
Surf Forecasts:
Medewi surf forecast from 15 Sep 2026:
- Best quality surf: Thursday 17 Sep, 11PM (local time) - 4.5ft (1.4m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 11AM (local time) - 5ft (1.5m), 14s period, SSW swell with 943 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 11PM (local time) - 4.5ft (1.4m), 14s period with SSW swell.
Best Forecast Surf Conditions for Medewi this week:
The surf forecast for Medewi over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 17) at 11PM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.6m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Medewi in the next 16 days are 1.5m 14s and forecast to arrive on Thursday (Sep 17) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 17th Sep) | 4.5ft (1.4m) 14s |
| Best Surf | 11PM (Thu 17th Sep) | 4.5ft (1.4m) 14s |
| Most Powerful | 11AM (Thu 17th Sep) | 5ft (1.5m) 14s |
Table - best surf conditions forecast for Medewi over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s cut to it: the next couple of weeks at Medewi are going to test your patience. We’ve got a solid window of surf coming, but it’s mostly going to be a fight against the wind and chop. The water’s sitting at 80°, which is about average for this time of year, so no surprises there.
The first real chance to get wet starts Tuesday the 15th. We’ve got a 4ft swell rolling in from the southwest, with a long 15-second period. That’s real groundswell energy, but the wind is coming from the SSE at 12 mph, so it’s cross-onshore and choppy. The energy reading is only 685, which is weak, and honestly, the surf is going to be a mess. Not worth paddling out for.
Wednesday the 16th is much the same story, with a 4ft swell and the wind easing slightly to 9 mph, but it’s still cross-onshore and fairly choppy. Thursday the 17th sees the swell bump up to 5ft, and the energy jumps to a moderate 1127, but the wind is still on it, keeping things marginal.
Finally, on Friday the 18th, we get a break. The wind swings around to the SSW at 6 mph and it’s offshore. The swell drops a touch to 4ft, but with that clean wind and a 14-second period, this is your best early call. The energy is only moderate at 517, but the clean conditions will make it fun for beginners. Later that afternoon, the wind goes back to the southeast, so get on it early.
Saturday the 19th and Sunday the 20th are more of the same cross-onshore slop, with waves around 3ft and 5ft respectively. The energy stays moderate, but the quality just isn’t there. Monday the 21st is a little better with a 4ft swell and light winds, but it’s still cross-onshore.
Then we hit a bit of a lull. Tuesday the 22nd and Wednesday the 23rd start to mix it up. The swell drops to 3ft on Tuesday but with a very long 18-second period, which is interesting, but the wind is still cross-onshore. Wednesday the 23rd is the first sign of something bigger, with the swell jumping to 5ft and energy climbing to a strong 1179. Still, the wind ruins it.
Thursday the 24th drops back slightly to 4ft, and Friday the 25th is poor again with 4ft and a shorter, less organized swell.
Now, here’s where things get interesting. For the second week, keep your eyes on Saturday the 26th. That’s the standout. The swell is forecast to jump to 7ft in the morning, pushing to 8ft in the afternoon, from the SSW. The period is a very long 21 seconds, and the energy reading is a massive 4089, jumping to 4784. This is a serious groundswell. The wind is still cross-onshore at 9-12 mph, so it won’t be glassy, but with this much juice, it’s going to be powerful. This is expert territory – over 8ft is only for the experienced crew. And remember, this long-period swell might break a bit too straight at certain spots, but Medewi (a beach and point setup) should handle it.
Sunday the 27th keeps the size, with 8ft in the morning and 7ft in the afternoon, energy still very strong at 3509. The wind eases slightly but remains cross-onshore. Monday the 28th is still solid, with 6ft and strong energy, but it’s starting to fade.
After that, the swell backs off into a more normal, smaller pattern for the end of the month.
So, bottom line: the first real clean window is Friday the 18th. It’s not big, but it’s clean. The big one to watch is Saturday the 26th and Sunday the 27th – that’s the true standout for size and power, but it’s for experts only and the wind is going to be a factor. It’s a long-range call, so treat it as promising but not set in stone. It’s a long dry spell before that, though, so if you’re keen, get on Friday.
Rusty out.
Short Range ForecastMostly dry. Warm (max 27°C on Tue morning, min 23°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Fri afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 14 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
657 | 589 | 693 | 568 | 656 | 818 | 943 | 682 | 508 | 501 | 318 | 419 | 316 | 312 | 362 | 940 | 917 | 871 | 701 | 597 | 418 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-off | on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off |
High Tide | 2:05PM1.13m | 1:19AM1.58m | 3:09PM1.00m | 1:42AM1.54m | 2:09AM1.49m | 2:46AM1.43m | 3:54AM1.37m | 5:54AM1.36m | 11:00PM1.18m | ||||||||||||
Low Tide | 6:43PM0.83m | 8:45AM0.48m | 6:42PM0.90m | 9:45AM0.50m | 11:06AM0.53m | 12:45PM0.51m | 1:58PM0.46m | 2:45PM0.41m | 1:30AM1.16m | ||||||||||||
6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 24 | 27 | 27 | 24 | 27 | 27 | 24 | 26 | 27 | 25 | 27 | 27 | 24 | 27 | 27 | 24 | 28 | 28 | 24 |
Feels °C | 27 | 27 | 26 | 28 | 28 | 26 | 29 | 29 | 27 | 29 | 30 | 28 | 30 | 29 | 27 | 29 | 29 | 27 | 30 | 30 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 14 | SW 14 | SW 14 |
657 | 589 | 693 | 568 | 656 | 818 | 943 | 682 | 508 | 501 | 318 | 419 | 316 | 312 | 362 | 940 | 917 | 871 | 701 | 597 | 418 | |
Swell 2 Height (m) Direction Period (s) | S 8 | W 18 | SSE 6 | SSW 21 | — | S 6 | SSW 18 | S 7 | S 7 | SE 5 | S 8 | SE 6 | SW 18 | SW 18 | SSW 13 | — | SE 6 | SE 7 | — | — | SE 6 |
1 | 6 | 17 | 45 | — | 23 | 184 | 45 | 39 | 7 | 29 | 6 | 84 | 159 | 277 | — | 9 | 15 | — | — | 13 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 7 | — | S 21 | SE 5 | SSW 20 | ESE 5 | — | SE 6 | — | — | — | — | — | SW 20 |
— | — | — | — | — | — | — | 25 | — | 9 | 5 | 38 | 3 | — | 8 | — | — | — | — | — | 16 | |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 5 | SE 6 | SSE 5 | SSE 5 | ESE 5 | — | — | — | — | SE 6 | SE 6 | ESE 5 | ESE 5 | — | SE 6 | — | SE 7 | SE 6 | SE 6 | SE 6 |
27 | 32 | 54 | 15 | 21 | 18 | — | — | — | — | 25 | 38 | 11 | 10 | — | 5 | — | 35 | 16 | 18 | 39 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 73 | 52 | 18 | 51 | 47 | 18 | 52 | 47 | 0 | 47 | 52 | 18 | 49 | 52 | 18 | 47 | 52 | 0 | 47 | 52 | 0 |
Best forecast wave conditions in West Coast of Bali | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Medewi Surf forecast
The above surf forecast table for Medewi provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Medewi can be found by selecting the local surf guide option on the grey menu. Our Medewi 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 (Medewi) 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 Medewi 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.
Medewi is 27 km (17 miles) from Negara. If you plan a holiday in West Coast of Bali, look for hotels and other accommodation in Negara. Negara has rooms for a wide range of budgets as well as car hire and transport links.










