Marine Weather and Tide Forecast for Groton, CT

May 19, 2025 5:24 PM EDT (21:24 UTC)
Change Location

Sunrise 5:23 AM Sunset 8:05 PM
Moonrise 1:22 AM Moonset 11:16 AM

NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts

Edit Hide Help

NOTE: Zones were updated 3/20/2025

ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 600 Am Edt Tue Mar 30 2021

Today - E winds around 5 kt, becoming S late this morning and afternoon. Seas 1 ft or less.

Tonight - S winds around 10 kt. Seas 1 to 2 ft.

Wed - S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers in the morning, then chance of rain in the afternoon.

Wed night - S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain. Vsby 1 to 3 nm.

Thu - W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers.

Thu night - NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.

Fri - NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.

Fri night - NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

Sat - W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

Sat night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

ANZ300 139 Pm Edt Mon May 19 2025

Synopsis for the long island and connecticut coastal waters - High pressure builds into the area tonight and remains in place through Tuesday. Tuesday night, the high starts to slide east. Deepening low pressure passes south of the area Wednesday into Thursday. The low then moves northeast and into the canadian maritimes Thursday night through Saturday. Weak high pressure then builds in Saturday night through Monday.

7 Day Forecast for Marine Location Near Groton city, CT

Edit Hide Help Map ←NEW

NEW! Add second zone forecast

Tide / Current for Silver Eel Pond, Fishers Island, N.Y.

Edit Weekend Mode (on/off) Hide Help

Silver Eel Pond
Click for Map
Mon -- 01:20 AM EDT Moonrise
Mon -- 02:11 AM EDT 2.45 feet High Tide
Mon -- 05:25 AM EDT Sunrise
Mon -- 09:36 AM EDT 0.41 feet Low Tide
Mon -- 11:16 AM EDT Moonset
Mon -- 03:10 PM EDT 2.15 feet High Tide
Mon -- 08:04 PM EDT Sunset
Mon -- 09:54 PM EDT 0.75 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Sorry, Silver Eel Pond, Fishers Island, N.Y. does not exist in database. Press Edit above and select a valid nearby location.

Silver Eel Pond, Fishers Island, N.Y., Tide feet

12
am

1
am

2.3

2
am

2.4

3
am

2.4

4
am

2.1

5
am

1.7

6
am

1.3

7
am

8
am

0.7

9
am

0.5

10
am

0.4

11
am

0.7

12
pm

1.3

1
pm

1.7

2
pm

3
pm

2.1

4
pm

2.1

5
pm

1.8

6
pm

1.5

7
pm

1.3

8
pm

9
pm

0.8

10
pm

0.8

11
pm

0.9

Tide / Current for The Race, Long Island Sound, New York Current

Edit Hide Help

The Race
Click for Map
Mon -- 01:20 AM EDT Moonrise
Mon -- 01:31 AM EDT 2.10 knots Max Flood
Mon -- 04:36 AM EDT -0.00 knots Slack
Mon -- 05:25 AM EDT Sunrise
Mon -- 08:00 AM EDT -2.57 knots Max Ebb
Mon -- 11:13 AM EDT 0.00 knots Slack
Mon -- 11:16 AM EDT Moonset
Mon -- 02:08 PM EDT 2.22 knots Max Flood
Mon -- 05:25 PM EDT -0.00 knots Slack
Mon -- 08:04 PM EDT Sunset
Mon -- 08:32 PM EDT -2.28 knots Max Ebb
Mon -- 11:37 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Sorry, The Race, Long Island Sound, New York Current does not exist in database. Press Edit above and select a valid nearby location.

The Race, Long Island Sound, New York Current, knots

12
am

1.4

1
am

2
am

3
am

1.4

4
am

0.6

5
am

-0.4

6
am

-1.4

7
am

-2.2

8
am

-2.6

9
am

-2.2

10
am

-1.3

11
am

-0.2

12
pm

0.8

1
pm

1.8

2
pm

2.2

3
pm

4
pm

1.3

5
pm

0.4

6
pm

-0.6

7
pm

-1.5

8
pm

-2.2

9
pm

-2.2

10
pm

-1.6

11
pm

-0.6

Area Discussion for New York City/Upton, NY

Hide Help
NOTE: mouseover dotted underlined text for definition

Using backup data server for okx

Weather Reporting Stations

Edit Hide Help

Stations	Dist	Age	Wind	Air	Water	Waves	inHg	DewPt
NLHC3	5 mi	55 min		64°F	52°F		29.69
MTKN6 - 8510560 - Montauk, NY	19 mi	55 min		60°F	60°F		29.65
QPTR1 - 8454049 - Quonset Point, RI	41 mi	55 min	NW 9.9G17	63°F	65°F		29.69
NWPR1 - 8452660 - Newport, RI	42 mi	55 min	NW 13G19	63°F	61°F		29.68
PDVR1	42 mi	55 min	WNW 12G16	64°F			29.67	43°F
NWHC3 - 8465705 - New Haven, CT	44 mi	55 min	NNW 18G23	65°F	57°F		29.72
NAXR1 - Narragansett Bay Reserve, RI	46 mi	100 min	NNE 5.1	66°F			29.68	48°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI	46 mi	55 min	N 4.1G12	63°F			29.68
CPTR1 - 8452944 - Conimicut Light, RI	48 mi	55 min	NW 19G23	60°F	59°F		29.69

Wind History for No Ports station near this location

(wind in knots) Edit Hide Help

toggle option: (graph/table)

No data

Airport Reports

Edit Hide Help Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Vis	Sky	Weather	Air	DewPt	RH	inHg
KGON GROTONNEW LONDON,CT	3 sm	28 min	NNW 17G26	10 sm	A Few Clouds		64°F	43°F	45%	29.69
KWST WESTERLY STATE,RI	15 sm	31 min	NNW 13G21	10 sm	Mostly Cloudy		64°F	43°F	45%	29.69
KMTP MONTAUK,NY	17 sm	30 min	NW 10G18		--		66°F	45°F	46%	29.70
KSNC CHESTER,CT	23 sm	29 min	NW 11G21	10 sm	Clear		66°F	41°F	40%	29.72

Link to 1 hour of 5 minute data for KGON

Terminal Aerodrome Forecast (TAF) for KGON

Wind History Graph: GON

(wind in knots)

toggle option: (graph/table)

Weather Map

Hide Help

Full Color Weather Map

wmap_A

GEOS Local Image of Northeast

Edit Hide

Link to Loop

Other links: GEOS-West Contential US Full GOES-East

Ground Weather Radar Station

Hide

Boston, MA,

NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE