TidePlanet

Today in Osiao there are high tides at 7:37 am (4.5 ft) and 7:08 pm (5.2 ft) and low tides at 1:11 am and 1:08 pm. Tide coefficient 93. Right now the tide is rising toward the high tide at 7:08 pm. The sun rises at 5:37 am and sets at 5:19 pm: 11 h 42 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 8:07 pm. Major solunar periods run from 12:47 am to 2:47 am and from 1:19 pm to 3:19 pm. The next spring tides arrive from October 27 to 29. The sea is slight, with 2.4 ft waves. There's a light breeze from the east-northeast (6 mph). Light drizzle, 81 °F.

Fishing

Fishing in Osiao today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: medium
8
Good day · 8 out of 10 1:20–2:10 pm Also 12:50–2:10 am and 8:00–8:40 am
  • Low tide at 1:08 pm
  • Major period 1:19–3:19 pm
  • Steady pressure (29.91 inHg), light onshore wind (9 mph) and some swell (2.5 ft waves) to stir the water
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 93 (spring tides)

Your day at a glance

The best window, 1:20 pm to 2:10 pm, combines the 1:08 pm low tide, a major period, a light onshore breeze and some swell. Also good from 12:50 am to 2:10 am, with the 1:11 am low tide, a major period, a light onshore breeze and some swell. Also good from 8:00 am to 8:40 am, with the 7:37 am high tide, moonset, a light onshore breeze and some swell.

Species with the most records nearby: narrow-barred Spanish mackerel, cobia, bigeye tuna and dogtooth tuna. What you can catch

How it works · Next 7 days

Beach

Beach day in Osiao

Beach forecast, 7 days →

Is it a beach day?

3
Poor beach day · 3 out of 10 2:00–4:00 pm
  • Feels like 91 °F: beach weather
  • Onshore breeze (9 mph)
  • Calm for swimming: 2.5 ft waves
  • UV 4 (moderate): SPF 30 sunscreen
  • Water at 86 °F (very warm)
  • Low tide at 1:08 pm: more sand

Today, hour by hour

  • Swimming Calm · 2.5 ft

    2.5 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 9 · SPF 50

    Max UV 9 (very high): SPF 50 sunscreen, reapplied every 2 hours. Seek shade 11:00 am–1:00 pm (very high UV).

  • Wind 9 mph

    Onshore breeze (9 mph).

  • Tide & sand 1:11 am

    Low tide at 1:11 am and 1:08 pm: that's when there's the most sand. High tide at 7:37 am and 7:08 pm. Coefficient 93 (spring tides): little sand left at high tide.

The best window, 2:00 pm to 4:00 pm, brings beach weather, little wind, a calm sea, water at 86 °F and low tide at 1:08 pm, though with clouds and 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 Osiao

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

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).

Tides

Tides in Osiao

Tides for 7 days →

Today's high and low tides

  • ▼ Low tide 1:11 am -1.1 ft
  • ▲ High tide 7:37 am 4.5 ft · coef. 93
  • ▼ Low tide 1:08 pm 1.1 ft

↑ Rising The tide is rising. 2 h 24 min to high tide at 7:08 pm.

Tide coefficient 93 for the 7:37 am high tide and 88 for the 7:08 pm high tide. Spring tides. The water rises and falls 6.3 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 August 14 (5.5 ft) and the lowest, on December 25 (-1.6 ft).

