Updated
Tremadog Bay (also spelled Tremadoc Bay; Welsh: Bae Tremadog), is a shallow inlet of Cardigan Bay in North Wales. It comprises the area between Mochras (Shell Island) in the east and the Trwyn Cilan headland of the Llŷn Peninsula in the west. The Sarn Badrig reef extends south-west from Mochras and forms a natural barrier between Tremadog Bay and Cardigan Bay proper.
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Weather at Tremadoc Bay
51°F, Clear · H 50° / L 42° · 86% chance of rain3-day forecast
H: 50° L: 42°
Clear

51°
|
Feels like 48°
Precipitation
86%
Humidity
82%
Wind
8 mph
UV Index
0
Weather notes:
🌧️Rain expected
12 AM

42°
3 AM

51°
6 AM

50°
9 AM

46°
12 PM

46°
3 PM

47°
6 PM

49°
9 PM

48°
Frequently asked questions
- Where is Tremadoc Bay?
- Tremadoc Bay is a bay in Wales.
- Can you swim at Tremadoc Bay?
- There is no fixed answer for Tremadoc Bay: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Tremadoc Bay in Wales. Check current water conditions before you go, and follow posted signs and local guidance.
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Location & Contact
Wales
💡 Best times & visiting tips
- ›Weekday mornings (8–10 AM) are typically less crowded
- ›Check the forecast 2–3 days ahead for best planning
- ›Avoid holiday weekends for a quieter experience
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