TidePlanet

Today in Dumai there are high tides at 8:55 am (4.4 ft) and 9:09 pm (2.4 ft) and low tides at 1:00 am and 4:23 pm. Tide coefficient 87. Right now the tide is rising toward the high tide at 8:55 am. The sun rises at 5:56 am and sets at 6:00 pm: 12 h 4 min of daylight. The moon is 87% illuminated (waning gibbous) and rises at 9:07 pm. Major solunar periods run from 1:21 am to 3:21 am and from 1:54 pm to 3:54 pm. The next spring tides arrive from November 10 to 12. The sea is smooth, with 0.4 ft waves. There's a light breeze from the south-southwest (4 mph). Light drizzle, 76 °F.

Fishing

Fishing in Dumai today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: medium
5
Average day · 5 out of 10 7:50–8:30 am Also 8:40–9:40 pm and 12:00–1:30 am
  • High tide at 8:55 am, coefficient 87
  • Minor period 8:10–9:10 am (moonset)
  • Steady pressure (29.94 inHg), almost no wind and calm sea (0.4 ft waves)
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 87 (average tides)

Your day at a glance

The best window, 7:50 am to 8:30 am, combines the 8:55 am high tide and moonset. Also good from 8:40 pm to 9:40 pm, with the 9:09 pm high tide and moonrise. Also good from 12:00 am to 1:30 am, with the 1:00 am low tide and a major period.

How it works · Next 7 days · Fishing rules

Beach

Beach day in Dumai

Beach forecast, 7 days →

Is it a beach day?

2
Not a beach day · 2 out of 10 No good beach time today.
  • Feels like 96 °F: hot
  • Almost no wind
  • Calm for swimming: 0.4 ft waves
  • Low tide at 4:23 pm: more sand
  • Cloudy (99% cloud cover)
  • Thunderstorms: get out of the water and off the beach

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 · 0.4 ft

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

  • Water

    No water temperature data.

  • 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 4 mph

    Almost no wind.

  • Tide & sand 4:23 pm

    Low tide at 1:00 am and 4:23 pm: that's when there's the most sand. High tide at 8:55 am and 9:09 pm.

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 Dumai

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

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 Dumai

Tides for 7 days →

Today's high and low tides

  • ▼ Low tide 1:00 am -2.8 ft
  • ▼ Low tide 4:23 pm -1.6 ft
  • ▲ High tide 9:09 pm 2.4 ft · coef. 82

↑ Rising The tide is rising. 3 h 5 min to high tide at 8:55 am.

Tide coefficient 87 for the 8:55 am high tide and 82 for the 9:09 pm high tide. Average coefficient. The water rises and falls 7.1 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 18 (5.0 ft) and the lowest, on September 11 (-3.5 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 9 to 11 (coefficient 102, 8.0 ft range). The smallest, on October 20 (coefficient 26, 2.1 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Thu 29 5:56 am · 6:00 pm Low tide 1:00 am · -2.8 ft High tide 8:55 am · 4.4 ft Low tide 4:23 pm · -1.6 ft High tide 9:09 pm · 2.4 ft Coef. 87 87% Major periods 1:21 am · 1:54 pm Medium
Fri 30 5:56 am · 6:00 pm Low tide 1:26 am · -2.6 ft High tide 9:34 am · 3.7 ft Low tide 5:19 pm · -1.2 ft High tide 9:46 pm · 2.1 ft Coef. 76 79% Major periods 2:26 am · 2:58 pm Medium
Sat 31 5:56 am · 6:00 pm Low tide 2:00 am · -2.1 ft High tide 10:15 am · 2.9 ft Low tide 6:09 pm · -1.0 ft High tide 10:27 pm · 1.7 ft Coef. 63 68% Major periods 3:30 am · 4:00 pm Medium
Sun 1 5:56 am · 6:00 pm Low tide 5:59 am · -1.5 ft High tide 11:04 am · 2.0 ft Low tide 6:57 pm · -0.8 ft High tide 11:20 pm · 1.3 ft Coef. 50 57% Major periods 4:30 am · 4:58 pm Medium
Mon 2 5:56 am · 5:59 pm Low tide 7:09 am · -1.5 ft High tide 12:21 pm · 1.1 ft Low tide 7:47 pm · -0.9 ft — Coef. 42 Last quarter Major periods 5:25 am · 5:51 pm Medium
Tue 3 5:56 am · 5:59 pm High tide 1:03 am · 1.2 ft Low tide 8:15 am · -1.8 ft High tide 3:50 pm · 0.9 ft Low tide 8:38 pm · -1.1 ft Coef. 49 35% Major periods 6:16 am · 6:40 pm Medium
Wed 4 5:56 am · 5:59 pm High tide 3:16 am · 1.8 ft Low tide 9:19 am · -2.2 ft High tide 4:41 pm · 1.4 ft Low tide 9:28 pm · -1.5 ft Coef. 64 25% Major periods 7:03 am · 7:25 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

