Surf Forecasts:
Harbor Entrance at Eureka surf forecast from 15 Jul 2026:
- Best quality surf: Friday 17 Jul, 8AM (local time) - 3ft (0.9m), 17s period, WNW swell with glassy winds.
- Most powerful swell: Friday 17 Jul, 2PM (local time) - 3.5ft (1.0m), 17s period, WNW swell with 550 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 2AM (local time) - 2ft (0.6m), 18s period with SW swell.
Best Forecast Surf Conditions for Harbor Entrance at Eureka this week:
The surf forecast for Harbor Entrance at Eureka over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 15) at 2AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.8m and 9s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Harbor Entrance at Eureka in the next 16 days are 1.0m 17s and forecast to arrive on Friday (Jul 17) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 14s period and expected on Tuesday (Jul 21) at 11PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 15th Jul) | 2ft (0.6m) 18s |
| Best Surf | 8AM (Fri 17th Jul) | 3ft (0.9m) 17s |
| Most Powerful | 2PM (Fri 17th Jul) | 3.5ft (1.0m) 17s |
Table - best surf conditions forecast for Harbor Entrance at Eureka over the next 16 days.
The Lowdown
Alright, folks. Rusty here again, looking at the charts for the Harbor Entrance at Eureka. I’ll be straight with you – it’s a quiet spell. Nothing on offer right now, and we’re looking at a dry run for the first few days. The first real chance comes on Friday, July 17th, but there’s a long gap before that.
The water is sitting at 54°, which is a bit colder than normal for this time of year – that chill is no joke.
Friday, July 17th brings a little pulse. The swell is from the WNW at about 3ft to 3ft, with a period of 16-17 seconds. That’s long-period groundswell, so there’s good energy (combined energy of 1100-1126) but it’s a bit straight for a beach/harbor-mouth setup. The wind is light onshore or cross-on, so it’s going to be a bit choppy and lumpy. It’s marginal, but it’s the best we’ve got in the week.
Saturday, July 18th sees a jump in size with a NW swell hitting 7ft, but the period drops to a short 8 seconds. That’s windswell, and it’s going to be a mess. The wind is cross-on, so it’s choppy and not packing much punch. At 7ft, this is expert territory only – not for the faint of heart or the beginners.
Sunday, July 19th through Monday, July 20th stays in the marginal zone. The swell drops back to 5ft to 5ft, still short-period, but the wind lightens up, which helps a little. It’s not clean, but it looks a bit more manageable for a paddle if you’re keen.
The rest of the outlook from Tuesday, July 21st onward is mostly poor. There’s a tease on Saturday, July 25th with a long-period SW groundswell of 3ft and 21 seconds, but the wind is cross-on and the combined energy (837) is just moderate. It’s a whisper of a wave, and the harbor mouth isn’t the best spot for that kind of long-period stuff.
Honestly, if you’re looking to get wet, the best bet is the Friday the 17th or Saturday the 18th, but temper your expectations. It’s a tough period for the Harbor Entrance.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Thu afternoon, min 11°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Sun morning, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tue 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | W 14 | SW 18 | SW 18 | WNW 10 | WNW 20 | WNW 19 | WNW 19 | WNW 18 | WNW 17 | WNW 16 | NNW 8 | NW 8 | NW 8 | NW 8 | NW 8 | SW 17 | SW 17 | NW 8 | SW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 103 | 194 | 194 | 179 | 218 | 286 | 312 | 438 | 433 | 518 | 463 | 477 | 515 | 418 | 338 | 358 | 350 | 281 | 353 | 367 | 295 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | cross-on | cross | cross-on | cross-on | on | on | cross-on | glassy | on | cross-on | glassy | cross-on | on | glassy | on | cross-on | cross-on | cross-on |
High Tide | 00:11AM2.34m | 2:12PM1.63m | 1:03AM2.23m | 2:52PM1.70m | 1:55AM2.06m | 3:32PM1.77m | 2:49AM1.83m | 4:11PM1.82m | 3:46AM1.58m | 4:51PM1.86m | 4:51AM1.34m | 5:31PM1.87m | 6:08AM1.16m | ||||||||
Low Tide | 6:25PM0.92m | 7:38AM-0.59m | 7:22PM0.84m | 8:22AM-0.48m | 8:20PM0.77m | 9:03AM-0.31m | 9:18PM0.69m | 9:43AM-0.09m | 10:18PM0.62m | 10:21AM0.15m | 11:21PM0.55m | 11:01AM0.40m | 00:27AM0.46m | 11:42AM0.64m | |||||||
 |  |  | |  | | | | | | | | | | | | | | | | | |
 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 |
 | 8:46 | — | — | 8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | 8:43 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 11 | 13 | 13 | 12 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 14 | 14 | 13 | 14 | 14 | 13 | 14 |
Feels °C | 10 | 8 | 11 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 13 | 11 | 10 | 13 | 13 | 13 | 13 | 12 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | NNW 6 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 19 | WNW 18 | WNW 17 | WNW 16 | NNW 8 | NW 8 | WNW 16 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 99 | 45 | 151 | 179 | 106 | 68 | 312 | 438 | 433 | 518 | 441 | 477 | 353 | 418 | 338 | 314 | 330 | 281 | 254 | 235 | 184 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 9 | SW 18 | SW 17 | NNW 6 | WNW 19 | SW 16 | SW 15 | SW 19 | SW 19 | WNW 16 | WNW 16 | SW 18 | WNW 16 | WNW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 |
| kJ | 42 | 106 | 194 | 106 | 34 | 286 | 159 | 149 | 231 | 129 | 463 | 362 | 375 | 348 | 256 | 358 | 350 | 254 | 353 | 367 | 295 |
Swell 3 Height (m) Direction Period (s) | W 14 | SW 18 | SSW 12 | WNW 20 | WNW 20 | SW 16 | WNW 8 | S 11 | SW 14 | SW 14 | SW 14 | SW 17 | SW 13 | SW 19 | SW 16 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | S 13 | S 12 |
| kJ | 103 | 194 | 59 | 162 | 218 | 159 | 41 | 10 | 74 | 74 | 103 | 297 | 44 | 175 | 157 | 186 | 183 | 158 | 101 | 80 | 69 |
Wind waves Height (m) Direction Period (s) | NNW 5 | — | NNW 5 | NNW 5 | — | NNW 5 | NW 6 | NW 7 | NW 7 | NW 7 | — | — | NW 8 | — | — | — | — | — | — | — | — |
| kJ | 46 | — | 55 | 46 | — | 32 | 69 | 303 | 362 | 405 | — | — | 515 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 83 | 0 | 112 | 464 | 18 | 465 | 464 | 18 | 112 | 465 | 0 | 112 | 85 | 0 | 42 | 34 | 0 | 109 | 85 | 18 | 112 |
Best forecast wave conditions in Humboldt County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Harbor Entrance at Eureka Surf forecast
The above surf forecast table for Harbor Entrance at Eureka provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Harbor Entrance at Eureka can be found by selecting the local surf guide option on the grey menu. Our Harbor Entrance at Eureka 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 (Harbor Entrance at Eureka) 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 Harbor Entrance at Eureka 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.
Harbor Entrance at Eureka is 8 km (5 miles) from Eureka. If you plan a vacation in Humboldt County, look for hotels and other accommodation in Eureka. Eureka has rooms for a wide range of budgets as well as car hire and transport links.
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