Princeton Breakwater surf break

Princeton Breakwater surfForecast / CAL – San Mateo / USA

information circle12 Day Weather and Surf, issued 9 am Thursday 18 Dec 2025 PST
Forecast update in hr  min  s Forecast update imminent
Princeton Breakwater surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Princeton Breakwater sea temperature is
12.9° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Princeton Breakwater this week:

The surf forecast for Princeton Breakwater over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 7PM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.2m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Princeton Breakwater in the next 12 days are 3.0m 10s and forecast to arrive on Thursday (Dec 25) at 1PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Thu 18th Dec)4.5ft (1.3m) 10s
Best Surf 7PM (Thu 18th Dec)4.5ft (1.3m) 10s
Most Powerful 1PM (Thu 25th Dec)10ft (3.0m) 10s

Table - best surf conditions forecast for Princeton Breakwater over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 48mm), heaviest during Sat night. Very mild (max 15°C on Fri morning, min 12°C on Thu morning). Winds increasing (calm on Thu morning, fresh winds from the SSW by Sat night).

Days 3-6 Weather Summary Heavy rain (total 54mm), heaviest during Mon afternoon. Very mild (max 16°C on Tue morning, min 11°C on Mon afternoon). Winds increasing (calm on Sun night, near gales from the S by Tue afternoon).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
1
2
1
1
1
1
1
0
0
0
2
2
2
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.6
W
1.4
W
1.2
W
1.4
W
1.6
W
1.8
W
1.5
W
1.1
W
0.8
W
1.4
WSW
1.3
WSW
1
W
0.9
WSW
0.8
WNW
0.9
WNW
2.2
S
3
S
1.5
WNW
1.1
WNW
2
S
3
SW
Period(s) (?)11111010111111111177710111178121279
Wave
Graph
(?)Metric surfscale
Energy kJ (?)60644930240859575051727414819717710616014617644013325793063601283
Wind
(km/h)
0
NW
10
NW
5
S
10
SSW
15
S
10
S
15
SSE
15
S
30
SSW
20
S
15
SSW
10
N
5
NE
10
NNW
40
SSE
45
SSE
50
S
25
W
30
S
55
SSE
45
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscrossglasscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
oncross-
off
glasscross-
off
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
11:09PM
1.29
9:04AM
1.77
11:46PM
1.30
9:41AM
1.76
12:22AM
1.31
10:18AM
1.75
12:57AM
1.32
10:57AM
1.71
1:31AM
1.34
11:38AM
1.64
2:06AM
1.37
12:24PM
1.54
2:42AM
1.43
Low Tide
/ height (m)
3:53PM
-0.18
3:26AM
1.03
4:27PM
-0.21
4:03AM
1.05
5:01PM
-0.22
4:40AM
1.06
5:36PM
-0.22
5:20AM
1.06
6:12PM
-0.20
6:04AM
1.05
6:50PM
-0.14
6:58AM
1.01
7:30PM
-0.06
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise7:18--7:18--7:20--7:20--7:20--7:20--7:22--
Sunset-4:52--4:53--4:53--4:54--4:54--4:55--4:55-
clear
clear
part cloud
part cloud
light rain
mod rain
light rain
heavy rain
heavy rain
light rain
light rain
cloud
cloud
heavy rain
mod rain
light rain
mod rain
rain showers
clear
rain showers
heavy rain
Rain (mm)
----263162141--219379-132
Temp. °C141314151414151515151412131115161514141413
Feels °C (?)1211121312121414111312111298775645
  • 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

Latest Updates

submit an eyeball surf report

Quick surf report for Princeton Breakwater:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Princeton Breakwater 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.


false

Information about the Princeton Breakwater Surf forecast

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

Princeton Breakwater is 13 km (8 miles) from Millbrae. If you plan a vacation in San Mateo, look for hotels and other accommodation in Millbrae. Millbrae has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest