Burning Swell
☆ Favourite Share Log a surf

Boca Barranca

Rivermouth · faces 221° SW · Puntarenas, Costa Rica · 9.959, −84.741

Times in CST

Poor · best window 00:00–01:00
1.2 m
15 s period · SSW 208°
Clean groundswell, 17° inside the swell window · sampled 23 km offshore
Wind
5 km/h
S · crossS 176° · cross
Tide
1.8 m
falling · L 13:00falling · low 13:00 (0.5 m)
Energy
9 kJ
poor
Sky
29°
thunder · 08:00thunder · 08:00 · water 30° · OISST 15 Oct, preliminary
Ensemble · 06Z2 of 3 models reporting · updated 13:55 UTC

Next 16 days

tap a day for its hourspick a day for hour by hour · ← → step it · 3-hourly to day 16
  • swell · 10–14 s
  • offshore
  • cross-off
  • cross
  • cross-on
  • onshore
  • glassy

Hourly detail

Saturday 10 October poorbest 09:00–10:00 · light 05:27–17:24

00 
poor
1.3 m14s SSW1.3 mtide0.7 ↑
glassy 2 km/hgust3 km/h 25°
11 kJ
03 
poor
1.3 m15s SSW1.3 mtide1.3 ↓
offshore 3 km/hgust4 km/h 25°
12 kJ
06 
poor
1.3 m15s SSW1.3 mtide−0.5 ↓
cross-off 6 km/hgust5 km/h 25°
12 kJ
09 
fair
1.3 m14s SSW1.3 mtide−1.3 ↑
cross-on 4 km/hgust3 km/h 29°
11 kJ
12 
poor
1.3 m14s SSW1.3 mtide0.3 ↑
cross-on 11 km/hgust9 km/h 29° · 2.2 mm/h
10 kJ
15 
poor
1.3 m14s SSW1.3 mtide1.3 ↓
cross 10 km/hgust15 km/h 27° · 4.1 mm/h
11 kJ
18 
poor
1.3 m13s SSW1.3 mtide−0.4 ↓
cross-off 7 km/hgust12 km/h 24° · 8.4 mm/h
9 kJ
21 
fair
1.2 m13s SSW1.2 mtide−1.3 ↑
glassy 1 km/hgust2 km/h 23°
9 kJ

Sunday 11 October poorbest 00:00–01:00 · light 05:27–17:23

00 
poor
1.2 m13s SSW1.2 mtide0.3 ↑
cross 6 km/hgust7 km/h 23° · 0.4 mm/h
9 kJ
03 
poor
1.2 m13s SSW1.2 mtide1.5 ↓
cross 3 km/hgust3 km/h 23°
8 kJ
06 
poor
1.2 m13s SSW1.2 mtide0.0 ↓
cross 6 km/hgust7 km/h 24°
8 kJ
09 
poor
1.2 m13s SSW1.2 mtide−1.5 ↑
cross-on 7 km/hgust8 km/h 27°
8 kJ
12 
poor
1.2 m13s SSW1.2 mtide−0.2 ↑
onshore 8 km/hgust6 km/h 28° · 1.4 mm/h
8 kJ
15 
poor
1.2 m13s SSW1.2 mtide1.3 ↓
cross 13 km/hgust16 km/h 26° · 3.5 mm/h
8 kJ
18 
poor
1.2 m13s SSW1.2 mtide0.1 ↓
cross-off 5 km/hgust6 km/h 25° · 2.6 mm/h
8 kJ
21 
poor
1.2 m13s SSW1.2 mtide−1.4 ↑
offshore 4 km/hgust4 km/h 24°
8 kJ

