Bay of Bothnia
Finland
Last wave reading:
Now at the buoy
Significant wave height at the buoy
6.2 ft
1.9 m
- Dominant period
- 5.9 s
- Direction
- from ENE 60°
This station does not send a swell and wind-wave split, so the numbers are for the whole sea.
Short-period wind chop: 6.2 ft at 5.9 s from the ENE. Building over the last 6 hours, up 1.2 ft.
Significant wave height is the average of the biggest third of waves at the buoy. It is not surf height at a beach.
Trend at the buoy
Height at the buoy
- Total (significant height)
Period
- Dominant period
Hourly means of the buoy's readings. Arrows point the way the waves travel.
Model vs the buoy
- Buoy, hourly
- Model, past days
- Model forecast
Over the last day, the model tracked the buoy within 10%.
| Day | Height | Peak period | From |
|---|---|---|---|
| Fri, Nov 13 | 8.0 ft | 6.5 s | NE |
| Sat, Nov 14 | 9.3 ft | 6.8 s | NNE |
| Sun, Nov 15 | 5.6 ft | 5.6 s | SW |
| Mon, Nov 16 | 8.4 ft | 7.1 s | SSW |
| Tue, Nov 17 | 7.0 ft | 6.1 s | S |
| Wed, Nov 18 | 3.2 ft | 4.4 s | S |
| Thu, Nov 19 | 1.6 ft | 3.6 s | S |
| Fri, Nov 20 | 1.2 ft | 3 s | S |
ECMWF WAM wave model via Open-Meteo, nearest model cell (64.750°N, 23.250°E). Both lines are significant wave height at sea, the same measure the buoy reports. Model output, not a Quiver beach forecast.
Nearby buoys
- Bothnian Sea4.6 ft · 5 sLive · 354 km
- Finngrundet5.8 ft · 6.7 sLive · 482 km
- Helsinki Suomenlinna3.3 ft · 5 sLive · 515 km
- Loviisa Orrengrund5.9 ft · 6.1 sLive · 521 km
- Gulf of Finland5.6 ft · 5 sLive · 535 km
Other readings
- Water temperature
- 45°F (7.0°C)
Reported Nov 13, 11:30 AM GMT+2.
How to read this buoy
Over the readings shown here, most wave energy reached this buoy from the NE.
Biggest hourly reading in that record: 6.4 ft at 5.6 s on Nov 13.
- Station id
- 137228
- Operator
- Finnish Meteorological Institute
- Program
- FMI wave buoys
- Position
- 64.684°N, 23.238°E
- Type
- Moored buoy
- Local time zone
- GMT+2 (open ocean)
- Swell split
- No, whole-sea numbers only
Source: Finnish Meteorological Institute (FMI) open data. Licence: CC BY 4.0. Changes: Quiver converts the units (feet, knots, °F) and shows a subset of the published fields.
Not for navigation. Readings can be late, missing or wrong; check official marine forecasts before going to sea.
Buoy terms
- Significant height
- The average of the biggest third of waves the buoy measured. Sets in the surf zone can be bigger or smaller.
- Dominant period
- Seconds between the waves carrying the most energy. Longer period means more power and more bend around points.
- Swell vs wind waves
- Swell was made by distant wind; wind waves were made nearby. The buoy splits its spectrum at a cutoff period to report each.
- Direction
- Where waves come from, in degrees true. 270° is from the west.
