Surf Break

Lat Long: 21.35° N 158.13° W

Turtles Reef Surf Forecast and Surf Report

Issued: 1 am 18 Oct 2026 (local time)

Forecast update in  hr  min

Today's Turtles Reef sea temperature is
27.2°C
0.4° 

Turtles Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Turtles Reef surf forecast from 18 Oct 2026:

  • Best quality surf: Friday 23 Oct, 11PM (local time) - 2.5ft (0.7m), 16s period, SSW swell with offshore winds.
  • Most powerful swell: Sunday 25 Oct, 8AM (local time) - 2.5ft (0.7m), 18s period, SSW swell with 318 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 20 Oct, 5AM (local time) - 1.5ft (0.4m), 16s period with SW swell.

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 Tuesday (Oct 20) at 5AM. The primary swell is predicted to be 0.4m and 16s period. 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 0.7m 18s and forecast to arrive on Sunday (Oct 25) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Tuesday (Oct 20) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Tue 20th Oct)1.5ft (0.4m) 16s
Best Surf11PM (Fri 23rd Oct)2.5ft (0.7m) 16s
Most Powerful 8AM (Sun 25th Oct)2.5ft (0.7m) 18s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Sun afternoon, min 24°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Wed afternoon, min 23°C on Fri night). Winds decreasing (fresh winds from the E on Wed morning, calm by Fri morning).

Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
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
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
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
NW
14
0.5
NW
13
0.5
NW
12
0.5
NW
12
0.4
S
12
0.4
SW
16
0.4
SW
16
0.4
SW
15
0.4
SW
16
0.4
SW
15
0.4
SSW
15
0.4
SW
15
0.4
SSW
14
0.6
NW
11
0.4
SSW
13
0.6
NW
11
0.6
SSW
13
0.5
S
16
0.5
SSW
13
0.7
SSW
15
0.7
SSW
17
Wave Graph
Metric surfscale
Energy kJ
100
87
73
68
44
64
64
55
63
60
85
54
79
77
69
94
133
137
92
225
286
Wind (km/h)
30
ENE
35
ENE
30
ENE
30
ENE
35
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
E
30
ENE
15
ENE
10
E
10
E
10
ENE
0
E
5
NNE
5
NE
0
E
10
N
10
NNE
Wind State
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
glassy
glassy
off
glassy
cross-off
cross-off
High Tide
10:08AM0.55m
00:16AM0.23m
11:05AM0.55m
00:41AM0.29m
11:50AM0.55m
1:10AM0.36m
12:29PM0.54m
1:39AM0.45m
1:04PM0.51m
2:09AM0.53m
1:38PM0.48m
2:42AM0.61m
2:12PM0.43m
3:18AM0.69m
Low Tide
6:46PM0.16m
2:42AM0.23m
6:55PM0.14m
4:44AM0.24m
7:06PM0.12m
6:05AM0.23m
7:20PM0.10m
7:08AM0.22m
7:36PM0.08m
8:06AM0.20m
7:55PM0.05m
9:00AM0.19m
8:17PM0.03m
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
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6:28
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6:30
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6:30
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6:30
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6:31
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6:31
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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6:05
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6:05
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6:04
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6:02
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6:01
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6:01
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6:00
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 mm
—
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—
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—
—
—
—
—
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—
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Temp °C
26
27
25
26
27
25
26
26
25
26
27
25
26
27
25
26
27
25
26
26
25
Feels °C
23
24
22
24
24
23
23
23
23
23
25
25
27
29
26
29
29
27
29
27
26
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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