Turtle Bay surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 pm Wednesday 14 Jan 2026 HST
Forecast update in hr  min  s Forecast update imminent
Turtle Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Turtle Bay sea temperature is
25.0° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Turtle Bay this week:

The surf forecast for Turtle Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jan 19) at 5AM. The primary swell is predicted to be 1.9m and 14s period with a secondary swell of 0.6m and 12s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Turtle Bay in the next 12 days are 4.5m 15s and forecast to arrive on Thursday (Jan 15) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Sunday (Jan 18) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Mon 19th Jan)6ft (1.9m) 14s
Best Surf 5AM (Mon 19th Jan)6ft (1.9m) 14s
Most Powerful 8PM (Thu 15th Jan)15ft (4.5m) 15s

Table - best surf conditions forecast for Turtle Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 8mm), mostly falling on Wed night. Warm (max 24°C on Wed night, min 20°C on Thu afternoon). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Mon afternoon, min 22°C on Sat night). Winds decreasing (fresh winds from the E on Sat night, calm by Tue morning).

Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wed
21
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
3
2
1
2
2
0
3
3
2
3
2
2
3
4
4
4
4
Swell
Height Map
Wave Height (m) & direction (?)
2.1
NW
3.5
NW
4.5
NW
4
NW
3
NNW
3.5
NNW
2.4
N
1.9
N
1.7
N
1.4
N
2.5
NW
2.5
NW
2.1
NW
1.6
NW
1.3
NW
0.8
NW
1.8
NW
1.8
NW
1.7
NW
2.3
NW
2.2
NW
Period(s) (?)121216151413131212111816141413181615141615
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1255363396637527362540131909101381449337053373183887260939217071421109926102293
Wind
(km/h)
25
NW
35
NNW
30
N
35
NNE
30
ENE
30
ENE
30
ENE
35
E
30
E
35
E
35
E
30
E
25
ESE
15
ESE
20
E
5
WSW
5
N
5
N
5
SSE
5
S
10
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononcross-
on
crosscrosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
on
glassglasscross-
off
cross-
off
High Tide
/ height (m)
1:59AM
0.74
2:27AM
0.76
12:04PM
0.33
2:55AM
0.79
12:53PM
0.35
3:23AM
0.80
1:36PM
0.36
3:48AM
0.80
2:19PM
0.37
4:12AM
0.78
3:06PM
0.39
4:34AM
0.75
3:58PM
0.40
Low Tide
/ height (m)
6:17PM
0.06
10:13AM
0.33
6:55PM
0.03
10:19AM
0.32
7:30PM
0.01
10:33AM
0.32
8:03PM
0.01
10:49AM
0.31
8:35PM
0.04
11:08AM
0.29
9:06PM
0.08
11:28AM
0.27
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wed
21
Sunrise-7:11--7:11--7:11--7:11--7:11--7:11--7:11-
Sunset--6:09--6:09--6:10--6:12--6:12--6:13--6:14
mod rain
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
light rain
Rain (mm)
8-------------------1
Temp. °C242221202021212222222223232324232323232425
Feels °C (?)221615141416161617161719192121222424242427
  • 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 Turtle Bay Surf forecast

The above surf forecast table for Turtle Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Turtle Bay can be found by selecting the local surf guide option on the grey menu. Our Turtle Bay 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 (Turtle Bay) 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 Turtle Bay 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.

Turtle Bay is 23 km (14 miles) from Wahiawa. If you plan a vacation in Oahu, look for hotels and other accommodation in Wahiawa. Wahiawa has rooms for a wide range of budgets as well as car hire and transport links.

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