Turtle Bay surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 am Tuesday 16 Sep 2025 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
26.8° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Turtle Bay this week:

The most powerful waves expected at Turtle Bay in the next 12 days are 1.6m 7s and forecast to arrive on Saturday (Sep 20) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 8s period and expected on Sunday (Sep 21) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Sat 20th Sep)5ft (1.6m) 7s

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 4mm), mostly falling on Tue night. Warm (max 26°C on Tue afternoon, min 25°C on Tue morning). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Fri night. Warm (max 26°C on Fri morning, min 25°C on Fri morning). Mainly fresh winds.

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.5
N
0.4
N
0.4
N
0.3
NNW
0.4
NNW
0.7
N
0.7
N
0.7
N
0.5
N
0.7
N
0.6
N
1.6
NE
0.4
NW
0.4
NW
0.5
NW
0.5
NW
0.5
NW
0.4
NW
0.5
NW
0.5
NW
0.5
NW
Period(s) (?)988898881110107131312111110121111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)37212214266154555610672248405867585535686055
Wind
(km/h)
30
ENE
30
ENE
30
E
25
E
30
E
30
E
30
E
30
E
30
ENE
25
E
25
ENE
25
ENE
30
E
25
E
25
E
30
E
30
E
30
E
30
E
30
ENE
30
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
crosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
12:14PM
0.73
11:38PM
0.31
12:49PM
0.73
12:28AM
0.38
1:17PM
0.72
1:08AM
0.44
1:41PM
0.70
1:44AM
0.50
2:01PM
0.66
2:19AM
0.55
2:19PM
0.62
2:53AM
0.59
2:33PM
0.57
3:27AM
0.62
Low Tide
/ height (m)
8:02PM
0.27
5:07AM
0.15
7:58PM
0.25
6:03AM
0.15
8:04PM
0.23
6:49AM
0.15
8:13PM
0.21
7:30AM
0.17
8:25PM
0.19
8:08AM
0.21
8:38PM
0.17
8:46AM
0.25
8:52PM
0.14
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Sunrise6:18--6:18--6:18--6:18--6:20--6:20--6:20--
Sunset-6:34--6:32--6:31--6:30--6:30--6:29--6:28-
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
clear
part cloud
clear
clear
thunderstorm
clear
part cloud
clear
Rain (mm)
--31-------1-----4---
Temp. °C252625252625262625262625262625262625252625
Feels °C (?)232423242523252524252624252525252523242524
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Oahu

  1. weather stationWind Update The wind is still cross-off at Turtle Bay (light winds from the E at Wheeler Air Force Base/oahu Airport 27 km from Turtle Bay). 0.3m 11s groundswell from the W to make surfable waves.

    Turtle Bay
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27 km away, 2 h 11 min ago

17 km/h
E
0.0
26.8
Air / Water (°C)
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Turtle Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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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