Castle Beach and Pendennis Point scuba diving weather

Shore dive · Falmouth, Cornwall · Show on map

Now · 15:00Excellent

80out of 100

Excellent conditions. Steady until sunset.

Waves: 1.0 m
Wind: 11 kn from SSE; gusts 19
Water: 14 °C; same down to ~8 m
Suit: 7 mm + hood; to ~8 m

Tide High ~19:47 · Low ~02:12 · Bigger tides · approximate

Hour by hour today

Tap an hour to see it above

Score	Waves	Wind (gusts)	Current	Swell	Tide	Water	Air	Rain	Limited by
80	1.0 m	11 (19 kn) ↓	0.0 kn	0.5 m · 7 s ↓	↑ rising	14.1 °C	11 °C	–	waves
81	0.9 m	11 (18 kn) ↓	0.3 kn	0.6 m · 7 s ↓	↑ rising	14.1 °C	10 °C	–	waves
82	0.9 m	10 (18 kn) ↓	0.4 kn	0.6 m · 7 s ↓	↑ rising	14.1 °C	10 °C	–	waves
85	0.9 m	9 (15 kn) ↓	0.5 kn	0.6 m · 7 s ↓	↑ rising	14.1 °C	10 °C	–	waves
85	0.9 m	9 (16 kn) ↓	0.5 kn	0.6 m · 7 s ↓	High ~19:47	14.1 °C	10 °C	–	waves
85	0.9 m	10 (17 kn) ↓	0.4 kn	0.6 m · 6 s ↓	↓ falling	14.1 °C	9 °C	–	waves
86	0.9 m	9 (17 kn) ↓	0.2 kn	0.6 m · 7 s ↓	↓ falling	14.1 °C	9 °C	–	waves

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. Tide times come from an ocean model: usually within about half an hour, more in complex waters. Check official tide tables.

Water at depth

14 °C down to about 8 m. The model's water ends there; nothing is known below.

Suit: 7 mm with hood, or drysuit down to ~8 m.

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

Temperature profile and next days

Day	Surface	Warm to
Sat 14 Nov	13.5 °C	~8 m
Sun 15 Nov	13.4 °C	~8 m
Mon 16 Nov	13.4 °C	~8 m
Tue 17 Nov	13.5 °C	~8 m
Wed 18 Nov	13.8 °C	~8 m
Thu 19 Nov	14.0 °C	~8 m
Fri 20 Nov	13.7 °C	~8 m
Sat 21 Nov	13.5 °C	~8 m
Sun 22 Nov	13.5 °C	~8 m
Mon 23 Nov	13.4 °C	~8 m

~9 km model grid; nearest model water 4.3 km away, so channels and bays may differ. Daily averages; the thermocline can move several metres day to day.

Conditions at Castle Beach and Pendennis Point

Castle Beach and Pendennis Point is open to the sea from the ESE–S, so waves build there when the wind blows from those directions. Land shelters it from the WSW–E.

Over the next 7 days it's good or better on Sat, Sun and Mon. Thu and Fri are only a trend so far.

The water is 14 °C at the surface and stays warm past 8 m, so a 7 mm with hood, or drysuit suits most dives.

Shelter

Open to ESE–S. Waves and swell from there reach the site.

Sheltered from WSW–E: land blocks the waves.

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

Location

Open Castle Beach and Pendennis Point on the map50.1465, -5.0518

Nearby dive sites

Scores are today's best daylight hour.

About this forecast

Updated Sat 14 Nov, 15:30 · weather run 06Z 14 Nov · waves run 00Z 14 Nov

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

Tides come from a coarse ocean model. The range, and whether tides are bigger or smaller this week, are about right. Times are usually within about half an hour, but complex tides (the Solent, Portland, narrow straits) are poor. Slack water isn't in the score yet: plan with official tide tables and local advice.

Water temperature in Cornwall

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