Maine tide station

Portland tide times

Today, Sunday, October 18, 2026: high tide at 5:17 AM (7.6 ft) and 5:22 PM (8.5 ft); low tide at 11:04 AM (2.3 ft) and 11:52 PM (1.6 ft). Water temperature 54.5 F at Portland.

NOAA station 8418150 · Reference station · MLLW datum · times in EDT · sunrise 6:59 AM, sunset 5:53 PM · first quarter (51% lit)

High tide▲

5:17AM

7.6FT MLLW

high

Low tide▼

11:04AM

2.3FT MLLW

low

High tide▲

5:22PM

8.5FT MLLW

high

Low tide▼

11:52PM

1.6FT MLLW

low

predicted height above MLLWnightnow (build time; your browser updates it)

As of 5:20 AM the tide is falling toward low tide at 11:04 AM (2.3 ft).

First Quarter 51% litSunrise 6:59 AMSunset 5:53 PMDaylight 10h 53mEDT

High tide at Portland, Maine on October 18, 2026 is at 5:17 AM (7.6 ft above MLLW) and 5:22 PM (8.5 ft above MLLW).
Low tide at Portland on October 18, 2026 is at 11:04 AM (2.3 ft) and 11:52 PM (1.6 ft).
Today's tidal range at Portland is 6.9 ft (highest high 8.5 ft, lowest low 1.6 ft).
The nearest NOAA water temperature to Portland is 54.5 F at Portland, as of October 18, 2026.
Sunrise 6:59 AM, sunset 5:53 PM (EDT); moon first quarter, 51% illuminated.
Predictions are NOAA CO-OPS tide predictions for station 8418150 (harmonic reference station), heights above MLLW.

Next 7 days at Portland

Date	Tide 1	Tide 2	Tide 3	Tide 4	Sunrise	Sunset	Moon
Sun Oct 18today	5:17 AM7.6 ft	11:04 AM2.3 ft	5:22 PM8.5 ft	11:52 PM1.6 ft	6:59 AM	5:53 PM	51%
Mon Oct 19	6:13 AM7.6 ft	12:01 PM2.3 ft	6:20 PM8.5 ft		7:00 AM	5:51 PM	61%
Tue Oct 20	12:47 AM1.5 ft	7:09 AM7.8 ft	1:01 PM2.2 ft	7:17 PM8.6 ft	7:02 AM	5:50 PM	71%
Wed Oct 21	1:40 AM1.4 ft	8:00 AM8.2 ft	1:57 PM1.8 ft	8:12 PM8.8 ft	7:03 AM	5:48 PM	80%
Thu Oct 22	2:28 AM1.1 ft	8:46 AM8.7 ft	2:49 PM1.2 ft	9:01 PM9.1 ft	7:04 AM	5:47 PM	88%
Fri Oct 23	3:11 AM0.7 ft	9:27 AM9.3 ft	3:35 PM0.6 ft	9:47 PM9.4 ft	7:05 AM	5:45 PM	94%
Sat Oct 24	3:51 AM0.4 ft	10:06 AM9.9 ft	4:18 PM-0.0 ft	10:30 PM9.6 ft	7:07 AM	5:43 PM	98%

Water temperature near Portland

54.5 F (12.5 C)

NOAA CO-OPS station 8418150 (this station's own sensor), read 5:00 AM local, October 18, 2026

Over the past 30 days this sensor ranged from 54.5 to 62.8 F. Typical for October here is 57.2 F (5-year hourly mean; range 52.2 to 61.9), so today is 2.7 F below typical.

Water temperature is the nearest NOAA reading to Portland, not a measurement at the tide gauge itself. See water temperature by state for every sensor and buoy.

Tide tables

High (▲) and low (▼) tides in EDT with sunrise, sunset and moon illumination. CSV of today's tides for every Maine station.

