Shorebite

Gosport Harbor, Isles of Shoals tide chart

New Hampshire · near Portsmouth (10 mi) · NOAA station 8427031 · times in local time (EDT)

Tides today, Sunday, October 11

12 AM6 AM12 PM6 PM5:53 AM · 0.1 ft12:09 PM · 9.6 ft6:22 PM · -0.4 ft9.6 ft
  • Low 5:53 AM 0.1 ft
  • High 12:09 PM 9.6 ft
  • Low 6:22 PM -0.4 ft

Sunrise 6:52 AM · Sunset 6:08 PM · New moon (0%)

Fishing forecast

Hour by hour at Gosport Harbor, Isles of Shoals
79Excellent

Best times

1:00 PM–2:00 PM and 1:00 AM–2:00 AM

New moon (0% lit)

    Biting around here in October

    • Striped bass In seasonMoving water at dawn and dusk; outgoing tide at inlets and river mouths
    • Bluefish In seasonLook for birds working bait on a moving tide
    • Tautog In seasonTight to rocks and jetties around slack water
    • Scup (porgy) In seasonHard bottom, any tide

    General seasonal guide for New England. Seasons, sizes and limits vary, so check your state rules before keeping fish.

    Weather and conditions at Gosport Harbor, Isles of Shoals

    Loading the National Weather Service forecast… Open it on weather.gov.

    Marine forecast: Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM

    Loading the latest National Weather Service forecast… Open it on weather.gov.

    • Water temperature —
    • Nearest weather buoy Great Bay Buoy (14 mi): waves, wind and water temperature
    Marine radio: weather channels and VHF

    NOAA Weather Radio

    • 162.425 MHz WX4 WNG574, Gloucester Marine, MA (24 mi)
    • 162.450 MHz WX5 KZZ40, Deerfield, NH (33 mi)

    To get alerts on a weather alert radio, program county code 033015 (Rockingham).

    VHF marine channels

    • Ch 16 Distress, safety and calling
    • Ch 9 Boater-to-boater calling
    • Ch 22A Coast Guard safety broadcasts
    • Ch 13 Bridge-to-bridge (big ships, drawbridges)
    • Ch 68, 69, 71, 72, 78A Recreational chat

    Weather radio broadcasts are continuous; VHF channels are the US standard. Local harbors and bridges may use others, so check your chart.

    Live readings from NOAA and the National Weather Service, loaded when you open this page.

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    Recent reports

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    Tide times this week

    DayHigh and low tidesSunrise / sunsetMoon
    Sun Oct 11L 5:53 AM 0.1 ftH 12:09 PM 9.6 ftL 6:22 PM -0.4 ft6:52 AM / 6:08 PMNew moon (0%)
    Mon Oct 12H 12:40 AM 9.0 ftL 6:33 AM 0.4 ftH 12:48 PM 9.5 ftL 7:04 PM -0.3 ft6:53 AM / 6:06 PMNew moon (2%)
    Tue Oct 13H 1:22 AM 8.7 ftL 7:12 AM 0.7 ftH 1:26 PM 9.3 ftL 7:45 PM 0.0 ft6:54 AM / 6:05 PMWaxing crescent (6%)
    Wed Oct 14H 2:03 AM 8.3 ftL 7:51 AM 1.1 ftH 2:05 PM 9.0 ftL 8:27 PM 0.3 ft6:55 AM / 6:03 PMWaxing crescent (12%)
    Thu Oct 15H 2:46 AM 7.9 ftL 8:32 AM 1.5 ftH 2:47 PM 8.7 ftL 9:11 PM 0.7 ft6:56 AM / 6:01 PMWaxing crescent (19%)
    Fri Oct 16H 3:33 AM 7.5 ftL 9:17 AM 1.8 ftH 3:34 PM 8.3 ftL 10:01 PM 1.1 ft6:57 AM / 6:00 PMWaxing crescent (28%)
    Sat Oct 17H 4:24 AM 7.3 ftL 10:07 AM 2.0 ftH 4:27 PM 8.1 ftL 10:54 PM 1.3 ft6:59 AM / 5:58 PMFirst quarter (38%)

    Tidal currents near Gosport Harbor, Isles of Shoals

    From NOAA's current predictions for Odiornes Point, NNE of at 15 ft depth, 6.4 miles away. Slack is when the current turns and the water is calmest; flood runs in with the rising tide and ebb runs out with the falling tide. Times are the peak of each run, in knots. The flood runs toward the NNW (339°) and the ebb toward the S (183°). The strongest current this week is 1.0 knots.

