TidePlanet

Today in Southern Harbour there are high tides at 10:26 am (7.8 ft) and 10:40 pm (6.5 ft) and low tides at 3:39 am and 4:20 pm. Tide coefficient 95. Right now the tide is rising toward the high tide at 10:40 pm. The sun rises at 7:44 am and sets at 5:54 pm: 10 h 10 min of daylight. The moon is 92% illuminated (waning gibbous) and rises at 7:03 pm. Major solunar periods run from 1:37 am to 3:37 am and from 2:09 pm to 4:09 pm. The next spring tides arrive from October 26 to 28. The sea is smooth, with 1.6 ft waves. There's a gentle breeze from the west (12 mph). Clear, 40 °F.

Fishing

Fishing in Southern Harbour today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: high
6
Average day · 6 out of 10 2:40–3:40 am Also 3:20–4:10 pm
  • Low tide at 3:39 am
  • Major period 1:37–3:37 am
  • Rising pressure (+0.23 inHg in 24 h), light cross-shore wind (12 mph) and calm sea (1.4 ft waves)
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 95 (spring tides)

Your day at a glance

The best window, 2:40 am to 3:40 am, combines the 3:39 am low tide and a major period, though with rising pressure. Also worth a try from 3:20 pm to 4:10 pm, with the 4:20 pm low tide, a major period and some swell, though with rising pressure and fresh wind.

How it works · Next 7 days · Fishing rules

Beach

Beach day in Southern Harbour

Beach forecast, 7 days →

Is it a beach day?

0
Not a beach day · 0 out of 10 No good beach time today.
  • Sun and clouds
  • Calm for swimming: 2.1 ft waves
  • Low tide at 4:20 pm: more sand
  • Feels like 28 °F: chilly for the beach
  • Fresh cross-shore wind (19 mph): blowing sand
  • Water at 46 °F (very cold)

Today, hour by hour

  • Swimming Calm · 2.1 ft

    2.1 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.

  • Water 46 °F

    Very cold: ease in and keep swims short.

  • Sun & sunscreen UV 1 · SPF 15

    Max UV 1 (low): SPF 15 sunscreen.

  • Wind 19 mph

    Fresh cross-shore wind (19 mph): blowing sand.

  • Tide & sand 3:39 am

    Low tide at 3:39 am and 4:20 pm: that's when there's the most sand. High tide at 10:26 am and 10:40 pm. Coefficient 95 (spring tides): little sand left at high tide.

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 Southern Harbour

We don't know of any named beaches within 6.2 mi of Southern Harbour.

Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap

Beaches and amenities: © OpenStreetMap contributors (ODbL).

Tides

Tides in Southern Harbour

Tides for 7 days →

Today's high and low tides

  • ▼ Low tide 3:39 am 0.8 ft
  • ▲ High tide 10:26 am 7.8 ft · coef. 95
  • ▼ Low tide 4:20 pm 0.7 ft

↑ Rising The tide is rising. 3 h 13 min to high tide at 10:40 pm.

Tide coefficient 95 for the 10:26 am high tide and 92 for the 10:40 pm high tide. Spring tides. The water rises and falls 7.1 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 December 25 (8.2 ft) and the lowest, on April 18 (0.1 ft).

Semidiurnal: two high and two low tides a day, of similar height.

Heights above lower low water, large tide (LLWLT), the zero of Canadian 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. LLWLT

