
Surf Forecasts:
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 Type | Time (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 Powerful | 12AM (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 ForecastMostly 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 SummaryMostly 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 | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | ESE 11 | E 13 | ESE 15 | ESE 16 | ESE 16 | ESE 16 | S 15 | ESE 15 | ESE 14 | S 23 | S 20 | SSW 18 | SSW 16 | S 15 | S 15 | SSW 15 | S 18 | S 14 | S 13 | S 12 | S 12 |
Wave Graph | |||||||||||||||||||||
43 | 86 | 167 | 298 | 635 | 892 | 1216 | 818 | 682 | 2343 | 3134 | 2042 | 1365 | 1332 | 2147 | 1641 | 1197 | 1442 | 1001 | 660 | 396 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | ||||||||
— | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | |
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 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | E 13 | ESE 15 | ESE 16 | ESE 16 | ESE 16 | S 15 | ESE 15 | ESE 14 | S 23 | S 20 | SSW 18 | SSW 16 | S 15 | S 15 | SSW 15 | S 13 | S 14 | S 13 | S 12 | S 12 |
43 | 86 | 167 | 298 | 635 | 892 | 1216 | 818 | 682 | 2343 | 3134 | 2042 | 1365 | 1332 | 2147 | 1641 | 1034 | 1442 | 1001 | 660 | 396 | |
Swell 2 Height (m) Direction Period (s) | SSW 19 | SSW 18 | SSW 14 | SSW 16 | S 6 | S 10 | ESE 16 | SSW 13 | SSW 11 | ESE 14 | SE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | S 18 | S 18 | ESE 11 | ESE 11 | ESE 11 | SE 11 |
36 | 33 | 19 | 25 | 22 | 313 | 909 | 476 | 297 | 508 | 412 | 295 | 290 | 187 | 164 | 966 | 1197 | 70 | 69 | 47 | 30 | |
Swell 3 Height (m) Direction Period (s) | NE 5 | SSW 15 | S 17 | E 11 | SSW 16 | S 15 | — | — | SSW 19 | SSW 10 | — | S 6 | S 6 | S 20 | — | ESE 12 | ESE 11 | — | — | — | — |
1 | 21 | 24 | 2 | 48 | 113 | — | — | 73 | 131 | — | 32 | 46 | 124 | — | 125 | 115 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | WNW 3 | WSW 3 | — | — | — | NNW 3 | NNW 4 | — | — | — | — | — | — | — | — | — | — | — | — |
— | 3 | 5 | 4 | — | — | — | 5 | 18 | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 0 | 74 | 1 | 0 | 0 | 0 | 0 | 16 | 0 | 1 | 99 | 1 | 0 | 0 | 0 | 0 | 0 | 37 | 0 | 0 |
Best forecast wave conditions in The Wairarapa | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











