
Surf Forecasts:
Uchizuma surf forecast from 12 Jul 2026:
- Best quality surf: Monday 13 Jul, 3AM (local time) - 6ft (1.8m), 12s period, SSW swell with glassy winds.
- Most powerful swell: Monday 13 Jul, 3AM (local time) - 6ft (1.8m), 12s period, SSW swell with 901 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 3AM (local time) - 6ft (1.8m), 12s 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 Monday (Jul 13) at 3AM. The primary swell is predicted to be 1.8m and 12s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Uchizuma in the next 16 days are 1.8m 12s and forecast to arrive on Monday (Jul 13) 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 0.5m 3s period and expected on Tuesday (Jul 14) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 13th Jul) | 6ft (1.8m) 12s |
| Best Surf | 3AM (Mon 13th Jul) | 6ft (1.8m) 12s |
| Most Powerful | 3AM (Mon 13th Jul) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Uchizuma over the next 16 days.
Alright folks, Rusty here. Let’s have a look at what’s on the cards for Uchizuma over the next couple of weeks.
Right off the bat, we’ve got a sweet little window to kick things off. Monday morning, July 13th, is the pick of the early days. We’re looking at a solid 5ft SSW swell ticking over with a 12-second period, and the combined energy is sitting at a solid 707 (moderate). The wind is glassy, dead calm from the SE at just 3 mph. That’s about as clean as it gets. The water temp is doing its usual thing for this time of year, nothing wild to report. Uchizuma can be a bit inconsistent, and the crowds are only sometimes an issue, so Monday morning is your best bet for a proper session with some decent power.
Monday afternoon drops a little to 5ft, still glassy, still good, but the energy dips to 471. Still a fun session, just not quite as punchy.
Tuesday morning, July 14th, the swell backs off to 3ft, but it’s still glassy. You’ll get a wave, but it’s ordinary. Tuesday afternoon gets onshore, and from there we hit a bit of a flat spell. Wednesday and Thursday are small and weak, with the energy dropping below 110. Friday morning is tiny, and by Friday afternoon a long-period 16-second ESE swell appears at 3ft, but the wind is cross-onshore, making it a messy proposition. That whole stretch from Tuesday afternoon through to Saturday morning, July 18th, is pretty marginal. Not worth paddling out for.
Saturday and Sunday, July 18th-19th, see a bit more size but the wind is mostly onshore or cross-onshore, so the quality is poor. The energy picks up a bit, but it’s not clean.
Now, here’s the standout to keep an eye on. Monday morning, July 20th, brings a 5ft ESE swell with an 11-second period and glassy conditions. The energy is a solid 512 (moderate). That’s a very clean, fun-sized wave for Uchizuma. The wind is glassy, so it’ll be smooth. Tuesday morning, July 21st, is also looking clean with 4ft ESE swell and glassy wind, energy at 313. That’s another good one. Wednesday morning, July 22nd, is still glassy with 3ft, but it’s a bit smaller.
After that, the second week drops off. Thursday, July 23rd, and Friday, July 24th, are small again, with energy under 150. The weekend of July 25th-26th has some very long-period 16-second swells, but they’re tiny at 1ft. Long period and small size means long waits between sets—more of a novelty than a proper session. The wind is glassy on Saturday morning, but the wave just isn’t there.
The last day, Tuesday, July 28th, gives you a tiny 2ft S swell with a clean cross-offshore wind, but it’s barely surfable.
So, the long and short of it: Monday, July 13th morning is the absolute standout. Glassy, 5ft, nice and clean. Monday, July 20th morning is the next best bet, with 5ft and glassy conditions. Everything else is either flat, windy, or just too small to get excited about. The gap between July 14th afternoon and July 20th morning is a long stretch of mostly poor conditions, so don’t plan a trip around that.
Rusty out.
Short Range ForecastMostly dry. Warm (max 32°C on Tue morning, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Fri night. Warm (max 30°C on Thu morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sun 19 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 7 | SSW 8 | ESE 10 | ESE 16 | ESE 14 | ESE 12 | SE 10 | ESE 10 | ESE 9 | SE 11 |
Wave Graph | |||||||||||||||||||||
1256 | 683 | 447 | 292 | 209 | 166 | 86 | 64 | 61 | 59 | 69 | 48 | 19 | 18 | 412 | 779 | 475 | 200 | 226 | 124 | 176 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | off | glassy | on | cross-off | cross | on | glassy | glassy | glassy | glassy | cross | cross-on | cross-on | cross-on | on | cross-off | glassy | on |
High Tide | 3:49AM1.73m | 6:04PM1.75m | 4:46AM1.81m | 6:47PM1.80m | 5:39AM1.86m | 7:26PM1.81m | 6:28AM1.88m | 8:02PM1.79m | 7:16AM1.84m | 8:36PM1.76m | 8:04AM1.75m | 9:08PM1.72m | 8:52AM1.63m | ||||||||
Low Tide | 10:28PM1.08m | 10:59AM-0.01m | 11:22PM1.02m | 11:49AM-0.08m | 00:08AM0.95m | 12:35PM-0.09m | 00:52AM0.87m | 1:18PM-0.04m | 1:35AM0.79m | 1:58PM0.09m | 2:18AM0.73m | 2:36PM0.26m | 3:02AM0.69m | 3:11PM0.45m | |||||||
— | 5:01 | — | — | 5:01 | — | — | 5:01 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | |
7:14 | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:12 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 4 | 1 | — | — | — | — |
Temp °C | 27 | 31 | 31 | 29 | 32 | 32 | 28 | 32 | 32 | 28 | 30 | 30 | 29 | 30 | 30 | 27 | 28 | 29 | 25 | 28 | 28 |
Feels °C | 32 | 36 | 36 | 34 | 36 | 37 | 33 | 36 | 36 | 33 | 35 | 35 | 34 | 34 | 35 | 33 | 31 | 32 | 29 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 7 | SSW 8 | SSW 7 | ESE 16 | ESE 14 | ESE 12 | SE 10 | ESE 10 | ESE 9 | SE 11 |
1256 | 683 | 447 | 292 | 209 | 166 | 86 | 64 | 61 | 59 | 69 | 48 | 19 | 18 | 412 | 779 | 475 | 200 | 226 | 124 | 176 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | ESE 10 | SE 11 | SE 10 | SE 10 | ESE 10 | ESE 10 | SSW 7 | SSE 7 | SE 4 | ESE 11 | SE 8 | ESE 12 | ESE 8 |
23 | 17 | 17 | 21 | 36 | 36 | 31 | 29 | 42 | 18 | 14 | 15 | 18 | 18 | 18 | 21 | 9 | 123 | 3 | 83 | 61 | |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 13 | SE 13 | E 9 | E 9 | — | E 9 | E 10 | S 8 | ESE 10 | ESE 10 | ESE 9 | SE 10 | SE 9 | SE 9 | SSW 7 | SSW 7 | SE 4 | SSW 7 | SE 10 | S 7 |
20 | 7 | 7 | 6 | 6 | — | 15 | 17 | 1 | 18 | 19 | 17 | 15 | 14 | 14 | 4 | 5 | 6 | 5 | 27 | 1 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | N 3 | NNE 3 | — | — | — | — | — | — | — | — | — | SE 4 | — | — | — | — | ESE 4 |
— | — | — | — | 5 | 2 | — | — | — | — | — | — | — | — | — | 14 | — | — | — | — | 12 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 40 | 19 | 0 | 0 | 0 | 2 | 21 | 19 | 11 | 19 | 19 | 0 | 0 | 19 |
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.