Monday 12 October fairbest 21:00–22:00 · light 05:27–17:22

00 
poor
1.2 m14s SSW1.2 mtide−0.2 ↑
glassy 2 km/hgust2 km/h 25°
9 kJ
03 
poor
1.2 m14s SSW1.2 mtide1.5 ↓
cross-off 5 km/hgust6 km/h 24°
9 kJ
06 
poor
1.2 m15s SSW1.2 mtide0.5 ↓
cross-off 5 km/hgust4 km/h 24°
10 kJ
09 
poor
1.2 m15s SSW1.2 mtide−1.4 ↓
onshore 7 km/hgust7 km/h 29°
10 kJ
12 
poor
1.3 m15s SSW1.3 mtide−0.6 ↑
onshore 9 km/hgust9 km/h 29° · 1.5 mm/h
11 kJ
15 
poor
1.3 m15s SSW1.3 mtide1.2 ↑
cross-on 8 km/hgust7 km/h 28° · 2.3 mm/h
12 kJ
18 
poor
1.3 m15s SSW1.3 mtide0.6 ↓
cross-off 7 km/hgust9 km/h 25° · 2.5 mm/h
12 kJ
21 
fair
1.3 m15s SSW1.3 mtide−1.2 ↓
cross-off 9 km/hgust11 km/h 25°
12 kJ

Tuesday 13 October poorbest 09:00–10:00 · light 05:27–17:22

00 
poor
1.4 m15s SSW1.4 mtide−0.6 ↑
cross-off 4 km/hgust6 km/h 24°
12 kJ
03 
poor
1.4 m15s SSW1.4 mtide1.3 ↑
offshore 5 km/hgust5 km/h 24°
13 kJ
06 
poor
1.4 m14s SSW1.4 mtide0.9 ↓
offshore 4 km/hgust4 km/h 24°
12 kJ
09 
fair
1.4 m14s SSW1.4 mtide−1.1 ↓
cross-on 6 km/hgust4 km/h 28°
12 kJ
12 
poor
1.4 m14s SSW1.4 mtide−1.0 ↑
cross-on 11 km/hgust8 km/h 29°
12 kJ
15 
poor
1.4 m14s SSW1.4 mtide0.9 ↑
cross 11 km/hgust7 km/h 29° · 0.8 mm/h
12 kJ
18 
poor
1.3 m14s SSW1.3 mtide0.9 ↓
cross 8 km/hgust12 km/h 25°
11 kJ
21 
fair
1.3 m14s SSW1.3 mtide−0.9 ↓
cross-off 4 km/hgust4 km/h 25°
11 kJ

Wednesday 14 October poorbest 00:00–01:00 · light 05:27–17:21

00 
fair
1.3 m14s SSW1.3 mtide−0.9 ↑
offshore 4 km/hgust4 km/h 24°
11 kJ
03 
poor
1.3 m14s SSW1.3 mtide0.9 ↑
offshore 4 km/hgust4 km/h 24°
11 kJ
06 
poor
1.3 m14s SSW1.3 mtide1.1 ↓
offshore 4 km/hgust4 km/h 24°
11 kJ
09 
fair
1.3 m14s SSW1.3 mtide−0.8 ↓
cross-on 5 km/hgust3 km/h 28°
11 kJ
12 
poor
1.3 m14s SSW1.3 mtide−1.2 ↑
cross-on 11 km/hgust7 km/h 29° · 1.6 mm/h
11 kJ
15 
poor
1.3 m14s SSW1.3 mtide0.5 ↑
cross-on 11 km/hgust12 km/h 28° · 2.6 mm/h
11 kJ
18 
poor
1.3 m14s SSW1.3 mtide1.0 ↓
glassy 1 km/hgust2 km/h 26° · 1.0 mm/h
10 kJ
21 
poor
1.3 m13s SSW1.3 mtide−0.5 ↓
offshore 6 km/hgust6 km/h 25°
10 kJ

Thursday 15 October poorbest 00:00–01:00 · light 05:27–17:21

00 
fair
1.2 m13s SSW1.2 mtide−1.0 ↑
cross-off 5 km/hgust5 km/h 25°
9 kJ
03 
poor
1.2 m13s SSW1.2 mtide0.5 ↑
cross-off 5 km/hgust5 km/h 25°
9 kJ
06 
poor
1.2 m13s SSW1.2 mtide1.2 ↓
cross-off 5 km/hgust5 km/h 25°
8 kJ
09 
poor
1.2 m13s SSW1.2 mtide−0.3 ↓
cross-on 4 km/hgust4 km/h 29°
8 kJ
12 
poor
1.2 m13s SSW1.2 mtide−1.2 ↑
cross-on 10 km/hgust9 km/h 29°
8 kJ
15 
poor
1.2 m13s SSW1.2 mtide0.1 ↑
cross 10 km/hgust9 km/h 29° · 0.4 mm/h
8 kJ
18 
poor
1.2 m13s SSW1.2 mtide1.0 ↓
cross 8 km/hgust10 km/h 26° · 0.9 mm/h
8 kJ
21 
poor
1.1 m13s SSW1.1 mtide−0.1 ↓
offshore 5 km/hgust5 km/h 25° · 0.5 mm/h
7 kJ

