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Reef Runway (Hickam Harbor) Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Reef Runway (Hickam Harbor) surfForecast / HAW – Oahu / USA
12 Day Weather and Surf, issued 7 am Thursday 18 Sep 2025 HST
Best Forecast Surf Conditions for Reef Runway (Hickam Harbor) this week:
The surf forecast for Reef Runway (Hickam Harbor) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 22) at 2AM. The primary swell is predicted to be 0.9m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Reef Runway (Hickam Harbor) in the next 12 days are 1.1m 15s and forecast to arrive on Sunday (Sep 21) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 7s period and expected on Saturday (Sep 20) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 22nd Sep) | 3ft (0.9m) 13s |
| Best Surf | 2AM (Mon 22nd Sep) | 3ft (0.9m) 13s |
| Most Powerful | 2AM (Sun 21st Sep) | 3.5ft (1.1m) 15s |
Table - best surf conditions forecast for Reef Runway (Hickam Harbor) over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 27°C on Thu afternoon, min 25°C on Thu morning). Mainly fresh winds. | Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Sun afternoon, min 25°C on Sun morning). Mainly fresh winds. | ||||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 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) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 13 | 13 | 18 | 17 | 16 | 15 | 15 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 14 | 14 | 11 | 11 | 12 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 133 | 78 | 118 | 120 | 176 | 304 | 452 | 408 | 485 | 384 | 257 | 249 | 183 | 86 | 117 | 79 | 71 | 73 | 41 | 39 | 73 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 2:28PM 0.66 | 2:54AM 0.37 | 3:02PM 0.63 | 3:29AM 0.43 | 3:31PM 0.59 | 4:02AM 0.48 | 3:58PM 0.55 | 4:35AM 0.53 | 4:25PM 0.49 | 5:09AM 0.57 | 4:50PM 0.43 | 5:44AM 0.59 | 5:16PM 0.36 | ||||||||
Low Tide / height (m) | 9:10PM 0.04 | 8:14AM 0.05 | 9:31PM 0.03 | 8:59AM 0.06 | 9:50PM 0.03 | 9:43AM 0.08 | 10:08PM 0.03 | 10:27AM 0.10 | 10:26PM 0.03 | 11:13AM 0.12 | 10:45PM 0.04 | 12:03PM 0.15 | 11:04PM 0.05 | ||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||
| Sunrise | 6:18 | - | - | 6:18 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - |
| Sunset | - | 6:31 | - | - | 6:30 | - | - | 6:30 | - | - | 6:29 | - | - | 6:28 | - | - | 6:27 | - | - | 6:25 | - |
 | |  | | |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 26 | 27 | 25 | 27 | 27 | 26 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 |
| Feels °C (?) | 24 | 25 | 24 | 25 | 25 | 26 | 24 | 25 | 24 | 25 | 26 | 25 | 23 | 25 | 24 | 24 | 24 | 23 | 24 | 25 | 25 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Oahu
The wind is still cross-off at Reef Runway (Hickam Harbor) (light winds from the NE at Honolulu Airport 2 km from Reef Runway (Hickam Harbor)). 0.8m 7s swell from the SE with a 0.3m 11s groundswell from the SSW and a 0.2m 14s groundswell, also from the SSW. 3 swells combining to make bigger set waves.
1 h 46 min ago
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Reef Runway (Hickam Harbor) 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 Reef Runway (Hickam Harbor) Surf forecast
The above surf forecast table for Reef Runway (Hickam Harbor) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Reef Runway (Hickam Harbor) can be found by selecting the local surf guide option on the grey menu. Our Reef Runway (Hickam Harbor) 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 (Reef Runway (Hickam Harbor)) 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 Reef Runway (Hickam Harbor) 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.
Reef Runway is 6 km (4 miles) from 'Ewa Beach. If you plan a vacation in Oahu, look for hotels and other accommodation in 'Ewa Beach. 'Ewa Beach has rooms for a wide range of budgets as well as car hire and transport links.
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