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Castlerock

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

Best of the week: Tuesday around 06:00, 4–6 ft and offshore.

Surf now3–4ft0.9 m at 12 s from the NW, wind sea 0.5 m from the SW
Wind10mphSW · offshore · gusts 18
Tide 0.9mRising · high 03:50 (1.8 m). Works all tides.

Seven days

best session each day · swipe
Sun
3–4 ft Swell NW 12s Wind 10 mph ★★★★★
Mon
2–4 ft Swell NW 11s Wind 11 mph ★★★★★
Tue
4–6 ft Swell NW 10s Wind 7 mph ★★★★★
Wed
3–5 ft Swell NW 9s Wind 15 mph ★★★★★
Thu
3–5 ft Swell NW 6s Wind 7 mph ★★★★★
Fri
1–3 ft Swell NW 3s Wind 21 mph ★★★★★
Sat
5–8 ft Swell NW 9s Wind 20 mph ★★★★★
Sun 4 Mon 5 Tue 6 Wed 7 Thu 8 Fri 9 Sat 10
Time 22 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 3–4 2–4 2–4 2–4 3–4 3–5 4–6 3–5 3–5 3–5 3–4 2–4 2–4 3–5 4–5 4–7 3–5 3–5 3–5 2–4 2–3 1–2 1–2 1–2 1–3 2–3 3–5 4–6 5–7 5–7 5–8
Swell 12s 11s 10s 10s 10s 11s 10s 10s 10s 9s 9s 8s 8s 9s 5s 5s 7s 6s 6s 6s 7s 7s 7s 7s 4s 4s 7s 8s 9s 9s 9s
Wind mph 10 13 12 13 6 8 7 7 7 8 7 10 11 15 19 19 13 10 5 3 9 13 16 22 19 16 16 18 22 21 17
Tide m 0.9↑ 1.5↓ 1.0↓ 1.3↑ 1.9↑ 1.8↓ 1.8↓ 1.0↓ 1.0↑ 1.8↑ 2.0↓ 2.0↓ 1.1↓ 0.7↑ 1.5↑ 2.2↓ 2.0↑ 1.3↓ 0.5↓ 1.2↑ 2.2↑ 2.0↑ 1.6↓ 0.4↓ 0.9↑ 2.2↑ 2.0↑ 1.8↓ 0.5↓ 0.7↑ 2.1↑
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 Thursday 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
0.9 m at 12 s (swell) · 100 % reaches the beach
SW
0.5 m at 3 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

  • Sun 21:51Low0.9 m
  • Mon 03:50High1.8 m
  • Mon 09:19Low1.0 m
  • Mon 16:21High2.0 m
  • Mon 22:53Low0.7 m
  • Tue 04:49High1.9 m
  • Tue 10:35Low0.8 m
  • Tue 17:12High2.1 m

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

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