    DaySlack water and peak currents
    Sun Oct 11Flood 12:18 AM 0.4 knSlack 2:29 AMEbb 6:36 AM 0.9 knSlack 9:12 AMFlood 11:59 AM 0.5 knSlack 2:44 PMEbb 7:00 PM 1.0 knSlack 9:48 PM
    Mon Oct 12Flood 1:01 AM 0.4 knSlack 3:18 AMEbb 7:18 AM 0.9 knSlack 9:58 AMFlood 12:42 PM 0.5 knSlack 3:29 PMEbb 7:42 PM 1.0 knSlack 10:38 PM
    Tue Oct 13Flood 1:39 AM 0.4 knSlack 4:05 AMEbb 8:00 AM 0.8 knSlack 10:45 AMFlood 1:26 PM 0.5 knSlack 4:14 PMEbb 8:24 PM 0.9 knSlack 11:27 PM
    Wed Oct 14Flood 2:20 AM 0.4 knSlack 4:52 AMEbb 8:43 AM 0.8 knSlack 11:32 AMFlood 2:10 PM 0.4 knSlack 4:59 PMEbb 9:08 PM 0.9 kn
    Thu Oct 15Slack 12:16 AMFlood 3:02 AM 0.4 knSlack 5:39 AMEbb 9:28 AM 0.8 knSlack 12:20 PMFlood 2:56 PM 0.4 knSlack 5:44 PMEbb 9:53 PM 0.8 kn
    Fri Oct 16Slack 1:05 AMFlood 3:44 AM 0.4 knSlack 6:27 AMEbb 10:14 AM 0.7 knSlack 1:09 PMFlood 3:42 PM 0.4 knSlack 6:31 PMEbb 10:38 PM 0.8 kn
    Sat Oct 17Slack 1:54 AMFlood 4:28 AM 0.4 knSlack 7:15 AMEbb 11:01 AM 0.7 knSlack 1:59 PMFlood 4:29 PM 0.4 knSlack 7:19 PMEbb 11:24 PM 0.8 kn

    Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.

    Best fishing times at Gosport Harbor, Isles of Shoals

    The bite score (0 to 100) adds up what anglers watch most: moving water (a tide running harder than usual here scores higher), solunar periods (major periods of about two hours centred on the moon overhead or underfoot, minor periods of about an hour on moonrise and moonset), dawn and dusk light, and how close it is to the new or full moon. Best times are the stretches of the day scoring near that day's top.

    DayBite scoreBest timesMajor periodsMinor periods
    Sun Oct 1179 · Excellent1:00 PM–2:00 PM, 1:00 AM–2:00 AM11:54 PM–1:54 AM, 12:16 PM–2:16 PM7:37 AM–8:37 AM, 5:47 PM–6:47 PM
    Mon Oct 1268 · Good2:00 PM–3:00 PM, 1:00 AM–2:00 AM12:39 AM–2:39 AM, 1:03 PM–3:03 PM8:45 AM–9:45 AM, 6:13 PM–7:13 PM
    Tue Oct 1359 · Good2:00 AM–3:00 AM, 2:00 PM–4:00 PM1:27 AM–3:27 AM, 1:51 PM–3:51 PM9:51 AM–10:51 AM, 6:45 PM–7:45 PM
    Wed Oct 1451 · Fair3:00 PM–5:00 PM, 3:00 AM–4:00 AM2:16 AM–4:16 AM, 2:41 PM–4:41 PM10:54 AM–11:54 AM, 7:24 PM–8:24 PM
    Thu Oct 1546 · Fair4:00 PM–6:00 PM3:06 AM–5:06 AM, 3:31 PM–5:31 PM11:52 AM–12:52 PM, 8:11 PM–9:11 PM
    Fri Oct 1647 · Fair5:00 PM–6:00 PM3:57 AM–5:57 AM, 4:22 PM–6:22 PM12:41 PM–1:41 PM, 9:05 PM–10:05 PM
    Sat Oct 1747 · Fair6:00 PM–7:00 PM4:47 AM–6:47 AM, 5:12 PM–7:12 PM1:22 PM–2:22 PM, 10:06 PM–11:06 PM

