ScubaForecast

Shark’s Mouth scuba diving weather

Boat dive · Portsmouth, Saint John Parish · Show on map

Now · 11:00Good

65out of 100

Good conditions. Best 16:00–18:00. From 15:00 it improves to excellent.

Waves
0.7 m
Wind
11 kn from ESE
gusts 29 · offshore
Water
30 °C
warm to ~50 m
Suit
Rash guard
whole dive

Hour by hour today

Tap an hour to see it above

TimeScoreWavesWind (gusts)CurrentSwellLimited by
650.7 m11 (29 kn) ↓0.4 kn0.5 m · 4 s ↓gusts
700.7 m11 (28 kn) ↓0.4 kn0.5 m · 4 s ↓gusts
740.7 m11 (27 kn) ↓0.4 kn0.5 m · 4 s ↓gusts
770.7 m10 (27 kn) ↓0.4 kn0.5 m · 4 s ↓gusts
800.7 m10 (26 kn) ↓0.3 kn0.5 m · 4 s ↓gusts
860.7 m10 (25 kn) ↓0.3 kn0.5 m · 4 s ↓gusts
920.7 m9 (23 kn) ↓0.3 kn0.5 m · 4 s ↓gusts
1000.6 m8 (19 kn) ↓0.4 kn0.5 m · 4 s ↓–
1000.6 m9 (19 kn) ↓0.4 kn0.5 m · 4 s ↓wind
960.6 m10 (21 kn) ↓0.4 kn0.5 m · 4 s ↓gusts
960.6 m10 (21 kn) ↓0.4 kn0.5 m · 4 s ↓gusts

Waves and swell are adjusted for this site's shelter from the coastline. Arrows point where the wind and swell go. Night hours are shaded.

Water at depth

30 °C at the surface, warm to about 50 m.

Suit: Rash guard or 1–2 mm for the whole dive.

Model estimate (Copernicus Marine), updated Sat 14 Nov. High confidence.

Temperature profile and next daysEstimated water temperature from the surface down to 60 metres today. Surface 29.6 °C, warm layer to about 50 metres.0 m10 m20 m30 m40 m50 m60 m28°30°0.5 m: 29.6 °C1.5 m: 29.6 °C2.6 m: 29.6 °C3.8 m: 29.6 °C5.1 m: 29.6 °C6.4 m: 29.5 °C7.9 m: 29.5 °C9.6 m: 29.5 °C11.4 m: 29.5 °C13.5 m: 29.6 °C15.8 m: 29.6 °C18.5 m: 29.6 °C21.6 m: 29.5 °C25.2 m: 29.5 °C29.4 m: 29.5 °C34.4 m: 29.4 °C40.3 m: 29.3 °C47.4 m: 29.2 °C55.8 m: 29.0 °C
DaySurfaceWarm to
Sat 14 Nov29.6 °C~50 m
Sun 15 Nov29.5 °C~50 m
Mon 16 Nov29.5 °C~50 m
Tue 17 Nov29.4 °C~48 m
Wed 18 Nov29.5 °C~46 m
Thu 19 Nov29.6 °C~44 m
Fri 20 Nov29.6 °C~44 m
Sat 21 Nov29.7 °C~40 m
Sun 22 Nov29.7 °C~42 m
Mon 23 Nov29.5 °C~53 m

~9 km model grid; nearest model water 2.7 km away. Daily averages; the thermocline can move several metres day to day.

Conditions at Shark’s Mouth

Shark’s Mouth is open to the sea from the SSW–NNW, so waves build there when the wind blows from those directions. Land shelters it from the N–SE.

Over the next 7 days it's good or better every day. Wed, Thu and Fri are only a trend so far.

The water is 30 °C at the surface and warm to about 50 m, so a rash guard or 1–2 mm suits most dives.

Shelter

Open water in each direction from the site. Longer petals mean more open sea, so more exposure to wind waves and swell from that direction.N: 0.3 km of open waterNNE: 0.2 km of open waterNE: 0.3 km of open waterENE: 1.2 km of open waterE: 1.9 km of open waterESE: 2.5 km of open waterSE: 2.9 km of open waterSSE: 3.7 km of open waterS: 4.5 km of open waterSSW: open sea (over 200 km)SW: open sea (over 200 km)WSW: open sea (over 200 km)W: open sea (over 200 km)WNW: open sea (over 200 km)NW: open sea (over 200 km)NNW: 30.1 km of open waterNESW

Open to SSW–NNW. Waves and swell from there reach the site.

Sheltered from N–SE: land blocks the waves.

Computed from the OpenStreetMap coastline. Wind itself is not reduced by shelter.

Location

Open Shark’s Mouth on the map15.5816, -61.4766

About this forecast

Updated Sat 14 Nov, 11:30 · weather run 06Z 14 Nov · waves run 00Z 14 Nov

Waves are adjusted for this site's shelter from the coastline.

Water temperature in Saint John Parish

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