Castlepoint - The Gap Surf Break

Lat Long: 40.91° S 176.22° E

Castlepoint - The Gap Surf Forecast and Surf Report

Issued: 11 pm 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Castlepoint - The Gap sea temperature is
12.9°C
0.0° 

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 21 Sep 2026:

  • Best quality surf: Thursday 24 Sep, 6AM (local time) - 7.5ft (2.3m), 9s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Monday 28 Sep, 4PM (local time) - 13ft (4.0m), 12s period, SSW swell with 4,442 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 22 Sep, 9AM (local time) - 3ft (0.9m), 11s period with S 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 22) at 9AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.4m and 13s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Castlepoint - The Gap in the next 16 days are 4.0m 12s and forecast to arrive on Monday (Sep 28) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Sep 22) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Tue 22nd Sep)3ft (0.9m) 11s
Best Surf 6AM (Thu 24th Sep)7.5ft (2.3m) 9s
Most Powerful 4PM (Mon 28th Sep)13ft (4.0m) 12s

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


Short Range Forecast

Moderate rain (total 11mm), heaviest on Tue morning. Very mild (max 14°C on Tue morning, min 5°C on Wed night). Winds decreasing (strong winds from the WNW on Mon night, calm by Thu afternoon).

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Sun morning. Very mild (max 14°C on Sat afternoon, min 8°C on Thu night). Winds increasing (calm on Fri night, near gales from the SSW by Sun afternoon).

Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
1
0
0
2
3
1
1
2
1
2
2
0
0
0
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)
1.3
S
12
0.9
S
11
1.6
S
6
1.3
S
8
1.9
S
7
2.1
S
8
2.4
SSW
9
2.2
SSW
9
1.6
S
8
1.3
S
9
0.7
SSW
15
1.2
S
14
1
S
13
0.9
SSW
12
0.8
ESE
13
0.8
ESE
12
0.8
ESE
12
1.6
S
6
3.5
SSW
9
Wave Graph
Metric surfscale
Energy kJ
472
181
181
207
397
632
938
692
363
245
228
557
339
240
202
164
167
164
1889
Wind (km/h)
40
WNW
15
W
25
SSW
15
NW
30
SSW
30
SSW
20
WSW
15
WSW
10
S
10
WNW
5
W
10
SE
5
E
5
NNE
20
NNE
25
N
40
NW
50
SSW
50
SW
Wind State
off
off
cross
off
cross
cross
cross-off
cross-off
cross-on
off
glassy
on
glassy
glassy
cross
cross-off
off
cross
cross-off
High Tide
00:57AM1.12m
1:21PM1.21m
1:41AM1.10m
2:02PM1.20m
2:27AM1.09m
2:47PM1.19m
3:14AM1.10m
3:34PM1.20m
4:04AM1.13m
4:26PM1.21m
4:55AM1.17m
5:22PM1.23m
Low Tide
7:01AM0.21m
7:38PM0.17m
7:41AM0.20m
8:17PM0.18m
8:24AM0.20m
9:00PM0.20m
9:13AM0.20m
9:51PM0.23m
10:08AM0.20m
10:49PM0.25m
11:05AM0.20m
11:49PM0.25m
clear
light rain
rain showers
clear
light rain
rain showers
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:03
6:01
6:00
5:58
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:10
6:12
6:13
6:14
6:15
7:15
 mm
4
4
2
1
5
3
3
Temp °C
13
14
7
8
9
9
8
10
10
8
12
11
10
11
14
13
13
8
7
Feels °C
3
11
1
0
1
1
1
4
6
5
8
7
8
8
9
8
5
-3
-5
  • 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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