
Surf Forecasts:
Uchizuma surf forecast from 3 Jul 2026:
- Best quality surf: Thursday 9 Jul, 9PM (local time) - 11ft (3.5m), 16s period, S swell with cross-onshore winds.
- Most powerful swell: Friday 10 Jul, 9AM (local time) - 11ft (3.5m), 17s period, S swell with 7,689 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 12AM (local time) - 3ft (0.9m), 7s period with SSW 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 Sunday (Jul 05) at 12AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.5m and 4s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Uchizuma in the next 16 days are 3.5m 17s and forecast to arrive on Friday (Jul 10) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 5s period and expected on Sunday (Jul 05) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 5th Jul) | 3ft (0.9m) 7s |
| Best Surf | 9PM (Thu 9th Jul) | 11ft (3.5m) 16s |
| Most Powerful | 9AM (Fri 10th Jul) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Uchizuma over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s have a look at what Uchizuma has in store for us over the next couple of weeks.
The water temp is sitting at 76°, which is a touch below the average for this time of year, but nothing wild. We’re looking at a pretty flat start, but there’s a sneaky run of bigger, more powerful swell coming in the middle of the week. The first few days are a write-off for a decent paddle, so don’t rush out just yet.
Friday 3rd through Sunday 5th are pretty much a no-go. Tiny, weak waves—around 1 ft to 3 ft—with poor surf conditions. The energy is low (28 to 81), and the wind is glassy or light, but there’s just nothing to push you into. Uchizuma is inconsistent anyway, and this period is a classic dead spell.
Monday 6th sees a change. The morning kicks off with a 5 ft swell from the ESE, with a short period of 6 seconds, so it’ll be a bit weak and messy. The energy jumps to 258 (moderate), but the conditions are still just ordinary. The Monday afternoon is where it gets interesting. The swell drops to 3 ft, but the period jumps to 14 seconds—that’s proper groundswell energy. The wind goes glassy, and the energy hits 305. It’s a clean, glassy setup, but the swell is small, so it’s a fun, longboard-only session.
Tuesday 7th morning has 4 ft of 12-second SE swell, with offshore wind and energy of 869. The conditions are marginal, but there’s a bit of push. The afternoon sees the swell building to 6 ft with a 17-second period—that’s a very long period groundswell—and energy hits 2082. The wind is cross-onshore though, which will mess up the face. Still, for a point break or reef, that long period could shape up nicely.
The standout is Wednesday 8th and Thursday 9th. The swell is pumping 10 ft with a period of 16-17 seconds from the SE, and the energy is massive—6671 and 7472 (very strong). The wind is light and onshore or cross-onshore, but with that size and power, Uchizuma will be a big, powerful beast. This is expert territory only. Over 8 ft, it’s strictly for the experienced crew. The long period suits a point or reef setup, but this is a beach/reef break, so expect it to be a heavy, fast, and challenging. It’s a true standout for the brave.
Friday 10th and Saturday 11th are even bigger at 12 ft, but the comments say the swell is predicted to be too big for this break, and the wind is onshore or glassy. The energy is still through the roof (5393 to 7727), but the quality drops off. It’s just too much water moving around.
Sunday 12th is the next highlight. The swell drops to a much more manageable 7 ft from the SSW, with a 14-second period, and the wind is glassy. Energy is 1763 (strong). The morning is labelled as “excellent surf conditions for experienced surfers.” This is the best of the second week—clean, decent size, and good shape. The afternoon sees 5 ft with glassy wind and 13-second period, which is “very good.”
Monday 13th has 4 ft from the SSW with 11-second period and glassy wind. It’s a nice, clean, solid day, but the energy is dropping (469). The rest of the week from Tuesday 14th onward fades fast. The swell drops below 3 ft, the wind turns cross-onshore, and the energy plummets to below 200. It’s back to flat, poor conditions.
