Castlepoint - The Gap Surf Break

Lat Long: 40.91° S 176.22° E

Castlepoint - The Gap Surf Forecast and Surf Report

Issued: 11 am 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Castlepoint - The Gap sea temperature is
12.0°C
0.7° 

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


Castlepoint - The Gap surf forecast from 5 Sep 2026:

  • Best quality surf: Saturday 12 Sep, 12PM (local time) - 15ft (4.5m), 12s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Saturday 12 Sep, 12PM (local time) - 15ft (4.5m), 12s period, SSW swell with 5,616 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 8 Sep, 9PM (local time) - 6ft (1.8m), 9s period with SE swell.

Best Forecast Surf Conditions for Castlepoint - The Gap this week:

The surf forecast for Castlepoint - The Gap over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 08) at 9PM. The primary swell is predicted to be 1.8m and 9s period with a secondary swell of 0.4m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Castlepoint - The Gap in the next 16 days are 4.5m 12s and forecast to arrive on Saturday (Sep 12) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Friday (Sep 11) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Tue 8th Sep)6ft (1.8m) 9s
Best Surf12PM (Sat 12th Sep)15ft (4.5m) 12s
Most Powerful12PM (Sat 12th Sep)15ft (4.5m) 12s

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


Short Range Forecast

Heavy rain (total 48mm), heaviest during Sun night. Very mild (max 17°C on Sun afternoon, min 8°C on Mon afternoon). Winds decreasing (fresh winds from the WNW on Sat night, light winds from the SSE by Mon night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Wed afternoon, min 6°C on Tue night). Winds increasing (calm on Tue night, fresh winds from the SW by Thu night).

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
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
1
0
0
0
0
0
0
2
2
1
2
1
0
0
0
0
1
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SSW
8
0.7
SSW
10
0.8
SSW
11
0.4
SSW
18
0.6
SSW
16
0.3
SSW
17
1.3
S
8
2.5
SSE
8
3
SE
9
2.3
SE
9
2.1
SE
9
1.7
SE
8
1.4
SE
8
1.2
SE
8
0.8
SE
8
0.6
SE
8
0.3
SSW
14
0.3
SSW
20
0.5
S
19
0.6
SSW
18
0.5
S
18
Wave Graph
Metric surfscale
Energy kJ
62
100
130
104
208
55
196
786
1367
872
654
411
266
187
82
49
37
77
176
266
173
Wind (km/h)
15
WNW
25
WNW
30
WNW
35
WNW
20
NNW
20
NW
30
SSE
30
SSE
20
SE
10
S
15
S
5
W
10
N
15
N
30
NNW
25
NW
25
NW
20
W
15
NW
35
WNW
30
SW
Wind State
off
off
off
off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
High Tide
11:23AM1.45m
11:52PM1.32m
12:17PM1.46m
00:45AM1.30m
1:11PM1.46m
1:41AM1.28m
2:07PM1.45m
2:39AM1.26m
3:03PM1.43m
3:37AM1.26m
4:01PM1.41m
4:34AM1.26m
4:58PM1.38m
Low Tide
5:51PM-0.02m
6:07AM-0.01m
6:40PM-0.05m
6:56AM-0.05m
7:30PM-0.06m
7:48AM-0.07m
8:22PM-0.05m
8:45AM-0.07m
9:18PM-0.01m
9:44AM-0.06m
10:17PM0.03m
10:44AM-0.04m
11:19PM0.07m
clear
part cloud
clear
cloud
part cloud
heavy rain
heavy rain
mod rain
light rain
part cloud
part cloud
clear
clear
clear
clear
cloud
cloud
clear
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:31
6:30
6:28
6:26
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:54
5:55
5:57
5:58
5:59
6:00
 mm
24
14
8
2
3
Temp °C
15
15
14
15
17
14
10
9
9
10
11
8
12
15
12
13
13
10
12
13
9
Feels °C
11
9
7
8
13
10
4
3
6
7
7
6
8
11
6
8
7
6
6
6
0
  • 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 Castlepoint - The Gap Surf forecast

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

Are you planning a holiday in The Wairarapa? If you are looking for accommodation near Castlepoint - The Gap, camping, hotels and holiday cottages in The Wairarapa, consider staying in Masterton which is 48 km (30 miles) away. Other places in and around The Wairarapa where you can find information about places to rent, and car hire include Palmerston North which is 80 km (50 miles) away and Levin, 86 km (53 miles) away.

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