
Surf Forecasts:
Frankport surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 13 Sep, 8PM (local time) - 4.5ft (1.4m), 9s period, NW swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 2AM (local time) - 7ft (2.2m), 8s period, NNW swell with 590 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 8PM (local time) - 4.5ft (1.4m), 9s period with NW swell.
Best Forecast Surf Conditions for Frankport this week:
The surf forecast for Frankport over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 8PM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.6m and 13s. Another secondary swell of 0.5m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Frankport in the next 16 days are 2.2m 8s and forecast to arrive on Thursday (Sep 17) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 14s period and expected on Sunday (Sep 13) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 13th Sep) | 4.5ft (1.4m) 9s |
| Best Surf | 8PM (Sun 13th Sep) | 4.5ft (1.4m) 9s |
| Most Powerful | 2AM (Thu 17th Sep) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Frankport over the next 16 days.
The Lowdown
Alright, Rusty here.
Looking at Frankport for the next 16 days, it’s a tough stretch. The water’s about 55°F, which feels a bit colder than it should be for mid-September – about 2°F below normal. From Sunday, Sept 13th, right through to Saturday, Sept 19th, the surf is pretty much flat and messy. Swell heights run from around 2 ft to 6 ft, mostly from the WNW and NW, but the wind is cross or cross-onshore every single day. We’ve got moderate breezes kicking up chop and ripples, so the wave quality is just poor. The combined swell energy sits between 378 and 489 on the moderate side, but it’s not doing anything good.
Wednesday the 16th morning shows a 6 ft NW swell with a 7-second period, but the cross-shore wind ruins it again. Then on Friday the 18th, a tiny 2 ft SW swell shows up with a very long 20-second period – that’s some interesting energy (474) – but it’s still just marginal with light cross-onshore wind. That same tiny SW groundswell (with 18 to 20 second intervals) hangs around through the weekend, but the wind never cleans up.
By Monday the 21st and Tuesday the 22nd, we’ve got a 3 ft to 4 ft SW groundswell, periods dropping from 17 to 16 seconds. The energy jumps to 825 on Monday afternoon, but the wind is up to a fresh 19 mph cross-shore. It’s lumpy and not worth paddling for.
Now, the real highlight is Wednesday, September 23rd. Both morning and afternoon show a solid 5 ft – 5 ft WNW groundswell with a 12-second period. The combined swell energy is massive – 1150 and 1006 – that’s very strong. But here’s the kicker: the wind is still cross-onshore from the SSW. If that had turned offshore, this would be the day to circle. As it is, it’s the best we’ve got, but still marginal. The long 12-second period means the waves will have a clean shape, and with that much energy, it could be good at a point or reef, but Frankport is a beach and reef mix, so it might break a bit straight.
After that, Thursday the 24th and Friday the 25th drop back to 4 ft – 6 ft WNW swells with 10-11 second periods. The wind is still cross or light cross-onshore. By the weekend (the 26th and 27th), the swell jumps to 6 ft – 8 ft from the NNW, but with a poor 7-second period. The energy hits 1307 on Sunday afternoon, but the wind is a strong 16 mph cross-shore, creating a real chop. For beginners, any wave over 5 ft is getting too big, and over 8 ft is only for experts. Plus, the short period makes it all messy and close-outy – honestly, it looks better for kiting than surfing.
Monday the 28th wraps it up: a 5 ft NW swell, 13-second period, very strong energy (1387), but a fresh 19 mph N cross-shore wind ruins it. In the afternoon, it jumps to 10 ft from the NNW – expert-level size – but with the same messy wind and a short 7-second period.
