Merrimac tides today
- Tide now -0.2 ft ↓ falling · low 9:33 pm (-0.5 ft)
- Best time tomorrow 2:50–4:30 pm good day · 8/10
- Beach tomorrow 3:00–5:00 pm Fair beach day · 5/10
- Waves 1.0 ft smooth · 5.8 s from the east
- Wind · air 4 mph · 43 °F from the SSW, gusts 12 · clear
- Sun 7:13 am–5:42 pm 10 h 28 min of daylight
- Moon 91% · 7:08 pm waning gibbous · rises at 7:08 pm
- Diving tomorrow 8:30–10:30 am great day · 10/10
Today in Merrimac there are high tides at 2:24 am (7.1 ft) and 2:42 pm (8.6 ft) and low tides at 8:51 am and 9:33 pm. Tide coefficient 83. Right now the tide is falling toward the low tide at 9:33 pm. The sun rises at 7:13 am and sets at 5:42 pm: 10 h 28 min of daylight. The moon is 91% illuminated (waning gibbous) and rises at 7:08 pm. Major solunar periods run from 1:18 am to 3:18 am and from 1:50 pm to 3:50 pm. The next spring tides arrive from October 26 to 28. The sea is smooth, with 1.0 ft waves. There's a light breeze from the south-southwest (4 mph). Clear, 43 °F.
Fishing in Merrimac today
Best time to fish
Solunar activity today: high- High tide at 2:42 pm, coefficient 83
- Major period 1:50–3:50 pm
- Steady pressure (30.42 inHg), almost no wind and calm sea (1.3 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 83 (average tides)
Your day at a glance
The best window, 1:50 pm to 3:40 pm, combines the 2:42 pm high tide and a major period. Also worth a try from 1:20 am to 3:20 am, with the 2:24 am high tide, a major period and some swell, though with rising pressure.
Species with the most records nearby: winter flounder, Atlantic cod, longfin inshore squid and haddock. October is one of the months when these are seen most: winter flounder and longfin inshore squid. What you can catch
Beach day in Merrimac
Is it a beach day?
- Sun and clouds
- Offshore breeze (5 mph)
- Calm for swimming: 1.8 ft waves
- Low tide at 8:51 am: more sand
- Feels like 50 °F: chilly for the beach
- High tide at 2:42 pm
Today, hour by hour
- Swimming Calm · 1.8 ft
1.8 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water
No water temperature data.
- Sun & sunscreen UV 3 · SPF 15
Max UV 3 (low): SPF 15 sunscreen.
- Wind 5 mph
Offshore breeze (5 mph).
- Tide & sand 9:33 pm
Low tide at 8:51 am and 9:33 pm: that's when there's the most sand. High tide at 2:24 am and 2:42 pm.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority. How it works · The next 7 days
Beaches near Merrimac
We don't know of any named beaches within 6.2 mi of Merrimac.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Merrimac
Webcams provided by windy.com — add a webcam
Tides in Merrimac
Today's high and low tides
- ▲ High tide 2:24 am 7.1 ft · coef. 83
- ▼ Low tide 8:51 am 0.3 ft
- ▲ High tide 2:42 pm 8.6 ft · coef. 83
- ▼ Next low tide 9:33 pm -0.5 ft
↓ Falling The tide is falling. 38 min to low tide at 9:33 pm.
Tide coefficient 83 for the 2:24 am high tide and 83 for the 2:42 pm high tide. Average coefficient. The water rises and falls 9.0 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?
2026 extremes: the highest tide of the year is on June 16 (8.8 ft) and the lowest, on December 25 (-0.9 ft).
Semidiurnal: two high and two low tides a day, of similar height.