Dumai has no tide station nearby: its tide is calculated with the global FES2022 model, from the nearest model cells offshore (the first one 2.4 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 Dumai

7-day waves

Sea stateSea state: smooth

Smooth Douglas 2 · light breeze, Beaufort 2
Waves 0.4 ft · 1.5 s from the southwest (230°)
Wind waves — —

The waves you may find

  • Most commonMost common0.2 ft
  • Significant0.4 ft
  • Highest expectedHighest0.9 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 0.9 ft. Before heading out, expect waves of up to 0.9 ft.

Wind on the coast and offshore

On the coast 4 mph SSW · gusts 9
Offshore (22 mi ENE)Offshore 6 mph SW · gusts 14

Offshore wind. The coast faces north and the wind blows from land out to sea: calm shore and clean waves, but watch the drift out to sea.

Offshore Hourly wind →

Wave height, next 7 daysWaves, next 7 days

Waves stay much the same all week. The biggest waves arrive on Monday 2: 1.0 ft with a period of 2 s, from the east (smooth).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 5:50 am (local time).

Diving

Diving in Dumai today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: fair
9
Great day · 9 out of 10 12:50–3:30 pm
  • Slack water around low tide (4:23 pm): little current from 3:00 pm to 4:50 pm
  • 0.3 ft surface waves: easy entry and exit
  • Almost no wind
  • Sun high: more light underwater
Swell 0.3 ft —
Likely visibility Fair Snorkeling: good
Water and suit — —
Current — —
  • Slack water today: low tide 1:00 am (12:40–1:40 am), high tide 8:55 am (8:40–9:10 am), low tide 4:23 pm (3:00–4:50 pm) and high tide 9:09 pm (8:54–9:24 pm)
  • Likely visibility: fair. Rain (1.04 in) over the last few days has stirred up the water. Based on the last 24 hours of data.
  • Snorkeling: good, calm sea and light wind.
  • Night dive: dark from 6:21 pm. Waning gibbous (87%), rising at 9:07 pm: a bright night.

Your diving day at a glance

The best window, 12:50 pm to 3:30 pm, combines slack water at low tide, small waves, light wind and the sun high.

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 Dumai.

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 Dumai

14-day weather

Now in Dumai

Now 76 °F Light drizzle · feels like 85 °F · 75 / 85 °F
Low / high
75 / 85 °F
Rain
0.47 in · 94%
Clouds
100%
Humidity
99%
Dew pointDew point
75 °F
Visibility
10 mi
UV indexUV
0 · low
Air qualityAir
Good · 19
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 (+0.03 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 OvercastLight drizzleLight drizzleLight drizzleLight drizzleHeavy drizzleDrizzleLight drizzle
Temperature 78°76°76°77°83°82°78°78°
Wind (mph) 0 E3 SW3 SSW3 SSW2 W3 NNE3 ENE2 NE
Gusts 18812101065
Waves 0.1 ft0.3 ft0.4 ft0.3 ft0.3 ft0.3 ft0.3 ft0.3 ft
Rain 0.00 in0.01 in0.00 in0.01 in0.01 in0.05 in0.03 in0.01 in
  • 6:00 am 76° 3 SSW 0.4 ft
  • 9:00 am 77° 3 SSW 0.3 ft
  • 12:00 pm 83° 2 W 0.3 ft
  • 3:00 pm 82° 3 NNE 0.3 ft
  • 6:00 pm 78° 3 ENE 0.3 ft
  • 9:00 pm 78° 2 NE 0.3 ft
  • 12:00 am 77° 1 SE 0.3 ft
  • 3:00 am 76° 4 SSW 0.3 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 29 Light showers 75 / 85 °F 4 mph S 0.4 ft 8:55 am · 9:09 pm
Fri 30 Light showers 76 / 86 °F 4 mph SSE 0.5 ft 9:34 am · 9:46 pm
Sat 31 Drizzle 75 / 86 °F 3 mph SSE 0.5 ft 10:15 am · 10:27 pm
Sun 1 Light showers 74 / 87 °F 4 mph SE 0.8 ft 11:04 am · 11:20 pm
Mon 2 Light showers 74 / 82 °F 6 mph SE 1.0 ft 12:21 pm
Tue 3 Drizzle 75 / 87 °F 6 mph SSW 0.7 ft 1:03 am · 3:50 pm
Wed 4 Light showers 75 / 83 °F 5 mph SE 0.7 ft 3:16 am · 4:41 pm
Thu 5 Light showers 74 / 88 °F 3 mph E 0.5 ft 4:24 am · 5:22 pm
Fri 6 Drizzle 75 / 82 °F 6 mph ESE 0.9 ft 5:13 am · 5:59 pm
Sat 7 Light showers 76 / 80 °F 4 mph ESE 0.9 ft 5:55 am · 6:34 pm
Sun 8 Light showers 75 / 79 °F 4 mph SE 0.5 ft 6:33 am · 7:05 pm
Mon 9 Light showers 75 / 79 °F 4 mph SE 0.5 ft 7:07 am · 7:32 pm
Tue 10 Drizzle 74 / 85 °F 2 mph E 0.5 ft 7:38 am · 7:56 pm
Wed 11 Drizzle 75 / 81 °F 5 mph W 0.5 ft 8:06 am · 8:18 pm
  • Fri 30 Light showers 76° / 86° 0.5 ft
  • Sat 31 Drizzle 75° / 86° 0.5 ft
  • Sun 1 Light showers 74° / 87° 0.8 ft
  • Mon 2 Light showers 74° / 82° 1.0 ft
  • Tue 3 Drizzle 75° / 87° 0.7 ft
  • Wed 4 Light showers 75° / 83° 0.7 ft
  • Thu 5 Light showers 74° / 88° 0.5 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 tomorrow. See the models →
  • Outlook Next few weeks, compared with normal: a bit warmer and normal rain. See the outlook →
  • Normal Today, cooler than normal for late October (−3.5 °F; normal high: 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 5:50 am (local time).

