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Bellows Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Bellows surfForecast / HAW – Oahu / USA
12 Day Weather and Surf, issued 7 pm Thursday 18 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Bellows surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bellows sea temperature is
25.5° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Bellows this week:
The surf forecast for Bellows over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 19) at 2AM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 0.6m and 8s. Another secondary swell of 0.4m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Bellows in the next 12 days are 1.9m 13s and forecast to arrive on Saturday (Dec 20) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 9s period and expected on Tuesday (Dec 23) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 19th Dec) | 5.5ft (1.7m) 12s |
| Best Surf | 11AM (Sat 20th Dec) | 5ft (1.6m) 11s |
| Most Powerful | 5PM (Sat 20th Dec) | 6ft (1.9m) 13s |
Table - best surf conditions forecast for Bellows over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Moderate rain (total 11mm), heaviest on Fri night. Warm (max 26°C on Fri afternoon, min 24°C on Thu night). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Mon night. Warm (max 24°C on Sun night, min 23°C on Mon night). Mainly strong winds. | |||||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 11 | 11 | 11 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 9 | 7 | 9 | 8 | 11 | 13 | 12 | 11 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 861 | 805 | 733 | 721 | 617 | 1233 | 900 | 664 | 544 | 465 | 514 | 410 | 502 | 308 | 254 | 422 | 439 | 302 | 389 | 390 | 363 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross- off | cross- off | glass | cross- on | cross- on | on | cross- on | on | on | on | on | on | on | on | on | on | on | on | on | |
High Tide / height (m) | 3:16AM 0.65 | 12:39PM 0.29 | 3:50AM 0.65 | 1:14PM 0.28 | 4:25AM 0.65 | 1:49PM 0.28 | 5:00AM 0.64 | 2:26PM 0.27 | 5:33AM 0.63 | 3:12PM 0.26 | 6:03AM 0.61 | 4:17PM 0.24 | 6:30AM 0.58 | 5:55PM 0.23 | ||||||||
Low Tide / height (m) | 9:58AM 0.23 | 7:42PM -0.09 | 10:35AM 0.22 | 8:16PM -0.09 | 11:16AM 0.22 | 8:51PM -0.08 | 11:59AM 0.22 | 9:25PM -0.06 | 12:41PM 0.20 | 9:58PM -0.03 | 1:20PM 0.18 | 10:32PM 0.03 | 1:57PM 0.15 | |||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | ||||||||||||||||
| Sunrise | - | 7:01 | - | - | 7:03 | - | - | 7:03 | - | - | 7:03 | - | - | 7:03 | - | - | 7:05 | - | - | 7:05 | - | |
| Sunset | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:53 | - | - | 5:53 | - | - | 5:54 | - | - | 5:55 | |
 |  |  |  |  | | |  | | | | | |  | |  | | | | | | ||
Rain (mm) | 1 | - | 3 | 4 | - | 2 | 1 | - | - | 1 | - | - | 6 | 1 | - | - | - | - | - | - | - | |
| Temp. °C | 24 | 25 | 26 | 25 | 24 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | |
| Feels °C (?) | 26 | 27 | 27 | 27 | 27 | 28 | 25 | 25 | 23 | 23 | 22 | 23 | 23 | 20 | 19 | 19 | 19 | 19 | 19 | 21 | 23 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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 Bellows 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.
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Information about the Bellows Surf forecast
The above surf forecast table for Bellows provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Bellows can be found by selecting the local surf guide option on the grey menu. Our Bellows 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 (Bellows) 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 Bellows 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.
Bellows is 6 km (4 miles) from Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.
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