Castlepoint - The Gap Surf Break

Lat Long: 40.91° S 176.22° E

Castlepoint - The Gap Surf Forecast and Surf Report

Issued: 11 am 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Castlepoint - The Gap sea temperature is
12.9° C
0.3° 

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 8 Jul 2026:

  • Best quality surf: Saturday 11 Jul, 9PM (local time) - 5ft (1.6m), 10s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Thursday 9 Jul, 6PM (local time) - 16ft (5.0m), 11s period, SE swell with 5,794 kJ wave energy.
  • Next surfable swell (1★+): Saturday 11 Jul, 9PM (local time) - 5ft (1.6m), 10s period with ESE 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 Saturday (Jul 11) at 9PM. The primary swell is predicted to be 1.0m and 16s period with a secondary swell of 1.6m and 10s. 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 5.0m 11s and forecast to arrive on Thursday (Jul 09) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Jul 13) at 3AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 11th Jul)5ft (1.6m) 10s
Best Surf 9PM (Sat 11th Jul)5ft (1.6m) 10s
Most Powerful 6PM (Thu 9th Jul)16ft (5.0m) 11s

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


G’day, Rusty here, and I’ve got the skinny on what’s coming at Castlepoint - The Gap. It’s been a rough start, and honestly, the first few days are a write-off. We’re looking at a big gap before anything vaguely rideable shows up, so don’t bother paddling out until then.

Through Wednesday the 8th, Thursday the 9th, and even Friday the 10th, it’s just nasty. Big, messy, wind-blown junk. The swell is pumping, but the wind is howling out of the south, cross-on, and it’s blowing everything to bits. The water is sitting at 55°F, which is about average for this time of year (normal anomaly), so nothing weird there, but you won’t care when you’re getting hammered by a near gale. The combined energy on Thursday hits a massive 5,524 to 5,801 (strong to very strong), but it’s all for nothing. Not a single wave worth paddling for.

Saturday the 11th is still a bit of a mess, but by the afternoon the wind drops to a gentle breeze, and the swell is waist-high at 6 ft from the ESE. It’s marginal, but you might find a lump. Not a standout.

Here’s the first real reason to get excited: Sunday morning, July 12th. The sky clears, the wind goes dead calm – offshore from the NW at just 3 mph – and the swell is a clean 4 ft from the ESE with a period of 10 seconds (moderate energy, 608). The report says “expect good surf conditions,” and I’m nodding along. It’s small, but glassy and clean. That’s your best option in the early run for a beginner to have a fun, safe session.

Then we hit another dry spell. The 13th, 14th, and 15th are all tiny, under 3 ft, or just poor. Nothing worth changing your plans for.

But hold on. Thursday, July 16th brings a pulse. The swell bumps up to 6 ft from the ESE, and the period stretches out to 14 seconds – that’s a long-period groundswell, meaning more energy and better shape. The combined energy is 1,202 (moderate). The wind is a light cross-on from the ENE, so it’s a little bumpy, but the report calls it “marginal” with a score that suggests it’s the best we’ve seen in a while. For a sheltered spot like The Gap, that long-period swell could wrap in nicely. Not a total standout, but it’s the first real window of decent surf.

Then more mediocrity. The 17th, 18th, 19th, and 20th are all cross-on, choppy, and blown out. The swell is there, but the wind is a fresh breeze from the NE, ruining the party. Close to 7 ft on the 18th (7 ft, with 2,006 energy), but it’s a messy, lumpy mess.

Finally, Tuesday morning, July 21st – a little reprieve. The wind goes light, cross-off, from the N at 6 mph, and the swell is a clean 3 ft from the ESE with a 12-second period (moderate energy, 575). The report says “expect good surf conditions.” It’s small, but it’s clean. A good little session for a quiet day.

But the real standout? Wednesday, July 22nd, morning. This is the one. The forecast says “excellent surf conditions for experienced surfers.” The swell jumps to 10 ft from the ENE with a 12-second period, and the combined energy is a massive 4,076 (very strong). The wind is a light offshore from the N at 6 mph, making it glassy and clean. That’s a solid, powerful groundswell. For a sheltered spot like The Gap, that’s going to be heavy, clean, and lined up. But at 10 ft, this is only for experienced surfers – beginners stay on the beach. If you’ve got the skills, this is your session. Crowds are “often” an issue at The Gap, so expect company.

The long-range look is promising but less certain – that Wednesday stand-out is a week and a half out, so keep an eye on the forecasts. The wind swings around on the 23rd, bringing a cross-shore mess, but that one morning on the 22nd is the clear winner.

Rusty.

Short Range Forecast

Heavy rain (total 49mm), heaviest during Wed night. Very mild (max 12°C on Wed morning, min 8°C on Fri morning). Winds decreasing (near gales from the S on Wed night, light winds from the SSW by Fri night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 12°C on Mon afternoon, min 6°C on Sat night). Wind will be generally light.

Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
1
0
2
1
2
2
2
1
1
0
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)
2.5
E
10
2.3
E
10
4.5
SSE
10
5
SSE
10
5
SE
11
3.5
ESE
11
3
ESE
11
2.5
ESE
10
2.4
ESE
10
2
ESE
10
1.9
ESE
10
1.5
ESE
10
1.3
ESE
10
1.2
ESE
10
0.9
ESE
9
0.8
ESE
10
0.6
ESE
10
0.4
SSW
13
0.4
ESE
10
0.4
ESE
10
0.5
E
10
Wave Graph
Metric surfscale
Energy kJ
1430
1034
4021
5202
5686
2939
1978
1249
1116
788
698
386
318
242
123
105
72
54
32
32
51
Wind (km/h)
25
SSE
35
S
50
SSE
50
S
50
S
40
S
30
S
30
SSW
15
SSW
20
S
15
S
10
W
5
NW
15
NE
15
NNW
15
N
20
NNE
25
NNW
20
NW
20
NW
25
NW
Wind State
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-off
off
cross-on
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
High Tide
11:10AM1.26m
11:38PM1.27m
11:59AM1.33m
00:27AM1.31m
12:51PM1.40m
1:19AM1.33m
1:45PM1.47m
2:16AM1.35m
2:41PM1.53m
3:16AM1.36m
3:37PM1.57m
4:16AM1.36m
4:35PM1.59m
Low Tide
5:24PM0.15m
5:56AM0.13m
6:15PM0.13m
6:41AM0.11m
7:07PM0.10m
7:30AM0.09m
8:02PM0.06m
8:22AM0.06m
8:59PM0.03m
9:20AM0.03m
9:59PM0.01m
10:21AM-0.01m
11:03PM-0.01m
light rain
mod rain
heavy rain
light rain
light rain
light rain
light rain
cloud
light rain
cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:39
7:37
7:37
7:37
7:37
7:37
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:00
5:00
5:01
5:02
5:02
5:04
5:05
 mm
4
6
30
4
2
1
1
1
Temp °C
12
11
11
10
10
9
8
8
9
9
9
8
9
9
8
11
12
12
14
15
13
Feels °C
7
4
1
-1
0
-1
0
1
3
4
5
5
6
5
4
6
7
7
11
11
9
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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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