
Surf Forecasts:
Big River surf forecast from 5 Jul 2026:
- Best quality surf: Tuesday 7 Jul, 2AM (local time) - 2.5ft (0.8m), 20s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 9 Jul, 8PM (local time) - 10ft (3.0m), 8s period, NW swell with 1,371 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 8PM (local time) - 2.5ft (0.7m), 18s period with SSW swell.
Best Forecast Surf Conditions for Big River this week:
The surf forecast for Big River over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 05) at 8PM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 1.4m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Big River in the next 16 days are 3.0m 8s and forecast to arrive on Thursday (Jul 09) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 5th Jul) | 2.5ft (0.7m) 18s |
| Best Surf | 2AM (Tue 7th Jul) | 2.5ft (0.8m) 20s |
| Most Powerful | 8PM (Thu 9th Jul) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Big River over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 12°C on Sun afternoon, min 9°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Fri afternoon, min 10°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||||
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) | NW 8 | SSW 18 | NW 8 | NW 8 | SSW 16 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 18 | NW 8 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | SSW 14 | SSW 15 | SSW 15 |
Wave Graph | |||||||||||||||||||||
304 | 395 | 327 | 299 | 330 | 485 | 485 | 531 | 651 | 491 | 979 | 696 | 762 | 1136 | 1053 | 736 | 975 | 421 | 268 | 272 | 283 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross | cross | glassy | cross | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | cross | cross | glassy |
High Tide | 4:20PM1.48m | 3:26AM1.30m | 4:54PM1.57m | 4:40AM1.15m | 5:31PM1.66m | 6:13AM1.04m | 6:13PM1.77m | 7:51AM1.03m | 7:00PM1.88m | 9:17AM1.09m | 7:51PM1.99m | 10:25AM1.17m | 8:45PM2.09m | ||||||||
Low Tide | 9:18AM0.07m | 10:02PM0.73m | 9:53AM0.22m | 11:13PM0.59m | 10:31AM0.38m | 00:24AM0.40m | 11:15AM0.54m | 1:31AM0.18m | 12:08PM0.69m | 2:32AM-0.04m | 1:09PM0.79m | 3:27AM-0.24m | 2:15PM0.85m | 4:19AM-0.40m | |||||||
5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | |
— | 8:45 | — | — | 8:44 | — | — | 8:44 | — | — | 8:44 | — | — | 8:43 | — | — | 8:43 | — | — | 8:43 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 12 | 11 | 12 | 12 | 11 | 12 | 12 | 11 | 12 | 13 | 12 | 13 | 13 | 12 | 14 | 15 | 13 | 15 | 15 | 13 |
Feels °C | 9 | 10 | 11 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 11 | 12 | 11 | 12 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | SSW 18 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | NW 9 |
304 | 284 | 327 | 299 | 306 | 308 | 311 | 531 | 651 | 491 | 667 | 407 | 643 | 436 | 377 | 382 | 362 | 272 | 268 | 272 | 110 | |
Swell 2 Height (m) Direction Period (s) | WNW 13 | SSW 18 | WNW 13 | WNW 12 | SSW 16 | SSW 20 | SSW 20 | SSW 14 | SSW 15 | SW 15 | S 20 | SW 14 | — | S 18 | — | — | — | S 21 | W 18 | WNW 10 | SSW 15 |
140 | 395 | 209 | 180 | 330 | 485 | 485 | 140 | 188 | 174 | 119 | 91 | — | 160 | — | — | — | 9 | 6 | 61 | 283 | |
Swell 3 Height (m) Direction Period (s) | SSW 18 | WNW 13 | SSW 18 | SSW 17 | WNW 12 | WNW 11 | SW 16 | WNW 11 | S 21 | S 11 | — | S 19 | — | — | — | — | — | W 18 | — | S 20 | S 19 |
216 | 118 | 207 | 246 | 174 | 151 | 255 | 75 | 35 | 9 | — | 117 | — | — | — | — | — | 6 | — | 30 | 29 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NW 8 | — | NW 7 | NW 7 | NW 8 | NW 8 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 6 |
— | — | — | — | — | 393 | — | 301 | 341 | 446 | 979 | 696 | 762 | 1136 | 1053 | 736 | 975 | 421 | 255 | 225 | 177 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 57 | 7 | 0 | 202 | 304 | 0 | 277 | 304 | 0 | 129 | 304 | 59 | 202 | 303 | 0 | 129 | 304 | 0 | 202 | 23 | 0 |
Best forecast wave conditions in Mendocino County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Big River Surf forecast
The above surf forecast table for Big River provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big River can be found by selecting the local surf guide option on the grey menu. Our Big River 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 (Big River) 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 Big River 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.
Big River is 54 km (34 miles) from Ukiah. If you plan a vacation in Mendocino County, look for hotels and other accommodation in Ukiah. Ukiah has rooms for a wide range of budgets as well as car hire and transport links.










