
Surf Forecasts:
Aoshima surf forecast from 18 Jul 2026:
- Best quality surf: Sunday 19 Jul, 6AM (local time) - 2ft (0.6m), 9s period, E swell with glassy winds.
- Most powerful swell: Wednesday 22 Jul, 9AM (local time) - 2.5ft (0.7m), 11s period, E swell with 108 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 6AM (local time) - 2ft (0.6m), 9s period with E swell.
Best Forecast Surf Conditions for Aoshima this week:
The surf forecast for Aoshima over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 19) at 6AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Aoshima in the next 16 days are 0.7m 11s and forecast to arrive on Wednesday (Jul 22) at 9AM. 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 Sunday (Jul 19) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 19th Jul) | 2ft (0.6m) 9s |
| Best Surf | 6AM (Sun 19th Jul) | 2ft (0.6m) 9s |
| Most Powerful | 9AM (Wed 22nd Jul) | 2.5ft (0.7m) 11s |
Table - best surf conditions forecast for Aoshima over the next 16 days.
The Lowdown
G’day, this is Rusty. Let’s be straight with you – the next week and a bit at Aoshima is a tough run. We’ve got some tiny, ordinary waves and a lot of cross-shore chop, so don’t get your hopes up. The real story starts to show itself around Thursday the 30th of July, when a proper clean-up sets in. Before that, we’re looking at a long, dull stretch.
From Sunday the 19th right through to Saturday the 26th of July, it’s mostly knee-high dribble. Swell hangs around 1ft to 2ft from the east, with weak wave energy (69 to 111). The mornings are glassy, which is nice, but the afternoons get chewed up by a southerly breeze. The water temp is sitting at 82°, which is about normal for this time of year – nothing to write home about. The best of this early period is Tuesday the 22nd of July morning, when a little bump in period to 11 seconds pushes the energy to 111, but it’s still just surfable, not exciting.
Sunday the 27th of July morning sees a jump in period to 14 seconds, and energy climbs to 199, but the wind is cross-shore, so it’s messy. The swell direction starts swinging more southerly, and by Monday the 28th of July, we’ve got a solid 6ft to 7ft south-east swell with a very long 15-second period. That’s proper groundswell, but the wind is cross-onshore to onshore, gusting 12 mph, and the energy is screaming (up to 2111). It’s a messy, blown-out mess for the crowd – only experts would even look at it. Tuesday the 29th of July gets even bigger, with 8ft and 8ft swells and fresh cross-onshore winds up to 22 mph. That’s kitesurfing territory, not paddle surfing.
Then, finally, Thursday the 30th of July morning turns it around. The wind swings to a light westerly-northwesterly cross-offshore, the swell drops to a clean 6ft from the east-southeast, with a 12-second period and moderate energy (935). The outlook says “expect very good surf conditions” – and that’s the standout. Aoshima reef will be clean, with proper, peeling waves. The afternoon holds at 5ft, still cross-offshore, still clean. That’s your session.
Friday the 31st of July morning is glassy, with a 4ft east swell and 11-second period, energy at 443. It’s good, but not as punchy as the day before. The afternoon turns onshore and messy again.
The first week of August looks like a write-off. Saturday the 1st of August morning has a 3ft east swell, but the wind is a strong cross-onshore at 16 mph, and by afternoon it’s a near gale at 31 mph. Sunday the 2nd of August is onshore and stormy with 3ft to 3ft swells but very long 15-second periods – the energy is high (602 to 934), but the wind is howling. Monday the 3rd of August brings another 6ft to 6ft south-east swell with a very long 16-second period, but it’s cross-onshore and choppy again. No good for a paddle.
