Winthrop tides today
- Tide now -1.0 ft ↑ rising · high 1:49 am (9.6 ft)
- Best time tomorrow 6:50–7:50 am good day · 7/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 0.9 ft · 56 °F smooth · 6.0 s from the east-northeast
- Wind · air 6 mph · 47 °F from the SSE, gusts 10 · mainly clear
- Sun 7:12 am–5:42 pm 10 h 30 min of daylight
- Moon 91% · 7:10 pm waning gibbous · rises at 7:10 pm
- Diving tomorrow 1:30–3:00 pm great day · 10/10
Today in Winthrop there are high tides at 12:59 am (9.8 ft) and 1:09 pm (11.2 ft) and low tides at 7:00 am and 7:38 pm. Tide coefficient 85. Right now the tide is rising toward the high tide at 1:49 am. The sun rises at 7:12 am and sets at 5:42 pm: 10 h 30 min of daylight. The moon is 91% illuminated (waning gibbous) and rises at 7:10 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 0.9 ft waves. There's a light breeze from the south-southeast (6 mph). Mainly clear, 47 °F.
Fishing in Winthrop today
Best time to fish
Solunar activity today: high- Low tide at 7:38 pm
- Minor period 6:40–7:40 pm (moonrise)
- Steady pressure (30.39 inHg), light onshore wind (5 mph) and calm sea (0.9 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 85 (average tides)
Your day at a glance
The best window, 6:40 pm to 7:30 pm, combines the 7:38 pm low tide, moonrise and a light onshore breeze. Also worth a try from 6:40 am to 7:50 am, with the 7:00 am low tide and sunrise, though with rising pressure. Also good from 12:30 pm to 2:10 pm, with the 1:09 pm high tide, a major period and a light onshore breeze.
Species with the most records nearby: Atlantic cod, winter flounder, pollock 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 Winthrop
Is it a beach day?
Rip current risk today: moderate · tomorrow: low (NWS)
Dangerous rip currents are possible: swim only near a lifeguard and follow the flags. If one pulls you out, swim parallel to the shore.
- Cross-shore breeze (6 mph)
- Cloudy (76% cloud cover)
- Feels like 48 °F: chilly for the beach
- Calm for swimming: 1.2 ft waves; moderate rip current risk (NWS)
- Water at 56 °F (very cold)
- High tide at 1:09 pm
Today, hour by hour
- Swimming Calm · 1.2 ft
1.2 ft waves: calm for swimming. Always follow the lifeguard's flags.
- Water 56 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 3 · SPF 15
Max UV 3 (low): SPF 15 sunscreen.
- Wind 6 mph
Cross-shore breeze (6 mph).
- Tide & sand 7:00 am
Low tide at 7:00 am and 7:38 pm: that's when there's the most sand. High tide at 12:59 am and 1:09 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 Winthrop
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Corinha Beach 0.3 mi · S
- Pico Beach 0.4 mi · S
- Winthrop Beach 0.8 mi · E
- Showers
- Parking
- Yirrel Beach 1.0 mi · SE
- Parking
- Short Beach 1.2 mi · N
- Parking
- Point Shirley Beach 1.4 mi · SE
- Restrooms
- Parking
- Orient Heights Beach 1.5 mi · NW
- Restrooms
- Showers
- Parking
- Revere Beach 3.1 mi · N
- Restrooms
- Showers
- Parking
Water quality: check the official beach advisories for Massachusetts (Massachusetts Department of Public Health).
Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Winthrop
Webcams provided by windy.com — add a webcam
Tides in Winthrop
Today's high and low tides
- ▲ High tide 12:59 am 9.8 ft · coef. 85
- ▼ Low tide 7:00 am 0.0 ft
- ▲ High tide 1:09 pm 11.2 ft · coef. 85
- ▼ Low tide 7:38 pm -1.0 ft
↑ Rising The tide is rising. 6 h 2 min to high tide at 1:49 am.