    A planning aid, not a guarantee. Wind, water clarity, bait and pressure changes matter too; the forecast above adds live wind and pressure when you open the page.

    Best daylight low tides in the next two weeks

    The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.

    1. 0.0 ft at 4:16 PM on Saturday, October 24
    2. 0.6 ft at 3:33 PM on Friday, October 23
    3. 0.7 ft at 7:12 AM on Tuesday, October 13
    4. 1.1 ft at 7:51 AM on Wednesday, October 14
    5. 1.1 ft at 2:47 PM on Thursday, October 22
    6. 1.5 ft at 8:32 AM on Thursday, October 15

    Tide table: October 11 to November 10, 2026

    Full 2026 tide table Full 2027 tide table

    DayHigh and low tidesSunrise / sunset
    Sun Oct 11L 5:53 AM 0.1 ftH 12:09 PM 9.6 ftL 6:22 PM -0.4 ft6:52 AM / 6:08 PM
    Mon Oct 12H 12:40 AM 9.0 ftL 6:33 AM 0.4 ftH 12:48 PM 9.5 ftL 7:04 PM -0.3 ft6:53 AM / 6:06 PM
    Tue Oct 13H 1:22 AM 8.7 ftL 7:12 AM 0.7 ftH 1:26 PM 9.3 ftL 7:45 PM 0.0 ft6:54 AM / 6:05 PM
    Wed Oct 14H 2:03 AM 8.3 ftL 7:51 AM 1.1 ftH 2:05 PM 9.0 ftL 8:27 PM 0.3 ft6:55 AM / 6:03 PM
    Thu Oct 15H 2:46 AM 7.9 ftL 8:32 AM 1.5 ftH 2:47 PM 8.7 ftL 9:11 PM 0.7 ft6:56 AM / 6:01 PM
    Fri Oct 16H 3:33 AM 7.5 ftL 9:17 AM 1.8 ftH 3:34 PM 8.3 ftL 10:01 PM 1.1 ft6:57 AM / 6:00 PM
    Sat Oct 17H 4:24 AM 7.3 ftL 10:07 AM 2.0 ftH 4:27 PM 8.1 ftL 10:54 PM 1.3 ft6:59 AM / 5:58 PM
    Sun Oct 18H 5:19 AM 7.1 ftL 11:02 AM 2.2 ftH 5:24 PM 7.9 ftL 11:50 PM 1.4 ft7:00 AM / 5:56 PM
    Mon Oct 19H 6:15 AM 7.1 ftL 11:59 AM 2.2 ftH 6:22 PM 7.9 ft7:01 AM / 5:55 PM
    Tue Oct 20L 12:45 AM 1.4 ftH 7:11 AM 7.3 ftL 12:59 PM 2.0 ftH 7:19 PM 8.0 ft7:02 AM / 5:53 PM
    Wed Oct 21L 1:38 AM 1.3 ftH 8:02 AM 7.6 ftL 1:55 PM 1.6 ftH 8:14 PM 8.2 ft7:03 AM / 5:52 PM
    Thu Oct 22L 2:26 AM 1.0 ftH 8:48 AM 8.1 ftL 2:47 PM 1.1 ftH 9:03 PM 8.4 ft7:05 AM / 5:50 PM
    Fri Oct 23L 3:09 AM 0.7 ftH 9:29 AM 8.6 ftL 3:33 PM 0.6 ftH 9:49 PM 8.7 ft7:06 AM / 5:49 PM
    Sat Oct 24L 3:49 AM 0.4 ftH 10:08 AM 9.2 ftL 4:16 PM 0.0 ftH 10:32 PM 9.0 ft7:07 AM / 5:47 PM
    Sun Oct 25L 4:29 AM 0.1 ftH 10:47 AM 9.7 ftL 5:00 PM -0.6 ftH 11:17 PM 9.1 ft7:08 AM / 5:46 PM