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

Heights above mean lower low water (MLLW), the zero of US 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. MLLW

Tide coefficient and range in October

The biggest tides of the month came from October 26 to 27 (coefficient 104, 6.4 ft range). The smallest, on October 19 (coefficient 26, 2.0 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Thu 29 5:37 am · 5:19 pm Low tide 1:11 am · -1.1 ft High tide 7:37 am · 4.5 ft Low tide 1:08 pm · 1.1 ft High tide 7:08 pm · 5.2 ft Coef. 93 88% Major periods 12:47 am · 1:19 pm Medium
Fri 30 5:37 am · 5:18 pm Low tide 1:56 am · -0.8 ft High tide 8:26 am · 4.1 ft Low tide 1:51 pm · 1.4 ft High tide 7:52 pm · 4.9 ft Coef. 81 79% Major periods 1:52 am · 2:24 pm Medium
Sat 31 5:37 am · 5:18 pm Low tide 2:48 am · -0.3 ft High tide 9:24 am · 3.8 ft Low tide 2:43 pm · 1.7 ft High tide 8:46 pm · 4.4 ft Coef. 65 69% Major periods 2:56 am · 3:26 pm Medium
Sun 1 5:38 am · 5:17 pm Low tide 3:49 am · 0.1 ft High tide 10:35 am · 3.5 ft Low tide 3:55 pm · 2.0 ft High tide 10:00 pm · 3.9 ft Coef. 51 58% Major periods 3:56 am · 4:24 pm Medium
Mon 2 5:38 am · 5:17 pm Low tide 5:05 am · 0.6 ft High tide 12:00 pm · 3.5 ft Low tide 5:40 pm · 2.0 ft High tide 11:42 pm · 3.6 ft Coef. 43 Last quarter Major periods 4:52 am · 5:18 pm Medium
Tue 3 5:38 am · 5:17 pm Low tide 6:30 am · 0.8 ft High tide 1:19 pm · 3.7 ft Low tide 7:24 pm · 1.6 ft — Coef. 45 36% Major periods 5:43 am · 6:07 pm Medium
Wed 4 5:39 am · 5:16 pm High tide 1:26 am · 3.7 ft Low tide 7:45 am · 0.8 ft High tide 2:17 pm · 4.1 ft Low tide 8:35 pm · 1.1 ft Coef. 56 26% Major periods 6:30 am · 6:53 pm Low

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

Where this tide comes from

B · Nearby station

Osiao has no station of its own, so we use the tide at Legazpi (TICON-4), 16 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

How we calculate the tide

Sea and waves

The sea at Osiao

7-day waves

Sea stateSea state: slight

Slight Douglas 3 · gentle breeze, Beaufort 3
Waves 2.4 ft · 7.0 s from the east (79°)
Swell 1.9 ft · 5.0 s from the east
Current 0.3 mph toward the WSW

The waves you may find

  • Most commonMost common1.2 ft
  • Significant2.4 ft
  • Highest expectedHighest4.9 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 4.9 ft. Before heading out, expect waves of up to 4.9 ft.

Wind on the coast and offshore

On the coast 6 mph ENE · gusts 21
Offshore (19 mi ESE)Offshore 9 mph ENE · gusts 14

Onshore wind. The coast faces east and the wind blows straight in from the sea: more surf and backwash at the shore, and bait and boats drift toward land.

Onshore Hourly wind →

Wave height, next 7 daysWaves, next 7 days

Waves stay much the same all week. The biggest waves arrive on Monday 2: 3.5 ft with a period of 12 s, from the east-northeast (slight).

Water temperature

Water temperature →
Water now85.8 °F
Today 85.6–86.0 °F air: 78 / 86 °F
Satellite (2 days ago) 86.4 °F measured 0.6 mi away

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 (+2.5 °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 4:44 pm (local time).

