / 88 °F 4 mph NNE 0.3 ft 2:20 am · 3:26 pm
Thu 5 Light showers 74 / 83 °F 4 mph NE 0.2 ft 3:44 am · 4:07 pm
Fri 6 Light drizzle 73 / 85 °F 5 mph NW 0.1 ft 4:48 am · 4:43 pm
Sat 7 Light showers 72 / 85 °F 3 mph ESE 0.3 ft 5:40 am · 5:16 pm
Sun 8 Drizzle 73 / 83 °F 4 mph ENE 0.9 ft 6:25 am · 5:47 pm
Mon 9 Heavy drizzle 74 / 82 °F 6 mph ENE 1.2 ft 7:06 am · 6:17 pm
Tue 10 Drizzle 74 / 86 °F 5 mph ENE 0.7 ft 7:44 am · 6:46 pm
Wed 11 Drizzle 74 / 86 °F 4 mph NE 0.3 ft 8:20 am · 7:15 pm
  • Fri 30 Light drizzle 77° / 88° 0.6 ft
  • Sat 31 Drizzle 74° / 88° 0.5 ft
  • Sun 1 Light drizzle 73° / 89° 0.3 ft
  • Mon 2 Drizzle 71° / 87° 0.3 ft
  • Tue 3 Light drizzle 71° / 90° 0.3 ft
  • Wed 4 Overcast 74° / 88° 0.3 ft
  • Thu 5 Light showers 74° / 83° 0.2 ft
See all 14 days →

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 today. See the models →
  • Outlook Next few weeks, compared with normal: normal temperatures, a bit drier and a slightly warmer sea. See the outlook →
  • Normal Today, normal highs for late October (88 °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 8:41 am (local time).

Sun

The sun in Biak

Sunrise and sunset →

Sunrise and sunset

Rises 5:35 am in the ESE (103°)ESE
Sets 5:44 pm in the WSW (256°)WSW
  • First light 4:49 am
  • Full dark 6:30 pm
  • Civil dawn 5:14 am
  • Civil dusk 6:05 pm
  • Solar noon 11:39 am (78° high)
  • Daylight 12 h 9 min (+0 min)
  • Evening golden hour 5:16 pm
  • Full dark 6:30 pm

Golden hour and the day-night map

Morning golden hour5:35–6:03 am
Evening golden hour5:16–5:44 pm
Biak

Today the sun is 92,344,706 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in Biak

The moon for 7 days →

Moon phase and position

Waning gibbous · 88% 88% illuminated · 18.5 days old New moon on Mon, Nov 9 · 4:03 pm
Rises 8:48 pm in the ENE (62°)ENE
Sets 9:14 am tomorrow · in the WNW (298°) · set at 8:09 am
Transit 1:57 am overhead
Visible 12 h 26 min from 8:48 pm to 9:14 am

Today the moon is 226,480 mi away and looks 32′ 46″ across.

Solunar periods

Today's activity: medium
  • 12:57–2:57 am Major · the moon passes overhead · high activity
  • 1:29–3:29 pm Major · the moon passes underfoot · high activity
  • 7:39–8:39 am Minor · moonset · medium activity
  • 8:18–9:18 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.

Place

Where to fish in Biak

All places in Papúa →

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.

Water depth

Gentle slope

The bottom slopes gently: 16 ft deep 0.4 mi from shore and 33 ft at 0.45 mi. It reaches 164 ft at 0.8 mi.

From the shoreline (0.6 mi from Biak) out to sea, heading south.

How far from shore

  • 16 ft deep0.4 mi
  • 33 ft deep0.45 mi
  • 66 ft deep0.55 mi
  • 164 ft deep0.8 mi

For fishing, swimming and diving

  • Shore fishing. Shallow, gradual bottom (16 ft at 0.4 mi): cast far from the beach and fish the high tide, when there is more water close in.
  • Swimming. A very gentle way in with plenty of shallow water, good for kids. At low tide the water can be far out.
  • Diving. Shore diving works here: 33 ft at 0.45 mi and 66 ft at 0.55 mi from shore.

Rough estimate: here the data comes in cells of about 0.3 mi and misses details near shore (rocks, sandbars, small coves). The profile is turned slightly from the coast so it does not run into an island or a headland.

Source: NOAA ETOPO 2022 (CC0), cells of about 0.3 mi; depth below mean sea level. For reference only: not for navigation or anchoring.

Tides near BiakTides nearby

All places in Papúa, A to Z (20) → Biak Island tides →

Biak at a glance

  • Town or city of about 41,731 people. Coordinates: 1.177° S, 136.082° E.
  • It is 334 mi west of Jayapura, the main place in Papúa. The sun rises 20 min later and sets 17 min later than in Jayapura.
  • Its coast faces south.

Questions about BiakQuestions

What time is high tide today in Biak?

Today in Biak there are high tides at 9:07 am (2.0 ft) and 8:12 pm (2.5 ft) and low tides at 2:24 am and 2:27 pm. Tide coefficient 92.

What time is sunset today in Biak?

At 5:44 pm. There is light until the end of civil twilight, at 6:05 pm.

What time is sunrise tomorrow in Biak?

At 5:35 am. First light comes at 4:49 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 12:57–2:57 am, Minor 7:39–8:39 am, Major 1:29–3:29 pm, Minor 8:18–9:18 pm. Today's activity is medium.

What's the weather like today in Biak?

Light drizzle, from 76 °F to 89 °F, with a light breeze from the east-southeast (5 mph) and a 88% chance of rain.

How is the sea today in Biak?

Smooth (Douglas 2): 0.9 ft waves with a period of 3.0 s from the east-southeast. The water is 86.2 °F.

When is the best time to visit Biak?

Any time of year is good for Biak: highs range from 85 °F to 88 °F through the year.

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: global FES2022 model (AVISO/CNES), licensed AVISO; constants for this place computed by TidePlanet from the nearest model cells offshore. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).

Spotted a mistake? Tell us · How we calculate the tide

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