Turtles Reef surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 1 pm Wednesday 20 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Turtles Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Turtles Reef sea temperature is
25.8° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Turtles Reef this week:

The most powerful waves expected at Turtles Reef in the next 16 days are 0.7m 16s and forecast to arrive on Saturday (May 23) at 2PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Thursday (May 21) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Sat 23rd May)2.5ft (0.7m) 16s

Table - best surf conditions forecast for Turtles Reef over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed afternoon, min 23°C on Wed night). Mainly strong winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Sat afternoon, min 23°C on Sat night). Mainly strong winds.

Wed
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SSW
14
0.5
S
16
0.5
S
16
0.5
S
16
0.6
S
15
0.5
S
14
0.4
S
18
0.6
S
16
0.6
S
16
0.7
S
15
0.6
S
15
0.6
S
13
0.6
S
14
0.6
S
14
0.6
S
14
0.5
S
13
0.5
S
13
0.5
S
13
0.5
S
12
0.6
S
15
0.6
S
14
Wave Graph
Metric surfscale
Energy kJ
149
137
134
126
157
107
97
188
181
215
155
130
132
142
142
87
84
80
73
150
142
Wind (km/h)
30
ENE
35
ENE
35
ENE
35
ENE
30
ENE
35
ENE
40
ENE
25
ENE
35
ENE
35
ENE
30
ENE
35
ENE
35
ENE
25
ENE
30
ENE
30
ENE
25
ENE
35
ENE
30
ENE
30
ENE
25
ENE
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
High Tide
7:28PM0.72m
8:01AM0.20m
8:22PM0.66m
10:01AM0.25m
9:15PM0.60m
11:31AM0.34m
10:06PM0.53m
12:27PM0.43m
10:55PM0.47m
1:08PM0.51m
11:42PM0.41m
1:43PM0.59m
00:27AM0.36m
Low Tide
3:42AM0.13m
12:10PM0.14m
4:27AM0.12m
1:30PM0.22m
5:03AM0.11m
3:27PM0.28m
5:32AM0.09m
5:26PM0.31m
5:58AM0.08m
7:02PM0.30m
6:22AM0.07m
8:16PM0.27m
6:45AM0.07m
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:50
5:50
5:50
5:50
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:06
7:06
7:07
7:07
7:07
7:07
7:07
Temp °C
26
24
24
25
23
24
25
23
24
25
23
24
25
23
25
25
23
25
25
24
25
23
21
20
21
19
20
20
19
19
20
19
20
21
20
22
21
21
21
21
21
22
Swell 1
Height (m)
Direction
Period (s)
0.6
SSW
14
0.4
NNW
10
0.5
S
16
0.5
S
16
0.6
S
15
0.5
S
14
0.5
S
14
0.7
N
6
0.6
S
16
0.7
S
15
0.7
NW
13
0.7
NW
12
0.7
NW
12
0.6
S
14
0.6
S
14
0.5
S
13
0.5
S
13
0.5
S
13
0.5
S
12
0.6
S
15
0.6
S
14
Energy kJ
149
39
134
126
157
107
93
38
181
215
183
154
147
142
142
87
84
79
73
150
142
Swell 2
Height (m)
Direction
Period (s)
0.5
NNW
11
0.5
S
16
0.4
SSW
13
0.4
SE
13
0.4
SE
13
0.4
SE
12
0.4
S
18
0.6
S
16
0.4
NNW
10
0.6
NNW
15
0.6
S
15
0.6
S
13
0.6
S
14
0.6
NNW
11
0.5
NW
11
0.4
NW
11
0.4
NW
10
0.4
S
16
0.3
S
16
0.4
NW
15
0.6
NW
14
Energy kJ
64
137
60
44
40
37
97
188
41
146
155
130
132
84
58
40
27
80
45
56
114
Swell 3
Height (m)
Direction
Period (s)
0.3
S
18
0.4
SSW
13
0.4
NW
10
0.3
NNW
10
0.3
NNW
10
0.4
NW
10
0.4
NNW
11
0.4
NNW
11
0.4
NNW
16
0.4
NW
10
0.4
NW
10
0.3
S
16
0.3
S
16
0.2
SSE
11
0.1
SW
20
0.2
SSE
10
0.2
S
17
0.3
NW
10
0.2
SSE
9
0.2
SSE
8
0.5
SE
8
Energy kJ
56
67
24
19
19
27
46
45
103
26
24
46
46
12
15
9
22
15
8
7
33
Wind waves
Height (m)
Direction
Period (s)
1.6
E
8
2.1
E
8
2.4
E
8
2.4
E
8
2.1
E
9
2
ENE
9
2.1
ENE
8
1.8
E
8
2.1
ENE
8
2.2
ENE
8
2.1
ENE
8
1.7
ENE
8
1.9
ENE
7
1.7
ENE
8
1.6
ENE
8
1.7
ENE
7
1.6
ENE
7
1.4
ENE
7
1.6
ENE
7
1.8
ENE
7
1.4
ENE
7
Energy kJ
349
601
746
771
668
573
578
432
549
597
578
373
375
345
273
305
247
178
214
346
199
Nearest Offshore or Glassy
Rating
(10 max)
1
1
3
1
1
3
3
1
1
1
2
1
1
1
2
1
2
1
1
1
1
Distance (km)
20
159
179
3823
17
170
170
9
159
179
15
161
158
9
17
157
10
178
159
9
9
Best forecast wave conditions in Oahu
Rating
(10 max)
1
2
2
3
2
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
1
3
3
4
3
3
3
2
1
2
3
3
1
3
2
1
4
2
1
4
2
Header Global
Rating
(10 max)
5
5
5
4
7
6
6
7
8
7
5
5
4
4
4
5
5
5
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Turtles Reef Surf forecast

The above surf forecast table for Turtles Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Turtles Reef can be found by selecting the local surf guide option on the grey menu. Our Turtles Reef surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Turtles Reef) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Turtles Reef may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Turtles Reef is 4 km (2 miles) from Makakilo City. If you plan a vacation in Oahu, look for hotels and other accommodation in Makakilo City. Makakilo City has rooms for a wide range of budgets as well as car hire and transport links.

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