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Byholmen

FI Leirisaari

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Location & Surroundings

Byholmen is an island in Uusimaa, Finland, at 12 m elevation. The nearest larger town is Hanko, 10 km to the west. The national capital Helsinki is about 105 km to the east. The nearest airport is Kaerdla Airport, about 100 km away.

Also known as: Leirisaari

Overview

Byholmen is island in Finland.

It is located in Hanko, Finland.

It covers about 0.02 square kilometre.

Basic Data

  • Country Finland
  • Located in Hanko
  • Area 0.02 square kilometre
  • Type island (ISL)
  • a tract of land, smaller than a continent, surrounded by water at high water

Geography

  • Coordinates
    59° 53' 7" N, 23° 5' 59" E
  • Elevation DEM: 12 m
  • Timezone Europe/Helsinki
  • Time Shift GMT 2 (DST 3)

Statistics & Country

  • Pop. Density 0 p/km²
  • Built-up 0.1%
  • Settlement Very low density rural
  • Currency Euro (EUR)
  • Phone Prefix +358

Sun & Local Time

Other islands nearby

Nearby

Alternate Names

fi
Leirisaari

Weather in Byholmen

Current conditions and a 3-day (72-hour) weather forecast for Byholmen, updated from the NOAA GFS model.

Now 12.5 C with overcast skies and a 1.4 m/s easterly wind. Next 24h: 12.5 to 14.9 C, max wind 10.1 m/s. Precip around 0.1 mm. Solar peaks near 400 W/m2.

Temperature
12.5 C
Wind
1.4 m/s E (109 deg)
Humidity
69 %
Pressure
1,019.5 hPa
Clouds
80 %
Precip
0.07 mm
Solar
0.0 W/m2
UV-B
n/a
Hour Temp (C) Wind (m/s) Dir (deg) RH (%) Pressure (hPa) Precip (step/total mm) Clouds (%) Solar (W/m2) UV-B (W/m2)
NOW 12.5 1.4 109 69 1,019.5 - / 0.00 80 0.0 n/a
6h 14.2 4.4 200 68 1,017.9 0.00 / 0.00 96 399.8 n/a
12h 14.9 5.3 173 74 1,014.3 0.00 / 0.00 100 155.8 n/a
18h 14.8 7.8 194 84 1,011.6 0.15 / 0.15 100 0.0 n/a
Tomorrow 14.5 10.1 184 90 1,007.2 0.00 / 0.07 100 17.5 n/a
30h 15.7 9.9 189 84 1,004.4 3.61 / 3.68 100 45.3 n/a
36h 14.7 7.6 255 88 1,000.9 0.00 / 3.21 100 25.3 n/a
42h 15.1 10.1 237 80 999.6 0.00 / 0.24 0 0.0 n/a
Thursday 14.2 8.5 246 82 999.7 0.11 / 0.35 68 12.0 n/a
54h 14.7 5.3 260 76 1,001.4 0.09 / 0.44 86 337.8 n/a
60h 13.8 8.7 247 79 1,002.6 0.77 / 1.21 54 105.7 n/a
66h 14.3 8.3 242 74 1,002.9 0.00 / 0.81 100 0.0 n/a
Friday 14.2 8.7 228 89 1,002.5 1.46 / 2.26 100 2.0 n/a
Source: NOAA GFS 0.25° (run 2026-09-15 06:00 UTC).

FAQ

What is the current weather and next 24-hour outlook in Byholmen?
Now 12.5 C with overcast skies and a 1.4 m/s easterly wind. Next 24h: 12.5 to 14.9 C, max wind 10.1 m/s. Precip around 0.1 mm. Solar peaks near 400 W/m2.
Is precipitation expected in the next 24 hours?
Around 0.1 mm of precipitation is expected in the next 24 hours.
When are sunrise and sunset in Byholmen today?
Sunrise around 06:53 and sunset around 19:51 (local time). Day length about 12h 58m.
What is the local time in Byholmen?
Local time is 15:04. Time zone: Europe/Helsinki (UTC+03:00).
What type of place is Byholmen?
Byholmen is a island.
What is the elevation of Byholmen?
DEM 12 m.
Where is Byholmen located?
It is at 59.88522, 23.09961 (latitude, longitude).
Which country is Byholmen in?
It is in Finland.

Links

Sources

Last updated 2015-02-12
geonames https://www.geonames.org/10073529