October 2026 tide table

Date	Tide 1	Tide 2	Tide 3	Tide 4	Sunrise	Sunset	Moon
Thu Oct 1					6:39 AM	6:22 PM	72%
Fri Oct 2					6:40 AM	6:21 PM	62%
Sat Oct 3					6:41 AM	6:19 PM	52%
Sun Oct 4					6:42 AM	6:17 PM	41%
Mon Oct 5					6:44 AM	6:15 PM	31%
Tue Oct 6					6:45 AM	6:13 PM	22%
Wed Oct 7					6:46 AM	6:12 PM	14%
Thu Oct 8					6:47 AM	6:10 PM	7%
Fri Oct 9					6:48 AM	6:08 PM	3%
Sat Oct 10					6:49 AM	6:06 PM	0%
Sun Oct 11					6:51 AM	6:05 PM	0%
Mon Oct 12					6:52 AM	6:03 PM	2%
Tue Oct 13					6:53 AM	6:01 PM	7%
Wed Oct 14					6:54 AM	6:00 PM	13%
Thu Oct 15					6:56 AM	5:58 PM	21%
Fri Oct 16	3:31 AM8.1 ft	9:19 AM1.9 ft	3:32 PM9.0 ft	10:03 PM1.2 ft	6:57 AM	5:56 PM	30%
Sat Oct 17	4:22 AM7.8 ft	10:09 AM2.2 ft	4:25 PM8.7 ft	10:56 PM1.4 ft	6:58 AM	5:55 PM	40%
Sun Oct 18today	5:17 AM7.6 ft	11:04 AM2.3 ft	5:22 PM8.5 ft	11:52 PM1.6 ft	6:59 AM	5:53 PM	51%
Mon Oct 19	6:13 AM7.6 ft	12:01 PM2.3 ft	6:20 PM8.5 ft		7:00 AM	5:51 PM	61%
Tue Oct 20	12:47 AM1.5 ft	7:09 AM7.8 ft	1:01 PM2.2 ft	7:17 PM8.6 ft	7:02 AM	5:50 PM	71%
Wed Oct 21	1:40 AM1.4 ft	8:00 AM8.2 ft	1:57 PM1.8 ft	8:12 PM8.8 ft	7:03 AM	5:48 PM	80%
Thu Oct 22	2:28 AM1.1 ft	8:46 AM8.7 ft	2:49 PM1.2 ft	9:01 PM9.1 ft	7:04 AM	5:47 PM	88%
Fri Oct 23	3:11 AM0.7 ft	9:27 AM9.3 ft	3:35 PM0.6 ft	9:47 PM9.4 ft	7:05 AM	5:45 PM	94%
Sat Oct 24	3:51 AM0.4 ft	10:06 AM9.9 ft	4:18 PM-0.0 ft	10:30 PM9.6 ft	7:07 AM	5:43 PM	98%
Sun Oct 25	4:31 AM0.2 ft	10:45 AM10.4 ft	5:02 PM-0.6 ft	11:15 PM9.8 ft	7:08 AM	5:42 PM	100%
Mon Oct 26	5:13 AM-0.0 ft	11:25 AM10.8 ft	5:46 PM-1.0 ft		7:09 AM	5:40 PM	99%
Tue Oct 27	12:00 AM9.9 ft	5:56 AM-0.1 ft	12:08 PM11.1 ft	6:32 PM-1.2 ft	7:11 AM	5:39 PM	97%
Wed Oct 28	12:47 AM9.9 ft	6:42 AM-0.1 ft	12:55 PM11.2 ft	7:21 PM-1.2 ft	7:12 AM	5:38 PM	92%
Thu Oct 29	1:36 AM9.7 ft	7:31 AM0.1 ft	1:44 PM11.1 ft	8:13 PM-1.0 ft	7:13 AM	5:36 PM	85%
Fri Oct 30	2:29 AM9.4 ft	8:23 AM0.4 ft	2:38 PM10.8 ft	9:09 PM-0.6 ft	7:14 AM	5:35 PM	77%
Sat Oct 31	3:27 AM9.1 ft	9:21 AM0.7 ft	3:39 PM10.4 ft	10:11 PM-0.3 ft	7:16 AM	5:33 PM	68%

