Castlepoint - The Gap Surf Break

Lat Long: 40.91° S 176.22° E

Castlepoint - The Gap Surf Forecast and Surf Report

Issued: 5 pm 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Castlepoint - The Gap sea temperature is
12.7° 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 15 Jul 2026:

  • Best quality surf: Friday 17 Jul, 3PM (local time) - 5ft (1.6m), 15s period, S swell with cross-offshore winds.
  • Most powerful swell: Sunday 19 Jul, 12AM (local time) - 6.5ft (2.0m), 20s period, S swell with 3,134 kJ wave energy.
  • Next surfable swell (1★+): Thursday 16 Jul, 9PM (local time) - 3.5ft (1.0m), 16s 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 Thursday (Jul 16) at 9PM. The primary swell is predicted to be 1.0m and 16s period with a secondary swell of 0.4m and 4s. Another secondary swell of 0.5m and 4s is also forecast. 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 2.0m 20s and forecast to arrive on Sunday (Jul 19) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Jul 18) at 9AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 16th Jul)3.5ft (1.0m) 16s
Best Surf 3PM (Fri 17th Jul)5ft (1.6m) 15s
Most Powerful12AM (Sun 19th Jul)6.5ft (2.0m) 20s

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


The Lowdown

Alright, Rusty here, lookin’ at the Castlepoint region for the next couple of weeks. It’s a bit of a slow burner, but there are a couple of sessions that’ll have you frothing.

First thing to note, the water is sitting at 55°F, which is pretty much bang on average for this time of year. Not a shocker, just normal.

The surf is going to be a bit of a non-event for the first few days. We’ve got tiny, weak swell and a cross-off wind on Wednesday the 15th, with the combined energy sitting at a measly 80. It’s a pass for paddle surfing. Thursday the 16th and Friday morning the 17th see the swell trying to pick up, but the conditions are still pretty ordinary. You’re really waiting for Friday afternoon the 17th.

That’s when it starts to get interesting. The wind swings to a light, clean cross-off, and a 2 ft swell from the S rolls in with a solid 15-second period. The combined energy jumps to 2125, which is a proper boost. This is where the Castlepoint - The Gap (New Zealand) comes into its own. The Gap is a sheltered spot, and with that ESE optimum direction, it’s groomed to handle this S swell. The sets will be clean and powerful, but at 2 ft, it’s not for the faint-hearted. It’s excellent for experienced surfers.

Then Saturday the 18th is a real standout. The morning is a bit messy with a fresh offshore wind, but the afternoon... wow. We’re looking at a 5 ft S swell, but with a staggering 23-second period. That’s a very long-period groundswell, and the combined energy hits 2982. The wind is a gentle offshore from the WNW, keeping it glassy. This is the one to circle. The Gap will handle that long-period energy beautifully, producing long, clean walls. The crowd situation is “often” here, so you might have some company, but for waves like that, it’s worth it.

Sunday the 19th and Monday the 20th still have plenty of size, with the 20th offering glassy conditions on a 7 ft morning swell. That’s getting big, and at The Gap, it’s a sheltered spot, so it might be a bit of a beast. Definitely for the experienced crew only.

After that, the swells back off. The second week is a bit of a letdown. The 22nd and 23rd offer some clean, offshore conditions but the swell drops to 3 ft to 4 ft. It’s rideable, but nothing to write home about. The 24th onwards into the end of the month is mostly small, weak, and often messy. The 30th of July has a rogue 10 ft SSW swell showing up, but with a short 10-second period and a cross-shore wind, it’ll be a choppy, dangerous mess at The Gap. A proper kite surfing day, not a paddle surfing one.

So, to sum it up: the best of the best is the Saturday afternoon, July 18th at Castlepoint - The Gap (New Zealand). That very long-period S swell with the gentle offshore wind is a dream combo. The Friday afternoon, July 17th is also a top call. Get in the water.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Wed afternoon, min 9°C on Fri night). Winds decreasing (fresh winds from the WNW on Thu morning, calm by Thu night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 13°C on Sat afternoon, min 7°C on Sun night). Wind will be generally light.

Wed
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
1
0
0
2
3
4
3
2
4
3
2
3
3
4
4
4
3
3
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
ESE
11
0.5
E
13
0.6
ESE
15
0.8
ESE
16
1.1
ESE
16
1.3
ESE
16
1.6
S
15
1.4
ESE
15
1.3
ESE
14
1.5
S
23
2
S
20
1.8
SSW
18
1.6
SSW
16
1.7
S
15
2.2
S
15
1.9
SSW
15
1.4
S
18
1.9
S
14
1.7
S
13
1.5
S
12
1.2
S
12
Wave Graph
Metric surfscale
Energy kJ
43
86
167
298
635
892
1216
818
682
2343
3134
2042
1365
1332
2147
1641
1197
1442
1001
660
396
Wind (km/h)
15
NNW
25
NW
35
WNW
15
SSW
5
NW
10
WNW
15
NW
15
NW
30
NW
15
WNW
20
SW
15
SSW
10
S
5
WNW
5
W
5
E
5
NW
5
NW
10
NE
15
NW
25
NW
Wind State
cross-off
off
off
cross
glassy
off
cross-off
cross-off
off
off
cross-off
cross
cross-on
glassy
glassy
glassy
cross-off
cross-off
cross-on
off
off
High Tide
5:35PM1.58m
6:14AM1.35m
6:35PM1.54m
7:12AM1.34m
7:34PM1.50m
8:09AM1.35m
8:32PM1.44m
9:03AM1.36m
9:29PM1.40m
9:55AM1.36m
10:23PM1.36m
10:46AM1.36m
11:13PM1.33m
11:36AM1.35m
Low Tide
00:07AM-0.03m
12:20PM-0.09m
1:08AM-0.04m
1:19PM-0.10m
2:05AM-0.04m
2:17PM-0.08m
2:59AM-0.02m
3:16PM-0.04m
3:52AM0.01m
4:14PM0.01m
4:42AM0.05m
5:08PM0.07m
5:30AM0.10m
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:35
7:33
7:33
7:33
7:31
7:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:06
5:06
5:07
5:07
5:08
5:09
5:10
5:10
 mm
Temp °C
16
13
15
14
11
12
13
10
12
13
10
10
10
8
8
9
8
10
11
9
11
Feels °C
13
8
10
10
10
10
10
7
7
9
6
6
7
7
6
7
6
7
8
6
7
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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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