Diving

Diving in Osiao today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: fair
8
Good day · 8 out of 10 12:40–2:10 pm Also 6:50–8:20 am
  • Slack water around low tide (1:08 pm): little current from 12:40 pm to 1:30 pm
  • 2.0 ft swell at 5 s from the east: some surge on the bottom
  • Light onshore wind (9 mph)
  • 0.6 mph current toward the northwest (model)
  • Sun high: more light underwater
Swell 2.0 ft 5 s · from the E
Likely visibility Fair Snorkeling: fair
Water and suit 85.6 °F Shorty or a rash guard
Current 0.6 mph toward the NW
  • Slack water today: low tide 1:11 am (12:50–1:30 am), high tide 7:37 am (7:10–8:00 am), low tide 1:08 pm (12:40–1:30 pm) and high tide 7:08 pm (6:40–7:30 pm)
  • Likely visibility: fair. Swell (up to 2.3 ft at 8 s) and rain (0.26 in) over the last few days have stirred up the water. Based on the last 24 hours of data.
  • Water at 85.6 °F: a shorty or a rash guard.
  • Snorkeling: doable, with some waves or wind.
  • Night dive: dark from 5:40 pm. Waning gibbous (88%), rising at 8:07 pm: a bright night.

Your diving day at a glance

The best window, 12:40 pm to 2:10 pm, combines slack water at low tide, light wind and the sun high, though with current. Also worth a look from 6:50 am to 8:20 am, with slack water at high tide and light wind, 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

We have no dive sites, dive shops or wrecks on record within 12 mi of Osiao.

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

Weather in Osiao

14-day weather

Now in Osiao

Now 81 °F Light drizzle · feels like 90 °F · 78 / 86 °F
Low / high
78 / 86 °F
Rain
0.09 in · 89%
Clouds
83%
Humidity
86%
Dew pointDew point
76 °F
Visibility
15 mi
UV indexUV
0 · low
Air qualityAir
Fair · 23
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 (+0.01 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 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky Light drizzleLight drizzleOvercastOvercastLight drizzleLight drizzleLight drizzleLight drizzle
Temperature 79°78°79°84°85°83°80°79°
Wind (mph) 6 NE5 ENE6 ENE8 ENE9 ENE8 ENE5 ENE5 NE
Gusts 1815172023231813
Waves 2.8 ft2.8 ft2.7 ft2.6 ft2.6 ft2.4 ft2.4 ft2.3 ft
Rain 0.00 in0.00 in0.00 in0.00 in0.01 in0.01 in0.00 in0.00 in
  • 6:00 pm 80° 5 ENE 2.4 ft
  • 9:00 pm 79° 5 NE 2.3 ft
  • 12:00 am 79° 6 NE 2.2 ft
  • 3:00 am 78° 6 ENE 2.2 ft
  • 6:00 am 79° 5 ENE 2.3 ft
  • 9:00 am 85° 7 ENE 2.3 ft
  • 12:00 pm 87° 6 NE 2.3 ft
  • 3:00 pm 85° 6 NE 2.3 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 29 Light drizzle 78 / 86 °F 9 mph ENE 2.8 ft 7:37 am · 7:08 pm
Fri 30 Light drizzle 77 / 87 °F 7 mph NE 2.4 ft 8:26 am · 7:52 pm
Sat 31 Light showers 77 / 83 °F 9 mph NE 2.6 ft 9:24 am · 8:46 pm
Sun 1 Heavy drizzle 76 / 85 °F 7 mph ENE 3.4 ft 10:35 am · 10:00 pm
Mon 2 Light drizzle 77 / 86 °F 8 mph ENE 3.5 ft 12:00 pm · 11:42 pm
Tue 3 Drizzle 76 / 83 °F 7 mph NE 3.5 ft 1:19 pm
Wed 4 Light drizzle 75 / 84 °F 10 mph NE 3.5 ft 1:26 am · 2:17 pm
Thu 5 Overcast 73 / 85 °F 5 mph NNE 3.1 ft 2:41 am · 3:01 pm
Fri 6 Overcast 71 / 85 °F 6 mph NE 2.1 ft 3:38 am · 3:38 pm
Sat 7 Drizzle 76 / 83 °F 10 mph NE 4.4 ft 4:24 am · 4:11 pm
Sun 8 Heavy drizzle 75 / 80 °F 11 mph NE 5.9 ft 5:04 am · 4:42 pm
Mon 9 Drizzle 75 / 85 °F 9 mph NE 6.0 ft 5:41 am · 5:12 pm
Tue 10 Drizzle 76 / 83 °F 11 mph NE 6.5 ft 6:16 am · 5:41 pm
Wed 11 Light drizzle 74 / 85 °F 10 mph NE 6.1 ft 6:50 am · 6:10 pm
  • Fri 30 Light drizzle 77° / 87° 2.4 ft
  • Sat 31 Light showers 77° / 83° 2.6 ft
  • Sun 1 Heavy drizzle 76° / 85° 3.4 ft
  • Mon 2 Light drizzle 77° / 86° 3.5 ft
  • Tue 3 Drizzle 76° / 83° 3.5 ft
  • Wed 4 Light drizzle 75° / 84° 3.5 ft
  • Thu 5 Overcast 73° / 85° 3.1 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.

