Surf Forecasts:
Castlepoint - The Gap surf forecast from 28 Jul 2026:
- Best quality surf: Tuesday 4 Aug, 6AM (local time) - 16ft (5.0m), 14s period, SSW swell with cross-shore winds.
- Most powerful swell: Tuesday 4 Aug, 9AM (local time) - 18ft (5.5m), 14s period, SSW swell with 11,260 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 12AM (local time) - 6.5ft (2.0m), 13s 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 Wednesday (Jul 29) at 12AM. The primary swell is predicted to be 2.0m and 13s period with a secondary swell of 0.4m 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 5.5m 14s and forecast to arrive on Tuesday (Aug 04) at 9AM. Winds are predicted to be cross-shore 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+) | 12AM (Wed 29th Jul) | 6.5ft (2.0m) 13s |
| Best Surf | 6AM (Tue 4th Aug) | 16ft (5.0m) 14s |
| Most Powerful | 9AM (Tue 4th Aug) | 18ft (5.5m) 14s |
Table - best surf conditions forecast for Castlepoint - The Gap over the next 16 days.
The Lowdown
Alright, Rusty here again, but in feet and miles per hour.
Let’s talk about Castlepoint - The Gap for the next couple of weeks. It’s a slow start before a big pulse of swell, but you gotta pick your moments.
The water temp is around 54°F, pretty much normal for this time of year.
Tuesday the 28th of July kicks off with a 7ft ESE swell, 13-second period, and energy at 1639 (moderate). The wind is a light cross-on from the SSE at 3 mph. It’s surfable, but nothing special. Wednesday and Thursday drop off in size, and the wind picks up, so those days are more for a cruise than a proper session.
Friday the 31st is tiny, under 3ft, with a fresh offshore breeze. Clean but no power.
Then Saturday the 1st of August cranks up: a 12ft SSW swell with an 11-second period and energy at 2931 (moderate), but the wind is messy, gusting at 25 mph. The swell is too big for beginners, and the conditions are sloppy. Sunday the 2nd is still big at 10ft, but the wind is howling at 25 mph from the SW, making it a total mess. That’s a kite day, not a paddle day.
The real standout is Monday the 3rd of August in the morning. A 7ft SSE swell, 10-second period, with light NW wind at 6 mph giving you clean, cross-off conditions. Energy is 869 (moderate). This is your pick – clean, fun, and not crowded.
Tuesday the 4th brings an absolute monster: an 18ft SSW swell with a 14-second period and energy at 18950 (very strong). That’s for experts only, and The Gap is sheltered, so it might be overwhelming. Wind is cross and fresh.
The other gem is Wednesday the 5th of August in the morning. A 8ft S swell, 13 seconds, with glassy conditions – dead calm wind from the WNW at 3 mph. Beautiful, clean surf for experienced surfers.
After that, the swell hangs around but the wind gets messy. Friday the 7th has a 10ft SSE swell with light offshore wind, clean but big. Then things fade into the second week with smaller, wind-affected days. The 12th of August has a clean 5ft ENE swell with a light offshore, a nice little runner.
Best bets: Monday the 3rd of August for a clean, solid session and Wednesday the 5th of August for those glassy, grinding lines. Skip the big, windy days unless you’re hardcore.
Stay wet,
Rusty
Short Range ForecastMostly dry. Very mild (max 13°C on Thu morning, min 7°C on Tue night). Winds increasing (calm on Tue afternoon, fresh winds from the NW by Fri morning). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Fri night. Very mild (max 12°C on Fri afternoon, min 4°C on Sun night). Winds decreasing (strong winds from the WNW on Fri afternoon, light winds from the WNW by Sun night). | |||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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) | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | E 11 | SE 15 | SSW 11 | SSW 11 | SSW 11 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 10 | SSW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1575 | 1306 | 953 | 834 | 624 | 505 | 383 | 314 | 158 | 114 | 109 | 2688 | 3316 | 3643 | 1944 | 1840 | 998 | 787 | 402 | 625 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:03PM1.23m | 4:35AM1.08m | 4:46PM1.21m | 5:20AM1.07m | 5:31PM1.18m | 6:07AM1.06m | 6:19PM1.17m | 6:55AM1.07m | 7:09PM1.17m | 7:42AM1.10m | 8:01PM1.17m | 8:30AM1.15m | 8:54PM1.20m | |||||||
Low Tide | 10:32PM0.29m | 10:35AM0.27m | 11:21PM0.28m | 11:21AM0.25m | 00:12AM0.26m | 12:07PM0.23m | 1:01AM0.23m | 12:54PM0.21m | 1:48AM0.21m | 1:44PM0.19m | 2:34AM0.20m | 2:36PM0.18m | ||||||||
 |  | | | |  | |  | | |  |  | | |  | | | | | | |
 | — | — | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — |
 | 5:16 | — | — | 5:17 | — | — | 5:17 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | 4 | 2 | 2 | 2 | — | — | — | — | — | 1 |
Temp °C | 9 | 8 | 11 | 12 | 9 | 13 | 13 | 12 | 12 | 12 | 10 | 7 | 6 | 7 | 9 | 9 | 8 | 9 | 11 | 10 |
Feels °C | 7 | 6 | 6 | 7 | 4 | 7 | 8 | 6 | 5 | 4 | 2 | -3 | -4 | -3 | -1 | -1 | 1 | 5 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | E 11 | E 10 | SE 16 | SE 15 | S 11 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 10 | SSW 16 |
| kJ | 1575 | 1306 | 953 | 834 | 624 | 505 | 383 | 314 | 158 | 114 | 56 | 198 | 176 | 2439 | 1405 | 1375 | 998 | 787 | 402 | 620 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SSW 10 | SSW 10 | SSW 15 | SSW 17 | SSW 15 | SSW 14 | SSW 13 | NE 7 | NE 7 | SE 15 | E 10 | E 10 | SE 14 | SE 13 | NE 15 | NE 15 | SSW 20 | SSW 10 | SSE 11 |
| kJ | 64 | 40 | 20 | 42 | 229 | 121 | 77 | 34 | 62 | 25 | 109 | 33 | 18 | 147 | 140 | 9 | 8 | 75 | 106 | 79 |
Swell 3 Height (m) Direction Period (s) | — | — | S 16 | SSW 10 | NE 4 | NE 5 | ENE 4 | NE 5 | SSW 12 | SE 15 | NE 7 | NE 18 | NE 17 | E 10 | NE 16 | S 19 | S 23 | NE 14 | SSW 19 | NE 13 |
| kJ | — | — | 5 | 11 | 12 | 1 | 2 | 7 | 14 | 59 | 7 | 12 | 12 | 2 | 10 | 7 | 11 | 7 | 72 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 3 | NNE 4 | NNW 3 | NNW 3 | NNW 3 | NW 3 | WNW 4 | SW 5 | SSW 11 | SSW 11 | SSW 11 | S 11 | S 10 | — | — | — | S 8 |
| kJ | — | — | — | 6 | 7 | 3 | 3 | 3 | 3 | 11 | 74 | 2688 | 3316 | 3643 | 1944 | 1840 | — | — | — | 625 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 16 | 25 | 28 | 28 | 28 | 37 | 143 | 160 | 158 | 273 | 1 | 167 | 244 | 0 | 0 | 16 | 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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