Friday 16 October poorbest 00:00–01:00 · light 05:27–17:20

00 
poor
1.1 m12s SSW1.1 mtide−0.9 ↑
offshore 5 km/hgust5 km/h 25° · 0.7 mm/h
7 kJ
03 
poor
1.1 m12s SSW1.1 mtide0.1 ↑
offshore 5 km/hgust5 km/h 25°
7 kJ
06 
poor
1.0 m12s SSW1.0 mtide1.1 ↓
cross-off 4 km/hgust3 km/h 25°
6 kJ
09 
poor
1.0 m13s SSW1.0 mtide0.1 ↓
onshore 5 km/hgust3 km/h 29°
6 kJ
12 
poor
1.1 m13s SSW1.1 mtide−1.1 ↑
cross-on 10 km/hgust8 km/h 29° · 1.2 mm/h
7 kJ
15 
poor
1.1 m14s SSW1.1 mtide−0.3 ↑
cross 10 km/hgust9 km/h 28° · 1.0 mm/h
8 kJ
18 
poor
1.1 m15s SSW1.1 mtide0.8 ↑
cross 7 km/hgust9 km/h 26° · 1.0 mm/h
8 kJ
21 
poor
1.1 m16s SSW1.1 mtide0.3 ↓
cross-off 5 km/hgust7 km/h 26°
8 kJ

Today 17 October poorbest 00:00–01:00 · light 05:27–17:20 25° 30°

00 
poor
1.1 m15s SSW1.1 mtide−0.8 ↑
cross-off 3 km/hgust4 km/h 25°
8 kJ
03 
poor
1.1 m15s SSW1.1 mtide−0.2 ↑
offshore 6 km/hgust6 km/h 25°
9 kJ
now 
poor
1.1 m15s SSW1.1 mtide0.9 ↑
offshore 5 km/hgust5 km/h 25°
9 kJ
09 
poor
1.2 m15s SSW1.2 mtide0.4 ↓
cross 5 km/hgust5 km/h 29°
9 kJ
12 
poor
1.2 m15s SSW1.2 mtide−0.8 ↓
cross 15 km/hgust15 km/h 29° · 0.7 mm/h
10 kJ
15 
poor
1.3 m15s SSW1.3 mtide−0.5 ↑
cross 12 km/hgust15 km/h 27° · 1.0 mm/h
11 kJ
18 
poor
1.3 m15s SSW1.3 mtide0.5 ↑
cross-off 6 km/hgust8 km/h 25°
12 kJ
21 
poor
1.3 m16s SSW1.3 mtide0.5 ↓
cross-off 3 km/hgust4 km/h 25° · 0.5 mm/h
13 kJ

Sunday 18 October fairbest 00:00–01:00 · light 05:27–17:19 28° 30°

00 
fair
1.4 m16s SSW1.4 mtide−0.5 ↓
offshore 6 km/hgust7 km/h 25°
14 kJ
03 
fair
1.4 m16s SSW1.4 mtide−0.4 ↑
offshore 4 km/hgust4 km/h 24° · 0.4 mm/h
14 kJ
06 
poor
1.5 m16s SSW1.5 mtide0.6 ↑
offshore 4 km/hgust4 km/h 24°
15 kJ
09 
poor
1.5 m15s SSW1.5 mtide0.6 ↓
cross-on 8 km/hgust11 km/h 26°
15 kJ
12 
fair
1.5 m15s SSW1.5 mtide−0.5 ↓
cross-on 10 km/hgust10 km/h 30°
15 kJ
15 
fair
1.5 m15s SSW1.5 mtide−0.7 ↑
onshore 8 km/hgust11 km/h 28° · 0.3 mm/h
15 kJ
18 
fair
1.5 m15s SSW1.5 mtide0.2 ↑
cross 6 km/hgust7 km/h 26°
14 kJ
21 
poor
1.5 m14s SSW1.5 mtide0.6 ↓
offshore 4 km/hgust5 km/h 25° · 0.5 mm/h
14 kJ

