Surf Forecasts:
Castlepoint - The Gap surf forecast from 30 Jul 2026:
- Best quality surf: Saturday 1 Aug, 6PM (local time) - 16ft (5.0m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 1 Aug, 6PM (local time) - 16ft (5.0m), 13s period, SSW swell with 7,544 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 6PM (local time) - 16ft (5.0m), 13s period with SSW 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 (Aug 01) at 6PM. The primary swell is predicted to be 5.0m and 13s period with a secondary swell of 4.0m and 13s. Another secondary swell of 0.7m and 15s is also forecast. 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 13s and forecast to arrive on Saturday (Aug 01) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Aug 01) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sat 1st Aug) | 16ft (5.0m) 13s |
| Best Surf | 6PM (Sat 1st Aug) | 16ft (5.0m) 13s |
| Most Powerful | 6PM (Sat 1st Aug) | 16ft (5.0m) 13s |
Table - best surf conditions forecast for Castlepoint - The Gap over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s break down what’s happening at Castlepoint - The Gap.
First thing, we’ve got a bit of a dry spell. The immediate forecast is rough with onshore winds and sloppy conditions. There’s a real gap before we see anything worth paddling out for. Hang tight.
The clear winner, the one you want to mark on your calendar, is Sunday, August 2nd. In the morning, the wind is offshore from the WNW at 9 mph, and we’ve got a solid 8 ft swell from the S. The energy is strong (1762), and it’s looking like very good surf. That’s a sweet spot. Then the afternoon goes glassy, with a light 6 ft leftover swell. It’s not massive, but it’ll be clean and fun. The water temp is about normal for this time of year.
Monday, August 3rd, is another solid option. A moderate offshore breeze from the WNW keeps things tidy, with a 4 ft swell from the SSE. The wave energy is moderate (405), and it’s a good call for beginners. The crowd factor is “often” here, so you won’t be alone.
The second week brings some serious size for the experts, but it’s a double-edged sword. On August 4th, we see a big jump to a 13 ft S swell (energy 7161) with a very long period of 15 seconds. That’s real groundswell, perfect for a reef or point, but at that size, it’s for experts only. The wind is cross-offshore, so it’ll be clean, but the power is enormous. The morning of August 5th is also a strong option for experienced surfers with an 8 ft S swell (energy 2220) and clean conditions.
After that, things go downhill. From August 8th through the 15th, the wind is stuck from the east or ENE, blowing cross-on or onshore, and the surf quality is mostly poor. There’s plenty of size, with waves over 10 ft, but the wind is ruining the shape. With the beachbreak setup here, this is looking more like a session for the kite surfers than for paddle boards. It’s a bummer, because there’s energy in the water, but it’s not going to be good.
So, the best bet is Sunday, August 2nd, for the cleanest and most manageable waves. Surf it early, surf it glassy, and enjoy it.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Very mild (max 13°C on Thu night, min 4°C on Sat night). Winds decreasing (strong winds from the SW on Fri night, calm by Sun afternoon). | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Mon morning, min 6°C on Tue night). Winds decreasing (fresh winds from the WNW on Mon afternoon, light winds from the SSW by Wed afternoon). | ||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | ESE 11 | ESE 11 | E 11 | SE 15 | SSW 11 | SSW 13 | S 12 | S 11 | S 11 | SSE 11 | SSE 10 | S 12 | S 15 | S 15 | S 14 | S 14 | S 13 | S 12 | SSE 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 314 | 158 | 114 | 109 | 3918 | 5092 | 4146 | 1351 | 734 | 655 | 232 | 371 | 1019 | 7161 | 5681 | 3345 | 2209 | 1884 | 1013 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | cross-off | cross | cross-off | off | glassy | off | off | off | cross | cross-off | cross-off | cross-off | cross-off | cross | off |
High Tide | 6:07AM1.06m | 6:19PM1.17m | 6:55AM1.07m | 7:09PM1.17m | 7:42AM1.10m | 8:01PM1.17m | 8:30AM1.15m | 8:54PM1.20m | 9:16AM1.21m | 9:44PM1.23m | 10:02AM1.27m | 10:32PM1.26m | |||||||
Low Tide | 00:12AM0.26m | 12:07PM0.23m | 1:01AM0.23m | 12:54PM0.21m | 1:48AM0.21m | 1:44PM0.19m | 2:34AM0.20m | 2:36PM0.18m | 3:20AM0.18m | 3:30PM0.16m | 4:05AM0.16m | 4:22PM0.13m | |||||||
 |  | |  |  |  |  | | |  | | | | | | | | | | |
 | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — |
 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — |
mm | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 12 | 10 | 9 | 9 | 7 | 10 | 13 | 11 | 14 | 14 | 12 | 9 | 10 | 7 | 8 | 9 | 7 |
Feels °C | 7 | 5 | 3 | 1 | -1 | -1 | 1 | 6 | 10 | 6 | 9 | 8 | 5 | 1 | 3 | 1 | 4 | 6 | 4 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | ESE 11 | E 11 | E 11 | SE 16 | SE 15 | S 12 | S 11 | S 11 | SSE 11 | SSE 10 | S 12 | S 15 | S 15 | S 14 | S 14 | S 13 | S 12 | SSE 13 |
| kJ | 314 | 158 | 114 | 57 | 201 | 181 | 3027 | 1351 | 734 | 655 | 232 | 371 | 1019 | 7161 | 5681 | 3345 | 2209 | 1884 | 1013 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | NE 7 | NE 7 | SE 15 | E 12 | E 12 | SE 14 | SSE 14 | SSE 13 | SSW 10 | SSW 9 | SSE 10 | SSE 10 | — | NE 12 | NE 12 | NE 12 | NE 11 | S 12 |
| kJ | 34 | 50 | 26 | 109 | 24 | 11 | 179 | 269 | 408 | 78 | 118 | 170 | 42 | — | 6 | 6 | 5 | 5 | 761 |
Swell 3 Height (m) Direction Period (s) | S 16 | SSW 14 | SE 15 | NE 8 | E 13 | NE 17 | NE 16 | SE 13 | SSW 11 | NE 15 | S 13 | SSW 18 | SE 14 | — | NE 12 | — | NE 12 | NE 12 | NE 11 |
| kJ | 20 | 40 | 59 | 10 | 14 | 12 | 10 | 142 | 66 | 8 | 55 | 66 | 8 | — | 6 | — | 6 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | N 3 | NW 3 | WNW 4 | SW 5 | SSW 11 | SSW 13 | S 12 | — | — | NW 2 | WNW 4 | W 2 | S 6 | — | — | — | — | — | NNE 4 |
| kJ | 5 | 5 | 19 | 51 | 3918 | 5092 | 4146 | — | — | 2 | 5 | 1 | 92 | — | — | — | — | — | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 55 | 74 | 143 | 183 | 135 | 273 | 1 | 0 | 0 | 28 | 0 | 16 | 156 | 99 | 99 | 1 | 0 | 1 | 0 |
Best forecast wave conditions in The Wairarapa | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
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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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