Suomenlinna beach
Coastal areas · Finland
Rating right now
Suomenlinna beach is a SW-facing sand beach on the Archipelago Sea coastline near Coastal areas — it picks up SE–W swell and turns cleanest in a N–NE wind, with the most consistent surf through april–october.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~11.1°C (52°F) on average
Jan
2.2°C
36°F · 0.2–5.1°C
Feb
0.8°C
33.4°F · -0.3–3.3°C
Mar
0.8°C
33.4°F · -1.1–2.9°C
Apr
2.4°C
36.3°F · 0.4–4.1°C
May
6.5°C
43.7°F · 2.9–13.9°C
Jun
11.9°C
53.4°F · 7.7–16.4°C
Jul
17°C
62.6°F · 13.3–23°C
Aug
17.6°C
63.7°F · 15.6–20.4°C
Sep
14.8°C
58.6°F · 11.5–18.3°C
Oct
11.1°C
52°F · 8.2–15.3°C
Nov
7.3°C
45.1°F · 3.8–9.8°C
Dec
4.6°C
40.3°F · 0.2–6.8°C
25-year monthly averages from the NOAA OISST satellite record — typical range min–max, not a live reading.
Know before you go
Best swell
SE–W
Best wind
N–NE
Break type
Beach break
Best season
April–October
Safety: Friendly by surf standards, but rip currents and drop-in etiquette still apply. Shifting sandbars create moving rip currents — learn to spot them and use them to get out back.
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