Finland

Gerda

15–25 mMax Depth

boatEntry

1Species

Conditions Summary

Model forecast · local time (GMT+3)

Model conditions signal100/100

Waves

0.4 m

2.8 s

Swell

0.1 m

3.0 s

Current speed

0.7 km/h

flowing toward W

Water temperature

10.6°C

Wind

17.6 km/h

→ SE

Sea level

-0.2 m

WavesCalm

SwellCalm

Current speedCalm

Planning window

19:15–19:00

Calmest model window

Forecast Overview

Tue, Oct 20Calm

Waves0.4–0.5 mCurrent speed0.7 km/h maxWater temperature10.6°C

TodayCalm

Waves0.4–0.5 mCurrent speed0.9 km/h maxWater temperature10.6°C

TomorrowCalm

Waves0.4–0.6 mCurrent speed0.5 km/h maxWater temperature10.7°C

Fri, Oct 23Watch

Waves0.5–0.6 mCurrent speed0.6 km/h maxWater temperature10.8°C

Next 72 hours

19:00

Waves: 0.4 m

Current speed: 0.7 km/h

Water temperature: 10.6°C

01:00

Waves: 0.4 m

Current speed: 0.5 km/h

Water temperature: 10.6°C

07:00

Waves: 0.4 m

Current speed: 0.7 km/h

Water temperature: 10.5°C

13:00

Waves: 0.4 m

Current speed: 0.7 km/h

Water temperature: 10.6°C

19:00

Waves: 0.5 m

Current speed: 0.9 km/h

Water temperature: 10.7°C

01:00

Waves: 0.5 m

Current speed: 0.5 km/h

Water temperature: 10.7°C

07:00

Waves: 0.4 m

Current speed: 0.5 km/h

Water temperature: 10.7°C

13:00

Waves: 0.5 m

Current speed: 0.5 km/h

Water temperature: 10.7°C

19:00

Waves: 0.6 m

Current speed: 0.5 km/h

Water temperature: 10.8°C

01:00

Waves: 0.5 m

Current speed: 0.5 km/h

Water temperature: 10.8°C

07:00

Waves: 0.5 m

Current speed: 0.5 km/h

Water temperature: 10.8°C

13:00

Waves: 0.5 m

Current speed: 0.4 km/h

Water temperature: 10.8°C

Catalog depth15–25 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.

Updated: cached data

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

Aug 17.2°

Jan2.0°

Feb0.7°

Mar0.7°

Apr2.2°

May6.2°

Jun11.4°

Jul16.1°

Aug17.2°

Sep14.4°

Oct10.3°

Nov7.0°

Dec4.2°

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

Loading…

Dive Types

wreckbrackish 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

Bleak

Alburnus alburnus

DeepLog1

Cryptococcus

Nearby OBIS observations3

Erythrobacteraceae

Nearby OBIS observations3

Nitrosomonadaceae

Nearby OBIS observations3

Prolixibacteraceae

Nearby OBIS observations3

Puniceicoccaceae

Nearby OBIS observations3

Rhodobacteraceae

Nearby OBIS observations3

Tuber

Nearby OBIS observations3

Aeromonadales

Nearby OBIS observations2

Alcaligenaceae

Nearby OBIS observations2

Athelia

Nearby OBIS observations2

Campylobacterales

Nearby OBIS observations2

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

DeepLog + OBIS →