Heights above mean lower low water (MLLW), the zero of US nautical charts. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. MLLW
Tide coefficient and range in October
The biggest tides of the month come from October 27 to 29 (coefficient 83, 9.0 ft range). The smallest, from October 18 to 20 (coefficient 52, 5.8 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Wed 28 | 7:13 am · 5:42 pm | High tide 2:24 am · 7.1 ft | Low tide 8:51 am · 0.3 ft | High tide 2:42 pm · 8.6 ft | Low tide 9:33 pm · -0.5 ft | Coef. 83 | 91% | Major periods 1:18 am · 1:50 pm | High |
| Thu 29 | 7:15 am · 5:40 pm | High tide 3:14 am · 7.0 ft | Low tide 9:39 am · 0.4 ft | High tide 3:32 pm · 8.6 ft | Low tide 10:26 pm · -0.4 ft | Coef. 83 | 84% | Major periods 2:22 am · 2:54 pm | Medium |
| Fri 30 | 7:16 am · 5:39 pm | High tide 4:06 am · 6.8 ft | Low tide 10:33 am · 0.5 ft | High tide 4:26 pm · 8.4 ft | Low tide 11:21 pm · -0.3 ft | Coef. 80 | 74% | Major periods 3:27 am · 3:58 pm | Medium |
| Sat 31 | 7:17 am · 5:38 pm | High tide 5:02 am · 6.7 ft | Low tide 11:31 am · 0.6 ft | High tide 5:23 pm · 8.2 ft | — | Coef. 77 | 63% | Major periods 4:29 am · 4:58 pm | Medium |
| Sun 1 | 6:18 am · 4:36 pm | Low tide 12:19 am · -0.1 ft | High tide 5:00 am · 6.6 ft | Low tide 11:32 am · 0.7 ft | High tide 5:22 pm · 7.9 ft | Coef. 73 | Last quarter | Major periods 4:27 am · 4:54 pm | Medium |
| Mon 2 | 6:20 am · 4:35 pm | Low tide 12:17 am · 0.0 ft | High tide 6:00 am · 6.5 ft | Low tide 12:34 pm · 0.7 ft | High tide 6:22 pm · 7.6 ft | Coef. 70 | 41% | Major periods 5:20 am · 5:45 pm | Medium |
| Tue 3 | 6:21 am · 4:34 pm | Low tide 1:14 am · 0.1 ft | High tide 7:00 am · 6.6 ft | Low tide 1:36 pm · 0.6 ft | High tide 7:24 pm · 7.3 ft | Coef. 69 | 30% | Major periods 6:09 am · 6:32 pm | Medium |
▲ high tide · ▼ low tide · heights above MLLW. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Where this tide comes from
Tides from the Merrimacport station (NOAA), 0.8 mi from Merrimac. Times and heights are its predictions.
Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)
The sea at Merrimac
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.5 ft
- Significant1.0 ft
- Highest expectedHighest2.2 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 2.2 ft. Before heading out, expect waves of up to 2.2 ft.
Wind on the coast and offshore
Cross-onshore wind. The coast faces southeast and the wind comes in from the sea at an angle: a bit more surf at the shore and drift along the coast, toward land.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Wednesday 28: 2.2 ft with a period of 4 s, from the northeast (slight).
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 8:55 pm (local time).
Nearest buoy
This is a real measurement of the sea, not a forecast. Data from station 44074, NOAA National Data Buoy Center (public domain).
Diving in Merrimac today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (2:42 pm): little current from 2:20 pm to 3:00 pm
- 1.3 ft surface waves: easy entry and exit
- Almost no wind
- Sun high: more light underwater
- Slack water today: high tide 2:24 am (2:09–2:40 am), low tide 8:51 am (8:20–9:10 am), high tide 2:42 pm (2:20–3:00 pm) and low tide 9:33 pm (9:10–9:50 pm)
- Likely visibility: good. The sea has been calm and there's been little rain. Based on the last 24 hours of data.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 6:11 pm. Waning gibbous (91%), rising at 7:08 pm: a bright night.
Your diving day at a glance
The best window, 1:50 pm to 3:30 pm, combines slack water at high tide, small waves, light wind and the sun high. Also good from 7:50 am to 9:40 am, with slack water at low tide, small waves and light wind.
Slack water comes from the tide: in inlets, channels and between islands the water can keep running for an hour or two after. Ask the local dive shop.
Never dive alone and check with the local dive shop: this rating is a guide, not a substitute for a professional.
Dive sites, wrecks and dive shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
Within 12 mi. Some may be missing or closed; marine reserves usually need a permit. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap
Sites: © OpenStreetMap contributors (ODbL).
Weather in Merrimac
Now in Merrimac
- Low / high
- 31 / 54 °F
- Rain
- 0.00 in · 1%
- Clouds
- 0%
- Humidity
- 84%
- Dew pointDew point
- 38 °F
- Visibility
- 10 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Good · 30
- Saharan dust
- No
Pressure and fishing
- ↗ RisingRising Anglers say fish bite less for a while
- → SteadySteady Anglers expect normal activity
- ↘ FallingFalling · now Anglers say fish feed more before the change
Falling now (−0.04 inHg in 3 hours). Over the next 48 hours: −0.24 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.
