The Fort Surf Break

Lat Long: 38.51° N 123.25° W

The Fort Surf Forecast and Surf Report

Issued: 10 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Fort sea temperature is
14.7°C
0.1° 

The Fort surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The Fort surf forecast from 4 Sep 2026:

  • Best quality surf: Friday 11 Sep, 2AM (local time) - 7.5ft (2.3m), 10s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 11 Sep, 2AM (local time) - 7.5ft (2.3m), 10s period, SSW swell with 1,032 kJ wave energy.
  • Next surfable swell (1★+): Friday 4 Sep, 11PM (local time) - 3ft (0.9m), 16s period with SW swell.

Best Forecast Surf Conditions for The Fort this week:

The surf forecast for The Fort over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 04) at 11PM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.8m and 10s. Another secondary swell of 0.7m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at The Fort in the next 16 days are 2.3m 10s and forecast to arrive on Friday (Sep 11) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 4th Sep)3ft (0.9m) 16s
Best Surf 2AM (Fri 11th Sep)7.5ft (2.3m) 10s
Most Powerful 2AM (Fri 11th Sep)7.5ft (2.3m) 10s

Table - best surf conditions forecast for The Fort over the next 16 days.


The Lowdown

Alright mates, Rusty here, breaking it down.

The Fort is looking a bit average to start, but there’s a couple of real gems in the forecast. Water temp is about 59°F, which is pretty normal for this time of year.

First few days, from Friday the 4th to Tuesday the 8th, are a write-off. Swell is around 3ft to 4ft, but the wind is messy – cross or cross-onshore – and the energy is just moderate (around 500-700). Choppy and lumpy. Not worth a paddle.

Wednesday the 9th morning shows a little promise. The wind goes glassy, and we get a clean 3ft south swell with a 12-second period. Energy is still moderate (438), but with glassy conditions, it’s your first real chance.

The best window starts Thursday the 10th afternoon. The wind drops to glassy, and we get a clean 3ft southwest groundswell with a long 17-second period. Energy is a solid 730. That long period and the reef setup at The Fort will make for nice, well-shaped waves. The best session of the first week.

Friday the 11th morning is the absolute standout. Swell jumps to 6ft from the south-southwest – a bit heavy for beginners, but the wind is glassy and the energy is strong at 924. The period is a shorter 9 seconds, so you’ll get more frequent sets. That morning is the one to circle.

After that, the swell drops off. The 12th and 13th have some small, glassy waves but very little energy (down to 147). The second week is quiet with poor conditions from the 14th to the 17th, just small swell and fresh winds. The 18th morning sees a 7ft swell, but it’s cross-shore and lumpy. The 19th afternoon has a 7ft swell with strong energy (1179), but the wind is cross-shore, so it’s not the clean glass we had earlier.

Bottom line: Thursday the 10th afternoon for the clean, long-period groundswell, and Friday the 11th morning for the biggest, cleanest waves of the whole forecast.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Sun afternoon, min 12°C on Fri night). Winds increasing (calm on Fri morning, fresh winds from the WNW by Sun afternoon).

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Wed night, min 13°C on Tue night). Wind will be generally light.

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
0
1
2
1
0
2
1
1
2
1
1
1
2
1
2
1
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SW
18
0.8
SW
17
0.9
SW
16
0.9
SW
16
0.9
SSW
15
1
SSW
15
1
SSW
14
1
SSW
14
1.1
SSW
14
1.1
SSW
14
1
SSW
13
1
SSW
13
1
SSW
13
1.1
SSW
12
1.1
SSW
12
1
S
12
1
S
11
0.6
SW
17
0.7
SW
17
0.8
SW
17
2.3
SSW
10
Wave Graph
Metric surfscale
Energy kJ
375
346
437
358
414
461
437
394
494
427
384
378
361
392
367
299
260
243
283
408
1032
Wind (km/h)
10
W
20
WNW
10
N
10
W
20
WNW
10
NNW
20
WNW
30
WNW
10
N
5
SW
15
WNW
5
ENE
5
SW
15
WNW
10
NW
0
SW
10
WNW
10
N
5
WNW
5
SSE
5
E
Wind State
cross-on
cross-on
cross-off
cross-on
cross
cross-off
cross
cross
cross-off
on
cross
glassy
on
cross
cross
glassy
cross
cross-off
cross
glassy
cross-off
High Tide
4:35PM1.79m
7:50AM1.26m
5:49PM1.80m
8:46AM1.35m
7:03PM1.82m
9:30AM1.44m
8:09PM1.86m
10:08AM1.51m
9:08PM1.87m
10:43AM1.58m
10:03PM1.83m
11:16AM1.65m
10:55PM1.77m
Low Tide
10:26AM1.00m
00:25AM0.05m
12:00PM1.03m
1:36AM-0.04m
1:23PM0.96m
2:35AM-0.11m
2:29PM0.84m
3:25AM-0.15m
3:25PM0.68m
4:08AM-0.14m
4:15PM0.53m
4:48AM-0.08m
5:03PM0.40m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:45
6:46
6:47
6:48
6:48
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:37
7:35
7:34
7:31
7:30
7:29
 mm
1
Temp °C
17
17
15
17
17
14
17
18
15
18
19
17
19
19
15
17
19
21
25
27
22
Feels °C
15
14
13
15
14
12
13
13
12
17
17
15
18
18
14
17
17
19
23
27
23
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the The Fort Surf forecast

The above surf forecast table for The Fort provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Fort can be found by selecting the local surf guide option on the grey menu. Our The Fort 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 (The Fort) 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 The Fort 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.

The Fort is 38 km (24 miles) from the city of Windsor. If you plan a vacation in Sonoma County, look for hotels and other accommodation in Windsor. Windsor has rooms for a wide range of budgets as well as car hire and transport links.

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