November 2026 tide table

Date	Tide 1	Tide 2	Tide 3	Tide 4	Sunrise	Sunset	Moon
Sun Nov 1	3:32 AM8.9 ft	9:26 AM1.0 ft	3:46 PM10.0 ft	10:17 PM0.0 ft	6:17 AM	4:32 PM	57%
Mon Nov 2	4:40 AM8.8 ft	10:36 AM1.1 ft	4:56 PM9.7 ft	11:23 PM0.2 ft	6:18 AM	4:31 PM	46%
Tue Nov 3	5:46 AM9.0 ft	11:47 AM1.0 ft	6:05 PM9.5 ft		6:20 AM	4:29 PM	36%
Wed Nov 4	12:28 AM0.3 ft	6:49 AM9.2 ft	12:57 PM0.8 ft	7:12 PM9.4 ft	6:21 AM	4:28 PM	26%
Thu Nov 5	1:27 AM0.3 ft	7:45 AM9.6 ft	1:58 PM0.4 ft	8:11 PM9.4 ft	6:22 AM	4:27 PM	17%
Fri Nov 6	2:20 AM0.3 ft	8:35 AM9.9 ft	2:52 PM0.0 ft	9:04 PM9.4 ft	6:24 AM	4:25 PM	10%
Sat Nov 7	3:07 AM0.4 ft	9:21 AM10.1 ft	3:40 PM-0.2 ft	9:52 PM9.4 ft	6:25 AM	4:24 PM	5%
Sun Nov 8	3:50 AM0.5 ft	10:02 AM10.2 ft	4:24 PM-0.3 ft	10:37 PM9.2 ft	6:26 AM	4:23 PM	1%
Mon Nov 9	4:31 AM0.7 ft	10:42 AM10.2 ft	5:06 PM-0.3 ft	11:19 PM9.1 ft	6:28 AM	4:22 PM	0%
Tue Nov 10	5:09 AM1.0 ft	11:20 AM10.0 ft	5:45 PM-0.1 ft		6:29 AM	4:21 PM	1%
Wed Nov 11	12:00 AM8.8 ft	5:47 AM1.2 ft	11:58 AM9.8 ft	6:24 PM0.1 ft	6:30 AM	4:20 PM	4%
Thu Nov 12	12:39 AM8.6 ft	6:25 AM1.4 ft	12:36 PM9.6 ft	7:03 PM0.4 ft	6:32 AM	4:19 PM	10%
Fri Nov 13	1:19 AM8.3 ft	7:05 AM1.7 ft	1:16 PM9.3 ft	7:44 PM0.7 ft	6:33 AM	4:18 PM	17%
Sat Nov 14	2:02 AM8.1 ft	7:47 AM1.9 ft	1:59 PM9.1 ft	8:28 PM0.9 ft	6:34 AM	4:17 PM	25%
Sun Nov 15	2:48 AM7.9 ft	8:34 AM2.0 ft	2:47 PM8.8 ft	9:15 PM1.1 ft	6:35 AM	4:16 PM	35%
Mon Nov 16	3:38 AM7.8 ft	9:25 AM2.1 ft	3:39 PM8.6 ft	10:04 PM1.2 ft	6:37 AM	4:15 PM	45%
Tue Nov 17	4:28 AM7.9 ft	10:19 AM2.1 ft	4:32 PM8.5 ft	10:53 PM1.3 ft	6:38 AM	4:14 PM	56%
Wed Nov 18	5:17 AM8.1 ft	11:14 AM1.9 ft	5:27 PM8.5 ft	11:42 PM1.2 ft	6:39 AM	4:13 PM	66%
Thu Nov 19	6:06 AM8.5 ft	12:11 PM1.5 ft	6:23 PM8.5 ft		6:41 AM	4:12 PM	76%
Fri Nov 20	12:32 AM1.0 ft	6:54 AM9.0 ft	1:06 PM1.0 ft	7:17 PM8.7 ft	6:42 AM	4:11 PM	84%
Sat Nov 21	1:21 AM0.8 ft	7:40 AM9.6 ft	1:58 PM0.3 ft	8:09 PM9.0 ft	6:43 AM	4:11 PM	91%
Sun Nov 22	2:08 AM0.5 ft	8:24 AM10.2 ft	2:47 PM-0.3 ft	8:59 PM9.3 ft	6:44 AM	4:10 PM	96%
Mon Nov 23	2:55 AM0.2 ft	9:09 AM10.8 ft	3:35 PM-0.9 ft	9:48 PM9.5 ft	6:46 AM	4:09 PM	99%
Tue Nov 24	3:42 AM0.0 ft	9:56 AM11.2 ft	4:24 PM-1.3 ft	10:38 PM9.7 ft	6:47 AM	4:09 PM	100%
Wed Nov 25	4:31 AM-0.1 ft	10:45 AM11.4 ft	5:14 PM-1.5 ft	11:29 PM9.8 ft	6:48 AM	4:08 PM	98%
Thu Nov 26	5:22 AM-0.2 ft	11:37 AM11.5 ft	6:06 PM-1.5 ft		6:49 AM	4:08 PM	95%
Fri Nov 27	12:22 AM9.7 ft	6:15 AM-0.1 ft	12:30 PM11.3 ft	7:00 PM-1.3 ft	6:50 AM	4:07 PM	89%
Sat Nov 28	1:17 AM9.6 ft	7:10 AM0.1 ft	1:27 PM11.0 ft	7:56 PM-1.0 ft	6:51 AM	4:07 PM	81%
Sun Nov 29	2:15 AM9.4 ft	8:10 AM0.4 ft	2:27 PM10.5 ft	8:56 PM-0.6 ft	6:53 AM	4:06 PM	73%
Mon Nov 30	3:18 AM9.3 ft	9:15 AM0.6 ft	3:33 PM10.0 ft	9:57 PM-0.2 ft	6:54 AM	4:06 PM	63%