So, to sum it up: the Wednesday 8th and Thursday 9th are the big, heavy, expert-only standouts if you’re brave. The Sunday 12th is the cleanest, most fun day for the experienced surfer, with glassy conditions and a 7 ft SSW groundswell. Don’t bother with the first weekend or the second week after Monday.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Sat morning. Warm (max 27°C on Sun afternoon, min 23°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Tue night. Warm (max 26°C on Mon afternoon, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Fri 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | |||||||||||||||
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 9 | SE 9 | ESE 9 | SE 5 | SSW 7 | SSW 7 | SSW 7 | SE 5 | ESE 6 | SE 14 | SE 13 | SE 18 | SE 17 | SE 16 | SE 16 | SE 17 | SE 16 | SSE 16 | SSE 16 | SSE 16 | S 17 |
Wave Graph | |||||||||||||||||||||
16 | 21 | 16 | 42 | 62 | 56 | 34 | 110 | 126 | 238 | 326 | 421 | 2007 | 3059 | 4367 | 5364 | 3794 | 4821 | 5036 | 4528 | 7689 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross-on | cross-off | glassy | cross-on | glassy | glassy | glassy | cross-on | on | cross-on | on | cross-on | on | on | on | on | glassy | on |
High Tide | 8:41PM1.65m | 7:45AM1.65m | 9:11PM1.64m | 8:27AM1.59m | 9:43PM1.63m | 9:16AM1.51m | 10:17PM1.62m | 10:17AM1.42m | 10:55PM1.60m | 11:38AM1.36m | 11:41PM1.58m | 1:20PM1.35m | 00:36AM1.58m | ||||||||
Low Tide | 2:11AM0.89m | 2:28PM0.28m | 2:51AM0.86m | 3:02PM0.38m | 3:36AM0.81m | 3:39PM0.51m | 4:28AM0.75m | 4:23PM0.66m | 5:30AM0.68m | 5:17PM0.83m | 6:40AM0.57m | 6:30PM0.98m | 7:54AM0.44m | ||||||||
— | — | 4:56 | — | — | 4:56 | — | — | 4:56 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | |
7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | 7:15 | |
mm | — | 2 | 6 | 5 | — | — | 1 | 5 | 4 | 2 | — | 1 | 1 | 3 | 2 | 1 | — | — | — | — | — |
Temp °C | 25 | 24 | 23 | 24 | 24 | 26 | 27 | 25 | 26 | 26 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 24 | 28 |
Feels °C | 28 | 28 | 27 | 27 | 28 | 30 | 31 | 30 | 31 | 31 | 28 | 29 | 29 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SE 9 | SSW 5 | ESE 9 | SSW 7 | SSW 7 | SSW 7 | SW 6 | SE 15 | ESE 5 | SE 13 | SE 12 | SE 17 | SE 16 | SE 16 | SE 17 | SE 16 | SSE 16 | SSE 16 | SSE 16 | S 17 |
10 | 21 | 5 | 8 | 62 | 56 | 34 | 5 | 106 | 51 | 326 | 421 | 2007 | 3059 | 4367 | 5364 | 3794 | 4821 | 5036 | 4528 | 7689 | |
Swell 2 Height (m) Direction Period (s) | ESE 9 | S 5 | ESE 9 | SE 9 | E 4 | SE 10 | SE 9 | SE 16 | SSW 6 | SE 14 | SSW 6 | SE 18 | SSW 6 | SW 6 | SSE 18 | E 9 | SSE 19 | E 8 | S 17 | S 18 | E 9 |
16 | 5 | 16 | 3 | 9 | 16 | 20 | 10 | 16 | 238 | 27 | 409 | 22 | 16 | 2237 | 25 | 1117 | 47 | 2404 | 2351 | 38 | |
Swell 3 Height (m) Direction Period (s) | NE 3 | SSW 6 | SE 9 | ESE 12 | SE 9 | ESE 9 | — | S 8 | ESE 10 | SSW 6 | SE 17 | SSW 7 | — | — | — | — | E 5 | — | E 8 | — | — |
2 | 4 | 12 | 13 | 12 | 7 | — | 1 | 10 | 16 | 106 | 30 | — | — | — | — | 53 | — | 32 | — | — | |
Wind waves Height (m) Direction Period (s) | NNE 4 | — | ESE 3 | SE 5 | — | ENE 3 | ENE 5 | SE 5 | ESE 6 | — | ESE 5 | E 4 | E 7 | ESE 6 | E 6 | E 6 | — | — | — | — | — |
5 | — | 1 | 42 | — | 2 | 2 | 110 | 126 | — | 44 | 9 | 53 | 48 | 67 | 80 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 293 | 31 | 340 | 11 | 0 | 0 | 19 | 0 | 0 | 0 | 19 | 19 | 11 | 19 | 19 | 11 | 11 | 11 | 11 | 0 | 5 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