Tide coefficient and range in October

The biggest tides of the month came from October 26 to 28 (coefficient 97, 7.2 ft range). The smallest, on October 19 (coefficient 34, 2.8 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Wed 28 7:44 am · 5:54 pm Low tide 3:39 am · 0.8 ft High tide 10:26 am · 7.8 ft Low tide 4:20 pm · 0.7 ft High tide 10:40 pm · 6.5 ft Coef. 95 92% Major periods 1:37 am · 2:09 pm High
Thu 29 7:46 am · 5:53 pm Low tide 4:21 am · 0.9 ft High tide 11:15 am · 7.7 ft Low tide 5:00 pm · 1.0 ft High tide 11:33 pm · 6.2 ft Coef. 88 84% Major periods 2:41 am · 3:13 pm Medium
Fri 30 7:47 am · 5:51 pm Low tide 5:04 am · 1.2 ft High tide 12:08 pm · 7.4 ft Low tide 5:43 pm · 1.5 ft — Coef. 79 75% Major periods 3:45 am · 4:17 pm Medium
Sat 31 7:49 am · 5:50 pm High tide 12:35 am · 5.9 ft Low tide 5:49 am · 1.5 ft High tide 1:06 pm · 7.1 ft Low tide 6:31 pm · 2.1 ft Coef. 73 64% Major periods 4:48 am · 5:18 pm Medium
Sun 1 6:50 am · 4:48 pm High tide 1:47 am · 5.7 ft Low tide 5:39 am · 1.9 ft High tide 1:14 pm · 6.7 ft Low tide 6:36 pm · 2.5 ft Coef. 62 Last quarter Major periods 4:46 am · 5:13 pm Medium
Mon 2 6:52 am · 4:46 pm High tide 2:01 am · 5.7 ft Low tide 6:39 am · 2.3 ft High tide 2:33 pm · 6.4 ft Low tide 9:43 pm · 2.5 ft Coef. 55 41% Major periods 5:39 am · 6:04 pm Medium
Tue 3 6:53 am · 4:45 pm High tide 3:08 am · 5.8 ft Low tide 8:59 am · 2.6 ft High tide 3:49 pm · 6.3 ft Low tide 10:29 pm · 2.2 ft Coef. 56 31% Major periods 6:28 am · 6:51 pm Medium

▲ high tide · ▼ low tide · heights above LLWLT. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.

Where this tide comes from

B · Nearby station

Southern Harbour has no station of its own, so we use the tide at Argentia (TICON-4), 29 mi away. On the open coast the difference is usually a few minutes and inches; inside estuaries, rivers and enclosed bays it can be much larger.

Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data

How we calculate the tide

Sea and waves

The sea at Southern Harbour

7-day waves

Sea stateSea state: smooth

Smooth Douglas 2 · gentle breeze, Beaufort 3
Waves 1.6 ft · 3.1 s from the west-northwest (283°)
Swell 0.3 ft · 3.9 s from the west-southwest
Current 0.2 mph toward the ENE

The waves you may find

  • Most commonMost common0.8 ft
  • Significant1.6 ft
  • Highest expectedHighest3.4 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 3.4 ft. Before heading out, expect waves of up to 3.4 ft.

Wind on the coast and offshore

On the coast 12 mph W · gusts 20

The model doesn't separate offshore wind here: it's the same as on the coast.

Cross-shore wind. The coast faces south and the wind blows along the shore: drift and current run parallel to the beach.

Cross-shore Hourly wind →

Wave height, next 7 daysWaves, next 7 days

Waves build over the next few days. The biggest waves arrive on Monday 2: 3.6 ft with a period of 4 s, from the southwest (slight).

Water temperature

Water temperature →
Water now46.0 °F
Today 45.9–46.0 °F air: 35 / 40 °F
Satellite (yesterday) 47.8 °F measured 0.5 mi away

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 colder than normal for late October (−2.2 °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 7:27 pm (local time).

Diving

Diving in Southern Harbour today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: good
8
Good day · 8 out of 10 4:30–5:10 pm Also 9:50–11:00 am
  • Slack water around low tide (4:20 pm): little current from 4:05 pm to 4:40 pm
  • 0.3 ft swell at 4 s from the west-southwest: barely any surge
  • Moderate cross-shore wind (16 mph)
  • 0.2 mph current toward the east, weak (model)
  • Daylight
Swell 0.3 ft 4 s · from the WSW
Likely visibility Good Snorkeling: fair
Water and suit 45.9 °F Drysuit
Current 0.2 mph toward the E
  • Slack water today: low tide 3:39 am (3:20–4:00 am), high tide 10:26 am (10:10–10:41 am), low tide 4:20 pm (4:05–4:40 pm) and high tide 10:40 pm (10:20–11:00 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 45.9 °F: a drysuit, with hood, gloves and booties.
  • Snorkeling: doable, with some waves or wind.
  • Night dive: dark from 6:26 pm. Waning gibbous (92%), rising at 7:03 pm: a bright night.

Your diving day at a glance

The best window, 4:30 pm to 5:10 pm, combines slack water at low tide, little swell and weak current, though with moderate wind. Also worth a look from 9:50 am to 11:00 am, with slack water at high tide, little swell, weak current and the sun high, though with fresh 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.

How it works · Next 7 days

Dive sites, wrecks and dive shops nearby

We have no dive sites, dive shops or wrecks on record within 12 mi of Southern Harbour.

