TidePlanet

Today in Greenlawn there are high tides at 1:04 am (7.9 ft) and 1:19 pm (9.0 ft) and low tides at 7:11 am and 7:51 pm. Tide coefficient 84. Right now the tide is falling toward the low tide at 7:51 pm. The sun rises at 7:19 am and sets at 5:54 pm: 10 h 35 min of daylight. The moon is 91% illuminated (waning gibbous) and rises at 7:26 pm. Major solunar periods run from 1:28 am to 3:28 am and from 2:00 pm to 4:00 pm. The next spring tides arrive from October 26 to 28. The sea is calm (rippled), with 0.1 ft waves. There's a light breeze from the south-southeast (5 mph). Overcast, 55 °F.

Fishing

Fishing in Greenlawn today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: medium
6
Average day · 6 out of 10 6:50–8:00 am Also 1:30–2:20 pm and 7:00–8:00 pm
  • Low tide at 7:11 am
  • Sunrise at 7:19 am
  • Rising pressure (+0.15 inHg in 24 h), light onshore wind (5 mph) and calm sea (0.3 ft waves)
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 84 (average tides)

Your day at a glance

The best window, 6:50 am to 8:00 am, combines the 7:11 am low tide, sunrise and a light onshore breeze, though with rising pressure. Also good from 1:30 pm to 2:20 pm, with the 1:19 pm high tide, a major period and a light onshore breeze. Also good from 7:00 pm to 8:00 pm, with the 7:51 pm low tide and moonrise.

Species with the most records nearby: winter flounder, summer flounder, longfin inshore squid and scup. October is one of the months when these are seen most: summer flounder and longfin inshore squid. What you can catch

How it works · Next 7 days · Fishing rules

Beach

Beach day in Greenlawn

Beach forecast, 7 days →

Is it a beach day?

0
Not a beach day · 0 out of 10 No good beach time today.
  • Onshore breeze (8 mph)
  • Calm for swimming: 0.4 ft waves
  • UV 3 (moderate): SPF 30 sunscreen
  • Low tide at 7:11 am: more sand
  • Cloudy (78% cloud cover)
  • Feels like 57 °F: chilly for the beach

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 60 °F

    Cold: ease in slowly.

  • Sun & sunscreen UV 3 · SPF 30

    Max UV 3 (moderate): SPF 30 sunscreen, reapplied every 2 hours.

  • Wind 8 mph

    Onshore breeze (8 mph).

  • Tide & sand 7:51 pm

    Low tide at 7:11 am and 7:51 pm: that's when there's the most sand. High tide at 1:04 am and 1:19 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 Greenlawn

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Water quality: check the official beach advisories for New York (New York State Department of Health).

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 Greenlawn

Tides for 7 days →

Today's high and low tides

  • ▲ High tide 1:04 am 7.9 ft · coef. 84
  • ▼ Low tide 7:11 am -0.1 ft
  • ▲ High tide 1:19 pm 9.0 ft · coef. 84

↓ Falling The tide is falling. 1 h 55 min to low tide at 7:51 pm.

Tide coefficient 84 for the 1:04 am high tide and 84 for the 1:19 pm high tide. Average coefficient. The water rises and falls 9.7 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 May 18 (9.2 ft) and the lowest, on December 25 (-1.3 ft).

Semidiurnal: two high and two low tides a day, of similar height.

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 29 (coefficient 84, 9.8 ft range). The smallest, from October 18 to 19 (coefficient 48, 4.8 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Wed 28 7:19 am · 5:54 pm High tide 1:04 am · 7.9 ft Low tide 7:11 am · -0.1 ft High tide 1:19 pm · 9.0 ft Low tide 7:51 pm · -0.8 ft Coef. 84 91% Major periods 1:28 am · 2:00 pm Medium
Thu 29 7:21 am · 5:53 pm High tide 1:52 am · 7.8 ft Low tide 8:01 am · 0.0 ft High tide 2:09 pm · 8.8 ft Low tide 8:42 pm · -0.6 ft Coef. 83 84% Major periods 2:32 am · 3:04 pm Medium
Fri 30 7:22 am · 5:52 pm High tide 2:45 am · 7.7 ft Low tide 8:56 am · 0.2 ft High tide 3:05 pm · 8.5 ft Low tide 9:39 pm · -0.3 ft Coef. 80 74% Major periods 3:36 am · 4:08 pm Medium
Sat 31 7:23 am · 5:51 pm High tide 3:44 am · 7.5 ft Low tide 9:58 am · 0.4 ft High tide 4:06 pm · 8.1 ft Low tide 10:41 pm · 0.0 ft Coef. 75 63% Major periods 4:39 am · 5:08 pm Medium
Sun 1 6:24 am · 4:49 pm High tide 3:48 am · 7.4 ft Low tide 10:09 am · 0.6 ft High tide 4:13 pm · 7.7 ft Low tide 10:49 pm · 0.2 ft Coef. 70 Last quarter Major periods 4:37 am · 5:04 pm Medium
Mon 2 6:25 am · 4:48 pm High tide 4:58 am · 7.4 ft Low tide 11:22 am · 0.5 ft High tide 5:27 pm · 7.4 ft Low tide 11:56 pm · 0.2 ft Coef. 68 41% Major periods 5:30 am · 5:54 pm Medium
Tue 3 6:27 am · 4:47 pm High tide 6:09 am · 7.6 ft Low tide 12:33 pm · 0.4 ft High tide 6:41 pm · 7.3 ft — Coef. 69 30% Major periods 6:18 am · 6:41 pm Medium

