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Portland, ME tide chart and marine alerts

NOAA station 8418150 · 43.658°N, 70.244°W. Get an email only when the NWS issues a marine or coastal alert here, or the tide runs unusually high or low.

NOAA station 8418150

Portland, ME

Tide now8.3 ft↓ falling · predicted

Next high1:16 PM9.3 ft

Next low7:05 AM1.7 ft

WindN 11 ktgusts 16
Water51°F
Air42°F
NOAA sensors · 1:18 AM

Small Craft Advisory until Fri 7:00 PM

NOAA sensor 9.3 ft at 1:18 AM (+1.0 ft vs prediction)Times EST · NOAA source

Today and tomorrow

Next 7 days Shape drawn between NOAA's predicted highs and lows

7-day tides, sun and moon Times EST · feet above MLLW

Day	High tides	Low tides	Sunrise Sunset	Moon
Fri, Nov 13	1:19 AM 8.3 ft1:16 PM 9.3 ft	7:05 AM 1.7 ft7:44 PM 0.7 ft	6:31 AM 4:18 PM	Waxing crescent 18%
Sat, Nov 14	2:02 AM 8.1 ft1:59 PM 9.1 ft	7:47 AM 1.9 ft8:28 PM 0.9 ft	6:33 AM 4:17 PM	Waxing crescent 25%
Sun, Nov 15	2:48 AM 7.9 ft2:47 PM 8.8 ft	8:34 AM 2.1 ft9:15 PM 1.1 ft	6:34 AM 4:16 PM	Waxing crescent 34%
Mon, Nov 16	3:38 AM 7.8 ft3:39 PM 8.6 ft	9:25 AM 2.1 ft10:04 PM 1.2 ft	6:35 AM 4:16 PM	Waxing crescent 43%
Tue, Nov 17	4:28 AM 7.9 ft4:32 PM 8.5 ft	10:19 AM 2.1 ft10:53 PM 1.3 ft	6:36 AM 4:15 PM	First quarter 53%
Wed, Nov 18	5:17 AM 8.2 ft5:27 PM 8.5 ft	11:14 AM 1.9 ft11:42 PM 1.2 ft	6:38 AM 4:14 PM	Waxing gibbous 63%
Thu, Nov 19	6:06 AM 8.5 ft6:23 PM 8.5 ft	12:11 PM 1.5 ft	6:39 AM 4:13 PM	Waxing gibbous 73%

Tides: NOAA CO-OPS predictions. Sun and moon: computed for this station's coordinates with NOAA's solar equations and standard lunar formulas.

Today Friday, Nov 13

Tide	Time (EST)	Height
High	1:19 AM	8.3 ft
Low	7:05 AM	1.7 ft
High	1:16 PM	9.3 ft
Low	7:44 PM	0.7 ft

Tomorrow Saturday, Nov 14

Tide	Time (EST)	Height
High	2:02 AM	8.1 ft
Low	7:47 AM	1.9 ft
High	1:59 PM	9.1 ft
Low	8:28 PM	0.9 ft

Sunday Sunday, Nov 15

Tide	Time (EST)	Height
High	2:48 AM	7.9 ft
Low	8:34 AM	2.1 ft
High	2:47 PM	8.8 ft
Low	9:15 PM	1.1 ft

Active NWS alerts

Small Craft Advisory until Fri 7:00 PM. Penobscot Bay; Casco Bay. NWS Gray ME

Marine forecast ANZ153 · Casco Bay

Tonight: NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A slight chance of rain early this evening, then a chance of rain late this evening and early morning. Rain likely towards daybreak.
Fri: N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain and snow in the morning with vsby 1 NM or less.
Fri Night: N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Sat: NW winds 5 to 10 kt. Seas 2 to 4 ft.
Sat Night: NW winds 5 to 10 kt. Seas 2 to 3 ft.
Sun: NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Sun Night: NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 foot or less.
Mon: NW winds 5 to 10 kt. Seas 1 foot or less.
Mon Night: NW winds around 5 kt. Seas 1 foot or less.
Tue: W winds around 5 kt. Seas 1 foot or less.

National Weather Service, issued Thu 5:02 PM EST. Official forecast for ANZ153

Unusual tides here

We flag a predicted high at or above 12.0 ft MLLW (NOAA's minor high-tide flooding threshold for this station). We flag a predicted low at or below −1.0 ft MLLW. Mean higher high water is 9.9 ft.

No predicted tide in the next few days crosses either line.

Official sources

Predictions are astronomical tides. Wind and pressure can move the real water level a foot or more. NOAA's sensor here read 9.3 ft at 1:18 AM.

Nearby stations

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Portland, ME: common questions

When is the next high tide at Portland, ME?

NOAA predicts the next high tide at Portland, ME at Fri 1:16 PM EST, 9.3 ft above mean lower low water (MLLW).

When is the next low tide at Portland, ME?

The next predicted low tide is at Fri 7:05 AM EST, 1.7 ft relative to MLLW.

What is the water temperature at Portland, ME?

NOAA's sensor at station 8418150 read 51°F at Fri 1:18 AM EST.

Is there a marine alert for Portland, ME right now?

Yes: Small Craft Advisory (National Weather Service).

What are these tide heights measured from?

Heights are in feet above mean lower low water (MLLW), the average of the lower of the two daily low tides. A negative number means the water is below that average.

How do I get an email when something happens at Portland, ME?

Enter your email at the top of this page. You get one confirmation email, then nothing until the NWS issues a marine or coastal alert here or the tide is predicted unusually high or low. Unsubscribe in one click.