Portugal

Sesimbra

10–30 mMax Depth

boatEntry

2Species

Conditions Summary

Model forecast · local time (GMT+1)

Model conditions signal71/100

Waves

1.5 m

11.8 s

Swell

1.3 m

11.7 s

Current speed

0.4 km/h

flowing toward SE

Water temperature

17.7°C

Wind

15.1 km/h

→ NW

Sea level

0.1 m

falling

WavesChallenging

SwellWatch

Current speedCalm

Forecast Overview

Tue, Oct 20Challenging

Waves1.4–1.6 mCurrent speed0.6 km/h maxWater temperature17.6°C

TodayChallenging

Waves1.2–1.8 mCurrent speed0.4 km/h maxWater temperature17.5°C

TomorrowChallenging

Waves1.5–1.9 mCurrent speed0.4 km/h maxWater temperature17.3°C

Fri, Oct 23Challenging

Waves1.5–1.6 mCurrent speed0.4 km/h maxWater temperature17.2°C

Next 72 hours

11:00

Waves: 1.5 m

Current speed: 0.4 km/h

Water temperature: 17.7°C

17:00

Waves: 1.6 m

Current speed: 0.5 km/h

Water temperature: 17.6°C

23:00

Waves: 1.4 m

Current speed: 0.4 km/h

Water temperature: 17.5°C

05:00

Waves: 1.3 m

Current speed: 0.2 km/h

Water temperature: 17.4°C

11:00

Waves: 1.2 m

Current speed: 0.2 km/h

Water temperature: 17.6°C

17:00

Waves: 1.5 m

Current speed: 0.4 km/h

Water temperature: 17.6°C

23:00

Waves: 1.8 m

Current speed: 0.2 km/h

Water temperature: 17.4°C

05:00

Waves: 1.8 m

Current speed: 0.0 km/h

Water temperature: 17.3°C

11:00

Waves: 1.7 m

Current speed: 0.2 km/h

Water temperature: 17.3°C

17:00

Waves: 1.6 m

Current speed: 0.4 km/h

Water temperature: 17.4°C

23:00

Waves: 1.5 m

Current speed: 0.0 km/h

Water temperature: 17.3°C

05:00

Waves: 1.5 m

Current speed: 0.2 km/h

Water temperature: 17.2°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-Oct

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: 8 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

reefshoresalt 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

DeepLog2

European conger

Conger conger

DeepLog1

Larus fuscus

Nearby OBIS observations77

Morus bassanus

Nearby OBIS observations22

Felimare villafranca

Nearby OBIS observations6

Luisella babai

Nearby OBIS observations6

Larus michahellis

Nearby OBIS observations5

Diaphorodoris alba

Nearby OBIS observations4

Diplodus cervinus

Nearby OBIS observations4

Felimare tricolor

Nearby OBIS observations4

Serranus cabrilla

Nearby OBIS observations4

Sterna sandvicensis

Nearby OBIS observations4

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

DeepLog + OBIS →

Photos