
Surf Forecasts:
Castlepoint - The Gap surf forecast from 1 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 6AM (local time) - 15ft (4.5m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 4 Aug, 6PM (local time) - 20ft (6.0m), 14s period, SSW swell with 13,663 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 12AM (local time) - 10ft (3.0m), 12s 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 Sunday (Aug 02) at 12AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.7m and 14s. 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 6.0m 14s and forecast to arrive on Tuesday (Aug 04) 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 0.9m 4s period and expected on Saturday (Aug 08) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 2nd Aug) | 10ft (3.0m) 12s |
| Best Surf | 6AM (Tue 4th Aug) | 15ft (4.5m) 13s |
| Most Powerful | 6PM (Tue 4th Aug) | 20ft (6.0m) 14s |
Table - best surf conditions forecast for Castlepoint - The Gap over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get stuck into what’s shaping up at Castlepoint – The Gap for the next couple of weeks. It’s a proper mixed bag, so don’t go making any firm plans too far out.
Things kick off pretty grim. This Saturday (August 1st) is a write-off – messy cross-shore wind and a big, lumpy 10ft swell with a combined energy of 2174 – feels more like a washing machine than a wave face. Not worth paddling out.
The first real glimmer of hope shows up on Sunday the 2nd. We’ve got clean conditions with a light offshore breeze and a solid 8ft south swell, period around 11 seconds. The water temp is 54°, which is about normal for this time of year, so not a shock to the system. This is a standout window for the week. The wave energy is moderate at 1574, but with that offshore wind, it’s going to be clean. Expect a few people out though – it can get crowded here.
Monday the 3rd is still rideable but smaller, with clean conditions and a dropping swell around 4ft to 4ft.
Now, watch out for Tuesday the 4th. Swell jumps up to 15ft to 16ft, with combined energy over 10,000. That is a massive, powerful groundswell. This is strictly for experts only, and honestly, it might just be too much for The Gap. If you’re not a pro, sit this one out.
After that big pulse, Wednesday and Thursday (5th-6th) are cleaner but smaller and mixed. Thursday morning on the 6th looks nice though – clean 5ft swell with light offshore wind.
The next real standout pops up on Friday the 7th. Morning has a 7ft south swell with a very long 18-second period, and it’s clean. Afternoon gets even bigger at 10ft with a 16-second period. This is excellent, long-period groundswell. For a point break like The Gap, this is money – long lines, proper shape, and easier paddling between sets. combined energy sits around 3266 to 4339. This is the best of the whole forecast.
From Saturday the 8th onward, things get messy again. The winds turn onshore or cross-shore and the quality drops. There’s a run of poor conditions from the 10th through to the 14th, with strong winds and lumpy, choppy surf. That’s nearly a full week of not much to write home about.
There is a small glimmer on the morning of the 15th – a tiny 3ft to 3ft swell but with a perfect light offshore wind, and a clean bump on the 16th with a moderate offshore breeze and 5ft swell.
So, to sum it up: this Sunday and next Friday are your true windows. Everything else is either too big, too messy, or too small. Keep your eyes on those days.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Very mild (max 14°C on Mon morning, min 4°C on Sat night). Winds decreasing (fresh winds from the SSW on Sat morning, light winds from the NW by Sun afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue morning. Mild temperatures (max 9°C on Wed morning, min 5°C on Wed night). Winds decreasing (strong winds from the SW on Tue morning, calm by Thu morning). | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
AM | PM | 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) | SSW 10 | S 11 | S 12 | S 11 | S 11 | SSE 11 | SSE 11 | SSW 13 | SSW 14 | S 13 | S 14 | SSW 14 | S 13 | S 12 | S 12 | SSE 11 | SSE 10 | SSE 10 | S 18 | S 16 | S 14 |
Wave Graph | |||||||||||||||||||||
1928 | 2513 | 2541 | 1265 | 835 | 604 | 302 | 476 | 2098 | 6343 | 10237 | 8878 | 3242 | 2254 | 1406 | 543 | 551 | 318 | 2946 | 4013 | 2107 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | off | off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | off | glassy | off | off | cross-off | cross-off |
High Tide | 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 | 10:50AM1.34m | 11:20PM1.29m | 11:40AM1.40m | 00:09AM1.31m | ||||||||
Low Tide | 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 | 4:51AM0.13m | 5:13PM0.10m | 5:37AM0.09m | 6:03PM0.06m | ||||||||
7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:15 | — | — | |
— | 5:20 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | |
mm | — | — | — | — | — | — | — | — | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 9 | 9 | 8 | 11 | 13 | 11 | 14 | 14 | 13 | 7 | 6 | 7 | 9 | 9 | 7 | 8 | 9 | 7 | 9 | 10 | 9 |
Feels °C | 0 | 1 | 3 | 7 | 10 | 6 | 10 | 9 | 6 | -2 | -4 | -3 | 2 | 3 | 3 | 6 | 6 | 4 | 6 | 6 | 5 |
Swell 1 Height (m) Direction Period (s) | SE 16 | SSW 13 | S 12 | S 11 | S 11 | SSE 11 | SSE 11 | SSW 13 | SSE 11 | NE 12 | — | S 14 | S 13 | S 12 | S 12 | SSE 11 | SSE 10 | SSE 10 | S 18 | S 16 | S 14 |
201 | 253 | 2541 | 1265 | 835 | 604 | 302 | 476 | 47 | 6 | — | 5835 | 3242 | 2254 | 1406 | 543 | 551 | 318 | 2946 | 4013 | 2107 | |
Swell 2 Height (m) Direction Period (s) | E 10 | SE 15 | SE 14 | SSE 14 | SSE 13 | SSW 10 | SSW 12 | SSE 11 | SE 14 | — | — | — | — | ESE 18 | SE 13 | S 11 | S 11 | SSW 10 | SE 9 | SE 10 | SE 12 |
33 | 174 | 181 | 165 | 309 | 218 | 160 | 180 | 8 | — | — | — | — | 31 | 82 | 466 | 229 | 78 | 203 | 147 | 66 | |
Swell 3 Height (m) Direction Period (s) | NE 18 | E 10 | NE 16 | SE 13 | NE 15 | NE 15 | SSW 9 | SSW 18 | NE 13 | — | — | — | — | NE 12 | SE 16 | SE 15 | E 18 | SE 13 | S 10 | — | NE 4 |
12 | 18 | 10 | 144 | 9 | 8 | 92 | 67 | 7 | — | — | — | — | 5 | 66 | 78 | 6 | 106 | 117 | — | 5 | |
Wind waves Height (m) Direction Period (s) | SSW 10 | S 11 | — | — | — | NW 3 | — | NW 2 | SSW 14 | S 13 | S 14 | SSW 14 | — | — | — | — | — | — | — | ESE 12 | NE 4 |
1928 | 2513 | — | — | — | 9 | — | 1 | 2098 | 6343 | 10237 | 8878 | — | — | — | — | — | — | — | 179 | 16 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 102 | 102 | 0 | 0 | 0 | 28 | 0 | 0 | 235 | 167 | 273 | 102 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 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.











