Castlepoint - The Gap Surf Break

Lat Long: 40.91° S 176.22° E

Castlepoint - The Gap Surf Forecast and Surf Report

Issued: 11 am 07 Aug 2026 (local time)

Forecast update in  hr  min

Today's Castlepoint - The Gap sea temperature is
11.9° C
0.9° 

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 7 Aug 2026:

  • Best quality surf: Friday 7 Aug, 9PM (local time) - 6.5ft (2.0m), 13s period, S swell with offshore winds.
  • Most powerful swell: Friday 7 Aug, 9PM (local time) - 6.5ft (2.0m), 13s period, S swell with 1,329 kJ wave energy.
  • Next surfable swell (1★+): Friday 7 Aug, 9PM (local time) - 6.5ft (2.0m), 13s 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 (Aug 07) at 9PM. The primary swell is predicted to be 2.0m and 13s period with a secondary swell of 0.6m and 11s. 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 2.0m 13s and forecast to arrive on Friday (Aug 07) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Aug 09) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Fri 7th Aug)6.5ft (2.0m) 13s
Best Surf 9PM (Fri 7th Aug)6.5ft (2.0m) 13s
Most Powerful 9PM (Fri 7th Aug)6.5ft (2.0m) 13s

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


The Lowdown

Alright, let’s get into it.

The next couple of weeks are a real mixed bag for the Castlepoint region. We’ve got The Gap (Castlepoint) as our main focus, and it’s a spot that’s pretty sheltered, so it picks up the S and SSE swells okay. The water temp is sitting at 53°F, which is about normal for this time of year.

The surf kicks off this Friday morning, the 7th. We’ve got a solid 6ft of south swell rolling in with a 15-second period. The wind is light offshore from the WNW, so it’s going to be clean. The energy is strong, with a combined reading of 2000, and it's a proper groundswell. This is a good one for experienced surfers; the size and power are there, but it's not for the faint of heart. The afternoon bumps up to 7ft but keeps that clean offshore wind, so it’s still good.

Saturday the 8th is okay, but a step down. Swell drops to 6ft in the morning with a moderate offshore, but the period drops to 12 seconds. It’s clean, but not as exciting. The afternoon is smaller again at 5ft with a lighter cross-offshore breeze.

Sunday the 9th, we’re getting smaller again, down to 4ft in the morning. The wind goes cross-off, which isn't ideal. It’s marginal at best.

Monday the 10th, the surf is pretty poor. Small and ordinary conditions, not worth getting too excited about.

Tuesday the 11th, the swell bumps back up to 5ft with a 9-second period. The morning looks clean with a slight cross-offshore wind, making it a decent option. The afternoon gets a bit messier with a cross-onshore breeze.

From Wednesday the 12th through Thursday the 21st, things get messy. There's some swell, but the wind is all over the place, mostly cross or cross-onshore, and we get some rain. The energy is moderate, but the quality drops off hard.

Now, let’s talk about the standout. Sunday the 16th looks like the pick of the whole run. We’ve got a big 10ft south swell with an 11-second period and a gentle offshore wind. The combined energy is a massive 2532. This is a serious, powerful swell, and it’s only for experts. It’s going to be big, clean, and heavy. The morning is the time to go, as the afternoon wind goes a bit cross-off. This is the one to circle on the calendar.

The following Monday the 17th, that same big swell drops a bit to 8ft, but the wind is onshore and strong, so it’s blown out. No good.

The 19th has some size again in the afternoon with a 10ft swell, but with a cross-off wind at 28 mph, it’s going to be a washing machine. Not a paddle.

The 20th sees even bigger surf at 12ft, but with near gale-force cross-shore winds, it’s a complete write-off.

Then, finally, on Friday the 21st, it cleans up. We’ve got 8ft of south swell with an 11-second period, and a light cross-offshore wind. The energy is strong at 1458. This looks very good. It's not as big as the 16th, but it’ll still be a proper session for those who know what they're doing.

So, to be straight with you: if you’re an experienced surfer, Friday the 7th and especially Sunday the 16th are your days. The 21st is also promising. The rest of the time, it’s a bit average, and there are some big gaps in between. A lot of waiting for the good ones.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 14°C on Sat afternoon, min 5°C on Fri morning). Winds increasing (light winds from the NW on Fri afternoon, fresh winds from the WNW by Sun night).

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Wed morning. Very mild (max 12°C on Mon morning, min 9°C on Mon night). Wind will be generally light.

Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
3
2
2
2
1
0
0
1
0
2
2
1
0
0
0
1
1
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)
1.7
S
15
2.2
S
14
1.7
S
12
1.7
S
12
1.5
S
11
1.4
S
11
1.2
S
10
1
S
10
0.9
SSE
10
0.8
SSE
10
1.3
SSW
9
2
S
9
1.6
S
9
1.5
SSE
9
1.1
SSE
8
1.6
NE
7
1.5
NE
7
0.8
ENE
7
0.8
E
7
1
E
7
1.5
ENE
7
Wave Graph
Metric surfscale
Energy kJ
1262
1781
871
778
543
441
296
208
180
128
243
632
412
315
142
233
204
59
59
92
192
Wind (km/h)
10
WNW
10
NW
20
NW
20
WNW
10
N
10
N
20
N
25
NW
25
WNW
15
WSW
20
SW
25
SW
5
WSW
15
NE
20
NNE
25
NNE
20
NNE
15
N
10
N
15
NE
10
N
Wind State
off
off
off
off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-on
cross
cross
cross
cross-off
cross-off
cross
cross-off
High Tide
11:40AM1.40m
00:09AM1.31m
12:32PM1.45m
1:01AM1.32m
1:27PM1.48m
1:57AM1.31m
2:22PM1.51m
2:56AM1.30m
3:19PM1.51m
3:56AM1.29m
4:17PM1.50m
4:54AM1.29m
5:16PM1.47m
Low Tide
6:03PM0.06m
6:24AM0.05m
6:54PM0.02m
7:12AM0.01m
7:45PM-0.01m
8:04AM-0.02m
8:39PM-0.03m
9:00AM-0.05m
9:37PM-0.03m
10:00AM-0.07m
10:39PM-0.01m
11:01AM-0.09m
11:43PM0.00m
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
cloud
cloud
light rain
light rain
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:15
7:13
7:13
7:11
7:09
7:09
7:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:25
5:27
5:28
5:29
5:30
5:30
5:31
 mm
3
3
Temp °C
8
9
10
12
14
11
14
14
12
12
12
9
11
10
10
9
10
11
16
16
12
Feels °C
5
6
6
10
12
7
8
9
6
7
7
4
10
7
6
4
6
8
14
13
10
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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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