If you know one, you can add it to OpenStreetMap and it will show up here after the next update. Missing one? Add it to OpenStreetMap

Sites: © OpenStreetMap contributors (ODbL).

Weather

Weather in Southern Harbour

14-day weather

Now in Southern Harbour

Now 40 °F Clear · feels like 30 °F · 35 / 40 °F
Low / high
35 / 40 °F
Rain
0.00 in · 0%
Clouds
0%
Humidity
63%
Dew pointDew point
28 °F
Visibility
15 mi
UV indexUV
0 · low
Air qualityAir
Fair · 29
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 (+0.02 inHg in 3 hours). Over the next 48 hours: −0.29 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 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky ClearClearClearClear skyPartly cloudyOvercastMainly clearClear
Temperature 36°35°35°35°37°40°40°38°
Wind (mph) 11 WNW12 WNW13 WNW17 WNW18 NW19 WNW14 WNW11 W
Gusts 1918192427272317
Waves 1.5 ft1.4 ft1.5 ft1.8 ft2.0 ft2.1 ft1.8 ft1.4 ft
Rain 0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
  • 9:00 pm 38° 11 W 1.4 ft
  • 12:00 am 38° 12 WSW 1.4 ft
  • 3:00 am 39° 15 WSW 1.6 ft
  • 6:00 am 39° 14 WSW 1.7 ft
  • 9:00 am 40° 12 WSW 1.6 ft
  • 12:00 pm 43° 14 WSW 1.6 ft
  • 3:00 pm 47° 15 WSW 1.8 ft
  • 6:00 pm 46° 16 WSW 2.0 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 28 Overcast 35 / 40 °F 19 mph WNW 2.1 ft 10:26 am · 10:40 pm
Thu 29 Overcast 38 / 47 °F 16 mph WSW 2.1 ft 11:15 am · 11:33 pm
Fri 30 Overcast 45 / 49 °F 22 mph SW 3.2 ft 12:08 pm
Sat 31 Light drizzle 37 / 47 °F 16 mph N 2.2 ft 12:35 am · 1:06 pm
Sun 1 Overcast 35 / 41 °F 19 mph NW 2.2 ft 1:47 am · 1:14 pm
Mon 2 Light drizzle 38 / 46 °F 23 mph WSW 3.6 ft 2:01 am · 2:33 pm
Tue 3 Partly cloudy 32 / 43 °F 15 mph WNW 2.1 ft 3:08 am · 3:49 pm
Wed 4 Light drizzle 32 / 42 °F 18 mph S 3.0 ft 4:09 am · 4:54 pm
Thu 5 Heavy drizzle 42 / 49 °F 23 mph SW 3.7 ft 5:06 am · 5:48 pm
Fri 6 Overcast 38 / 43 °F 7 mph S 0.9 ft 5:58 am · 6:35 pm
Sat 7 Drizzle 42 / 48 °F 7 mph ESE — 6:45 am · 7:17 pm
Sun 8 Drizzle 46 / 48 °F 14 mph SSE — 7:28 am · 7:53 pm
Mon 9 Light drizzle 39 / 47 °F 19 mph WNW — 8:07 am · 8:26 pm
Tue 10 Overcast 35 / 38 °F 14 mph NW — 8:43 am · 8:55 pm
  • Thu 29 Overcast 38° / 47° 2.1 ft
  • Fri 30 Overcast 45° / 49° 3.2 ft
  • Sat 31 Light drizzle 37° / 47° 2.2 ft
  • Sun 1 Overcast 35° / 41° 2.2 ft
  • Mon 2 Light drizzle 38° / 46° 3.6 ft
  • Tue 3 Partly cloudy 32° / 43° 2.1 ft
  • Wed 4 Light drizzle 32° / 42° 3.0 ft
See all 14 days →

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 Partly agree · medium confidence: unsure about rain on Friday 30. See the models →
  • Outlook Next few weeks, compared with normal: normal temperatures, normal rain and a cooler sea. See the outlook →
  • Normal Today, cooler than normal for late October (−9.4 °F; normal high: 50 °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 7:27 pm (local time).