Tide coefficient 85 for the 12:59 am high tide and 85 for the 1:09 pm high tide. Average coefficient. The water rises and falls 12.2 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 May 18 (11.6 ft) and the lowest, on December 25 (-1.6 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 came from October 26 to 29 (coefficient 85, 12.1 ft range). The smallest, from October 18 to 19 (coefficient 48, 6.2 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 | 7:12 am · 5:42 pm | High tide 12:59 am · 9.8 ft | Low tide 7:00 am · 0.0 ft | High tide 1:09 pm · 11.2 ft | Low tide 7:38 pm · -1.0 ft | Coef. 85 | 91% | Major periods 1:18 am · 1:50 pm | High |
| Thu 29 | 7:14 am · 5:41 pm | High tide 1:49 am · 9.6 ft | Low tide 7:49 am · 0.2 ft | High tide 2:00 pm · 11.1 ft | Low tide 8:29 pm · -0.8 ft | Coef. 84 | 84% | Major periods 2:22 am · 2:54 pm | Medium |
| Fri 30 | 7:15 am · 5:40 pm | High tide 2:42 am · 9.4 ft | Low tide 8:41 am · 0.5 ft | High tide 2:54 pm · 10.8 ft | Low tide 9:24 pm · -0.5 ft | Coef. 80 | 74% | Major periods 3:27 am · 3:58 pm | Medium |
| Sat 31 | 7:16 am · 5:38 pm | High tide 3:40 am · 9.1 ft | Low tide 9:38 am · 0.8 ft | High tide 3:52 pm · 10.4 ft | Low tide 10:23 pm · -0.1 ft | Coef. 75 | 63% | Major periods 4:29 am · 4:58 pm | Medium |
| Sun 1 | 6:17 am · 4:37 pm | High tide 3:42 am · 8.9 ft | Low tide 9:40 am · 1.1 ft | High tide 3:57 pm · 10.0 ft | Low tide 10:26 pm · 0.2 ft | Coef. 70 | Last quarter | Major periods 4:27 am · 4:54 pm | Medium |
| Mon 2 | 6:19 am · 4:36 pm | High tide 4:48 am · 8.9 ft | Low tide 10:47 am · 1.2 ft | High tide 5:05 pm · 9.7 ft | Low tide 11:29 pm · 0.4 ft | Coef. 67 | 41% | Major periods 5:20 am · 5:45 pm | Medium |
| Tue 3 | 6:20 am · 4:35 pm | High tide 5:54 am · 9.0 ft | Low tide 11:54 am · 1.1 ft | High tide 6:13 pm · 9.5 ft | — | Coef. 67 | 30% | Major periods 6:08 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 Deer Island station (South End, NOAA), 2.2 mi from Winthrop. Times and heights are its predictions. It is a NOAA subordinate station: its times and heights come from the Boston reference station with the official corrections.
Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)
The sea at Winthrop
Sea stateSea state: smooth
The waves you may find
- Most commonMost common0.4 ft
- Significant0.9 ft
- Highest expectedHighest1.8 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 1.8 ft. Before heading out, expect waves of up to 1.8 ft.
Wind on the coast and offshore
Cross-shore wind. The coast faces east and the wind blows along the shore: drift and current run parallel to the beach.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Friday 30: 1.3 ft with a period of 3 s, from the northwest (smooth).
Water temperature
Water temperature →Water temperature changes how fish behave: in very cold or very warm water they feed less. The water is steady these days, with no sudden changes.
Water warmer than normal for late October (+2.1 °F).
Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses
Water temperature →Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 7:47 pm (local time).
Nearest buoy
This is a real measurement of the sea, not a forecast. Data from station 44013, NOAA National Data Buoy Center (public domain).
Surf in Winthrop today
Surf today
Flat- Barely any waves (1.0 ft sets): flat
- Light onshore wind (6 mph): a bit of chop
- Falling tide (low tide at 7:38 pm)
It’s flat today: almost no waves reach this coast.
Rip current risk today: moderate · tomorrow: low (NWS)
Dangerous rip currents are possible: swim only near a lifeguard and follow the flags. If one pulls you out, swim parallel to the shore.
Surf height from the NWS, today: 2.0 ft
- Light: First light 6:43 am · sunrise 7:12 am · sunset 5:42 pm · last light 6:11 pm
- Tide: high 12:59 am (9.8 ft), low 7:00 am (0.0 ft), high 1:09 pm (11.2 ft) and low 7:38 pm (-1.0 ft). Every break has its own tide: some work at low tide and others at high tide. The tide doesn’t change the score here.
- Water at 55.8 °F: a 5/4 fullsuit with booties (and a hood if it’s windy).
- Energy: 1 kJ · Low power
Today’s surf at a glance
The best window is 2:00 pm to 6:00 pm, though with barely any waves.
An estimate for this stretch of coast, not for a specific break: every beach or reef works its own way (its tide, bottom and angle). Check it when you get there.
Diving in Winthrop today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (1:09 pm): little current from 12:40 pm to 1:30 pm
- 0.9 ft swell at 3 s from the northeast: barely any surge
- Light onshore wind (4 mph)
- 0.1 mph current toward the south, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 12:59 am (12:30–1:30 am), low tide 7:00 am (6:40–7:20 am), high tide 1:09 pm (12:40–1:30 pm) and low tide 7:38 pm (7:20–8:00 pm)
- Likely visibility: good. The sea has been calm and there's been little rain. Based on the last 24 hours of data.
- Water at 55.8 °F: a 7 mm semi-dry suit, with hood, gloves and booties.
- Snorkeling: good, calm sea and light wind.
