Surf Forecasts:
Harbor Entrance at Eureka surf forecast from 12 Jul 2026:
- Best quality surf: Friday 17 Jul, 11PM (local time) - 8ft (2.5m), 8s period, NNW swell with glassy winds.
- Most powerful swell: Saturday 18 Jul, 2PM (local time) - 8ft (2.5m), 9s period, NW swell with 1,077 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 5AM (local time) - 5ft (1.6m), 8s period with NW 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 Monday (Jul 13) at 5AM. The primary swell is predicted to be 1.6m and 8s period. 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 2.5m 9s and forecast to arrive on Saturday (Jul 18) 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 15s period and expected on Saturday (Jul 11) at 11PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 13th Jul) | 5ft (1.6m) 8s |
| Best Surf | 11PM (Fri 17th Jul) | 8ft (2.5m) 8s |
| Most Powerful | 2PM (Sat 18th Jul) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Harbor Entrance at Eureka over the next 16 days.
Alright, Rusty here for the Harbor Entrance at Eureka. Let’s cut to it: it’s a rough 16 days. This is a beach/harbormouth spot for advanced surfers only. The water is 53°F, which is a bit chillier than normal for this time of year, so you’ll want a thick wetsuit.
We start off from Saturday the 11th with a real bummer. The surf is poor, with cross-onshore winds and choppy conditions. Swell heights are around 4 ft to 6 ft, but the wind is ruining it. The combined energy is moderate (234 to 393), but it’s not worth the effort.
Then we hit a calm patch around Wednesday the 15th. A long-period groundswell from the SW and WNW, with periods up to 20 seconds, brings some energy (507 to 681), but the swell is tiny – 1 ft to 2 ft. The wind is still onshore or cross-onshore, so it’s marginal. You might get a clean one, but it’s a long shot.
The swell picks up from Friday the 17th, with 7 ft to 8 ft from the NNW, but with a short period of 8-9 seconds. The energy is strong (1242 to 1724), but the cross-onshore wind makes it choppy. For a beach/harbormouth, this is more for kite surfers than paddle surfers. Anything over 8 ft on the 18th and 20th is only for experts, and the wind is not cooperating.
The best bet? The Saturday the 25th and Sunday the 26th, a week and a half out, so don’t hold your breath. A long-period SW groundswell (20-22 seconds) with 3 ft to 4 ft of swell, but again, cross-onshore wind. The energy is strong (1153 to 1420), but it’s not clean.
To sum it up: the wind is the main problem. If you’re a local who knows the harbor entrance, you might find a few on the 25th, but it’s not a great stretch. Don’t expect much.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Sat afternoon, min 10°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Thu afternoon, min 10°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sat 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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) | NW 10 | NW 10 | NW 7 | NW 9 | NW 7 | NW 8 | NW 8 | NW 8 | NNW 6 | NW 7 | SW 18 | SW 18 | NNW 7 | WNW 20 | WNW 19 | WNW 19 | WNW 18 | NNW 8 | NNW 8 | NNW 9 | NW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 211 | 542 | 317 | 206 | 301 | 338 | 253 | 133 | 132 | 126 | 210 | 194 | 162 | 221 | 286 | 312 | 438 | 504 | 654 | 1012 | 945 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross | cross-on | cross-on | glassy | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | glassy | on |
High Tide | 9:25PM2.27m | 11:56AM1.37m | 10:21PM2.34m | 12:45PM1.47m | 11:17PM2.37m | 1:29PM1.55m | 00:11AM2.34m | 2:12PM1.63m | 1:03AM2.23m | 2:52PM1.70m | 1:55AM2.06m | 3:32PM1.77m | 2:49AM1.83m | ||||||||
Low Tide | 3:23PM1.03m | 5:13AM-0.46m | 4:27PM1.03m | 6:04AM-0.58m | 5:27PM0.99m | 6:53AM-0.62m | 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 | |||||||
 |  |  | |  | | | | | | | | |  | | | | | | | | |
 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 |
 | 8:49 | — | — | 8:47 | — | — | 8:47 | — | — | 8:46 | — | — | 8:46 | — | — | 8:45 | — | — | 8:45 | — | 8:45 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 13 | 11 | 13 | 13 | 11 | 13 | 13 | 12 | 13 | 13 | 12 | 13 | 14 | 13 | 12 | 12 | 12 | 13 |
Feels °C | 12 | 10 | 10 | 10 | 9 | 11 | 11 | 9 | 11 | 10 | 10 | 11 | 11 | 10 | 11 | 12 | 10 | 9 | 9 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 10 | SW 14 | NW 9 | NW 7 | SSW 14 | SSW 14 | NW 8 | SSW 13 | NW 7 | NNW 7 | WNW 8 | WNW 8 | NNW 7 | WNW 19 | WNW 19 | WNW 18 | WNW 17 | NNW 8 | NNW 9 | WNW 16 |
| kJ | 211 | 542 | 197 | 206 | 301 | 173 | 161 | 113 | 98 | 126 | 210 | 90 | 105 | 111 | 286 | 312 | 438 | 433 | 654 | 1012 | 362 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SW 15 | W 18 | SSW 14 | SSW 14 | WNW 14 | WNW 15 | SSW 13 | W 14 | SSW 13 | WNW 9 | SW 18 | WNW 20 | WNW 8 | SW 16 | SW 16 | SW 15 | SW 19 | WNW 16 | WNW 16 | SW 17 |
| kJ | 268 | 220 | 26 | 166 | 178 | 37 | 76 | 156 | 106 | 99 | 127 | 194 | 162 | 134 | 159 | 159 | 149 | 231 | 518 | 376 | 243 |
Swell 3 Height (m) Direction Period (s) | W 19 | W 17 | SW 24 | S 18 | WNW 17 | SW 21 | WSW 20 | SW 19 | SW 19 | W 14 | SW 18 | W 13 | SW 17 | WNW 20 | WNW 12 | W 12 | S 11 | SW 14 | SW 19 | SW 14 | SW 13 |
| kJ | 7 | 5 | 22 | 25 | 55 | 18 | 38 | 133 | 59 | 103 | 194 | 89 | 106 | 221 | 30 | 26 | 10 | 74 | 129 | 74 | 46 |
Wind waves Height (m) Direction Period (s) | NNW 4 | — | NW 7 | NNW 6 | — | NW 8 | NW 8 | N 6 | NNW 6 | N 6 | — | NNW 7 | NNW 7 | NNW 7 | NW 7 | NW 7 | NNW 8 | NNW 8 | — | — | NW 9 |
| kJ | 16 | — | 317 | 155 | — | 338 | 253 | 36 | 132 | 86 | — | 175 | 134 | 75 | 143 | 184 | 337 | 504 | — | — | 945 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 85 | 52 | 319 | 465 | 4 | 112 | 85 | 18 | 112 | 85 | 0 | 112 | 85 | 4 | 112 | 173 | 73 | 362 | 465 | 0 | 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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