
Surf Forecasts:
Reef Runway (Hickam Harbor) surf forecast from 5 Aug 2026:
- Best quality surf: Thursday 6 Aug, 2AM (local time) - 1.5ft (0.5m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 12 Aug, 2AM (local time) - 2.5ft (0.8m), 20s period, S swell with 485 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 2AM (local time) - 1.5ft (0.5m), 15s period with SW swell.
Best Forecast Surf Conditions for Reef Runway (Hickam Harbor) this week:
The surf forecast for Reef Runway (Hickam Harbor) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 06) at 2AM. The primary swell is predicted to be 0.5m and 15s period with a secondary swell of 0.4m and 12s. 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 16 days are 0.8m 20s and forecast to arrive on Wednesday (Aug 12) 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 1.6m 7s period and expected on Sunday (Aug 09) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 6th Aug) | 1.5ft (0.5m) 15s |
| Best Surf | 2AM (Thu 6th Aug) | 1.5ft (0.5m) 15s |
| Most Powerful | 2AM (Wed 12th Aug) | 2.5ft (0.8m) 20s |
Table - best surf conditions forecast for Reef Runway (Hickam Harbor) over the next 16 days.
Short Range ForecastMostly dry. Warm (max 27°C on Wed morning, min 24°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 25°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSE 13 | SSW 15 | SW 15 | SSW 14 | SW 14 | SSW 14 | SSW 14 | SW 20 | SSW 14 | SSW 18 | SW 18 | SSW 17 | SW 16 | S 18 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | S 20 |
Wave Graph | |||||||||||||||||||||
56 | 88 | 107 | 81 | 102 | 138 | 76 | 99 | 148 | 221 | 154 | 202 | 130 | 156 | 288 | 184 | 234 | 246 | 284 | 273 | 485 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | 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 |
High Tide | 10:23AM0.54m | 8:25PM0.28m | 11:33AM0.61m | 9:49PM0.21m | 12:37PM0.67m | 11:45PM0.17m | 1:33PM0.73m | 1:09AM0.18m | 2:22PM0.77m | 2:12AM0.20m | 3:08PM0.79m | 3:04AM0.24m | 3:49PM0.78m | 3:53AM0.29m | |||||||
Low Tide | 5:16PM0.22m | 3:15AM0.00m | 7:29PM0.17m | 4:14AM-0.01m | 8:28PM0.12m | 5:20AM-0.02m | 9:06PM0.08m | 6:26AM-0.04m | 9:40PM0.05m | 7:26AM-0.06m | 10:12PM0.03m | 8:21AM-0.06m | 10:43PM0.02m | ||||||||
6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 26 | 27 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 25 | 26 | 25 | 27 | 27 | 26 | 27 | 28 | 26 |
Feels °C | 27 | 26 | 27 | 28 | 26 | 25 | 25 | 25 | 25 | 24 | 25 | 23 | 24 | 25 | 24 | 27 | 26 | 27 | 25 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 9 | SW 15 | ENE 6 | SW 14 | SSW 14 | E 5 | SW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 16 | SSW 15 | SSW 15 | E 7 | SSW 15 | SSW 14 | SSW 14 |
160 | 110 | 107 | 25 | 102 | 138 | 29 | 91 | 127 | 175 | 120 | 137 | 96 | 85 | 288 | 184 | 234 | 155 | 284 | 273 | 243 | |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SSW 15 | S 12 | ENE 8 | ENE 8 | SE 7 | SSW 14 | SSE 11 | SSW 19 | SSW 18 | SW 18 | SSW 17 | SW 16 | S 18 | SSW 12 | SSW 12 | SSE 9 | SSW 15 | SSE 9 | SSE 9 | S 20 |
38 | 88 | 45 | 38 | 26 | 13 | 76 | 38 | 148 | 221 | 154 | 202 | 130 | 156 | 56 | 81 | 47 | 246 | 32 | 30 | 485 | |
Swell 3 Height (m) Direction Period (s) | SSE 13 | SSW 11 | SSW 10 | SSW 14 | SSE 11 | S 11 | NE 7 | SW 20 | S 11 | SE 8 | S 10 | SSE 10 | SSW 18 | SW 16 | SSE 10 | SE 8 | SSW 12 | SSE 9 | W 10 | S 21 | SE 9 |
56 | 46 | 18 | 81 | 24 | 21 | 14 | 99 | 21 | 10 | 17 | 19 | 102 | 127 | 35 | 16 | 45 | 46 | 18 | 141 | 20 | |
Wind waves Height (m) Direction Period (s) | — | ENE 9 | ENE 9 | ENE 6 | E 6 | ENE 8 | ENE 7 | ENE 6 | E 6 | E 7 | E 7 | E 7 | E 7 | ENE 7 | E 7 | E 7 | ENE 7 | ENE 7 | E 7 | E 7 | E 7 |
— | 203 | 111 | 62 | 35 | 58 | 48 | 33 | 69 | 126 | 145 | 161 | 186 | 292 | 246 | 183 | 199 | 276 | 152 | 150 | 146 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 9 | 0 | 18 | 18 | 9 | 18 | 9 | 18 | 26 | 26 | 20 | 18 | 18 | 18 | 9 | 18 | 9 | 18 | 19 | 18 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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.











