New Hampshire

How's the tide at Portsmouth today?

High water today at 1:20 am (8.8 ft) and 1:39 pm (8.9 ft). Low water at 7:21 am (-0.2 ft) and 7:46 pm (-0.3 ft).

Times are local to Portsmouth (America/New_York). Heights are feet above MLLW.

Portsmouth — today and tomorrow

TodaySunday, September 13

Boating GoodBeach PoorFishing Fair
00h06h12h18h00h1:20 am7:21 am1:39 pm7:46 pm
Interpolated between the official NOAA predictions above — not a measured hourly curve.
TideTimeHeight
High1:20 am8.8 ft
Low7:21 am-0.2 ft
High1:39 pm8.9 ft
Low7:46 pm-0.3 ft

Sunrise 6:20 am · Sunset 6:56 pm · Moon 7% · Air 60–68 °F · Wind 1–5 kn · Rain 93% · Mostly cloudy

Monday, September 14

Boating GoodBeach FairFishing Good
00h06h12h18h00h2:05 am8:02 am2:20 pm8:31 pm
Interpolated between the official NOAA predictions above — not a measured hourly curve.
TideTimeHeight
High2:05 am8.5 ft
Low8:02 am0.2 ft
High2:20 pm8.7 ft
Low8:31 pm-0.1 ft

Sunrise 6:21 am · Sunset 6:54 pm · Moon 14% · Air 55–71 °F · Wind 2–10 kn · Rain 28% · Mostly sunny

Portsmouth tide chart — next seven days

Today — Sunday, September 13

TideTimeHeightRelative height
High1:20 am8.8 ft
Low7:21 am-0.2 ft
High1:39 pm8.9 ft
Low7:46 pm-0.3 ft

Monday, September 14

TideTimeHeightRelative height
High2:05 am8.5 ft
Low8:02 am0.2 ft
High2:20 pm8.7 ft
Low8:31 pm-0.1 ft

Tuesday, September 15

TideTimeHeightRelative height
High2:50 am8.0 ft
Low8:43 am0.6 ft
High3:01 pm8.4 ft
Low9:17 pm0.3 ft

Wednesday, September 16

TideTimeHeightRelative height
High3:36 am7.6 ft
Low9:26 am1.1 ft
High3:46 pm8.1 ft
Low10:06 pm0.6 ft

Thursday, September 17

TideTimeHeightRelative height
High4:26 am7.1 ft
Low10:13 am1.5 ft
High4:35 pm7.8 ft
Low10:58 pm1.0 ft

Friday, September 18

TideTimeHeightRelative height
High5:21 am6.8 ft
Low11:05 am1.8 ft
High5:29 pm7.5 ft
Low11:55 pm1.3 ft

Saturday, September 19

TideTimeHeightRelative height
High6:18 am6.5 ft
Low12:01 pm2.0 ft
High6:27 pm7.3 ft

Three turns fall on this date. The next one lands after midnight and is listed under the following day.

Portsmouth tides — month by month

Every high and low water for September 2026 and October 2026.