Today, hour by hourHour by hour
Bars: mean wind. Dashed line: gusts. Arrows point where the wind blows to.
| Time | 12:00 am | 3:00 am | 6:00 am | 9:00 am | 12:00 pm | 3:00 pm | 6:00 pm | 9:00 pm |
|---|---|---|---|---|---|---|---|---|
| Sky | Clear | Clear | Clear | Partly cloudy | Overcast | Partly cloudy | Partly cloudy | Clear |
| Temperature | 35° | 33° | 31° | 38° | 51° | 54° | 48° | 43° |
| Wind (mph) | 4 NW | 4 NNW | 5 NNW | 5 N | 3 ESE | 3 SSW | 4 ESE | 4 SSW |
| Gusts | 10 | 13 | 9 | 8 | 6 | 5 | 8 | 12 |
| Waves | 1.6 ft | 2.2 ft | 2.0 ft | 1.8 ft | 1.5 ft | 1.3 ft | 1.1 ft | 1.0 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in |
- 9:00 pm 43° 4 SSW 1.0 ft
- 12:00 am 41° 5 SW 1.0 ft
- 3:00 am 41° 5 SW 1.0 ft
- 6:00 am 42° 6 SW 0.9 ft
- 9:00 am 50° 8 SW 0.9 ft
- 12:00 pm 63° 11 SW 1.0 ft
- 3:00 pm 68° 8 SW 1.1 ft
- 6:00 pm 62° 6 SW 1.0 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 31 / 54 °F | 6 mph N | 2.2 ft | 2:24 am · 2:42 pm | |
| Thu 29 | 41 / 68 °F | 14 mph SW | 1.3 ft | 3:14 am · 3:32 pm | |
| Fri 30 | 45 / 66 °F | 10 mph W | 1.6 ft | 4:06 am · 4:26 pm | |
| Sat 31 | 34 / 55 °F | 7 mph NW | 1.6 ft | 5:02 am · 5:23 pm | |
| Sun 1 | 28 / 59 °F | 4 mph WSW | 0.8 ft | 5:00 am · 5:22 pm | |
| Mon 2 | 37 / 65 °F | 4 mph WSW | 0.9 ft | 6:00 am · 6:22 pm | |
| Tue 3 | 42 / 61 °F | 4 mph ENE | 1.2 ft | 7:00 am · 7:24 pm | |
| Wed 4 | 41 / 62 °F | 5 mph S | 1.6 ft | 8:01 am · 8:25 pm | |
| Thu 5 | 43 / 62 °F | 6 mph E | 1.0 ft | 8:58 am · 9:22 pm | |
| Fri 6 | 47 / 61 °F | 7 mph SE | 2.4 ft | 9:49 am · 10:14 pm | |
| Sat 7 | 42 / 58 °F | 6 mph NNW | 4.6 ft | 10:35 am · 11:01 pm | |
| Sun 8 | 37 / 56 °F | 8 mph NW | 4.1 ft | 11:17 am · 11:45 pm | |
| Mon 9 | 34 / 56 °F | 6 mph NW | 1.5 ft | 11:58 am | |
| Tue 10 | 36 / 52 °F | 7 mph NE | 1.8 ft | 12:27 am · 12:39 pm |
- Thu 29 Mainly clear 41° / 68° 1.3 ft
- Fri 30 Overcast 45° / 66° 1.6 ft
- Sat 31 Mainly clear 34° / 55° 1.6 ft
- Sun 1 Clear sky 28° / 59° 0.8 ft
- Mon 2 Overcast 37° / 65° 0.9 ft
- Tue 3 Overcast 42° / 61° 1.2 ft
- Wed 4 Overcast 41° / 62° 1.6 ft
Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.
- The models They agree · high confidence for the next few days. See the models →
- Outlook Next few weeks, compared with normal: warmer and normal rain. See the outlook →
- Normal Today, cooler than normal for late October (−2.9 °F; normal high: 57 °F). Climate by month →
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 8:55 pm (local time).
The sun in Merrimac
Sunrise and sunset
- First light 6:11 am
- Full dark 6:44 pm
- Civil dawn 6:44 am
- Civil dusk 6:11 pm
- Solar noon 12:28 pm (34° high)
- Daylight 10 h 28 min (−3 min)
- Evening golden hour 5:02 pm
- Full dark 6:44 pm
Golden hour and the day-night map
Today the sun is 92,355,043 mi away and looks 32′ 11″ across.
The moon in Merrimac
Moon phase and position
Today the moon is 226,429 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: high- 1:18–3:18 am Major · the moon passes overhead · high activity
- 1:50–3:50 pm Major · the moon passes underfoot · high activity
- 9:58–10:58 am Minor · moonset · medium activity
- 6:38–7:38 pm Minor · moonrise · medium activity
According to solunar theory, fish feed more when the moon passes overhead or underfoot (major periods, about 2 h) and when it rises or sets (minor periods, 1 h). It works best around new and full moon.
