Bill's Bowls surfForecast / CAL – Sonoma / USA

information circle12 Day Weather and Surf, issued 10 pm Saturday 16 Aug 2025 PDT
Forecast update in hr  min  s Forecast update imminent
Bill's Bowls surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bill's Bowls sea temperature is
13.7° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for Bill's Bowls this week:

The surf forecast for Bill's Bowls over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 19) at 8AM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.5m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Bill's Bowls in the next 12 days are 2.2m 8s and forecast to arrive on Thursday (Aug 21) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 14s period and expected on Sunday (Aug 17) at 2AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 19th Aug)2ft (0.6m) 16s
Best Surf 5AM (Fri 22nd Aug)6ft (1.9m) 8s
Most Powerful11PM (Thu 21st Aug)7ft (2.2m) 8s

Table - best surf conditions forecast for Bill's Bowls over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 19°C on Tue afternoon, min 12°C on Sun night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Wed afternoon, min 12°C on Tue night). Winds decreasing (fresh winds from the NW on Wed afternoon, calm by Fri morning).

Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Sat
23
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.3
SW
0.9
WNW
0.7
WNW
0.8
WNW
0.4
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
1.8
NW
0.6
SW
1.2
WNW
2.1
NW
1.6
WNW
0.5
SW
1.6
WNW
1.4
WNW
0.6
SW
Period(s) (?)191111101817161616161515814888167714
Wave
Graph
(?)Metric surfscale
Energy (?)136325252244193246252212219288312293744282363948532237575475330
Wind
(km/h)
15
NW
15
WNW
30
WNW
10
NNW
15
WNW
25
WNW
10
NNW
15
WNW
30
WNW
10
NNW
20
WNW
30
NW
15
NNW
10
WNW
20
WNW
5
NNW
10
W
15
WNW
5
NNW
15
WNW
25
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
oncross-
on
cross-
on
oncross-
on
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
oncross-
on
glassoncross-
on
High Tide
/ height (m)
7:43AM
1.21
5:57PM
1.87
8:55AM
1.30
7:03PM
1.89
9:47AM
1.39
8:07PM
1.91
10:31AM
1.46
9:04PM
1.92
11:09AM
1.50
9:55PM
1.90
11:44AM
1.54
10:43PM
1.84
12:16PM
1.56
Low Tide
/ height (m)
12:36AM
0.07
11:51AM
0.97
1:47AM
-0.03
1:14PM
1.00
2:47AM
-0.11
2:24PM
0.95
3:39AM
-0.17
3:22PM
0.86
4:24AM
-0.19
4:14PM
0.77
5:04AM
-0.17
5:01PM
0.67
5:40AM
-0.11
5:46PM
0.59
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Sat
23
Sunrise-6:28--6:28--6:30--6:31--6:31--6:33--6:33-
Sunset--8:04--8:02--8:01--8:00--7:59--7:58--7:55
part cloudpart cloudclearclearclearclearclearclearclearclearclearclearclearclearpart cloudclearclearpart cloudclearclearpart cloud
Rain (mm)
---------------------
Temp. °C171718161818161819172022172122172121171920
Feels °C (?)141614121514121514131616131918142019151717
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for CAL - Sonoma

  1. weather stationWind Update Continuing clean conditions at Bill's Bowls (calm at Cazadero 12 km from Bill's Bowls). 1.3m 8s swell from the WNW to make surfable waves.

    Bill's Bowls
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Actual: 53 min ago

0 km/h
NNW
Clean
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Bill's Bowls surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Bill's Bowls Surf forecast

The above surf forecast table for Bill's Bowls provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Bill's Bowls can be found by selecting the local surf guide option on the grey menu. Our Bill's Bowls 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 (Bill's Bowls) 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 Bill's Bowls 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.

Bill's Bowls is 40 km (25 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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