- Night dive: dark from 6:11 pm. Waning gibbous (91%), rising at 7:10 pm: a bright night.
Your diving day at a glance
The best window, 12:10 pm to 2:10 pm, combines slack water at high tide, little swell, light wind, weak current and the sun high. Also good from 6:40 am to 8:00 am, with slack water at low tide, little swell, light wind and weak current.
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
- Wreck 0.6 mi
- Wreck 0.8 mi
- Wreck 1.2 mi
- Wreck 1.4 mi
- Wreck 1.4 mi
- Wreck 1.4 mi
- Wreck 1.5 mi
- Sculpin Ledge Channel 3.6 mi
- HubLine Boston Harbor 4.4 mi
- United Divers Inc 5.1 mi
- East Coast Divers 7.8 mi
- So. Shore Divers 9.2 mi
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
Wreck and reef positions are approximate and not for navigation; a wreck’s depth runs from the top of the hull to the seabed.
Sites: © OpenStreetMap contributors (ODbL). US wrecks: NOAA electronic navigational charts (ENC), a U.S. Government work; not for navigation. Artificial reefs: NOAA and BOEM (MarineCadastre.gov), a U.S. Government work.
Weather in Winthrop
Now in Winthrop
- Low / high
- 33 / 52 °F
- Rain
- 0.00 in · 1%
- Clouds
- 36%
- Humidity
- 81%
- Dew pointDew point
- 41 °F
- Visibility
- 11 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Good · 43
- Saharan dust
- No
Pressure and fishing
- ↗ RisingRising Anglers say fish bite less for a while
- → SteadySteady · now Anglers expect normal activity
- ↘ FallingFalling Anglers say fish feed more before the change
Steady now (−0.01 inHg in 3 hours). Over the next 48 hours: −0.28 inHg. Steady pressure: anglers expect normal activity. 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 | Mainly clear | Overcast | Overcast | Overcast | Mainly clear |
| Temperature | 37° | 34° | 34° | 39° | 51° | 52° | 48° | 46° |
| Wind (mph) | 4 NNW | 5 NW | 5 N | 5 N | 4 ENE | 6 ESE | 5 SSE | 6 SSW |
| Gusts | 11 | 13 | 11 | 10 | 5 | 9 | 6 | 14 |
| Waves | 1.1 ft | 1.1 ft | 1.2 ft | 1.2 ft | 1.2 ft | 1.0 ft | 0.9 ft | 0.9 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 46° 6 SSW 0.9 ft
- 12:00 am 42° 6 SW 0.8 ft
- 3:00 am 42° 6 WSW 0.7 ft
- 6:00 am 43° 7 SW 0.7 ft
- 9:00 am 50° 8 SW 0.7 ft
- 12:00 pm 62° 12 SW 0.9 ft
- 3:00 pm 68° 12 SW 1.1 ft
- 6:00 pm 64° 11 SW 1.1 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 33 / 52 °F | 6 mph N | 1.2 ft | 12:59 am · 1:09 pm | |
| Thu 29 | 42 / 68 °F | 13 mph SW | 1.2 ft | 1:49 am · 2:00 pm | |
| Fri 30 | 51 / 68 °F | 13 mph W | 1.3 ft | 2:42 am · 2:54 pm | |
| Sat 31 | 43 / 54 °F | 11 mph NW | 1.2 ft | 3:40 am · 3:52 pm | |
| Sun 1 | 38 / 59 °F | 6 mph WSW | 0.7 ft | 3:42 am · 3:57 pm | |
| Mon 2 | 45 / 65 °F | 6 mph WSW | 0.6 ft | 4:48 am · 5:05 pm | |
| Tue 3 | 49 / 60 °F | 9 mph ENE | 0.7 ft | 5:54 am · 6:13 pm | |
| Wed 4 | 48 / 61 °F | 9 mph SSW | 1.6 ft | 6:56 am · 7:19 pm | |
| Thu 5 | 49 / 62 °F | 11 mph ESE | 1.1 ft | 7:54 am · 8:20 pm | |
| Fri 6 | 52 / 61 °F | 13 mph SSW | 3.1 ft | 8:45 am · 9:13 pm | |
| Sat 7 | 48 / 57 °F | 10 mph WNW | 5.4 ft | 9:30 am · 10:01 pm | |
| Sun 8 | 39 / 55 °F | 10 mph WNW | 5.1 ft | 10:11 am · 10:45 pm | |
| Mon 9 | 36 / 54 °F | 7 mph NW | 2.2 ft | 10:50 am · 11:26 pm | |
| Tue 10 | 38 / 52 °F | 7 mph NE | 2.3 ft | 11:28 am |
- Thu 29 Clear sky 42° / 68° 1.2 ft
- Fri 30 Overcast 51° / 68° 1.3 ft
- Sat 31 Mainly clear 43° / 54° 1.2 ft
- Sun 1 Clear sky 38° / 59° 0.7 ft
- Mon 2 Partly cloudy 45° / 65° 0.6 ft
- Tue 3 Overcast 49° / 60° 0.7 ft
- Wed 4 Overcast 48° / 61° 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: a bit warmer, normal rain and a slightly warmer sea. See the outlook →
- Normal Today, cooler than normal for late October (−7.0 °F; normal high: 59 °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 7:47 pm (local time).
