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Castlerock

★★★★★Good
Beach break Faces N all tides Offshore south Best swell north

Best of the week: Monday around 09:00, 3–4 ft and offshore.

Surf now2–3ft0.7 m at 7 s from the NW, wind sea 0.1 m from the SW
Wind11mphSW · offshore · gusts 20
Tide 1.3mFalling · low 03:17 (0.8 m). Works all tides.

Seven days

best session each day · swipe
Sat
1–2 ft Swell NW 8s Wind 11 mph ★★★★★
Sun
3–4 ft Swell N 13s Wind 10 mph ★★★★★
Mon
3–4 ft Swell NW 8s Wind 8 mph ★★★★★
Tue
2–3 ft Swell NW 7s Wind 19 mph ★★★★★
Wed
1–2 ft Swell NW 6s Wind 9 mph ★★★★★
Thu
0–1 ft Swell E 4s Wind 8 mph ★★★★★
Sat 14 Sun 15 Mon 16 Tue 17 Wed 18 Thu 19
Time 06 09 12 15 18 06 09 12 15 18 06 09 12 15 18 06 09 12 15 18 06 09 12 15 18 06 09 12 15 18
Surf ft 1–2 1–2 1–2 1–2 1–2 3–4 4–5 7–10 7–10 5–8 3–4 3–4 2–4 2–4 2–3 2–3 1–2 1–2 1–2 1–2 1–2 0–1 1–2 0–1 0–1 0–1 0–1 0–1 0–1 0–1
Swell 8s 8s 9s 9s 9s 13s 4s 7s 7s 5s 8s 8s 8s 8s 9s 7s 7s 3s 6s 7s 6s 11s 2s 2s 3s 4s 4s 4s 4s 4s
Wind mph 11 14 18 16 17 10 13 17 18 18 11 8 7 8 13 19 17 19 17 17 9 8 9 9 8 8 10 11 11 10
Tide m 1.3↑ 2.1↑ 1.7↓ 1.0↓ 1.2↑ 1.1↑ 1.9↑ 1.9↓ 1.3↓ 1.1↑ 1.0↑ 1.6↑ 1.9↓ 1.5↓ 1.1↓ 1.1↓ 1.3↑ 1.8↑ 1.8↓ 1.2↓ 1.2↓ 1.2↑ 1.7↑ 1.9↓ 1.3↓ 1.4↓ 1.0↑ 1.6↑ 2.0↑ 1.5↓
Rating ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★ ★★★★★

Surf is the face height at the beach after the swell is filtered for the way Castlerock faces. Arrows point to where the swell and wind come from: an arrow pointing up means from the north. Tide is the height at Coleraine above chart datum, rising ↑ or falling ↓; the rating drops when the tide is outside the window this break works on. Amber marks the sessions worth setting an alarm for. From Tuesday the swell comes from Météo-France's 10-day model, which is coarser than the 5 km German model used close in. Hours no model reaches are left blank, not shown as flat.

Exposure

Castlerock faces north. Measured from the seabed, it is open to swell from W round to NE; the brighter a wedge, the deeper the water in that direction and the more of the swell gets in. Anything from behind the headlands scores nothing, however big the buoy says it is.

NESWfaces NNWSW
NW
0.7 m at 7 s (swell) · 100 % reaches the beach
SW
0.1 m at 2 s (wind sea) · blocked, 0 %

How Castlerock works

Swell
Best from the north.
Wind
Offshore is from the south; anything with north in it is onshore and messes it up.
Tide
all tides.

Tide times

  • Sat 03:17Low0.8 m
  • Sat 09:29High2.1 m
  • Sat 15:55Low1.0 m
  • Sat 21:47High1.8 m
  • Sun 04:02Low0.9 m
  • Sun 10:27High2.0 m
  • Sun 17:00Low1.1 m
  • Sun 22:51High1.8 m

Coleraine station, 9 km away. Heights above chart datum, UK time.

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