▲ 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

A · Official station

Tides from the Northport station (NOAA), 2.2 mi from Greenlawn. Times and heights are its predictions.

Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)

How we calculate the tide

Sea and waves

The sea at Greenlawn

7-day waves

Sea stateSea state: calm (rippled)

Calm (rippled) Douglas 1 · light breeze, Beaufort 2
Waves 0.1 ft · 2.3 s from the east-northeast (57°)
Swell 0.1 ft · 2.0 s from the northeast
Current 0.0 mph toward the E

The waves you may find

  • Most commonMost common0.1 ft
  • Significant0.1 ft
  • Highest expectedHighest0.3 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 0.3 ft. Before heading out, expect waves of up to 0.3 ft.

Wind on the coast and offshore

On the coast 5 mph SSE · gusts 11
Offshore (11 mi NNE)Offshore 5 mph E · gusts 11

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 Friday 30: 1.1 ft with a period of 2 s, from the northwest (smooth).

Water temperature

Water temperature →
Water now60.3 °F
Today 59.9–60.3 °F air: 43 / 60 °F
Satellite (yesterday) 61.3 °F measured 1.5 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 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 5:56 pm (local time).

Nearest buoy

Great South Bay Buoy 44069 · 19 mi SE of here Measured at 5:00 pm, 56 min ago
Wind 7 mph SE · gusts 9
Water 56.5 °F air 57 °F

This is a real measurement of the sea, not a forecast. Data from station 44069, NOAA National Data Buoy Center (public domain).

Diving

Diving in Greenlawn today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: good
10
Great day · 10 out of 10 12:20–2:20 pm Also 6:50–8:00 am
  • Slack water around high tide (1:19 pm): little current from 1:00 pm to 1:40 pm
  • 0.3 ft swell at 2 s from the northeast: barely any surge
  • Light onshore wind (5 mph)
  • 0.1 mph current toward the east, weak (model)
  • Sun high: more light underwater
Swell 0.3 ft 2 s · from the NE
Likely visibility Good Snorkeling: good
Water and suit 59.9 °F 7 mm wetsuit
Current 0.1 mph toward the E
  • Slack water today: high tide 1:04 am (12:40–1:30 am), low tide 7:11 am (6:40–7:40 am), high tide 1:19 pm (1:00–1:40 pm) and low tide 7:51 pm (7:20–8:20 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 59.9 °F: a 7 mm wetsuit, with hood and booties.
  • Snorkeling: good, calm sea and light wind.
  • Night dive: dark from 6:23 pm. Waning gibbous (91%), rising at 7:26 pm: a bright night.

Your diving day at a glance

The best window, 12:20 pm to 2:20 pm, combines slack water at high tide, little swell, light wind, weak current and the sun high. Also good from 6:50 am to 8:00 am, with slack water at low tide, little swell, light wind and weak 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). US wrecks: NOAA electronic navigational charts (ENC), a U.S. Government work; not for navigation. Artificial reefs: NOAA and BOEM (MarineCadastre.gov), a U.S. Government work.

