Surf Forecasts:
Francis Beach surf forecast from 27 Aug 2026:
- Most powerful swell: Saturday 29 Aug, 8AM (local time) - 3ft (0.9m), 18s period, SSW swell with 541 kJ wave energy.
Best Forecast Surf Conditions for Francis Beach this week:
The most powerful waves expected at Francis Beach in the next 16 days are 0.9m 18s and forecast to arrive on Saturday (Aug 29) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 29th Aug) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Francis Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here, and I gotta be straight with you – this forecast is a tough one. We’re looking at a 16-day window that’s pretty much a desert for surf at Francis Beach.
Right now, the water’s sitting at a very unusual 61°F, which is 7°F warmer than we’d expect for this time of year. That’s a real standout, but it’s about the only thing to get excited about. The surf just isn't cooperating.
We’re starting off with a solid gap. The first few days, from Wednesday the 26th of August right through the end of the month, are all showing poor conditions. The swell is tiny, mostly around 0.5 to 1 feet, and the wind is blowing cross-on from the NW, chopping everything up. The wave energy is weak, with values like 239 and 364, just not enough to get the board wet.
The first hint of something, and I mean a hint, comes on Sunday the 30th of August. The morning session is marginal, with a 3-foot SSW swell and a solid 16-second period, which is a long period groundswell. The wind is onshore from the WNW, so it’s not clean, but the energy bumps up to 871. That afternoon the swell jumps to 5 feet from the WNW, but it’s a short, weak 7-second period, so it’s not going to hold up. The surf is still described as "marginal or questionable."
Monday the 31st and Tuesday the 1st of September are back to the same old story – tiny, weak swells and poor conditions. The energy drops back to 389 and then 222.
We get another small window on the 4th of September, a Friday. The morning has a 2-foot SW swell with a 17-second period, and the wind is a light cross-on from the SW, giving us some small ripples. The energy is moderate at 681, and it’s the best score we see, but it’s still just a 2 out of 10. The afternoon is similar.
After that, from the 5th of September onwards, it’s a long, drawn-out run of poor surf. The swell stays tiny, mostly 1 to 3 feet, with variable directions but all from the NW to W. The wind is almost always a cross-on from the NW, keeping the surface choppy. The energy levels are all weak, under 500. For the last week, from the 5th to the 10th of September, there’s nothing to recommend. It’s a total blank run.
Honestly, for a beach break like Francis Beach, with consistent cross-onshore winds and weak swell, this setup looks more interesting for kite surfing than paddle surfing. You’d be better off waiting for a change in the forecast. There’s no standout session in this whole window.
Rusty, signing out.
Short Range ForecastMostly dry. Very mild (max 19°C on Thu afternoon, min 13°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Sat afternoon, min 13°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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 14 | NW 7 | WNW 7 | WNW 7 | WNW 7 | SW 17 | SW 19 | SW 18 | SSW 18 | SW 16 | WNW 8 | SW 16 | WNW 7 | WNW 8 | SW 14 | WNW 8 | SSW 13 | SSW 13 | SSW 13 | SW 18 |
Wave Graph | ||||||||||||||||||||
93 | 233 | 145 | 154 | 208 | 153 | 299 | 319 | 534 | 326 | 443 | 358 | 234 | 226 | 211 | 134 | 116 | 114 | 114 | 93 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | cross-on |
High Tide | 10:02PM1.76m | 11:33AM1.46m | 10:43PM1.73m | 11:56AM1.52m | 11:25PM1.68m | 12:20PM1.58m | 00:09AM1.59m | 12:47PM1.65m | 00:59AM1.47m | 1:17PM1.70m | 1:56AM1.34m | 1:51PM1.74m | 3:05AM1.21m | |||||||
Low Tide | 4:19PM0.79m | 4:54AM-0.01m | 4:54PM0.69m | 5:23AM0.03m | 5:31PM0.59m | 5:52AM0.11m | 6:10PM0.47m | 6:22AM0.23m | 6:53PM0.37m | 6:55AM0.37m | 7:41PM0.27m | 7:31AM0.55m | 8:36PM0.20m | |||||||
— | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | |
7:46 | — | — | 7:45 | — | — | 7:45 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 16 | 18 | 19 | 15 | 16 | 17 | 14 | 15 | 16 | 14 | 15 | 16 | 14 | 15 | 16 | 15 | 16 | 17 | 14 |
Feels °C | 16 | 15 | 16 | 16 | 13 | 15 | 15 | 12 | 12 | 13 | 12 | 13 | 14 | 12 | 13 | 14 | 14 | 15 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 16 | WNW 7 | WNW 7 | SW 14 | WNW 7 | WNW 7 | SW 19 | WNW 8 | WNW 8 | SW 16 | SW 16 | WNW 7 | WNW 7 | WNW 8 | WNW 8 | SSW 14 | WNW 7 | WNW 7 | WNW 7 | SSW 13 |
88 | 163 | 99 | 103 | 208 | 153 | 299 | 256 | 186 | 326 | 371 | 214 | 147 | 226 | 159 | 134 | 70 | 57 | 34 | 93 | |
Swell 2 Height (m) Direction Period (s) | S 14 | SW 15 | SW 15 | S 11 | SW 14 | SW 17 | SW 13 | SW 18 | SSW 18 | S 9 | S 9 | SW 16 | SW 15 | SW 14 | SW 14 | SW 19 | SSW 13 | SSW 13 | SSW 13 | WNW 5 |
93 | 107 | 75 | 38 | 130 | 143 | 28 | 319 | 534 | 6 | 1 | 358 | 220 | 214 | 211 | 14 | 116 | 114 | 114 | 11 | |
Swell 3 Height (m) Direction Period (s) | W 13 | S 12 | SSW 12 | W 11 | SSW 12 | SW 14 | S 10 | S 10 | S 9 | — | — | S 9 | S 9 | S 9 | S 16 | SW 19 | W 9 | SW 18 | SW 18 | SW 18 |
30 | 76 | 45 | 39 | 45 | 65 | 18 | 16 | 7 | — | — | 2 | 2 | 2 | 19 | 14 | 7 | 51 | 50 | 79 | |
Wind waves Height (m) Direction Period (s) | WNW 6 | NW 7 | WNW 7 | WNW 7 | — | — | WNW 7 | — | WNW 8 | WNW 7 | WNW 8 | WNW 7 | WNW 7 | — | — | WNW 8 | — | — | — | — |
28 | 233 | 145 | 154 | — | — | 153 | — | 264 | 177 | 443 | 297 | 234 | — | — | 128 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 40 | 39 | 40 | 65 | 40 | 40 | 66 | 40 | 40 | 66 | 65 | 40 | 55 | 55 | 66 | 68 | 32 | 78 | 69 | 32 |
Best forecast wave conditions in San Mateo | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Francis Beach Surf forecast
The above surf forecast table for Francis Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Francis Beach can be found by selecting the local surf guide option on the grey menu. Our Francis Beach 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 (Francis Beach) 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 Francis Beach 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.
Francis Beach is 17 km (11 miles) from Belmont. If you plan a vacation in San Mateo, look for hotels and other accommodation in Belmont. Belmont has rooms for a wide range of budgets as well as car hire and transport links.











