Portugal

Três Irmãs

10–30 mMax Depth

boatEntry

4Species

Conditions Summary

Model forecast · local time (GMT+1)

Model conditions signal71/100

Waves

1.2 m

8.9 s

Swell

1.1 m

8.1 s

Current speed

0.3 km/h

flowing toward NW

Water temperature

18.0°C

Wind

7.6 km/h

→ N

Sea level

-0.5 m

rising

WavesChallenging

SwellWatch

Current speedCalm

Planning window

02:00–03:00

Calmest model window

Forecast Overview

Sun, Oct 18Challenging

Waves0.9–1.2 mCurrent speed0.4 km/h maxWater temperature18.1°C

Mon, Oct 19Watch

Waves0.7–0.9 mCurrent speed0.7 km/h maxWater temperature18.0°C

Tue, Oct 20Challenging

Waves0.9–1.2 mCurrent speed0.6 km/h maxWater temperature17.8°C

TodayWatch

Waves0.9–1.0 mCurrent speed0.4 km/h maxWater temperature17.7°C

Next 72 hours

03:00

Waves: 1.2 m

Current speed: 0.2 km/h

Water temperature: 18.1°C

09:00

Waves: 1.1 m

Current speed: 0.2 km/h

Water temperature: 18.0°C

15:00

Waves: 1.0 m

Current speed: 0.4 km/h

Water temperature: 18.1°C

21:00

Waves: 0.9 m

Current speed: 0.2 km/h

Water temperature: 18.2°C

03:00

Waves: 0.8 m

Current speed: 0.0 km/h

Water temperature: 18.0°C

09:00

Waves: 0.7 m

Current speed: 0.2 km/h

Water temperature: 17.9°C

15:00

Waves: 0.7 m

Current speed: 0.2 km/h

Water temperature: 18.0°C

21:00

Waves: 0.9 m

Current speed: 0.6 km/h

Water temperature: 18.0°C

03:00

Waves: 0.9 m

Current speed: 0.2 km/h

Water temperature: 17.8°C

09:00

Waves: 1.0 m

Current speed: 0.3 km/h

Water temperature: 17.8°C

15:00

Waves: 1.2 m

Current speed: 0.5 km/h

Water temperature: 17.9°C

21:00

Waves: 1.1 m

Current speed: 0.4 km/h

Water temperature: 17.8°C

Catalog depth10–30 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

May-Sep

Peak month

Sep 19.0°

Jan15.4°

Feb14.8°

Mar14.9°

Apr15.6°

May16.6°

Jun18.0°

Jul18.5°

Aug18.9°

Sep19.0°

Oct18.4°

Nov17.3°

Dec16.2°

Current: moderate

Typical visibility: 12 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

reefsalt 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

Catostylus tagi

DeepLog1

Sea star

Asterina gibbosa

DeepLog1

Spiny starfish

Marthasterias glacialis

DeepLog1

Undulate ray

Raja undulata

DeepLog1

Larus fuscus

Nearby OBIS observations99

Morus bassanus

Nearby OBIS observations14

Luisella babai

Nearby OBIS observations5

Dosinia exoleta

Nearby OBIS observations4

Felimare tricolor

Nearby OBIS observations4

Larus michahellis

Nearby OBIS observations4

Anemonia viridis

Nearby OBIS observations3

Diaphorodoris alba

Nearby OBIS observations3

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

DeepLog + OBIS →

Photos