Weather

Weather in Greenlawn

14-day weather

Now in Greenlawn

Now 55 °F Overcast · feels like 51 °F · 43 / 60 °F
Low / high
43 / 60 °F
Rain
0.00 in · 1%
Clouds
98%
Humidity
73%
Dew pointDew point
46 °F
Visibility
13 mi
UV indexUV
0 · low
Air qualityAir
Good · 41
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). Over the next 48 hours: −0.30 inHg. 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 ClearClearClearMainly clearOvercastOvercastOvercastPartly cloudy
Temperature 45°44°43°50°56°59°54°50°
Wind (mph) 3 SSE5 NNE4 NE3 ENE5 NE6 ENE5 SSE6 SSE
Gusts 49912571112
Waves 0.1 ft0.1 ft0.3 ft0.4 ft0.3 ft0.2 ft0.1 ft0.1 ft
Rain 0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
  • 6:00 pm 54° 5 SSE 0.1 ft
  • 9:00 pm 50° 6 SSE 0.1 ft
  • 12:00 am 49° 6 S 0.1 ft
  • 3:00 am 48° 6 SSW 0.1 ft
  • 6:00 am 48° 6 SW 0.1 ft
  • 9:00 am 53° 3 WSW 0.1 ft
  • 12:00 pm 65° 8 SW 0.1 ft
  • 3:00 pm 67° 10 SW 0.1 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 28 Overcast 43 / 60 °F 8 mph E 0.4 ft 1:04 am · 1:19 pm
Thu 29 Clear sky 47 / 67 °F 10 mph SW 0.7 ft 1:52 am · 2:09 pm
Fri 30 Overcast 50 / 69 °F 13 mph WNW 1.1 ft 2:45 am · 3:05 pm
Sat 31 Partly cloudy 44 / 59 °F 9 mph NNW 0.7 ft 3:44 am · 4:06 pm
Sun 1 Overcast 43 / 62 °F 5 mph SW 0.1 ft 3:48 am · 4:13 pm
Mon 2 Partly cloudy 48 / 65 °F 7 mph SW 0.1 ft 4:58 am · 5:27 pm
Tue 3 Overcast 51 / 66 °F 8 mph E 0.1 ft 6:09 am · 6:41 pm
Wed 4 Partly cloudy 51 / 65 °F 10 mph ESE 0.9 ft 7:14 am · 7:46 pm
Thu 5 Clear sky 53 / 65 °F 12 mph E 0.9 ft 8:11 am · 8:44 pm
Fri 6 Light rain 52 / 64 °F 13 mph WSW 1.3 ft 9:01 am · 9:33 pm
Sat 7 Light rain 48 / 60 °F 11 mph NW 3.2 ft 9:45 am · 10:18 pm
Sun 8 Overcast 44 / 58 °F 10 mph NW 2.2 ft 10:25 am · 10:57 pm
Mon 9 Clear sky 40 / 55 °F 7 mph NNW 1.2 ft 11:00 am · 11:33 pm
Tue 10 Overcast 42 / 55 °F 8 mph NE 1.6 ft 11:34 am
  • Thu 29 Clear sky 47° / 67° 0.7 ft
  • Fri 30 Overcast 50° / 69° 1.1 ft
  • Sat 31 Partly cloudy 44° / 59° 0.7 ft
  • Sun 1 Overcast 43° / 62° 0.1 ft
  • Mon 2 Partly cloudy 48° / 65° 0.1 ft
  • Tue 3 Overcast 51° / 66° 0.1 ft
  • Wed 4 Partly cloudy 51° / 65° 0.9 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 5:56 pm (local time).

Sun

The sun in Greenlawn

Sunrise and sunset →

Sunrise and sunset

Rises 7:19 am in the ESE (107°)ESE
Sets 5:54 pm in the WSW (253°)WSW
  • First light 6:19 am
  • Full dark 6:55 pm
  • Civil dawn 6:51 am
  • Civil dusk 6:23 pm
  • Solar noon 12:37 pm (36° high)
  • Daylight 10 h 35 min (−2 min)
  • Evening golden hour 5:16 pm
  • Full dark 6:55 pm

Golden hour and the day-night map

Morning golden hour7:19–7:58 am
Evening golden hour5:16–5:54 pm
Greenlawn

Today the sun is 92,354,883 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in Greenlawn

The moon for 7 days →

Moon phase and position

Waning gibbous · 91% 91% illuminated · 18.0 days old New moon on Mon, Nov 9 · 2:03 am
Rises 7:26 pm in the NE (53°)NE
Sets 11:40 am tomorrow · in the NW (308°) · set at 10:30 am
Transit 2:28 am overhead
Visible 16 h 14 min from 7:26 pm to 11:40 am

Today the moon is 226,429 mi away and looks 32′ 47″ across.