Monday 19 October fairbest 00:00–01:00 · light 05:28–17:19 24° 30°

00 
fair
1.4 m14s SSW1.4 mtide−0.2 ↓
cross-off 4 km/hgust5 km/h 24°
13 kJ
03 
fair
1.4 m14s SSW1.4 mtide−0.5 ↑
cross-off 6 km/hgust5 km/h 24°
13 kJ
06 
fair
1.4 m14s SSW1.4 mtide0.2 ↑
cross-off 4 km/hgust4 km/h 24°
12 kJ
09 
poor
1.4 m14s SSW1.4 mtide0.7 ↓
onshore 5 km/hgust6 km/h 29°
12 kJ
12 
poor
1.3 m14s SSW1.3 mtide−0.1 ↓
onshore 8 km/hgust7 km/h 29° · 1.2 mm/h
11 kJ
15 
fair
1.4 m13s SSW1.4 mtide−0.7 ↑
cross-on 11 km/hgust9 km/h 28° · 1.0 mm/h
11 kJ
18 
poor
1.3 m13s SSW1.3 mtide−0.1 ↑
cross 3 km/hgust5 km/h 26° · 2.4 mm/h
11 kJ
21 
poor
1.3 m13s SSW1.3 mtide0.6 ↓
cross-off 4 km/hgust4 km/h 25°
10 kJ

Tuesday 20 October poorbest 03:00–04:00 · light 05:28–17:19 23° 30°

00 
poor
1.3 m13s SSW1.3 mtide0.2 ↓
cross 4 km/hgust4 km/h 24°
10 kJ
03 
fair
1.3 m13s SSW1.3 mtide−0.5 ↑
cross-off 6 km/hgust6 km/h 24°
10 kJ
06 
poor
1.3 m13s SSW1.3 mtide−0.1 ↑
cross-off 4 km/hgust4 km/h 24°
10 kJ
09 
poor
1.3 m13s SSW1.3 mtide0.6 ↑
onshore 3 km/hgust4 km/h 28°
10 kJ
12 
poor
1.3 m13s SSW1.3 mtide0.3 ↓
cross-on 11 km/hgust8 km/h 28° · 1.2 mm/h
9 kJ
15 
poor
1.3 m13s SSW1.3 mtide−0.6 ↓
cross-on 10 km/hgust12 km/h 27° · 1.7 mm/h
10 kJ
18 
fair
1.3 m13s SSW1.3 mtide−0.4 ↑
cross 4 km/hgust7 km/h 24° · 22.1 mm/h
10 kJ
21 
poor
1.3 m13s SSW1.3 mtide0.5 ↑
cross-off 6 km/hgust9 km/h 23° · 7.5 mm/h
10 kJ

Wednesday 21 October poorbest 03:00–04:00 · light 05:28–17:18 24° 30°

00 
poor
1.3 m13s SSW1.3 mtide0.5 ↓
offshore 5 km/hgust6 km/h 23° · 0.3 mm/h
10 kJ
03 
fair
1.3 m14s SSW1.3 mtide−0.4 ↓
glassy 1 km/hgust1 km/h 23°
10 kJ
06 
fair
1.3 m14s SSW1.3 mtide−0.5 ↑
cross-off 3 km/hgust3 km/h 23°
10 kJ
09 
poor
1.3 m14s SSW1.3 mtide0.4 ↑
onshore 7 km/hgust7 km/h 27° · 0.3 mm/h
10 kJ
12 
poor
1.3 m14s SSW1.3 mtide0.6 ↓
onshore 8 km/hgust9 km/h 27° · 1.7 mm/h
11 kJ
15 
fair
1.3 m15s SSW1.3 mtide−0.4 ↓
cross 4 km/hgust4 km/h 27° · 2.0 mm/h
11 kJ
18 
fair
1.3 m15s SSW1.3 mtide−0.7 ↑
offshore 2 km/hgust3 km/h 25° · 0.7 mm/h
12 kJ
21 
poor
1.3 m15s SSW1.3 mtide0.3 ↑
offshore 8 km/hgust11 km/h 24° · 2.7 mm/h
12 kJ

