Surf Forecasts:
Tunnels surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 8AM (local time) - 2ft (0.6m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 8AM (local time) - 2.5ft (0.8m), 17s period, SSW swell with 368 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 8AM (local time) - 2ft (0.6m), 18s period with SSW swell.
Best Forecast Surf Conditions for Tunnels this week:
The surf forecast for Tunnels over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 8AM. The primary swell is predicted to be 0.6m and 18s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tunnels in the next 16 days are 0.8m 17s and forecast to arrive on Friday (Aug 21) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Sunday (Aug 23) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 20th Aug) | 2ft (0.6m) 18s |
| Best Surf | 8AM (Thu 20th Aug) | 2ft (0.6m) 18s |
| Most Powerful | 8AM (Fri 21st Aug) | 2.5ft (0.8m) 17s |
Table - best surf conditions forecast for Tunnels over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it.
Alright, listen up. We're looking at a pretty bleak stretch ahead for Tunnels. The water temp is sitting about average for this time of year, so no surprises there. But the surf? Man, it's a ghost town for most of the 16 days. We've got a long gap coming up with no real action on offer.
The only window that even looks like it might be worth a paddle is kicking off on Thursday, August 20th. The swell is coming in from the SW at 2 ft, with a period of 17 to 18 seconds – that's a proper long-period groundswell, which will have some grunt behind it. The combined energy is moderate, hitting 249 (moderate wave energy). The wind is light and cross-off, so the waves should be clean. It's a fairly consistent break, so there's a chance.
Then, Friday, August 21st is the standout. The swell is a touch better at 2 ft from the SW, with a 17-second period and a combined energy of 348 (moderate wave energy). The real kicker is the wind – it's glassy in the morning, and light cross-off in the afternoon. That's a major positive, meaning the surf will be clean and smooth. Tunnels is exposed to the swell, and the optimum direction is SW, so this is a good match. Expect some crowds, as it's often busy there.
After that, things fall apart. From Saturday, August 22nd, right through to the end of the outlook, the wind is just too strong. We're talking 18 to 31 mph winds, mostly cross-off. While the waves themselves stay clean in the forecast, the wind strength is a deal-breaker. The swell energy will be moderate to strong (values like 385, 509, 391), but with that wind, it's going to be a battle. For the experienced guys, the morning of August 27th has the strongest energy at 509 (strong wave energy), but with a 15 mph wind, it's not going to be a fun session. By the end of the first week and into the second, the surf is just not recommended.
There's a long gap from August 22nd through to September 3rd with no good surf. The wind is just too gnarly.
So, bottom line: if you have to get wet, lock in Thursday, August 20th or Friday, August 21st. Friday morning, with the glassy conditions and that long-period SW groundswell, is your best bet. The rest? Honestly, this setup might be more interesting for the kite surfers than us paddle surfers with that constant strong wind.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Mon afternoon. Warm (max 27°C on Sat afternoon, min 25°C on Sat night). Winds decreasing (near gales from the NE on Sun night, moderate winds from the ENE by Mon night). | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | S 12 | S 12 | SW 16 | SW 18 | SSW 17 | SW 16 | SW 17 | SW 16 | SSW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 14 | SW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph | |||||||||||||||||||||
69 | 71 | 129 | 249 | 200 | 278 | 295 | 201 | 322 | 261 | 255 | 152 | 144 | 102 | 100 | 166 | 156 | 129 | 146 | 196 | 167 | |
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 | 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 | 9:38AM0.56m | 11:09AM0.58m | 12:10PM0.62m | 12:53PM0.66m | 11:49PM0.25m | 1:28PM0.69m | 00:44AM0.28m | 1:58PM0.72m | 1:24AM0.32m | 2:25PM0.73m | 2:01AM0.36m | ||||||||||
Low Tide | 1:26AM0.15m | 2:37AM0.16m | 4:10AM0.16m | 9:14PM0.24m | 5:23AM0.13m | 9:06PM0.23m | 6:15AM0.10m | 9:12PM0.21m | 6:59AM0.09m | 9:23PM0.20m | |||||||||||
6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 8 | 1 | 1 | — |
Temp °C | 26 | 26 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 26 | 27 | 25 | 26 | 26 | 26 | 25 | 25 | 26 | 26 | 26 | 26 |
Feels °C | 27 | 27 | 24 | 27 | 28 | 28 | 30 | 30 | 28 | 26 | 26 | 23 | 23 | 22 | 21 | 22 | 23 | 27 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | ENE 7 | ENE 6 | SW 16 | SSW 15 | SSW 15 | SW 14 | SW 14 | SSW 14 | SSW 13 | SSE 7 | S 6 | SSW 16 | SSW 15 |
30 | 39 | 40 | 43 | 54 | 69 | 67 | 77 | 93 | 78 | 255 | 152 | 144 | 102 | 100 | 166 | 156 | 55 | 31 | 196 | 167 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | SW 18 | SSW 17 | SW 16 | SW 17 | SW 16 | SSW 16 | SW 16 | W 11 | S 14 | S 13 | SSW 15 | SSW 15 | SSE 12 | SSE 12 | SSW 13 | SSW 12 | SSW 12 | SSW 12 |
49 | 48 | 42 | 249 | 200 | 278 | 295 | 201 | 322 | 261 | 58 | 103 | 90 | 76 | 71 | 51 | 46 | 129 | 117 | 81 | 81 | |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | SW 16 | E 7 | S 11 | SSE 15 | W 10 | W 11 | W 10 | W 10 | SSE 12 | WNW 10 | WNW 11 | SSE 13 | SSE 13 | WNW 11 | SE 8 | SSW 17 | SSW 16 | S 6 | S 12 |
69 | 71 | 129 | 27 | 21 | 42 | 51 | 85 | 50 | 52 | 50 | 34 | 47 | 35 | 57 | 12 | 17 | 93 | 146 | 17 | 71 | |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | NE 7 | — | — | — | — | NNW 3 | — | — | ENE 6 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 |
41 | 71 | 99 | — | — | — | — | 1 | — | — | 310 | 186 | 382 | 549 | 912 | 856 | 432 | 336 | 238 | 214 | 136 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 57 | 57 | 27 | 14 | 14 | 0 | 0 | 0 | 2 | 68 | 68 | 97 | 210 | 209 | 99 | 90 | 68 | 68 | 69 | 4 | 68 |
Best forecast wave conditions in Molokai | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Tunnels Surf forecast
The above surf forecast table for Tunnels provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tunnels can be found by selecting the local surf guide option on the grey menu. Our Tunnels 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 (Tunnels) 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 Tunnels 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.
Are you planning a vacation in Molokai? If you are looking for accommodation near Tunnels, camping, hotels and condos and appartments in Molokai, consider staying in Kaunakakai - Molokai which is 20 km (12 miles) away. Other places in and around Molokai where you can find information about places to rent, and car hire include Lanai - Lanai which is 53 km (33 miles) away, Kailua, Honolulu and Kane'ohe.











