Nearby Harbors
44.3841’ N, 68.7922’ W

Castine, ME

45°
H -°
L 35°
NNE
9mph
Low tide
1:30 am
Photo Credits

Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Wednesday, October 21, 2026
The tide is currently falling in Castine, ME.
Next low tide : in 19m at 1:30 am (1.5 ft)
Next high tide : 7:48 am (8.9 ft)
Sunset today : 5:41 pm
Sunrise tomorrow : 6:58 am
Moon phase : Waxing Gibbous (78% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Featured Local Businesses

Windmill Hill Provisions in Castine, Maine

Windmill Hill Provisions
Hamilton Marine - Searsport

Hamilton Marine - Searsport
Anna, sailing, view off the bow.

Stephens Waring Design
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Castine, ME Tides - Jun 2010

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:2710.63:059.68:500.49:041.74:538:12Waning Gibbous1Tue
2Wed3:1210.23:509.49:340.89:511.94:538:13Waning Gibbous2Wed
3Thu3:599.84:379.310:191.110:412.04:528:13Third Quarter3Thu
4Fri4:499.45:259.311:051.411:332.14:528:14Third Quarter4Fri
5Sat5:419.16:139.411:521.64:518:15Third Quarter5Sat
6Sun6:348.97:029.512:262.012:411.74:518:16Third Quarter6Sun
7Mon7:298.97:509.81:191.71:301.74:518:16Waning Crescent7Mon
8Tue8:218.98:3710.12:111.42:181.74:508:17Waning Crescent8Tue
9Wed9:129.19:2310.53:010.93:061.64:508:18Waning Crescent9Wed
10Thu10:019.410:0911.03:480.53:531.44:508:18Waning Crescent10Thu
11Fri10:479.710:5411.44:340.04:391.14:508:19New Moon11Fri
12Sat11:3410.011:4111.75:20-0.45:260.94:508:19New Moon12Sat
13Sun12:2110.36:07-0.76:150.64:508:20New Moon13Sun
14Mon12:2911.91:0910.56:55-0.97:050.54:508:20Waxing Crescent14Mon
15Tue1:1912.01:5910.77:44-1.07:580.44:508:21Waxing Crescent15Tue
16Wed2:1111.92:5210.98:35-1.08:540.34:508:21Waxing Crescent16Wed
17Thu3:0711.63:4611.09:28-0.89:530.34:508:22First Quarter17Thu
18Fri4:0511.24:4311.010:23-0.510:540.34:508:22First Quarter18Fri
19Sat5:0610.85:4111.111:20-0.111:580.34:508:22First Quarter19Sat
20Sun6:1010.36:4111.112:190.24:508:22First Quarter20Sun
21Mon7:1410.07:4011.21:020.21:190.54:508:23Waxing Gibbous21Mon
22Tue8:189.98:3711.22:040.02:180.74:518:23Waxing Gibbous22Tue
23Wed9:179.89:3211.33:03-0.13:150.94:518:23Waxing Gibbous23Wed
24Thu10:129.910:2311.33:58-0.34:080.94:518:23Full Moon24Thu
25Fri11:039.911:1111.34:49-0.34:581.04:518:23Full Moon25Fri
26Sat11:499.911:5511.25:36-0.35:441.14:528:23Full Moon26Sat
27Sun12:339.96:20-0.26:281.24:528:23Full Moon27Sun
28Mon12:3811.01:149.87:010.07:101.34:538:23Waning Gibbous28Mon
29Tue1:1910.81:549.87:410.27:521.44:538:23Waning Gibbous29Tue
30Wed2:0010.52:339.78:200.58:331.64:548:23Waning Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8414672)

www.USHarbors.com

© 2026 US Harbors LLC All rights reserved

The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
Any commercial use, modification, redistribution, or repackaging without written permission is strictly prohibited.

Common Questions About Castine, ME Tides

Collapse All
Is this week a spring tide or neap tide in Castine, ME?

Castine, ME is currently in a transitional phase. Tonight's moon is 78% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Castine, ME tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Castine, ME?

Tide predictions for Castine, ME come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Castine, ME?

