HMNZS Canterbury scuba diving weather

Boat dive · Bay of Islands, Northland · Show on map

Now · 04:00Excellent

100out of 100

Excellent conditions. Steady until sunset.

Waves: 0.4 m
Wind: 6 kn from S; gusts 12 · offshore
Water: 18 °C; warm to ~6 m
Suit: 7 mm; to ~20 m

Tide Low ~06:00 · High ~12:23 · approximate

Hour by hour today

Tap an hour to see it above

Score	Waves	Wind (gusts)	Current	Swell	Tide	Water	Air	Rain	Limited by
100	0.4 m	6 (12 kn) ↓	0.0 kn	0.3 m · 7 s ↓	–	17.7 °C	17 °C	–	–
100	0.4 m	7 (12 kn) ↓	0.0 kn	0.3 m · 7 s ↓	–	17.6 °C	16 °C	–	–
100	0.4 m	8 (14 kn) ↓	0.1 kn	0.3 m · 7 s ↓	Low ~06:00	17.6 °C	17 °C	–	–
100	0.4 m	7 (15 kn) ↓	0.1 kn	0.3 m · 7 s ↓	↑ rising	17.7 °C	17 °C	–	–
100	0.5 m	6 (15 kn) ↓	0.2 kn	0.3 m · 7 s ↓	↑ rising	17.7 °C	18 °C	–	–
100	0.5 m	6 (14 kn) ↓	0.3 kn	0.3 m · 7 s ↓	↑ rising	17.9 °C	20 °C	–	–
100	0.5 m	5 (14 kn) ↓	0.4 kn	0.3 m · 7 s ↓	↑ rising	18.0 °C	20 °C	0.1 mm	–
100	0.5 m	6 (15 kn) ↓	0.5 kn	0.3 m · 7 s ↓	↑ rising	18.1 °C	21 °C	0.1 mm	–
100	0.4 m	6 (15 kn) ↓	0.5 kn	0.3 m · 7 s ↓	High ~12:23	18.2 °C	21 °C	0.1 mm	–
100	0.4 m	6 (16 kn) ↓	0.5 kn	0.3 m · 7 s ↓	↓ falling	18.3 °C	21 °C	0.1 mm	–
100	0.3 m	7 (17 kn) ↓	0.5 kn	0.3 m · 7 s ↓	↓ falling	18.4 °C	21 °C	–	–
100	0.4 m	7 (18 kn) ↓	0.4 kn	0.3 m · 7 s ↓	↓ falling	18.4 °C	21 °C	–	–
100	0.3 m	6 (17 kn) ↓	0.4 kn	0.3 m · 7 s ↓	↓ falling	18.5 °C	21 °C	–	–
100	0.3 m	5 (15 kn) ↓	0.4 kn	0.3 m · 7 s ↓	↓ falling	18.5 °C	21 °C	–	–
100	0.4 m	3 (13 kn) ↓	0.3 kn	0.3 m · 7 s ↓	Low ~18:33	18.5 °C	20 °C	–	–
100	0.4 m	3 (8 kn) ↓	0.3 kn	0.3 m · 7 s ↓	↑ rising	18.5 °C	20 °C	–	–
100	0.3 m	1 (7 kn) ↓	0.3 kn	0.3 m · 7 s ↓	↑ rising	18.5 °C	19 °C	–	–
100	0.4 m	1 (3 kn) ↓	0.3 kn	0.3 m · 7 s ↓	↑ rising	18.5 °C	18 °C	–	–

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

18 °C at the surface, warm to about 6 m. About 16 °C at typical dive depth.

0–20 m 7 mm or semi-dry (down to 16.4 °C)
20–40 m 7 mm with hood, or drysuit (down to 15.4 °C)

Model estimate (Copernicus Marine), updated Sun 15 Nov. High confidence.

Temperature profile and next days

Day	Surface	Warm to	Dive depth
Sun 15 Nov	18.4 °C	~6 m	15.5 °C
Mon 16 Nov	18.3 °C	~9 m	15.5 °C
Tue 17 Nov	18.1 °C	~11 m	15.5 °C
Wed 18 Nov	17.7 °C	~14 m	15.4 °C
Thu 19 Nov	17.5 °C	~17 m	15.6 °C
Fri 20 Nov	17.8 °C	~16 m	15.7 °C
Sat 21 Nov	18.0 °C	~18 m	16.0 °C
Sun 22 Nov	18.1 °C	~24 m	16.6 °C
Mon 23 Nov	18.3 °C	~24 m	17.0 °C

~9 km model grid; nearest model water 3.1 km away, so channels and bays may differ. Daily averages; the thermocline can move several metres day to day.

Conditions at HMNZS Canterbury

HMNZS Canterbury is open to the sea from the W–NNW, so waves build there when the wind blows from those directions. Land shelters it from the N–S.

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

The water is 18 °C at the surface and warm to about 6 m, so a 7 mm or semi-dry suits most dives.

Shelter

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

Sheltered from N–S: land blocks the waves.

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

Location

Open HMNZS Canterbury on the map-35.1936, 174.2948

About this forecast

Updated Sun 15 Nov, 04:30 · 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 Northland

Site details are auto-generated; help us improve them.

Report a problem or suggest an edit