Thursday 22 October poorbest 06:00–09:00 · light 05:28–17:18 28° 30°

00 
poor
1.3 m15s SSW1.3 mtide0.8 ↓
cross-off 9 km/hgust14 km/h 23° · 0.3 mm/h
12 kJ
03 
poor
1.3 m16s SSW1.3 mtide−0.2 ↓
cross-off 6 km/hgust7 km/h 23° · 0.2 mm/h
12 kJ
06 
fair
1.3 m16s SSW1.3 mtide−0.7 ↑
cross 5 km/hgust6 km/h 23°
12 kJ
09 
poor
1.3 m15s SSW1.3 mtide0.1 ↑
cross 4 km/hgust15 km/h 28°
12 kJ
12 
poor
1.4 m15s SSW1.4 mtide0.8 ↓
onshore 10 km/hgust10 km/h 28°
13 kJ
15 
poor
1.3 m15s SSW1.3 mtide−0.1 ↓
cross 15 km/hgust11 km/h 28°
12 kJ
18 
fair
1.3 m15s SSW1.3 mtide−0.8 ↑
cross 5 km/hgust6 km/h 25°
12 kJ
21 
poor
1.3 m15s SSW1.3 mtide0.0 ↑
cross-off 3 km/hgust4 km/h 25°
12 kJ

Friday 23 October poorbest 03:00–09:00 · light 05:28–17:17 28° 30°

00 
poor
1.3 m15s SSW1.3 mtide1.0 ↓
cross-off 5 km/hgust4 km/h 24°
11 kJ
03 
fair
1.5 m13s SSW1.5 mtide0.2 ↓
cross-off 8 km/hgust9 km/h 23°
13 kJ
06 
fair
1.5 m13s SSW1.5 mtide−0.9 ↑
cross-off 6 km/hgust9 km/h 23°
13 kJ
09 
poor
1.4 m13s SSW1.4 mtide−0.3 ↑
cross-on 5 km/hgust9 km/h 28°
13 kJ
12 
poor
1.4 m13s SSW1.4 mtide0.9 ↓
onshore 12 km/hgust10 km/h 29°
12 kJ
15 
poor
1.4 m13s SSW1.4 mtide0.3 ↓
cross-on 5 km/hgust4 km/h 28°
12 kJ
18 
fair
1.4 m13s SSW1.4 mtide−0.9 ↑
cross-off 6 km/hgust7 km/h 26°
12 kJ
21 
fair
1.4 m13s SSW1.4 mtide−0.3 ↑
offshore 4 km/hgust5 km/h 25°
12 kJ

Saturday 24 October poorbest 00:00–03:00 · light 05:28–17:17 24° 30°

00 
poor
1.4 m13s SSW1.4 mtide1.1 ↓
cross-off 6 km/hgust5 km/h 24°
12 kJ
03 
 not rated
– m– tide0.6↓
7 km/hgust6 km/h 23°
–kJ
06 
poor
1.2 m14s SSW1.2 mtide−1.0 ↑
cross-off 6 km/hgust7 km/h 23°
9 kJ
09 
 not rated
– m– tide−0.7↑
5 km/hgust6 km/h 28°
–kJ
12 
poor
1.2 m14s SSW1.2 mtide0.8 ↓
onshore 12 km/hgust9 km/h 29°
9 kJ
15 
 not rated
– m– tide0.7↓
6 km/hgust7 km/h 29°
–kJ
18 
poor
1.2 m13s SSW1.2 mtide−0.9 ↑
cross-off 5 km/hgust6 km/h 26°
9 kJ
21 
 not rated
– m– tide−0.7↑
5 km/hgust6 km/h 25°
–kJ