Tide data for Castine, ME is sourced from NOAA Station #8414672. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8414672.

What is the moon phase in Castine, ME tonight?

Tonight the moon over Castine, ME is Waxing Gibbous (78% illuminated). This places Castine, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA

Coastal Stories See All

A car drives through a snowstorm in Broomfield, Colorado, in 2024. (Image credit: Bob Hyatt/NOAA)

El Nino looms large over U.S. Winter Outlook

By noaa.gov, noaa.gov. NOAA’s U.S. Winter Outlook, released today, shows how El Nino will likely influence the… More

Coastal NewsWeather & Tides

Archival photo of New England swordfishing vessel (left) courtesy of NOAA Fisheries; Background photo and photo offloading fish (right) courtesy of Hawaii Longline Association/Eric Kingma

Highly Migratory Species Management: Managing Shared Resources at Home and Around the World

By fisheries.noaa.gov, fisheries.noaa.gov. Highly migratory species—like Atlantic yellowfin tuna, Pacific albacore, and Atlantic swordfish—travel thousands of miles across… More

Coastal NewsOcean Science

A freediver from the Papahānaumokuākea Marine Debris Project works to carefully remove a ghost net from the reef at Kamokuokamohoali‘i (Maro Reef) in Hawaii. (Image credit: Andrew Sullivan-Hawkins/Papahānaumokuākea Marine Debris Project (Under permit # PMNM-2024-003))

Large-scale Marine Debris: 4 Ways to Clean up the Big Stuff

By fisheries.noaa.gov, fisheries.noaa.gov. Marine debris is a challenging problem. Across the country, NOAA and partners… More

Coastal NewsOcean Science

Map showing sea surface height anomalies using Darker reds to show sea levels higher than normal, while darker blues show heights below normal

Kelvin Waves, Explained

By fisheries.noaa.gov, fisheries.noaa.gov. You may be hearing a lot about Kelvin waves in the news.… More

Coastal NewsOcean ScienceWeather & Tides

Southern Resident killer whales swim just off Seattle’s shore. NOAA experts anticipate that the West Coast and the Pacific Islands will feel the effects of the 2026–2027 El Niño event most directly. Credit: NOAA Northwest Fisheries Science Center; taken under NOAA permit #781-1824

How Will El Niño Affect Your Local Fisheries?

By fisheries.noaa.gov, fisheries.noaa.gov. What does El Niño mean for U.S. fisheries and marine life? What… More

Coastal NewsOcean ScienceWeather & Tides

NOAA's flood inundation map (left) depicting the forecast for flooding extent in New London, Wisconsin, and a photo of flooded streets in New London (right), dated April 17, 2026. (Image credit: NOAA NWS)

NOAA’s flood mapping tool now covers nearly 100% of U.S.

By fisheries.noaa.gov, fisheries.noaa.gov. NOAA’s National Weather Service announced today that Flood Inundation Mapping (FIM), a… More

Coastal NewsWeather & Tides

Image Credits: Noaa fisheries.

Meet Hawaii Fish Company, Tilapia Farmers in Hawaiʻi

By fisheries.noaa.gov, fisheries.noaa.gov. For husband and wife duo Ron and and Estralita Weidenbach, fish farming… More

Coastal LifeMarine Economy

NOAA Fisheries and Sea Quester Farms partnered up to evaluate if kelp farms provide habitat for marine life in Alaska. Pictured here is one of Sea Quester’s farms in southeast Alaska near Juneau. Credit: Hatch Blue, Alaska Mariculture Cluster

Kelp Farms and Marine Life Co-Exist in Southeast Alaska

By fisheries.noaa.gov, fisheries.noaa.gov. Marine aquaculture, or mariculture, provides economic opportunities for coastal communities in Alaska… More

Coastal LifeOcean Science

Image Credits: Noaa Fisheries.

Celebrate National Seafood Month

By fisheries.noaa.gov, fisheries.noaa.gov. As we welcome autumn, we also celebrate National Seafood Month! Join us… More

Coastal LifeCoastal News

Your Privacy Choices