Surf Forecasts:
Spencer Beach Park surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 16 Aug, 5PM (local time) - 1.5ft (0.4m), 12s period, WNW swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 8AM (local time) - 1.5ft (0.4m), 17s period, SW swell with 73 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 5PM (local time) - 1.5ft (0.4m), 12s period with WNW swell.
Best Forecast Surf Conditions for Spencer Beach Park this week:
The surf forecast for Spencer Beach Park over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 5PM. The primary swell is predicted to be 0.4m and 12s period with a secondary swell of 0.5m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Spencer Beach Park in the next 16 days are 0.4m 17s and forecast to arrive on Friday (Aug 21) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 8s period and expected on Sunday (Aug 16) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 16th Aug) | 1.5ft (0.4m) 12s |
| Best Surf | 5PM (Sun 16th Aug) | 1.5ft (0.4m) 12s |
| Most Powerful | 8AM (Fri 21st Aug) | 1.5ft (0.4m) 17s |
Table - best surf conditions forecast for Spencer Beach Park over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s on offer for the next couple of weeks.
Honestly, the surf forecast for Spencer Beach Park is a bit of a flat spell to start. We’ve got a tiny bit of swell showing, but nothing worth getting wet for just yet. The first few days are dominated by weak energy (48 to 67) and small waves around 1ft. The period is decent – 13 to 13 seconds – so there’s some groundswell character, but the height is just too low to make it fun. Sunday afternoon the 16th turns glassy, but with only 1ft, it’s barely a ripple.
We do get a few moments where the wind goes glassy or clean, particularly on Tuesday morning the 18th and Wednesday morning the 19th, but again, the swell is tiny (1ft) and the energy is weak (25 to 73). It’s surfable if you’re desperate, but it’s really ordinary.
The first real glimmer of hope comes on Wednesday the 26th of August. The swell bumps up to 2ft from the WNW with a 12-second period, and combined wave energy climbs into the moderate range (111 to 114). That’s not huge, but for this break it’s a noticeable step up. The wind is light and variable, going glassy Wednesday afternoon, so conditions should be clean. This is likely the best window across the whole 16-day forecast – still small, but the cleanest and most energy we see.
After that, it drops back down to 1ft for the rest of the month, with energy staying weak (39 to 77). The wind stays mostly cross-off or light, keeping things clean, but the swell just isn’t there to make it worthwhile. The last day of the month, Monday the 31st, shows a late push with 1ft at 15 seconds from the WNW and energy of 123 – that’s moderate energy and a long period, which could shape up nicely if it holds, but at this range it’s less certain.
So overall, if you’re hanging for a paddle, aim for Wednesday the 26th. It’s the standout, but keep expectations low – this is a small spell.
Rusty.
Short Range ForecastHeavy rain (total 34mm), heaviest during Sat night. Warm (max 29°C on Sun morning, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Fri afternoon. Warm (max 28°C on Thu morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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) | SSW 8 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 13 | WNW 12 | WNW 12 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||
24 | 32 | 49 | 27 | 25 | 24 | 25 | 25 | 25 | 33 | 48 | 28 | 41 | 49 | 47 | 69 | 69 | 39 | 64 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | glassy | glassy | cross-off | cross-off | off | glassy | cross-off | glassy | glassy | glassy | glassy | cross-on | glassy | glassy | glassy | on | glassy |
High Tide | 6:49AM0.51m | 6:24PM0.51m | 7:40AM0.53m | 6:51PM0.41m | 8:37AM0.54m | 7:15PM0.33m | 9:44AM0.55m | 7:33PM0.25m | 10:59AM0.57m | 12:08PM0.59m | 11:45PM0.18m | ||||||||
Low Tide | 00:29AM0.00m | 12:35PM0.16m | 00:54AM0.02m | 1:40PM0.21m | 1:21AM0.04m | 3:09PM0.25m | 1:51AM0.05m | 5:41PM0.25m | 2:31AM0.07m | 3:32AM0.09m | 8:34PM0.15m | ||||||||
— | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
6:52 | — | 6:51 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | |
mm | 26 | 1 | 6 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — |
Temp °C | 28 | 29 | 28 | 28 | 27 | 28 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 29 | 33 | 31 | 33 | 32 | 31 | 28 | 30 | 31 | 29 | 31 | 31 | 30 | 31 | 32 | 32 | 31 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | NNE 8 | NE 8 | NE 8 | NE 7 | NE 6 | NE 6 | WNW 11 | NNE 5 | NE 7 | NNE 4 | WNW 12 | NNE 6 | NNE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 |
133 | 98 | 77 | 65 | 45 | 49 | 25 | 17 | 14 | 8 | 48 | 23 | 23 | 16 | 17 | 33 | 33 | 33 | 31 | |
Swell 2 Height (m) Direction Period (s) | ENE 9 | SSW 6 | SW 6 | WNW 12 | WNW 11 | WNW 11 | ENE 8 | WNW 11 | WNW 11 | WNW 13 | SSW 16 | WNW 12 | WNW 11 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 |
50 | 16 | 18 | 27 | 25 | 24 | 6 | 25 | 25 | 33 | 25 | 28 | 25 | 49 | 47 | 69 | 69 | 39 | 64 | |
Swell 3 Height (m) Direction Period (s) | SSW 8 | WNW 13 | WNW 12 | SW 5 | WSW 5 | S 14 | S 13 | ENE 8 | W 13 | NE 7 | NNE 7 | SSW 16 | SW 16 | WNW 11 | WNW 11 | W 11 | WSW 8 | W 10 | W 10 |
24 | 32 | 49 | 4 | 2 | 16 | 14 | 6 | 14 | 7 | 5 | 25 | 41 | 24 | 23 | 9 | 7 | 8 | 9 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NNE 5 | — | NNE 5 | — | NNE 4 | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | 21 | — | 9 | — | 7 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 34 | 27 | 0 | 51 | 92 | 34 | 62 | 88 | 88 | 62 | 0 | 90 | 9 | 4 | 0 | 0 | 0 | 84 | 0 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Spencer Beach Park Surf forecast
The above surf forecast table for Spencer Beach Park provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Spencer Beach Park can be found by selecting the local surf guide option on the grey menu. Our Spencer Beach Park 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 (Spencer Beach Park) 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 Spencer Beach Park 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.
Spencer Beach Park is 84 km (52 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.











