Medewi Surf Break

Lat Long: 8.43° S 114.82° E

Medewi Surf Forecast and Surf Report

Issued: 7 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Medewi sea temperature is
26.3° C
0.1° 

Medewi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Medewi surf forecast from 18 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 5AM (local time) - 4ft (1.2m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 11PM (local time) - 6.5ft (2.0m), 17s period, SSW swell with 2,230 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 5AM (local time) - 4ft (1.2m), 16s 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 Wednesday (Aug 19) at 5AM. The primary swell is predicted to be 1.0m and 19s period with a secondary swell of 1.2m and 16s. Another secondary swell of 0.9m and 6s is also forecast. 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 2.0m 17s and forecast to arrive on Wednesday (Aug 19) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 19th Aug)4ft (1.2m) 16s
Best Surf 5AM (Wed 19th Aug)4ft (1.2m) 16s
Most Powerful11PM (Wed 19th Aug)6.5ft (2.0m) 17s

Table - best surf conditions forecast for Medewi over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s have a look at what’s coming up for us.

It’s a pretty frustrating stretch ahead, to be honest. We’ve got solid, long-period groundswell rolling in from the SSW, but the wind is just not playing ball. For the next week and a half, it’s a constant battle with cross-onshore breezes, chopping up what would otherwise be decent waves. The water temp is sitting about average for the time of year, so no surprises there.

The first real sniff of action is on Wednesday, August 19th at Medewi. The swell is a clean 6 ft from the SSW with a very long 18-second period, pushing the combined energy up to 1800 (moderate-strong) – there’s plenty of power in the water. The problem is that south-southeast wind at 6 mph, coming straight across. It’s a light breeze, but it’s cross-on, so expect a few bumps on the face. The afternoon sees the swell bump up to 6 ft, but the wind picks up to 9 mph, making it even more cross.

Thursday, August 20th is more of the same. Swell holds around 6 ft to 6 ft, still with that lovely long period, but the wind is still cross to cross-on. The surf is rideable, but it’s not going to be the clean, lined-up perfection Medewi can be on its day.

There’s a glimmer of hope on Friday, August 28th. The morning shows the wind finally swinging offshore from the south, at only 6 mph. We’ve got a 6 ft SSW swell with a 16-second period (1419 combined energy). This is the standout in the whole outlook. That offshore wind should groom the point, offering some genuinely clean, powerful waves. The crowd can be around sometimes, so get in early for the best of it. Afternoon goes back to the cross-on, so the morning session is the one.

The rest of the run into the second week is mostly a write-off. The swell drops right off, dipping below 3 ft, and the wind stays stubbornly onshore. It’s a long gap of poor conditions from the 25th right through to the end of the month. If you’re a beginner, the swell is mostly under 5 ft, but the choppy conditions won’t make it easy. For the experts, the standout morning on the 28th will be the only time the swell matches the power.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri afternoon, min 23°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Sat morning, min 23°C on Fri night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
2
3
3
2
3
3
2
2
3
2
1
3
1
1
3
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SW
16
1.7
SSW
18
1.9
SSW
17
2
SSW
17
1.8
SW
16
1.7
SSW
16
1.5
SSW
16
1.2
SW
15
1.7
SSW
17
1.7
SSW
16
1.6
SSW
16
1.5
SSW
16
1.5
SSW
15
1.3
SSW
15
1
SSW
19
1.3
SSW
14
1.4
SSW
16
1.3
SSW
16
1.1
SSW
14
Wave Graph
Metric surfscale
Energy kJ
711
1740
2113
2178
1672
1390
1126
631
1696
1451
1273
1040
962
794
694
638
978
859
508
Wind (km/h)
5
E
10
SSE
15
SE
10
ESE
15
SSE
15
SE
10
ESE
15
SSE
20
SE
10
ESE
20
SE
15
SSE
15
ESE
20
SSE
15
SSE
15
ESE
20
SE
20
SSE
15
SE
Wind State
glassy
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
High Tide
2:59AM1.51m
4:46PM0.90m
3:32AM1.48m
4:17AM1.45m
5:26AM1.43m
6:47AM1.45m
7:52AM1.50m
11:43PM1.14m
Low Tide
10:44AM0.64m
7:34PM0.87m
12:20PM0.59m
1:51PM0.51m
2:51PM0.43m
3:32PM0.35m
4:05PM0.28m
2:16AM1.10m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:28
6:28
6:26
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:20
6:20
6:20
6:20
6:20
6:19
6:19
 mm
Temp °C
24
26
26
25
26
26
24
26
27
24
27
27
24
27
27
24
27
27
24
Feels °C
26
28
28
27
27
27
26
27
27
25
27
27
26
28
28
26
27
26
25
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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