So, the real standout is Thursday the 30th of July. That’s the one to circle. The swell is solid, the wind is clean, and the reef will be working. The rest is either too small, too windy, or both. Hang in there.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sun afternoon, min 27°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed morning. Warm (max 30°C on Fri afternoon, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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) | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SE 11 | SE 11 | SE 10 |
Wave Graph | |||||||||||||||||||||
56 | 58 | 87 | 65 | 81 | 80 | 78 | 56 | 53 | 108 | 102 | 72 | 71 | 69 | 47 | 48 | 45 | 44 | 30 | 29 | 25 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | glassy | glassy | cross | glassy | glassy | cross | glassy | glassy | cross | cross-off | cross-on | cross-on | cross-off | glassy | cross-on | glassy | on | cross | glassy |
High Tide | 9:31PM2.01m | 9:27AM1.84m | 10:04PM1.96m | 10:26AM1.70m | 10:41PM1.91m | 11:45AM1.58m | 11:25PM1.86m | 1:35PM1.54m | 00:22AM1.82m | 3:27PM1.63m | 1:33AM1.81m | 4:37PM1.77m | 2:44AM1.85m | ||||||||
Low Tide | 3:01PM0.49m | 3:35AM0.83m | 3:38PM0.68m | 4:26AM0.80m | 4:17PM0.90m | 5:27AM0.77m | 5:06PM1.11m | 6:41AM0.72m | 6:17PM1.29m | 8:00AM0.63m | 8:00PM1.39m | 9:11AM0.49m | 9:32PM1.39m | ||||||||
5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | |
— | 7:19 | — | — | 7:19 | — | — | 7:17 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — | — | 2 | 1 |
Temp °C | 29 | 30 | 29 | 30 | 30 | 28 | 29 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 30 | 29 | 29 | 30 | 28 |
Feels °C | 34 | 34 | 34 | 33 | 33 | 33 | 32 | 33 | 33 | 34 | 33 | 32 | 34 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 33 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | SE 11 | SE 10 |
56 | 58 | 87 | 65 | 81 | 80 | 78 | 56 | 53 | 108 | 102 | 72 | 71 | 69 | 47 | 48 | 45 | 44 | 26 | 29 | 25 | |
Swell 2 Height (m) Direction Period (s) | SE 8 | SSE 8 | S 4 | SSE 8 | SSE 8 | SSE 8 | SE 8 | E 14 | E 12 | SE 8 | SE 8 | S 7 | S 7 | SE 10 | S 7 | SE 9 | ESE 18 | SE 11 | SE 11 | E 9 | E 9 |
10 | 6 | 2 | 7 | 7 | 7 | 3 | 14 | 44 | 2 | 2 | 4 | 4 | 4 | 4 | 13 | 31 | 30 | 30 | 26 | 25 | |
Swell 3 Height (m) Direction Period (s) | S 7 | SE 8 | S 6 | E 5 | S 7 | S 7 | S 7 | SE 8 | SE 8 | S 7 | S 7 | SE 7 | SE 20 | S 7 | SE 8 | ESE 18 | SE 9 | ESE 17 | ESE 16 | ESE 16 | ESE 16 |
3 | 2 | 1 | 2 | 1 | 1 | 1 | 3 | 3 | 1 | 1 | 2 | 15 | 4 | 3 | 31 | 3 | 27 | 26 | 25 | 24 | |
Wind waves Height (m) Direction Period (s) | — | S 2 | SSW 4 | — | — | — | — | — | SSW 2 | — | — | SSW 3 | — | — | — | — | SE 7 | — | — | — | SW 6 |
— | 1 | 8 | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | 2 | — | — | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 312 | 0 | 0 | 312 | 0 | 0 | 702 | 0 | 0 | 19 | 0 | 2 | 631 | 0 | 0 | 117 | 0 | 23 | 117 | 0 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Aoshima Surf forecast
The above surf forecast table for Aoshima provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Aoshima can be found by selecting the local surf guide option on the grey menu. Our Aoshima 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 (Aoshima) 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 Aoshima 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.
Aoshima is 14 km (9 miles) from Miyazaki-shi. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Miyazaki-shi. Miyazaki-shi has rooms for a wide range of budgets as well as car hire and transport links.