Tidal datums at Portland

Heights on this page are above mean lower low water (MLLW), the chart datum. NOAA's accepted datums for station 8418150, in feet above MLLW:

MHHW

18.46 ft

Mean higher high water

MHW

18.02 ft

Mean high water

MSL

13.49 ft

Mean sea level

MLW

8.90 ft

Mean low water

9.12 ft

Mean range

9.90 ft

Diurnal range

Highest observed water level: 23.11 ft above MLLW on January 13, 2024. Tidal datum epoch 1983-2001.

Nearby tide stations

Back Cove1.4 mi · next high 5:24 PM
Presumpscot River Bridge2.0 mi · next high 5:23 PM
Peak Island2.2 mi · next high 5:18 PM
Fore River2.3 mi · next high 5:24 PM
Great Diamond Island2.4 mi · next high 5:22 PM
Cushing Island2.5 mi · next high 5:23 PM

Questions

What time is high tide at Portland today?

High tide at Portland, Maine on Sunday, October 18, 2026 is at 5:17 AM (7.6 ft above MLLW) and 5:22 PM (8.5 ft above MLLW), NOAA prediction, local time.

What time is low tide at Portland today?

Low tide at Portland on Sunday, October 18, 2026 is at 11:04 AM (2.3 ft) and 11:52 PM (1.6 ft).

What is the water temperature at Portland?

The nearest NOAA water-temperature reading to Portland is 54.5 F at Portland, as of October 18, 2026.

Not for navigation. Predictions do not include weather; wind and pressure can move the real water level by a foot or more. Source: NOAA CO-OPS station 8418150.