
Surf Forecasts:
Uchizuma surf forecast from 18 Jul 2026:
- Best quality surf: Friday 24 Jul, 12AM (local time) - 1ft (0.3m), 18s period, SE swell with offshore winds.
- Most powerful swell: Saturday 25 Jul, 3AM (local time) - 1.5ft (0.4m), 16s period, SE swell with 94 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 12AM (local time) - 1ft (0.3m), 18s period with SE swell.
Best Forecast Surf Conditions for Uchizuma this week:
The surf forecast for Uchizuma over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 24) at 12AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.3m and 10s. Another secondary swell of 0.3m and 2s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Uchizuma in the next 16 days are 0.4m 16s and forecast to arrive on Saturday (Jul 25) at 3AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Jul 24) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 24th Jul) | 1ft (0.3m) 18s |
| Best Surf | 12AM (Fri 24th Jul) | 1ft (0.3m) 18s |
| Most Powerful | 3AM (Sat 25th Jul) | 1.5ft (0.4m) 16s |
Table - best surf conditions forecast for Uchizuma over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on offer for Uchizuma over the next couple of weeks.
Straight up, we’re in for a long, slow start. The first recommendation doesn’t pop up until Friday the 24th of July, and even then it’s a pretty average affair. For the first five days from Sunday the 19th through Thursday the 23rd, the surf is tiny and mostly onshore or cross-onshore, so you’re better off leaving the board in the car. The combined energy is weak, sitting between 30 and 45 (moderate energy), with swell heights barely reaching 1 ft. It’s not worth paddling out for.
On Friday morning the 24th, we finally see something surfable. The swell from the SE is 1.0 ft with a period of 18 seconds – that’s a long period groundswell, but the energy is still low at 86 (weak energy). It’s glassy with a light ENE breeze, so the surface will be clean. However, the waves are small and ordinary. Not a standout, but it’s a start.
Saturday the 25th and Sunday the 26th see a slight bump in energy to 137 and 145 (moderate energy), with swell heights around 1 ft from the SE, period holding at 15-16 seconds. The wind picks up a bit of glass or cross-off on Sunday, giving cleaner conditions. Still, the waves are ordinary and small. No fireworks yet.
Now, here’s where it gets interesting. Monday the 27th of July, the morning session is the real standout. The swell jumps to 6 ft from the SE, with a very long period of 15 seconds. The combined energy rockets to 1527 (strong wave energy). The wind is glassy from the east, so the surface will be clean. This is excellent surf for experienced surfers. The water temperature is about average for the time of year, so no wetsuit surprises. The break is a bit inconsistent and Uchizuma is a beginner spot, so with that size and period, it’s really only for the crew who know what they’re doing. The swell direction is SE, which matches the optimum direction from the guidance, so it’s set up well. Expect crowds sometimes.
Tuesday the 28th gets big, but it’s too big. The afternoon sees 13 ft from the SE with a period of 16 seconds, and the energy is a massive 7465 (very strong). The wind is cross-onshore, making it messy. This is expert-only territory, and even then, the conditions are rough. Wednesday the 29th stays big at 10 ft, but the wind gets stronger and cross-onshore, with energy at 4024 (very strong). The surf quality drops off quickly. It’s more of a kite-surfing setup than a paddling one at this point.
From Thursday the 30th onwards, the swell tanks and the wind turns nasty. Thursday has 28-37 mph cross-onshore winds, blowing the waves out. The energy drops to 127 (weak). Friday the 31st and into the first days of August, the swell is tiny again, with short-period windswell from the SSW. The energy is moderate at best, and the conditions are poor. Nothing worth getting excited about.