Sunday 25 October poorbest 00:00–03:00 · light 05:28–17:17 24° 30°

00 
poor
1.2 m13s SSW1.2 mtide1.0 ↑
cross-off 6 km/hgust5 km/h 24°
8 kJ
03 
 not rated
– m– tide1.1↓
7 km/hgust7 km/h 23°
–kJ
06 
poor
1.1 m13s SSW1.1 mtide−0.8 ↓
cross-off 7 km/hgust7 km/h 23°
7 kJ
09 
 not rated
– m– tide−1.1↑
5 km/hgust5 km/h 29°
–kJ
12 
poor
1.1 m13s SSW1.1 mtide0.6 ↑
onshore 10 km/hgust8 km/h 29°
7 kJ
15 
 not rated
– m– tide1.1↓
10 km/hgust9 km/h 28°
–kJ
18 
poor
1.1 m12s SSW1.1 mtide−0.6 ↓
cross 4 km/hgust5 km/h 25°
7 kJ
21 
 not rated
– m– tide−1.1↑
5 km/hgust5 km/h 25°
–kJ

Monday 26 October poorbest 00:00–03:00 · light 05:28–17:16 23° 30°

00 
poor
1.1 m12s SSW1.1 mtide0.7 ↑
cross-off 7 km/hgust8 km/h 24°
6 kJ
03 
 not rated
– m– tide1.4↓
6 km/hgust7 km/h 23°
–kJ
06 
poor
1.1 m11s SSW1.1 mtide−0.4 ↓
cross-off 7 km/hgust8 km/h 23°
6 kJ
09 
 not rated
– m– tide−1.5↑
4 km/hgust6 km/h 29°
–kJ
12 
poor
1.1 m11s SSW1.1 mtide0.2 ↑
onshore 13 km/hgust10 km/h 29°
5 kJ
15 
 not rated
– m– tide1.3↓
9 km/hgust8 km/h 29°
–kJ
18 
poor
1.1 m10s SSW1.1 mtide−0.2 ↓
cross 6 km/hgust7 km/h 26°
5 kJ
21 
 not rated
– m– tide−1.4↑
5 km/hgust6 km/h 25°
–kJ

Tuesday 27 Octobernot ratedlight 05:29–17:16

00 
 not rated
– m– tide0.2
6 km/hgust6 km/h 24°
–kJ

Wednesday 28 Octobernot ratedlight 05:29–17:15

The model publishes no step for this day.

Thursday 29 Octobernot ratedlight 05:29–17:15

The model publishes no step for this day.

Friday 30 Octobernot ratedlight 05:29–17:15

The model publishes no step for this day.

Saturday 31 Octobernot ratedlight 05:29–17:15

The model publishes no step for this day.

Sunday 1 Novembernot ratedlight 05:30–17:15

The model publishes no step for this day.

Swell read from the nearest model point, up to 23 km. Swell travels, so it still holds here.

Rated on the total sea: this model does not split the sea into swells, so its stars read the combined sea.

swipe for the next day

Tide

NOAA prediction
0006121824
now 1.8 m ↓L 00:30 · 0.6H 07:00 · 2.3L 13:00 · 0.5H 19:30 · 2.1

Heights vs MLLW

Optimal: low.

Swell window

In the window
175°225°Boca Barranca

© OpenStreetMap · Protomaps · NOAA GFS-Wave 06Z

Sat 17 · 09:00
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  • 1.2 m · 15 s · SSW 208°In the window

Window S–SW, 175°–225°.

Type
Rivermouth
Faces
221° SW
Optimal period
—
Optimal tide
low
Level
Advanced
Coordinates
9.9586, −84.7408

Model agreement

High

ECMWF IFS-WAM1.1 m

DWD GWAM1.2 m

No buoy within 25 km, so agreement can’t be scored here.

Better right now nearby

within 30 km
Tivives Goodrivermouthintermediate Puntarenas, Costa Rica · 11 km away 28° 30°1.1m 17sSSWcross-off 8 km/h Puerto Caldera FairintermediatePuntarenas, Costa Rica · 5.2 km away 29° 30°1.2m 15sSSWcross 5 km/h
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