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 4:44 pm (local time).

Sun

The sun in Osiao

Sunrise and sunset →

Sunrise and sunset

Rises 5:37 am in the ESE (104°)ESE
Sets 5:19 pm in the WSW (256°)WSW
  • First light 4:50 am
  • Full dark 6:05 pm
  • Civil dawn 5:15 am
  • Civil dusk 5:40 pm
  • Solar noon 11:28 am (63° high)
  • Daylight 11 h 42 min (−1 min)
  • Evening golden hour 4:50 pm
  • Full dark 6:05 pm

Golden hour and the day-night map

Morning golden hour5:37–6:06 am
Evening golden hour4:50–5:19 pm
Osiao

Today the sun is 92,343,890 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in Osiao

The moon for 7 days →

Moon phase and position

Waning gibbous · 88% 88% illuminated · 18.5 days old New moon on Mon, Nov 9 · 3:03 pm
Rises 8:07 pm in the ENE (61°)ENE
Sets 9:36 am tomorrow · in the WNW (298°) · set at 8:31 am
Transit 1:47 am overhead
Visible 13 h 29 min from 8:07 pm to 9:36 am

Today the moon is 226,493 mi away and looks 32′ 46″ across.

Solunar periods

Today's activity: medium
  • 12:47–2:47 am Major · the moon passes overhead · high activity
  • 1:19–3:19 pm Major · the moon passes underfoot · high activity
  • 8:01–9:01 am Minor · moonset · medium activity
  • 7:37–8:37 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.

Place

Where to fish in Osiao

All places in Bicol →

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 OsiaoTides nearby

All places in Bicol, A to Z (755) →

Osiao at a glance

  • Town or city of about 2,737 people. Coordinates: 13.091° N, 123.981° E.
  • It is 17 mi east of Legaspi, the main place in Bicol. The sun rises 1 min earlier and sets 1 min earlier than in Legaspi.
  • The nearest tide station, Legazpi, is 16 mi to the west.
  • Its coast faces east.

Questions about OsiaoQuestions

What time is high tide today in Osiao?

Today in Osiao there are high tides at 7:37 am (4.5 ft) and 7:08 pm (5.2 ft) and low tides at 1:11 am and 1:08 pm. Tide coefficient 93.

What time is sunset today in Osiao?

At 5:19 pm. There is light until the end of civil twilight, at 5:40 pm.

What time is sunrise tomorrow in Osiao?

At 5:37 am. First light comes at 4:50 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 12:47–2:47 am, Minor 8:01–9:01 am, Major 1:19–3:19 pm, Minor 7:37–8:37 pm. Today's activity is medium.

What's the weather like today in Osiao?

Light drizzle, from 78 °F to 86 °F, with a light breeze from the east-northeast (6 mph) and a 89% chance of rain.

How is the sea today in Osiao?

Slight (Douglas 3): 2.4 ft waves with a period of 7.0 s from the east. The water is 85.8 °F.

When is the best time to visit Osiao?

The best time to visit Osiao is from March to April: highs of 85 °F to 87 °F, about 12 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: Legazpi 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).

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

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Time Tides, sun and moon
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