So, the pick of the whole period is clearly Monday morning the 27th of July. It’s not perfect – the break is inconsistent and it’s a beginner spot handling a big groundswell – but for the experienced surfer, that glassy, long-period SE swell will produce some memorable waves. Everything else is either too small, too blown out, or too big. Keep an eye on that Monday morning window.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue afternoon. Warm (max 31°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Fri afternoon. Warm (max 32°C on Thu morning, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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) | SE 8 | ESE 9 | ESE 10 | SE 9 | ESE 9 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 11 | SE 9 | SE 10 | SE 18 | SE 18 | SE 18 | SE 16 |
Wave Graph | |||||||||||||||||||
24 | 17 | 18 | 20 | 31 | 12 | 12 | 11 | 23 | 22 | 22 | 11 | 11 | 15 | 25 | 50 | 49 | 49 | 42 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross | on | cross-on | cross-off | glassy | cross-on | cross-off | glassy | cross-on | cross-off | glassy | on | off | glassy | on | glassy |
High Tide | 9:08PM1.72m | 8:52AM1.63m | 9:39PM1.67m | 9:44AM1.49m | 10:10PM1.62m | 10:46AM1.35m | 10:42PM1.56m | 12:10PM1.25m | 11:21PM1.50m | 2:11PM1.24m | 00:16AM1.45m | 3:54PM1.32m | 1:31AM1.43m | ||||||
Low Tide | 3:02AM0.69m | 3:11PM0.45m | 3:49AM0.67m | 3:45PM0.65m | 4:40AM0.66m | 4:20PM0.84m | 5:41AM0.66m | 5:01PM1.01m | 6:53AM0.64m | 6:12PM1.14m | 8:11AM0.59m | 8:12PM1.20m | |||||||
— | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | |
7:12 | — | 7:12 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | |
mm | 2 | — | — | — | — | 1 | — | — | 3 | 1 | 1 | 4 | 1 | — | 1 | — | 1 | 4 | 1 |
Temp °C | 27 | 30 | 30 | 27 | 31 | 30 | 27 | 30 | 30 | 28 | 30 | 31 | 28 | 32 | 31 | 28 | 31 | 31 | 28 |
Feels °C | 32 | 33 | 34 | 32 | 35 | 34 | 32 | 35 | 35 | 33 | 36 | 37 | 33 | 37 | 36 | 33 | 35 | 36 | 33 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 5 | SE 5 | SE 4 | ESE 9 | ESE 7 | ESE 7 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 11 | SE 9 | SE 10 | SE 10 | SE 10 | SE 9 | SE 11 |
24 | 7 | 6 | 4 | 31 | 10 | 9 | 11 | 23 | 22 | 22 | 11 | 11 | 14 | 25 | 16 | 32 | 14 | 42 | |
Swell 2 Height (m) Direction Period (s) | E 9 | ESE 9 | ESE 10 | ESE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SSE 8 | SE 8 | E 10 | SE 19 | SE 18 | SE 18 | SE 18 | SE 16 |
7 | 17 | 18 | 15 | 7 | 7 | 7 | 7 | 6 | 6 | 9 | 6 | 2 | 8 | 15 | 50 | 49 | 49 | 42 | |
Swell 3 Height (m) Direction Period (s) | E 8 | SE 8 | SE 8 | SE 9 | ESE 12 | ESE 11 | ESE 11 | ESE 6 | ESE 6 | ESE 6 | SSW 3 | SE 6 | SE 11 | SE 20 | S 8 | SSE 8 | SSW 7 | ESE 11 | ESE 4 |
5 | 10 | 9 | 20 | 14 | 12 | 12 | 4 | 4 | 4 | 1 | 1 | 4 | 15 | 5 | 7 | 5 | 13 | 1 | |
Wind waves Height (m) Direction Period (s) | SE 3 | — | — | SSW 5 | — | S 2 | SSW 3 | — | SSW 3 | SW 3 | SW 3 | SSW 3 | SW 3 | — | NNE 3 | SW 2 | N 3 | E 4 | ESE 3 |
4 | — | — | 3 | — | 1 | 2 | — | 1 | 3 | 3 | 1 | 3 | — | 2 | 1 | 1 | 2 | 4 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 290 | 954 | 293 | 293 | 968 | 0 | 0 | 11 | 0 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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Information about the Uchizuma Surf forecast
The above surf forecast table for Uchizuma provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Uchizuma can be found by selecting the local surf guide option on the grey menu. Our Uchizuma 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 (Uchizuma) 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 Uchizuma 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 Shikoku? If you are looking for accommodation near Uchizuma, camping, hotels and holiday cottages in Shikoku, consider staying in Anan which is 40 km (25 miles) away. Other places in and around Shikoku where you can find information about places to rent, and car hire include Muroto which is 45 km (28 miles) away, Komatsushima, Aki and Kamojima.