Portsmouth tide calendar — September 2026

DayHigh waterLow water
1 Tue2:34 am (8.3), 2:52 pm (8.8)8:35 am (0.1), 9:05 pm (-0.1)
2 Wed3:20 am (8.1), 3:37 pm (8.8)9:19 am (0.3), 9:56 pm (0.0)
3 Thu4:12 am (7.8), 4:29 pm (8.7)10:08 am (0.5), 10:52 pm (0.1)
4 Fri5:10 am (7.5), 5:28 pm (8.6)11:04 am (0.8), 11:55 pm (0.3)
5 Sat6:15 am (7.2), 6:34 pm (8.5)12:06 pm (1.0)
6 Sun7:25 am (7.2), 7:44 pm (8.5)1:03 am (0.4), 1:14 pm (1.0)
7 Mon8:36 am (7.3), 8:54 pm (8.7)2:14 am (0.2), 2:25 pm (0.8)
8 Tue9:39 am (7.7), 9:56 pm (9.0)3:20 am (0.0), 3:31 pm (0.5)
9 Wed10:35 am (8.1), 10:52 pm (9.2)4:17 am (-0.3), 4:29 pm (0.1)
10 Thu11:26 am (8.5), 11:44 pm (9.2)5:08 am (-0.5), 5:23 pm (-0.2)
11 Fri12:13 pm (8.8)5:55 am (-0.6), 6:13 pm (-0.4)
12 Sat12:33 am (9.1), 12:57 pm (8.9)6:39 am (-0.5), 7:01 pm (-0.4)
13 Sun · today1:20 am (8.8), 1:39 pm (8.9)7:21 am (-0.2), 7:46 pm (-0.3)
14 Mon2:05 am (8.5), 2:20 pm (8.7)8:02 am (0.2), 8:31 pm (-0.1)
15 Tue2:50 am (8.0), 3:01 pm (8.4)8:43 am (0.6), 9:17 pm (0.3)
16 Wed3:36 am (7.6), 3:46 pm (8.1)9:26 am (1.1), 10:06 pm (0.6)
17 Thu4:26 am (7.1), 4:35 pm (7.8)10:13 am (1.5), 10:58 pm (1.0)
18 Fri5:21 am (6.8), 5:29 pm (7.5)11:05 am (1.8), 11:55 pm (1.3)
19 Sat6:18 am (6.5), 6:27 pm (7.3)12:01 pm (2.0)
20 Sun7:18 am (6.5), 7:28 pm (7.3)12:56 am (1.4), 1:01 pm (2.0)
21 Mon8:17 am (6.6), 8:26 pm (7.5)1:57 am (1.4), 2:02 pm (1.9)
22 Tue9:09 am (6.8), 9:18 pm (7.7)2:52 am (1.2), 2:58 pm (1.6)
23 Wed9:55 am (7.2), 10:04 pm (8.0)3:38 am (0.9), 3:45 pm (1.2)
24 Thu10:34 am (7.6), 10:46 pm (8.3)4:17 am (0.6), 4:27 pm (0.8)
25 Fri11:11 am (8.0), 11:26 pm (8.5)4:53 am (0.3), 5:08 pm (0.3)
26 Sat11:47 am (8.4)5:29 am (0.1), 5:48 pm (-0.1)
27 Sun12:06 am (8.6), 12:23 pm (8.8)6:05 am (-0.1), 6:29 pm (-0.4)
28 Mon12:47 am (8.6), 1:01 pm (9.1)6:44 am (-0.1), 7:12 pm (-0.6)
29 Tue1:29 am (8.5), 1:41 pm (9.2)7:25 am (-0.1), 7:57 pm (-0.6)
30 Wed2:14 am (8.4), 2:25 pm (9.2)8:08 am (0.1), 8:45 pm (-0.5)

Times local to Portsmouth, heights in feet above MLLW.