    Mon Oct 26L 5:11 AM 0.0 ftH 11:27 AM 10.1 ftL 5:44 PM -0.9 ft7:10 AM / 5:44 PM
    Tue Oct 27H 12:02 AM 9.2 ftL 5:54 AM -0.1 ftH 12:10 PM 10.3 ftL 6:30 PM -1.1 ft7:11 AM / 5:43 PM
    Wed Oct 28H 12:49 AM 9.2 ftL 6:40 AM -0.1 ftH 12:57 PM 10.4 ftL 7:19 PM -1.1 ft7:12 AM / 5:41 PM
    Thu Oct 29H 1:38 AM 9.0 ftL 7:29 AM 0.1 ftH 1:46 PM 10.3 ftL 8:11 PM -0.9 ft7:14 AM / 5:40 PM
    Fri Oct 30H 2:31 AM 8.8 ftL 8:21 AM 0.3 ftH 2:40 PM 10.0 ftL 9:07 PM -0.6 ft7:15 AM / 5:39 PM
    Sat Oct 31H 3:29 AM 8.5 ftL 9:19 AM 0.6 ftH 3:41 PM 9.6 ftL 10:09 PM -0.2 ft7:16 AM / 5:37 PM
    Sun Nov 1H 3:34 AM 8.2 ftL 9:24 AM 0.9 ftH 3:48 PM 9.3 ftL 10:15 PM 0.0 ft6:17 AM / 4:36 PM
    Mon Nov 2H 4:42 AM 8.2 ftL 10:34 AM 1.0 ftH 4:58 PM 9.0 ftL 11:21 PM 0.2 ft6:19 AM / 4:35 PM
    Tue Nov 3H 5:48 AM 8.3 ftL 11:45 AM 1.0 ftH 6:07 PM 8.8 ft6:20 AM / 4:33 PM
    Wed Nov 4L 12:26 AM 0.3 ftH 6:51 AM 8.6 ftL 12:55 PM 0.7 ftH 7:14 PM 8.8 ft6:21 AM / 4:32 PM
    Thu Nov 5L 1:25 AM 0.3 ftH 7:47 AM 8.9 ftL 1:56 PM 0.4 ftH 8:13 PM 8.8 ft6:22 AM / 4:31 PM
    Fri Nov 6L 2:18 AM 0.3 ftH 8:37 AM 9.2 ftL 2:50 PM 0.0 ftH 9:06 PM 8.8 ft6:24 AM / 4:30 PM
    Sat Nov 7L 3:05 AM 0.4 ftH 9:23 AM 9.4 ftL 3:38 PM -0.2 ftH 9:54 PM 8.7 ft6:25 AM / 4:29 PM
    Sun Nov 8L 3:48 AM 0.5 ftH 10:04 AM 9.5 ftL 4:22 PM -0.3 ftH 10:39 PM 8.6 ft6:26 AM / 4:27 PM
    Mon Nov 9L 4:29 AM 0.7 ftH 10:44 AM 9.5 ftL 5:04 PM -0.3 ftH 11:21 PM 8.4 ft6:28 AM / 4:26 PM
    Tue Nov 10L 5:07 AM 0.9 ftH 11:22 AM 9.3 ftL 5:43 PM -0.1 ft6:29 AM / 4:25 PM

    Heights are in feet above mean lower low water (MLLW), the zero line on most US nautical charts. A minus height means the water drops below that line.

    Around Gosport Harbor, Isles of Shoals

    Fishing piers and docks

    Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.

    Fish in the waters around Gosport Harbor, Isles of Shoals

    40 kinds of fish, sharks and rays have been recorded within 15 km (about 9 miles) of this spot, most often Atlantic Cod, Blueback Herring, Silver Hake. The bar shows how many records each has.