Sun

The sun in Dumai

Sunrise and sunset →

Sunrise and sunset

Rises 5:56 am in the ESE (103°)ESE
Sets 6:00 pm in the WSW (256°)WSW
  • First light 5:10 am
  • Full dark 6:46 pm
  • Civil dawn 5:35 am
  • Civil dusk 6:21 pm
  • Solar noon 11:58 am (75° high)
  • Daylight 12 h 4 min (−0 min)
  • Evening golden hour 5:32 pm
  • Full dark 6:46 pm

Golden hour and the day-night map

Morning golden hour5:56–6:24 am
Evening golden hour5:32–6:00 pm
Dumai

Today the sun is 92,342,371 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in Dumai

The moon for 7 days →

Moon phase and position

Waning gibbous · 87% 87% illuminated · 18.5 days old New moon on Mon, Nov 9 · 2:03 pm
Rises 9:07 pm in the ENE (62°)ENE
Sets 9:45 am tomorrow · in the WNW (298°) · set at 8:40 am
Transit 2:21 am overhead
Visible 12 h 38 min from 9:07 pm to 9:45 am

Today the moon is 226,507 mi away and looks 32′ 46″ across.

Solunar periods

Today's activity: medium
  • 1:21–3:21 am Major · the moon passes overhead · high activity
  • 1:54–3:54 pm Major · the moon passes underfoot · high activity
  • 8:10–9:10 am Minor · moonset · medium activity
  • 8:37–9:37 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 · 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.

Place

Where to fish in Dumai

All places in Riau →

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 DumaiTides nearby

All places in Riau, A to Z (10) →

Dumai at a glance

  • Town or city of about 349,389 people. Coordinates: 1.667° N, 101.443° E.
  • It is 182 mi west of Bátam, the main place in Riau. The sun rises 11 min later and sets 10 min later than in Bátam.
  • Its coast faces north.

Questions about DumaiQuestions

What time is high tide today in Dumai?

Today in Dumai there are high tides at 8:55 am (4.4 ft) and 9:09 pm (2.4 ft) and low tides at 1:00 am and 4:23 pm. Tide coefficient 87.

What time is sunset today in Dumai?

At 6:00 pm. There is light until the end of civil twilight, at 6:21 pm.

What time is sunrise tomorrow in Dumai?

At 5:56 am. First light comes at 5:10 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 1:21–3:21 am, Minor 8:10–9:10 am, Major 1:54–3:54 pm, Minor 8:37–9:37 pm. Today's activity is medium.

What's the weather like today in Dumai?

Light showers, from 75 °F to 85 °F, with a light breeze from the south-southwest (4 mph) and a 94% chance of rain.

How is the sea today in Dumai?

Smooth (Douglas 2): 0.4 ft waves with a period of 1.5 s from the southwest.

When is the best time to visit Dumai?

Any time of year is good for Dumai: highs range from 88 °F to 90 °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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