New Zealand

Derry Castle

10–25 mMax Depth

boatEntry

1Species

Conditions Summary

Model forecast · local time (GMT+13)

Model conditions signal71/100

Waves

2.6 m

7.8 s

Swell

1.0 m

9.8 s

Current speed

1.5 km/h

flowing toward SE

Water temperature

8.9°C

Wind

39.3 km/h

→ W

Sea level

0.2 m

rising

WavesChallenging

SwellWatch

Current speedCalm

Forecast Overview

Sun, Oct 18Challenging

Waves2.5–3.3 mCurrent speed3.8 km/h maxWater temperature9.0°C

Mon, Oct 19Challenging

Waves2.1–3.0 mCurrent speed2.5 km/h maxWater temperature9.0°C

Tue, Oct 20Challenging

Waves2.1–3.1 mCurrent speed4.5 km/h maxWater temperature8.9°C

TodayChallenging

Waves2.8–2.9 mCurrent speed1.5 km/h maxWater temperature8.9°C

Next 72 hours

03:00

Waves: 2.5 m

Current speed: 0.6 km/h

Water temperature: 8.9°C

09:00

Waves: 2.8 m

Current speed: 2.1 km/h

Water temperature: 8.9°C

15:00

Waves: 3.2 m

Current speed: 0.5 km/h

Water temperature: 9.0°C

21:00

Waves: 3.2 m

Current speed: 2.9 km/h

Water temperature: 9.0°C

03:00

Waves: 2.8 m

Current speed: 1.2 km/h

Water temperature: 9.0°C

09:00

Waves: 2.8 m

Current speed: 2.2 km/h

Water temperature: 9.0°C

15:00

Waves: 2.6 m

Current speed: 1.6 km/h

Water temperature: 9.0°C

21:00

Waves: 2.2 m

Current speed: 2.0 km/h

Water temperature: 9.0°C

03:00

Waves: 2.1 m

Current speed: 1.7 km/h

Water temperature: 8.9°C

09:00

Waves: 2.6 m

Current speed: 4.5 km/h

Water temperature: 8.9°C

15:00

Waves: 3.0 m

Current speed: 1.0 km/h

Water temperature: 9.0°C

21:00

Waves: 3.1 m

Current speed: 3.3 km/h

Water temperature: 9.0°C

Catalog depth10–25 m

Data sources & field guideOpen-Meteo Marine + Weather APIs

Planning context, not a safety guarantee. Coastal model accuracy is limited. Confirm the actual briefing, entry, exit, and suitability with a local operator.

Open-Meteo Marine + Weather APIs →

Dive readiness

Collecting the latest marine conditions and forecast signals.

Seasons · water temperature

12-month outlook

Best window

Nov-Apr

Peak month

Feb 10.6°

Jan10.2°

Feb10.6°

Mar10.4°

Apr10.1°

May9.5°

Jun8.9°

Jul8.5°

Aug8.3°

Sep8.3°

Oct8.4°

Nov8.9°

Dec9.6°

Current: moderate

Typical visibility: 20 m

Historical planning data from the recorded site profile. Water temperature and conditions can vary by day, depth, and weather; confirm current conditions with a local operator.

Explore nearby centers on the map

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Dive Types

wrecksalt Waterintermediate Difficulty

Questions to ask a local operator

What are today's current, visibility, entry, and exit conditions?
Does the planned route stay within my certification and recent experience?
Are there local permits, conservation rules, or equipment requirements?

Common Species

12 km · nearby observations

New zealand sea lion

Phocarctos hookeri

DeepLog5

Megadyptes antipodes

Nearby OBIS observations19

Leucocarbo colensoi

Nearby OBIS observations16

Giant spider crab

Jacquinotia edwardsii

Nearby OBIS observations15

Stercorarius antarcticus

Nearby OBIS observations14

Caprellina

Nearby OBIS observations11

Diomedea epomophora

Nearby OBIS observations10

Anas aucklandica

Nearby OBIS observations8

Tawera sphaericula

Nearby OBIS observations7

Haustrum lacunosum

Nearby OBIS observations6

Macronectes halli

Nearby OBIS observations6

Nectocarcinus bennetti

Nearby OBIS observations5

These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.

DeepLog + OBIS →

Photos