    • Atlantic Cod Gadus morhuaSalt water · 11927 records
    • Blueback Herring Alosa aestivalisSalt water · 363 records
    • Silver Hake Merluccius bilinearisSalt water · 258 records
    • Longhorn Sculpin Myoxocephalus octodecemspinosusSalt water · 252 records
    • Winter Flounder Pseudopleuronectes americanusSalt water · 250 records
    • American Plaice Hippoglossoides platessoidesSalt water · 248 records
    • Red Hake Urophycis chussSalt water · 237 records
    • Yellowtail Flounder Limanda ferrugineaSalt water · 220 records
    • Atlantic Herring Clupea harengusSalt water · 212 records
    • Alewife Alosa pseudoharengusSalt water · 205 records
    • Acadian Redfish Sebastes fasciatusSalt water · 170 records
    • White Hake Urophycis tenuisSalt water · 151 records
    • American Angler Lophius americanusSalt water · 147 records
    • Haddock Melanogrammus aeglefinusSalt water · 145 records
    • Witch Flounder Glyptocephalus cynoglossusSalt water · 134 records
    • Sea Raven Hemitripterus americanusSalt water · 130 records
    • Spurdog Squalus acanthiasSalt water · 121 records
    • Butterfish Peprilus triacanthusSalt water · 117 records
    • American Shad Alosa sapidissimaSalt water · 110 records
    • Fourspot Flounder Hippoglossina oblongaSalt water · 108 records
    • Ocean Pout Zoarces americanusSalt water · 106 records
    • Cunner Tautogolabrus adspersusSalt water · 101 records
    • Common Skate Leucoraja erinaceaSalt water · 93 records
    • Starry Ray Amblyraja radiataSalt water · 91 records
    • Fourbeard Rockling Enchelyopus cimbriusSalt water · 70 records
    • Saithe Pollachius virensSalt water · 68 records
    • Atlantic Mackerel Scomber scombrusSalt water · 59 records
    • Snake Blenny Lumpenus lampretaeformisSalt water · 53 records
    • Alligatorfish Aspidophoroides monopterygiusSalt water · 50 records
    • Daubed Shanny Leptoclinus maculatusSalt water · 48 records
    • Windowpane Scophthalmus aquosusSalt water · 48 records
    • Lumpfish Cyclopterus lumpusSalt water · 28 records
    • Smooth Skate Malacoraja sentaSalt water · 24 records
    • Pearl-side Maurolicus muelleriSalt water · 17 records
    • Winter Skate Leucoraja ocellataSalt water · 16 records
    • Atlantic Wolffish Anarhichas lupusSalt water · 14 records
    • Rainbow Smelt Osmerus mordaxSalt water · 13 records
    • Wrymouth Cryptacanthodes maculatusSalt water · 12 records
    • Atlantic Halibut Hippoglossus hippoglossusSalt water · 10 records
    • American Sand Lance Ammodytes americanusSalt water · 8 records

    Records from GBIF datasets released under CC0 or CC BY 4.0 (museum collections, surveys and community sightings). It shows what has been found here, not a complete list. Check your state rules before keeping fish.

    About the tides at Gosport Harbor, Isles of Shoals

    Gosport Harbor, Isles of Shoals gets two high tides and two low tides almost every day, and the two highs are close in height. Over the next month the water typically rises or falls about 8.3 ft between a high and the next low.

    The biggest swings in this window come around Wednesday, October 28, when the day's range reaches 11.5 ft, and again around Sunday, October 11 (10.1 ft). Those spring tides follow the new and full moon by a day or two. The calmest day is Monday, October 19, with only 6.4 ft between the day's highest and lowest water.

    The lowest tide of the month is -1.1 ft at 6:30 PM on Tuesday, October 27. There are 18 minus tides (lows below the chart's zero line) in this window: the best times for tide pools, clamming and walking the flats.

    The highest predicted tide is 10.4 ft at 12:57 PM on Wednesday, October 28. Onshore wind or a storm can push the real water level above that.

    This is a subordinate station: NOAA calculates its times and heights by adjusting a nearby reference station, so expect them to be a few minutes or a few tenths of a foot off on any given day.

    Station details

    Reference station: Portland.

    Nearby tide stations

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