Solunar periods

Today's activity: medium
  • 1:28–3:28 am Major · the moon passes overhead · high activity
  • 2:00–4:00 pm Major · the moon passes underfoot · high activity
  • 10:00–11:00 am Minor · moonset · medium activity
  • 6:56–7:56 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 Sun, Nov 1 · 3:29 pmNov 1 in 4 days
  • New moon Mon, Nov 9 · 2:03 amNov 9 in 12 days
  • First quarter Tue, Nov 17 · 6:48 amNov 17 in 20 days
  • Full moon Tue, Nov 24 · 9:54 amNov 24 in 27 days

Perigee on October 28, 226,426 mi away, coinciding with the spring tides from October 26 to 28: they will be stronger than usual.

Place

Where to fish in Greenlawn

All places in New York →

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

Very shallow

Very shallow and flat: even 1.1 mi from shore the water is less than 16 ft deep.

From the shoreline (1.3 mi from Greenlawn) out to sea, heading northeast.

How far from shore

  • 16 ft deepnot within 1.1 mi
  • 33 ft deepnot within 1.1 mi
  • 66 ft deepnot within 1.1 mi
  • 164 ft deepnot within 1.1 mi

For fishing, swimming and diving

  • Shore fishing. Very shallow: the water doesn't reach 16 ft within 1.1 mi. Cast far from the beach, ideally around high tide.
  • Swimming. A very gentle way in with plenty of shallow water, good for kids. At low tide the water can be far out.
  • Diving. Shallow: the water doesn't reach 33 ft within 1.1 mi. For deeper dives, take a boat farther out.

Inside bays, estuaries and harbors the bottom changes a lot from spot to spot (channels and shoals): use this only as a rough guide. There is land ahead (an island, a headland or the far shore) 1.1 mi out. The profile is turned slightly from the coast so it does not run into an island or a headland. Where the bottom comes up to the surface there are shoals, rocks or an islet next to the profile.

Source: NOAA U.S. Coastal Relief Model (public domain), cells of about 300 ft; depth below mean sea level. For reference only: not for navigation or anchoring.

Nearest lighthouse

Photo of Huntington Harbor Light
Photo: Unknown author Unknown author · Public domain

Huntington Harbor Light 4.5 mi northwest

Light
White light, on and off for equal times, every 6 s · Iso W 6s
Range
9 nautical miles (10 mi)
Light height
39 ft above sea level
Tower height
43 ft
Built
1857

Other lighthouses nearby: Eatons Neck Light (6.1 mi north).

Data from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses

Tides near GreenlawnTides nearby

All places in New York, A to Z (431) → Long Island tides →

Greenlawn at a glance

  • Town or city of about 13,742 people. Coordinates: 40.869° N, 73.365° W.
  • It is 35 mi east of New York, the main place in New York. The sun rises 2 min earlier and sets 3 min earlier than in New York.
  • The nearest tide station, Northport, is 2.2 mi to the north.
  • Its coast faces north.
  • Beaches and harbors nearby: Northport Beach (2.1 mi), Centerport Beach (2.6 mi), Knollwood Beach (2.8 mi), Crescent Beach (3.2 mi).

Questions about GreenlawnQuestions

What time is high tide today in Greenlawn?

Today in Greenlawn there are high tides at 1:04 am (7.9 ft) and 1:19 pm (9.0 ft) and low tides at 7:11 am and 7:51 pm. Tide coefficient 84.

What time is sunset today in Greenlawn?

At 5:54 pm. There is light until the end of civil twilight, at 6:23 pm.

What time is sunrise tomorrow in Greenlawn?

At 7:21 am. First light comes at 6:20 am.

What phase is the moon today?

Waning gibbous, 91% illuminated. New moon on Mon, Nov 9 · 2:03 am.

When are the next spring tides?

From October 26 to 28, together with the lunar perigee: they will be stronger than usual.

What are today's solunar periods?

Major 1:28–3:28 am, Minor 10:00–11:00 am, Major 2:00–4:00 pm, Minor 6:56–7:56 pm. Today's activity is medium.

What's the weather like today in Greenlawn?

Overcast, from 43 °F to 60 °F, with a light breeze from the south-southeast (5 mph) and a 1% chance of rain.

How is the sea today in Greenlawn?

Calm (rippled) (Douglas 1): 0.1 ft waves with a period of 2.3 s from the east-northeast. The water is 60.3 °F.

When is the best time to visit Greenlawn?

The best time to visit Greenlawn is from June to September: highs of 74 °F to 82 °F, about 9 rainy days a month and 7 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: NOAA station Northport (public domain), via Slackwater database. 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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