
Surf Forecasts:
Castlepoint - The Gap surf forecast from 2 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 12AM (local time) - 7ft (2.1m), 9s period, S swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 6PM (local time) - 10ft (3.0m), 10s period, SSW swell with 1,962 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 9PM (local time) - 3.5ft (1.0m), 11s 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 Thursday (Sep 03) at 9PM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.1m and 9s. 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 3.0m 10s and forecast to arrive on Monday (Sep 07) at 6PM. Winds are predicted to be cross-shore 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 (Sep 05) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 3rd Sep) | 3.5ft (1.0m) 11s |
| Best Surf | 12AM (Tue 8th Sep) | 7ft (2.1m) 9s |
| Most Powerful | 6PM (Mon 7th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Castlepoint - The Gap over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve got a long-range look at Castlepoint - The Gap, and it’s a bit of a slow burn, but there’s a couple of proper gems hiding in the second week if you can wait.
The overall pattern is quiet for the first few days, with a few small, clean windows but nothing that’s really gonna get the heart pumping. The water is sitting at 53°, which is a touch cooler than usual for this time of year, so you’ll want a decent wetsuit.
Thursday morning, the 3rd of September, is our first nod. It’s a clean 5ft swell from the S, with a solid 12-second period, and a fresh offshore from the WNW making it look tidy. The combined energy is moderate (698), so there’s a bit of push, but the report says it’s marginal. It’s a beginner-friendly spot and pretty consistent, but don’t expect fireworks.
Friday the 4th through to Sunday the 6th see the swell drop right off, with tiny waves under 2ft. It’s clean, but there’s just not enough to get excited about. A few days of flatness.
Monday the 7th brings a jump in size, but it’s a messy one. A 7ft SSW swell on the morning gets chopped up by a 19 mph cross-offshore wind, and by the afternoon it’s a 10ft beast with a 10-second period and a cross-shore wind. The wave energy is strong (1669), but the conditions are poor. This one is strictly for the experts if anyone’s mad enough.
Tuesday the 8th and Wednesday the 9th are back to small, clean, and ordinary. Not worth rushing for.
Now, the first real standout is Friday the 11th of September. The morning session delivers a 6ft SSW swell with a 9-second period, clean with a moderate offshore from the NW. The combined energy is strong (916), and the report says “expect good surf conditions.” This is the pick of the first week.
Saturday the 12th of September is a monster day, but it’s a write-off for most. The afternoon sees a 15ft SSW swell with a 16-second period and a strong breeze. The energy reading is massive (14741), but the report says it’s predicted to be too big for this break. Only the absolute lunatics with big-wave guns need apply.
The best of the bunch comes on Wednesday the 16th of September. The afternoon is looking absolutely mint. We’ve got a 8ft S swell with a 14-second period, a clean offshore from the WNW at 16 mph, and excellent surf conditions for experienced surfers. The energy is very strong (2419). This is a proper session for the crew that knows what they’re doing. It’s a bit of a wait, but it’s the one to circle on the calendar.
The following morning, Thursday the 17th, is also a beauty. A 6ft S swell, 12-second period, gentle offshore, and very good surf conditions. Another solid option.
Overall, hold out for the 11th, and definitely the 16th. The rest is a mix of small and clean, or big and messy. Keep an eye on that long-range forecast.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri morning. Very mild (max 17°C on Thu afternoon, min 11°C on Fri night). Winds decreasing (strong winds from the WNW on Fri night, light winds from the WNW by Sat morning). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sun night. Very mild (max 16°C on Sun afternoon, min 5°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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) | S 12 | S 12 | S 11 | S 10 | S 10 | SSW 15 | SSW 8 | SSW 8 | SSW 10 | SSW 17 | SSW 17 | SSW 17 | SSW 7 | SSW 10 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSW 9 |
Wave Graph | |||||||||||||||||||||
690 | 396 | 191 | 96 | 45 | 22 | 39 | 55 | 125 | 229 | 164 | 56 | 528 | 1652 | 732 | 463 | 322 | 181 | 161 | 138 | 49 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross | glassy | cross-off | off | cross-off | cross-off | off | off |
High Tide | 9:42AM1.37m | 10:15PM1.30m | 10:31AM1.42m | 11:03PM1.32m | 11:23AM1.45m | 11:52PM1.32m | 12:17PM1.46m | 00:45AM1.30m | 1:11PM1.46m | 1:41AM1.28m | 2:07PM1.45m | 2:39AM1.26m | 3:03PM1.43m | ||||||||
Low Tide | 4:10PM0.07m | 4:30AM0.08m | 5:01PM0.03m | 5:19AM0.03m | 5:51PM-0.02m | 6:07AM-0.01m | 6:40PM-0.05m | 6:56AM-0.05m | 7:30PM-0.06m | 7:48AM-0.07m | 8:22PM-0.05m | 8:45AM-0.07m | 9:18PM-0.01m | ||||||||
6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | |
— | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | |
mm | — | — | — | 1 | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 15 | 15 | 16 | 12 | 15 | 15 | 12 | 13 | 16 | 15 | 10 | 10 | 9 | 12 | 14 | 9 | 14 | 14 | 13 |
Feels °C | 10 | 13 | 11 | 8 | 9 | 3 | 12 | 9 | 5 | 7 | 11 | 11 | 3 | 3 | 5 | 7 | 8 | 2 | 9 | 7 | 7 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 10 | S 10 | SW 8 | SSW 8 | SSW 8 | SSW 10 | SSW 17 | SSW 17 | SW 11 | NE 8 | NE 8 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSW 9 |
690 | 396 | 191 | 96 | 45 | 15 | 39 | 55 | 125 | 229 | 164 | 31 | 59 | 17 | 732 | 463 | 322 | 181 | 161 | 138 | 49 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | NE 9 | NE 10 | NE 10 | NE 6 | S 9 | SSW 15 | SSW 14 | SSE 9 | SE 9 | NE 5 | SSW 17 | SSW 16 | SW 16 | S 15 | NE 10 | NE 4 | SSW 8 | SSW 9 | SSW 8 | SE 8 |
4 | 3 | 4 | 4 | 8 | 15 | 21 | 20 | 9 | 3 | 1 | 56 | 25 | 64 | 4 | 4 | 2 | 24 | 32 | 44 | 33 | |
Swell 3 Height (m) Direction Period (s) | NE 10 | SE 10 | SE 11 | S 18 | SSW 16 | SSW 15 | NE 7 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | — | — | NE 16 | S 15 | S 13 | NE 4 | NE 6 | NNE 5 | SE 10 |
4 | 4 | 5 | 6 | 25 | 22 | 2 | 4 | 4 | 4 | 4 | 4 | — | — | 10 | 4 | 4 | 1 | 6 | 3 | 37 | |
Wind waves Height (m) Direction Period (s) | W 3 | WNW 3 | NW 3 | NW 3 | W 4 | WSW 4 | WNW 3 | W 3 | — | NNW 2 | NNW 3 | NE 5 | SSW 7 | SSW 10 | — | N 3 | NW 2 | WNW 3 | NW 3 | NNW 3 | WNW 4 |
5 | 5 | 3 | 5 | 18 | 25 | 1 | 4 | — | 1 | 2 | 20 | 528 | 1652 | — | 7 | 1 | 6 | 3 | 3 | 15 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 135 | 28 | 1 | 135 | 143 | 335 | 4 | 16 | 74 | 28 | 28 | 16 | 137 | 102 | 0 | 16 | 0 | 99 | 0 | 16 | 135 |
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.










