Ronehamn marine weather forecast
Ronehamn (SERNH) is a port in Sweden at 57°7.0′N 18°30.0′E. Today (Nov 2): NNE wind 14–16 kn, waves 0.3–0.8 m, from the NOAA GFS run 2026-11-02 18z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 57°7.0′N 18°30.0′E |
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| UN/LOCODE | SERNH |
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| Harbor size | Small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Fair |
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| Channel depth | 22 m |
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| Anchorage depth | 5 m |
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| Tide range | 0 m |
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| Pilotage | Compulsory |
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| Time zone | Europe/Stockholm |
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Facilities & services (NGA World Port Index)| Cargo handling | Break bulk |
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| Tugs | Assistance available |
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| Supplies | Water |
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| Repairs | Limited |
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| Medical facilities | Available |
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| Largest vessel | 4 m draft |
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10-day marine forecast — Ronehamn
| Date | Wind | Gusts | Waves |
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| NNE 14–16 kn | 17 kn | 0.3–0.8 m |
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| N 13–17 kn | 20 kn | 0.8–0.9 m |
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| NW 9–12 kn | 15 kn | 0.4–0.7 m |
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| NW 12–17 kn | 22 kn | 0.8–0.9 m |
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| NNW 6–8 kn | 10 kn | 0.5–0.6 m |
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| W 16–16 kn | 18 kn | 0.4–0.7 m |
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| WSW 6–6 kn | 6 kn | 0.3–0.6 m |
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| WSW 12–12 kn | 12 kn | 0.2–0.2 m |
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| SSW 15–15 kn | 15 kn | 0.3–0.3 m |
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| ESE 11–11 kn | 13 kn | 0.4–0.4 m |
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Forecast from the NOAA GFS model run , waves from ECMWF WAM. Updated with each model cycle; the live chart below recalculates for your departure time and vessel.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 17 kn on Nov 5. The highest modeled significant wave height is 0.9 m on Nov 3. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Ronehamn right now?
As of the NOAA GFS run 2026-11-02 18z: NNE wind 14–16 kn, waves 0.3–0.8 m. The 10-day outlook is in the forecast table on this page and updates with each model cycle.
How big is the harbor at Ronehamn?
Ronehamn is classed as a small harbor (coastal natural harbor), with fair shelter in the NGA World Port Index.
How deep is the approach to Ronehamn?
Per the NGA World Port Index, the entrance channel carries about 22 m and anchorage depths run about 5 m. Verify against current official charts before entry.
What restricts entry to Ronehamn?
Entry is affected by ice, overhead clearance limits. Check the live forecast on this page and official notices before approach.
What is the largest vessel Ronehamn can take?
The NGA World Port Index lists the maximum vessel at about 4 m draft. Confirm current limits with the port authority before arrival.