Portsmouth tide calendar — October 2026

DayHigh waterLow water
1 Thu3:03 am (8.1), 3:15 pm (9.0)8:57 am (0.3), 9:39 pm (-0.3)
2 Fri3:59 am (7.7), 4:12 pm (8.8)9:51 am (0.6), 10:39 pm (0.0)
3 Sat5:02 am (7.5), 5:17 pm (8.6)10:52 am (0.9), 11:45 pm (0.2)
4 Sun6:10 am (7.3), 6:27 pm (8.4)11:59 am (1.1)
5 Mon7:20 am (7.4), 7:39 pm (8.4)12:54 am (0.3), 1:11 pm (1.0)
6 Tue8:28 am (7.6), 8:47 pm (8.5)2:04 am (0.3), 2:22 pm (0.8)
7 Wed9:27 am (8.0), 9:47 pm (8.6)3:06 am (0.1), 3:26 pm (0.4)
8 Thu10:19 am (8.4), 10:40 pm (8.7)3:59 am (-0.1), 4:21 pm (0.0)
9 Fri11:05 am (8.7), 11:30 pm (8.7)4:47 am (-0.1), 5:11 pm (-0.2)
10 Sat11:49 am (8.9)5:31 am (-0.1), 5:58 pm (-0.4)
11 Sun12:16 am (8.5), 12:29 pm (8.9)6:12 am (0.1), 6:41 pm (-0.4)
12 Mon1:00 am (8.3), 1:08 pm (8.8)6:52 am (0.4), 7:23 pm (-0.3)
13 Tue1:42 am (8.0), 1:46 pm (8.6)7:31 am (0.7), 8:04 pm (0.0)
14 Wed2:23 am (7.7), 2:25 pm (8.3)8:10 am (1.0), 8:46 pm (0.3)
15 Thu3:06 am (7.3), 3:07 pm (8.0)8:51 am (1.3), 9:30 pm (0.7)
16 Fri3:53 am (7.0), 3:54 pm (7.7)9:36 am (1.6), 10:20 pm (1.0)
17 Sat4:44 am (6.7), 4:47 pm (7.5)10:26 am (1.9), 11:13 pm (1.2)
18 Sun5:39 am (6.6), 5:44 pm (7.3)11:21 am (2.0)
19 Mon6:35 am (6.6), 6:42 pm (7.3)12:09 am (1.3), 12:18 pm (2.0)
20 Tue7:31 am (6.7), 7:39 pm (7.4)1:04 am (1.3), 1:18 pm (1.9)
21 Wed8:22 am (7.0), 8:34 pm (7.6)1:57 am (1.2), 2:14 pm (1.5)
22 Thu9:08 am (7.5), 9:23 pm (7.8)2:45 am (0.9), 3:06 pm (1.1)
23 Fri9:49 am (8.0), 10:09 pm (8.1)3:28 am (0.6), 3:52 pm (0.5)
24 Sat10:28 am (8.5), 10:52 pm (8.3)4:08 am (0.4), 4:35 pm (0.0)
25 Sun11:07 am (9.0), 11:37 pm (8.5)4:48 am (0.1), 5:19 pm (-0.5)
26 Mon11:47 am (9.3)5:30 am (0.0), 6:03 pm (-0.9)
27 Tue12:22 am (8.5), 12:30 pm (9.6)6:13 am (-0.1), 6:49 pm (-1.0)
28 Wed1:09 am (8.5), 1:17 pm (9.6)6:59 am (-0.1), 7:38 pm (-1.0)
29 Thu1:58 am (8.3), 2:06 pm (9.5)7:48 am (0.1), 8:30 pm (-0.9)
30 Fri2:51 am (8.1), 3:00 pm (9.3)8:40 am (0.3), 9:26 pm (-0.6)
31 Sat3:49 am (7.8), 4:01 pm (8.9)9:38 am (0.6), 10:28 pm (-0.2)

Times local to Portsmouth, heights in feet above MLLW.

Wind and weather at Portsmouth

Seven days from the National Weather Service forecast for this stretch of coast. Each row is the range across the whole day, not a reading for one moment.

DayWindGustsAirSkyRain
Today1–5 kn S10 kn60–68 °FMostly cloudy93 %
Mon, September 142–10 kn NW19 kn55–71 °FMostly sunny28 %
Tue, September 152–4 kn N8 kn50–66 °FClear0 %
Wed, September 161–4 kn S8 kn52–75 °FMostly sunny1 %
Thu, September 171–4 kn E8 kn60–69 °FPartly cloudy34 %
Fri, September 181–6 kn WSW12 kn60–74 °FPartly cloudy32 %
Sat, September 193–6 kn NNE12 kn55–69 °FPartly cloudy29 %

Source: NOAA National Weather Service, forecast office GYX. Public domain. Wind in knots, from the direction given. The forecast grid for this place carries no wave heights, so none are shown.

Boating, beach and fishing at Portsmouth

The same forecast as above, read for three things people do here. Each verdict names what decided it.

DayBoatingBeachFishing
TodayGoodwind 5 kn or lessPoor93% chance of rainFair93% chance of rain
Mon, September 14Goodwind 10 kn or lessFair71 °FGoodlight wind, major window in daylight
Tue, September 15Goodwind 4 kn or lessFair66 °FGoodlight wind, major window in daylight
Wed, September 16Goodwind 4 kn or lessGood75 °F and dryGoodlight wind, major window in daylight
Thu, September 17Goodwind 4 kn or lessFair34% chance of rainGoodlight wind, major window in daylight
Fri, September 18Goodwind 6 kn or lessFair32% chance of rainGoodlight wind, major window in daylight
Sat, September 19Goodwind 6 kn or lessFair69 °FGoodlight wind, major window in daylight

Boating turns to Poor at the National Weather Service small craft threshold — sustained wind of 22 kn, gusts of 26 kn, or seas of 5 ft — and to Fair at 15 kn or 3 ft. Beach weighs air temperature, chance of rain and wind.Fishing asks whether the day is fishable at all and whether a solunar major window falls in daylight; it is not a prediction of what will bite. None of this replaces the marine forecast before you go out.