So, the first week is a total loss for clean waves. The second week has all the energy you could ask for, but the wind just won’t play ball. The only real chance, and it’s a long shot, is Wednesday the 23rd. If that wind swings offshore while you’re out there, you might get the best session of the whole window.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Mon afternoon, min 12°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Wed afternoon, min 13°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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) | WNW 8 | WNW 9 | NW 8 | NW 8 | NNW 6 | NNW 6 | SW 17 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NW 8 | NW 8 | NNW 9 | SW 20 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 |
Wave Graph | |||||||||||||||||||||
277 | 339 | 232 | 233 | 181 | 187 | 230 | 204 | 229 | 302 | 462 | 590 | 353 | 289 | 338 | 239 | 303 | 303 | 215 | 375 | 516 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross-off |
High Tide | 1:46PM2.85m | 2:28AM2.45m | 2:17PM2.80m | 3:18AM2.28m | 2:49PM2.73m | 4:12AM2.12m | 3:23PM2.62m | 5:17AM1.99m | 4:04PM2.51m | 6:43AM1.91m | 4:55PM2.41m | 8:21AM1.93m | 6:03PM2.34m | ||||||||
Low Tide | 8:16PM0.56m | 8:08AM1.06m | 8:59PM0.58m | 8:40AM1.26m | 9:45PM0.64m | 9:14AM1.44m | 10:37PM0.73m | 9:50AM1.60m | 11:37PM0.82m | 10:38AM1.73m | 00:49AM0.87m | 11:57AM1.81m | 2:00AM0.85m | ||||||||
6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | |
— | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | — | 7:20 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 15 | 20 | 21 | 15 | 19 | 20 | 15 | 20 | 23 | 18 | 18 | 18 | 14 | 21 | 21 | 17 | 17 | 18 | 14 |
Feels °C | 14 | 15 | 13 | 16 | 16 | 11 | 14 | 15 | 12 | 17 | 19 | 16 | 17 | 17 | 14 | 20 | 19 | 16 | 16 | 17 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 9 | NW 8 | SSW 13 | SSW 13 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 18 | NW 8 | NW 8 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NW 9 | NNW 8 | SW 18 |
277 | 339 | 232 | 116 | 114 | 147 | 188 | 124 | 86 | 88 | 121 | 204 | 353 | 289 | 338 | 235 | 179 | 184 | 174 | 114 | 516 | |
Swell 2 Height (m) Direction Period (s) | NW 9 | SW 13 | SW 13 | SW 18 | SW 17 | SW 13 | SW 12 | NW 12 | WNW 12 | NW 11 | NW 11 | SW 24 | SW 21 | SSW 17 | S 16 | SW 20 | SW 19 | SW 19 | SW 18 | SW 18 | NW 7 |
101 | 183 | 140 | 111 | 106 | 78 | 38 | 37 | 56 | 32 | 30 | 22 | 160 | 93 | 132 | 239 | 303 | 303 | 215 | 375 | 56 | |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 19 | SW 19 | WNW 15 | WNW 15 | WNW 13 | NW 13 | SW 12 | SW 12 | SSW 19 | S 19 | SW 11 | SW 14 | SW 14 | SW 21 | SSW 15 | S 15 | SSW 15 | SSW 14 | SSW 13 | S 13 |
191 | 59 | 127 | 84 | 21 | 69 | 44 | 37 | 23 | 125 | 66 | 5 | 72 | 72 | 162 | 126 | 112 | 72 | 67 | 70 | 90 | |
Wind waves Height (m) Direction Period (s) | SSE 3 | — | — | NW 8 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | — | — | — | — | — | — | — | — | — |
1 | — | — | 233 | 181 | 187 | 230 | 204 | 229 | 302 | 462 | 590 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 89 | 29 | 29 | 444 | 531 | 29 | 411 | 287 | 29 | 161 | 76 | 76 | 89 | 89 | 29 | 29 | 91 | 29 | 89 | 29 | 29 |
Best forecast wave conditions in South Oregon | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Frankport Surf forecast
The above surf forecast table for Frankport provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Frankport can be found by selecting the local surf guide option on the grey menu. Our Frankport 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 (Frankport) 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 Frankport 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.
Frankport is 89 km (55 miles) from Coos Bay. If you plan a vacation in South Oregon, look for hotels and other accommodation in Coos Bay. Coos Bay has rooms for a wide range of budgets as well as car hire and transport links.










