Turtles Reef surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 7 am Friday 22 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 surf forecast for Turtles Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 27) at 2AM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 0.6m and 14s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Turtles Reef in the next 16 days are 0.9m 19s and forecast to arrive on Friday (May 29) 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 2.3m 8s period and expected on Saturday (May 23) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 27th May)2.5ft (0.7m) 16s
Best Surf 2AM (Wed 27th May)2.5ft (0.7m) 16s
Most Powerful 2PM (Fri 29th May)3ft (0.9m) 19s

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 25°C on Fri afternoon, min 23°C on Fri morning). Mainly strong winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Tue afternoon, min 23°C on Mon morning). Mainly fresh winds.

Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
0
0
0
0
0
0
0
0
0
0
2
1
1
2
0
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
S
14
0.4
S
18
0.6
S
16
0.6
S
16
0.7
S
15
0.6
S
15
0.5
S
13
0.5
S
14
0.6
S
14
0.6
S
14
0.5
S
13
0.5
S
13
0.4
S
16
0.4
NW
18
0.7
NW
16
0.8
NW
15
0.9
NW
14
0.8
NW
13
0.6
NW
12
0.8
NW
12
0.6
S
21
Wave Graph
Metric surfscale
Energy kJ
107
97
188
181
215
155
92
93
142
140
87
84
79
114
257
255
308
205
118
178
326
Wind (km/h)
35
ENE
35
ENE
30
ENE
40
ENE
35
ENE
30
ENE
35
ENE
30
ENE
25
ENE
25
ENE
30
ENE
25
ENE
25
ENE
30
ENE
20
ENE
25
ENE
25
ENE
20
ENE
25
ENE
30
ENE
20
ENE
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
High Tide
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
2:15PM0.64m
1:11AM0.31m
2:46PM0.68m
1:52AM0.28m
Low Tide
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
9:14PM0.24m
7:10AM0.06m
10:02PM0.21m
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
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>
7:06
7:07
7:07
7:07
7:07
7:07
7:08
Temp °C
24
25
23
24
25
23
24
25
23
25
25
23
25
26
24
25
26
24
25
25
24
20
20
19
19
21
20
20
20
20
22
21
21
22
23
21
22
23
21
23
23
22
Swell 1
Height (m)
Direction
Period (s)
0.5
S
14
0.5
S
14
0.6
S
16
0.6
S
16
0.7
S
15
0.7
NW
13
0.7
NW
12
0.7
NW
12
0.6
NNW
11
0.6
S
14
0.5
S
13
0.7
NNE
8
0.4
S
13
0.5
S
12
0.7
NW
16
1.2
ENE
7
0.9
NW
14
1.3
E
7
1.1
ENE
7
0.8
NW
12
0.7
NW
12
Energy kJ
107
93
188
181
215
183
154
147
84
140
87
58
51
73
257
147
308
176
125
178
144
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
12
0.4
S
18
0.4
NNW
11
0.4
NNW
10
0.6
NNW
15
0.6
S
15
0.5
S
13
0.5
S
14
0.6
S
14
0.5
NW
11
0.5
NW
11
0.5
S
13
0.4
S
16
0.4
NW
18
0.6
S
14
0.8
NW
15
0.6
S
14
0.8
NW
13
0.6
NW
12
0.6
S
12
0.6
S
21
Energy kJ
37
97
45
41
146
155
92
93
142
58
56
84
79
114
148
255
129
205
118
103
326
Swell 3
Height (m)
Direction
Period (s)
0.4
NW
10
0.4
NNW
11
0.5
S
13
0.4
NNW
16
0.4
NW
10
0.4
NW
10
0.3
S
16
0.3
S
16
0.2
SSE
11
0.2
SSE
9
0.2
SSE
9
0.4
NW
10
0.3
NW
10
0.3
S
16
0.2
NNW
9
0.6
S
14
0.4
SE
8
0.6
S
13
0.6
S
12
0.3
S
22
0.6
S
12
Energy kJ
27
46
90
103
26
24
46
46
11
8
8
27
15
45
8
144
17
121
105
89
97
Wind waves
Height (m)
Direction
Period (s)
1.8
ENE
9
2.1
ENE
8
2.1
ENE
8
2.3
ENE
8
2.1
ENE
8
1.9
ENE
8
1.8
ENE
8
1.9
ENE
7
1.8
ENE
8
1.5
ENE
8
1.6
ENE
7
1.3
E
7
1.4
ENE
7
1.5
ENE
7
1.6
E
7
1.4
ENE
7
1.4
ENE
7
1.3
ENE
7
Energy kJ
505
592
561
669
592
463
404
387
356
240
284
168
193
195
255
178
186
176
Nearest Offshore or Glassy
Rating
(10 max)
3
1
1
3
2
2
1
1
1
1
1
1
1
2
2
2
2
2
1
2
2
Distance (km)
170
170
157
179
170
15
157
157
13
9
157
10
10
15
0
9
9
0
1
13
0
Best forecast wave conditions in Oahu
Rating
(10 max)
3
2
2
1
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
3
3
3
1
1
3
2
1
3
2
2
3
2
2
5
2
2
4
Header Global
Rating
(10 max)
5
4
8
5
5
5
5
5
5
4
5
5
5
6
6
6
5
7
9
9
7
  • 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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