Sun and moon

Today

Sunrise 6:20 am · Sunset 6:56 pm
Moon 7% lit, waxing

Tomorrow

Sunrise 6:21 am · Sunset 6:54 pm
Moon 14% lit, waxing

Solunar windows for Portsmouth

The moon pulls hardest when it is directly overhead or on the far side of the earth — the two major windows of about two hours. The shorter minor windows sit around moonrise and moonset. Anglers use them to pick a time on the water; they are computed from the moon's position, not measured.

Today — Sunday, September 13

  • Major1:09 am – 3:09 amMoon underfoot
  • Minor8:38 am – 9:38 amMoonrise
  • Major1:32 pm – 3:32 pmMoon overhead
  • Minor7:16 pm – 8:16 pmMoonset

Monday, September 14

  • Major1:55 am – 3:55 amMoon underfoot
  • Minor9:47 am – 10:47 amMoonrise
  • Major2:18 pm – 4:18 pmMoon overhead
  • Minor7:40 pm – 8:40 pmMoonset

Times are local to Portsmouth (America/New_York).

Questions about Portsmouth tides

Answered from the same NOAA predictions as the table above; the solunar windows come from this page's own moon calculation. Where this page has no basis for an answer, there is no entry.

What time is high tide in Portsmouth today?
High water at 1:20 am (8.8 ft) and 1:39 pm (8.9 ft), local time in Portsmouth. Heights are feet above MLLW. Because the tide runs on the moon rather than the clock, each turn falls roughly 50 minutes later tomorrow — the seven-day table above carries the shift.
What time is low tide in Portsmouth today?
Low water at 7:21 am (-0.2 ft) and 7:46 pm (-0.3 ft), local time in Portsmouth. A height below zero is a minus tide: the water falls further than MLLW, the level the heights are counted from.
How many tides does Portsmouth get in a day?
Two high waters and two low waters on most days, a little over six hours apart. Over the seven days on this page that comes to 14 high waters and 13 low waters.
What is the tidal range at Portsmouth?
About 9.2 ft between today's lowest and highest water. Across the next seven days the water moves between -0.3 and 8.9 ft — a span of about 9.2 ft. The range is widest around new and full moon and narrowest at the quarters, so it changes from week to week.
Which tide station do these Portsmouth tide times come from?
NOAA station 8423745 — a subordinate station, about 3 km from the centre of Portsmouth. Portsmouth in Virginia is a different place. A subordinate station carries no gauge of its own: NOAA publishes its times as an offset from a nearby reference station, which is how the agency itself issues them. The predictions here are NOAA's, unchanged.
What time zone are the Portsmouth tide times in?
Every time on this page is clock time in Portsmouth — the America/New_York zone, daylight saving already applied. Nothing has to be converted, and no time is shown in UTC except the retrieval stamp at the foot of the page.
When are the solunar windows at Portsmouth today?
The major windows run 1:09 am to 3:09 am and 1:32 pm to 3:32 pm, with shorter minor windows around moonrise and moonset. They are computed from the moon's position over Portsmouth, not measured — anglers use them to pick a time on the water. The moon is 7% lit and waxing.
How far ahead does this Portsmouth tide chart go?
Seven days in the table, and every high and low water for September 2026 and October 2026 in the calendar below it. The page is rebuilt every morning, so the first day is always today.

Portsmouth on the map

Portsmouth and the 6 nearest places with their own NOAA station. Every marker opens that place’s tide chart.

Coastal map

Choose a place on the map

Every marker opens its local tide chart.

New Hampshire tide chart locationsA clickable map of the 7 places covered in New Hampshire.PortsmouthKitteryYorkHampton BeachSalisburyPlum IslandNewburyport

Nearby tide charts

Where these times come from

Source
NOAA Center for Operational Oceanographic Products and Services — station 8423745, Portsmouth (subordinate station)
Datum
MLLW — heights in feet above mean lower low water
Distance
3 km from the centre of Portsmouth
Retrieved
Sep 13, 2026, 2:27 PM UTC
Licence
Public domain (US federal government data). NOS requests that attribution be given whenever NOS material is reproduced and re-disseminated.

Portsmouth in Virginia is a different place.

Predictions are issued by NOAA. The official NOAA data are authoritative. Not for navigation. Check the official NOAA station page before you rely on these times on the water.