Castlepoint - The Gap Surf Break

Lat Long: 40.91° S 176.22° E

Castlepoint - The Gap Surf Forecast and Surf Report

Issued: 11 am 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Castlepoint - The Gap sea temperature is
12.2°C
0.5° 

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 10 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 3AM (local time) - 10ft (3.0m), 15s period, S swell with offshore winds.
  • Most powerful swell: Saturday 12 Sep, 9PM (local time) - 10ft (3.0m), 15s period, S swell with 4,566 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 6AM (local time) - 1.5ft (0.5m), 19s 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 Friday (Sep 11) at 6AM. The primary swell is predicted to be 1.3m and 7s period with a secondary swell of 0.5m and 19s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Castlepoint - The Gap in the next 16 days are 3.0m 15s and forecast to arrive on Saturday (Sep 12) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Tuesday (Sep 15) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Fri 11th Sep)1.5ft (0.5m) 19s
Best Surf 3AM (Sun 13th Sep)10ft (3.0m) 15s
Most Powerful 9PM (Sat 12th Sep)10ft (3.0m) 15s

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


The Lowdown

G’day, I’m Rusty. Let’s chew the fat about what Castlepoint – The Gap has lined up for the next couple of weeks. This is a fairly consistent beginner-friendly nook, sheltered from a lot of punch, and the water’s sittin’ about 54°, which is dead normal for this time of year – no surprises there.

We’re startin’ off quiet. Thursday the 10th is a dud – tiny 3ft from the ESE with only 97 combined swell energy (weak), and though the wind’s offshore, it’s just ordinary soup. Not worth wettin’ the suit.

Friday the 11th is way more tasty. Mornin’ brings 2ft of SSW groundswell with a real long period of 18 seconds, combined energy jumps to 491 (moderate). Light cross-off breeze, clean lines – a proper little session for the groms. Afternoon gets a bit cooked with 30 km/h offshore, so grab the mornin’ slot.

Saturday the 12th builds but it’s messy. Mornin’ has 5ft from the SSW at 16 seconds with 1005 energy (strong), but that light cross-onshore wind keeps it average. Afternoon swells to 7ft from the south with 2135 energy (very strong) – onshore and lumpy. Gettin’ too big for the beginners.

Now Sunday the 13th is the standout – best of the whole outlook by a mile. Clear skies, light cross-off from the WSW, 7ft of clean S swell at 14 seconds. Combined energy sits at 1992 (very strong) and the quality is flagged as very good. That’s your day – solid, clean, offshore vibes. Crowds are often here, so expect a few in the water, but for quality like that, it’s fine.

Monday the 14th holds up. Mornin’ gives 6ft from the south at 12 seconds with 873 energy (moderate-strong) and clean north cross-off winds. Afternoon’s 5ft – both are good, clean runs for those who missed Sunday.

Tuesday the 15th drops hard – small 3ft with strong offshore winds that’ll make paddlin’ a chore. Wednesday the 16th is even worse – 1.0ft and rain. There’s a dry gap here for a few days.

Thursday the 17th and Friday the 18th stay small, 2ft to 4ft, with strong offshore again – clean but not enough push.

Saturday the 19th is a wash with strong cross-shore chop.

Sunday the 20th brings hope back. Mornin’ has 6ft from the south at 11 seconds, clean with 650 energy (moderate-strong). Afternoon pushes to 8ft from the SSE but with a short 7-second period – that’s windswell, fat and sloppy, though offshore might help. Now gettin’ big for beginners.

Monday the 21st and Tuesday the 22nd – this is absolute beast mode. Monday mornin’ 10ft from the south, afternoon hits 16ft from the SSE with 4503 energy (very strong). Way too big for this break – experts only. Tuesday the 22nd has 18ft from the SE with a monstrous 7435 energy – nuts, but only for the brave. Wednesday the 23rd still 10ft, but the wind’s all over.

Thursday the 24th calms to 7ft from the ESE with clean cross-off on the mornin’. Still serious size. Friday the 25th fades to 3ft and cross-shore chop – back to small stuff.

If you’re after one day to circle, it’s Sunday the 13th of September – clean, solid, quality energy. That’s your winner. The big stuff on the 21st and 22nd is more for the chargers and kite crew.

Rusty, out.

Short Range Forecast

Light rain (total 5mm), mostly falling on Thu afternoon. Very mild (max 13°C on Thu morning, min 8°C on Thu night). Winds decreasing (fresh winds from the NW on Fri afternoon, light winds from the SSE by Sat morning).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Mon afternoon, min 7°C on Sun night). Winds increasing (light winds from the SW on Sun night, strong winds from the WNW by Tue night).

Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
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
0
2
0
1
3
4
3
3
1
2
2
2
0
0
0
0
0
0
1
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
ESE
8
0.6
ESE
8
1.4
S
7
0.7
SSW
18
0.7
SSW
18
0.5
S
17
1.4
SSW
16
2.2
S
15
3
S
15
2.2
S
14
1.9
SSW
13
2
S
11
1.8
S
12
1.6
S
12
1.2
S
11
0.9
S
10
0.7
S
10
0.4
SSW
13
0.3
SSW
13
0.3
SSW
13
0.6
SSW
15
Wave Graph
Metric surfscale
Energy kJ
79
48
198
344
326
154
917
2090
3919
1977
1269
907
865
678
332
151
88
55
35
34
179
Wind (km/h)
20
WNW
15
SW
25
S
10
NW
30
NW
10
WSW
10
S
10
ESE
20
NNW
10
WSW
25
SSW
10
NW
10
N
15
N
25
WNW
30
WNW
40
WNW
45
WNW
25
NW
10
SSW
10
N
Wind State
off
cross-off
cross
cross-off
off
cross-off
cross-on
on
cross-off
cross-off
cross
off
cross-off
cross-off
off
off
off
off
off
cross
cross-off
High Tide
4:01PM1.41m
4:34AM1.26m
4:58PM1.38m
5:30AM1.27m
5:54PM1.34m
6:25AM1.30m
6:50PM1.31m
7:19AM1.32m
7:45PM1.29m
8:11AM1.34m
8:37PM1.28m
8:59AM1.34m
9:26PM1.27m
Low Tide
9:44AM-0.06m
10:17PM0.03m
10:44AM-0.04m
11:19PM0.07m
11:43AM-0.01m
00:17AM0.11m
12:40PM0.03m
1:11AM0.14m
1:36PM0.08m
2:01AM0.17m
2:31PM0.13m
2:50AM0.20m
3:25PM0.16m
cloud
light rain
rain showers
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:22
6:20
6:18
6:16
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:59
6:00
6:00
6:01
6:02
6:04
6:05
 mm
3
2
2
1
1
Temp °C
13
11
9
13
13
10
11
11
9
13
12
9
15
16
12
15
15
13
13
10
8
Feels °C
10
7
3
8
6
7
8
8
5
8
6
6
11
12
7
8
7
4
8
8
5
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Castlepoint - The Gap:

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 Castlepoint - The Gap 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 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.

Nearest locationNearest