The sun in Winthrop
Sunrise and sunset
- First light 6:10 am
- Full dark 6:44 pm
- Civil dawn 6:43 am
- Civil dusk 6:11 pm
- Solar noon 12:28 pm (34° high)
- Daylight 10 h 30 min (−3 min)
- Evening golden hour 5:03 pm
- Full dark 6:44 pm
Golden hour and the day-night map
Today the sun is 92,355,045 mi away and looks 32′ 11″ across.
The moon in Winthrop
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
- 9:56–10:56 am Minor · moonset · medium activity
- 6:40–7:40 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 Winthrop
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Fishing pier 3.8 mi
- Fishing pier 3.9 mi
- Fishing pier 4.8 mi
- Jetty 0.6 mi
- Boat ramp 0.6 mi
- Boat ramp 0.7 mi
- Winthrop Boat Ramp 0.8 mi
- Cottage Park Yacht Club 0.5 mi
- Marina 0.7 mi
- Bob's Bait Shack 0.5 mi
- Fishing Finatics 4.5 mi
- Harbor Fuels 2.7 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
Gentle slopeThe bottom slopes gently: 16 ft deep 0.55 mi from shore and 33 ft at 0.9 mi.
From the shoreline (0.7 mi from Winthrop) out to sea, heading east.
How far from shore
- 16 ft deep0.55 mi
- 33 ft deep0.9 mi
- 66 ft deepnot within 3.1 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. Shallow, gradual bottom (16 ft at 0.55 mi): cast far from the beach and fish the high tide, when there is more water close in.
- Swimming. The water gets deeper little by little, but a few dozen yards out you can no longer stand.
- Diving. Shallow near shore: you only reach 33 ft at 0.9 mi. For dives deeper than 33 ft, go by boat.
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.
Nearest lighthouse
Deer Island Light 2.8 mi southeast
- Light
- Light alternating white and red every 10 s · Al WR 10s
- Range
- 9 nautical miles (10 mi)
- Light height
- 52 ft above sea level
- Tower height
- 33 ft
- Built
- 1890
Other lighthouses nearby: Spectacle Island Range Lights (3.3 mi south), Broad Sound Channel Inner Range Lights (3.3 mi south).
Data from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses
Tides near WinthropTides nearby
- Suffolk Downs Station1.3 mi
- Orient Heights1.4 mi
- Jeffries Point2.6 mi
- Revere2.7 mi
- Chelsea2.8 mi
- East Boston2.9 mi
- Boston Fish Pier3.3 mi
- VA Boston Healthcare System, Brockton Campus3.9 mi
- Charlestown4.0 mi
- Boston4.1 mi
Winthrop at a glance
- Town or city of about 17,618 people. Coordinates: 42.375° N, 70.983° W.
- It is 4.1 mi east of Boston, the main place in Massachusetts. The sun rises at the same time and sets at the same time than in Boston.
- The nearest tide station, Deer Island, is 2.2 mi to the southeast.
- Its coast faces east.
- Beaches and harbors nearby: Winthrop Beach (0.8 mi), Yirrell Beach (1.1 mi), Short Beach (1.2 mi), Revere Beach (3.1 mi).
Questions about WinthropQuestions
What time is high tide today in Winthrop?
Today in Winthrop there are high tides at 12:59 am (9.8 ft) and 1:09 pm (11.2 ft) and low tides at 7:00 am and 7:38 pm. Tide coefficient 85.
What time is sunset today in Winthrop?
At 5:42 pm. There is light until the end of civil twilight, at 6:11 pm.
What time is sunrise tomorrow in Winthrop?
At 7:14 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 9:56–10:56 am, Major 1:50–3:50 pm, Minor 6:40–7:40 pm. Today's activity is high.
What's the weather like today in Winthrop?
Overcast, from 33 °F to 52 °F, with a light breeze from the south-southeast (6 mph) and a 1% chance of rain.
How is the sea today in Winthrop?
Smooth (Douglas 2): 0.9 ft waves with a period of 6.0 s from the east-northeast. The water is 55.9 °F.
When is the best time to visit Winthrop?
The best time to visit Winthrop is from June to September: highs of 75 °F to 84 °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 Deer Island (South End) (public domain), via Slackwater database. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).