Upcoming moon phases
2026 moon calendar →- Last quarter Sun, Nov 1 · 3:29 pmNov 1 in 4 days
- New moon Mon, Nov 9 · 2:03 amNov 9 in 12 days
- First quarter Tue, Nov 17 · 6:48 amNov 17 in 20 days
- Full moon Tue, Nov 24 · 9:54 amNov 24 in 27 days
Perigee on October 28, 226,426 mi away, coinciding with the spring tides from October 26 to 28: they will be stronger than usual.
Where to fish in Merrimac
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Lagoon Overflow Box 4.4 mi
- The Boardwalk Trail 8.6 mi
- Jetty 3.6 mi
- Low-crested Dike 9.1 mi
- Boat ramp 1.3 mi
- Amesbury Public Boat Launch 3.9 mi
- Boat ramp 3.9 mi
- Goodwin Creek Marina 3.5 mi
- Marina at Hatter's Point 3.8 mi
- Merrimac Bait and Tackle 1.3 mi
- The Nuke's Bait and Tackle 1.3 mi
- Fuel dock 7.0 mi
Within 9.3 mi. A spot may be missing or closed. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap
Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.
Water depth
Shallow, gradualShallow, gradual bottom: 0 ft at 1,000 ft.
From the shoreline (0.6 mi from Merrimac) out to sea, heading southeast.
How far from shore
- 16 ft deepnot within 1,000 ft
- 33 ft deepnot within 1,000 ft
- 66 ft deepnot within 1,000 ft
- 164 ft deepnot within 1,000 ft
For fishing, swimming and diving
- Shore fishing. Very shallow: the water doesn't reach 16 ft within 1,000 ft. Cast far from the beach, ideally around high tide.
- Swimming. A very gentle way in with plenty of shallow water, good for kids. At low tide the water can be far out.
- Diving. Shallow: the water doesn't reach 33 ft within 1,000 ft. For deeper dives, take a boat farther out.
Inside bays, estuaries and harbors the bottom changes a lot from spot to spot (channels and shoals): use this only as a rough guide. There is land ahead (an island, a headland or the far shore) 1,000 ft out.
Source: NOAA U.S. Coastal Relief Model (public domain), cells of about 300 ft; depth below mean sea level. For reference only: not for navigation or anchoring.
Tides near MerrimacTides nearby
- West Newbury2.1 mi
- Groveland5.1 mi
- Haverhill5.3 mi
- Newburyport6.5 mi
- Seabrook Beach10 mi
- Hampton Beach11 mi
- Ipswich13 mi
- Newfields15 mi
- Stratham Station16 mi
- Greenland17 mi
Merrimac at a glance
- Town or city of about 6,245 people. Coordinates: 42.831° N, 71.002° W.
- It is 33 mi north of Boston, the main place in Massachusetts. The sun rises 1 min later and sets 1 min earlier than in Boston.
- The nearest tide station, Merrimacport, is 0.8 mi to the southeast.
- Its coast faces southeast.
Questions about MerrimacQuestions
What time is high tide today in Merrimac?
Today in Merrimac there are high tides at 2:24 am (7.1 ft) and 2:42 pm (8.6 ft) and low tides at 8:51 am and 9:33 pm. Tide coefficient 83.
What time is sunset today in Merrimac?
At 5:42 pm. There is light until the end of civil twilight, at 6:11 pm.
What time is sunrise tomorrow in Merrimac?
At 7:15 am. First light comes at 6:12 am.
What phase is the moon today?
Waning gibbous, 91% illuminated. New moon on Mon, Nov 9 · 2:03 am.
When are the next spring tides?
From October 26 to 28, together with the lunar perigee: they will be stronger than usual.
What are today's solunar periods?
Major 1:18–3:18 am, Minor 9:58–10:58 am, Major 1:50–3:50 pm, Minor 6:38–7:38 pm. Today's activity is high.
What's the weather like today in Merrimac?
Overcast, from 31 °F to 54 °F, with a light breeze from the south-southwest (4 mph) and a 1% chance of rain.
How is the sea today in Merrimac?
Smooth (Douglas 2): 1.0 ft waves with a period of 5.8 s from the east.
When is the best time to visit Merrimac?
The best time to visit Merrimac is from June to September: highs of 73 °F to 82 °F, about 9 rainy days a month and 7 hours of sunshine a day.
Can I use this data for navigation?
No. These are predictions for fishing and leisure; for navigation, use the official publications.
Where this data comes from
Tide: NOAA station Merrimacport (public domain), via Slackwater database. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).