Sun

The sun in Southern Harbour

Sunrise and sunset →

Sunrise and sunset

Rises 7:44 am in the ESE (109°)ESE
Sets 5:54 pm in the WSW (251°)WSW
  • First light 6:36 am
  • Full dark 7:03 pm
  • Civil dawn 7:12 am
  • Civil dusk 6:26 pm
  • Solar noon 12:50 pm (29° high)
  • Daylight 10 h 10 min (−3 min)
  • Evening golden hour 5:10 pm
  • Full dark 7:03 pm

Golden hour and the day-night map

Morning golden hour7:44–8:28 am
Evening golden hour5:10–5:54 pm
Southern Harbour

Today the sun is 92,356,198 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in Southern Harbour

The moon for 7 days →

Moon phase and position

Waning gibbous · 92% 92% illuminated · 17.9 days old New moon on Mon, Nov 9 · 3:33 am
Rises 7:03 pm in the NE (48°)NE
Sets 12:24 pm tomorrow · in the NW (314°) · set at 11:10 am
Transit 2:37 am overhead
Visible 17 h 21 min from 7:03 pm to 12:24 pm

Today the moon is 226,434 mi away and looks 32′ 47″ across.

Solunar periods

Today's activity: high
  • 1:37–3:37 am Major · the moon passes overhead · high activity
  • 2:09–4:09 pm Major · the moon passes underfoot · high activity
  • 10:40–11:40 am Minor · moonset · medium activity
  • 6:33–7:33 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 · 4:59 pmNov 1 in 4 days
  • New moon Mon, Nov 9 · 3:33 amNov 9 in 12 days
  • First quarter Tue, Nov 17 · 8:18 amNov 17 in 20 days
  • Full moon Tue, Nov 24 · 11:24 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.

Place

Where to fish in Southern Harbour

All places in Newfoundland and Labrador →

Piers, ramps and tackle shops nearby

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

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

Very shallow

Very shallow and flat: even 1.6 mi from shore the water is less than 16 ft deep.

From the shoreline out to sea, heading south.

How far from shore

  • 16 ft deepnot within 1.6 mi
  • 33 ft deepnot within 1.6 mi
  • 66 ft deepnot within 1.6 mi
  • 164 ft deepnot within 1.6 mi

For fishing, swimming and diving

  • Shore fishing. Very shallow: the water doesn't reach 16 ft within 1.6 mi. 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 1.6 mi. 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) 1.6 mi out.

Source: EMODnet Bathymetry DTM 2024 (CC BY 4.0), cells of about 380 ft; depth at the lowest astronomical tide. For reference only: not for navigation or anchoring.

Tides near Southern HarbourTides nearby

All places in Newfoundland and Labrador, A to Z (643) → Newfoundland tides →

Southern Harbour at a glance

  • Town or city of about 313 people. Coordinates: 47.717° N, 53.965° W.
  • It is 59 mi west of St. John's, the main place in Newfoundland and Labrador. The sun rises 5 min later and sets 5 min later than in St. John's.
  • The nearest tide station, Argentia, is 29 mi to the south.
  • Its coast faces south.
  • Beaches and harbors nearby: Little Southern Harbour (0.0 mi), Long Beds Beach (0.5 mi), The Neck (0.7 mi), Point of the Harbour Beach (0.9 mi).

Questions about Southern HarbourQuestions

What time is high tide today in Southern Harbour?

Today in Southern Harbour there are high tides at 10:26 am (7.8 ft) and 10:40 pm (6.5 ft) and low tides at 3:39 am and 4:20 pm. Tide coefficient 95.

What time is sunset today in Southern Harbour?

At 5:54 pm. There is light until the end of civil twilight, at 6:26 pm.

What time is sunrise tomorrow in Southern Harbour?

At 7:46 am. First light comes at 6:37 am.

What phase is the moon today?

Waning gibbous, 92% illuminated. New moon on Mon, Nov 9 · 3:33 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 1:37–3:37 am, Minor 10:40–11:40 am, Major 2:09–4:09 pm, Minor 6:33–7:33 pm. Today's activity is high.

What's the weather like today in Southern Harbour?

Overcast, from 35 °F to 40 °F, with a gentle breeze from the west (12 mph) and a 0% chance of rain.

How is the sea today in Southern Harbour?

Smooth (Douglas 2): 1.6 ft waves with a period of 3.1 s from the west-northwest. The water is 46.0 °F.

When is the best time to visit Southern Harbour?

The best time to visit Southern Harbour is in August: highs of 69 °F, about 12 rainy days a month and 6 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: Argentia station, with constants from TICON-4 (Hart-Davis, Dettmering and Seitz, 2025, SEANOE), licensed CC BY 4.0, via Slackwater database (changes). Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).

Spotted a mistake? Tell us · How we calculate the tide

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