Surf Forecasts:
Mandiri surf forecast from 24 Jul 2026:
- Best quality surf: Saturday 25 Jul, 1AM (local time) - 8ft (2.5m), 10s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 31 Jul, 1AM (local time) - 5ft (1.6m), 18s period, SSW swell with 1,561 kJ wave energy.
- Next surfable swell (1★+): Saturday 25 Jul, 1AM (local time) - 8ft (2.5m), 10s period with SSE swell.
Best Forecast Surf Conditions for Mandiri this week:
The surf forecast for Mandiri over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 25) at 1AM. The primary swell is predicted to be 2.5m and 10s period with a secondary swell of 2.1m and 10s. Another secondary swell of 0.8m and 16s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mandiri in the next 16 days are 1.6m 18s and forecast to arrive on Friday (Jul 31) at 1AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 25th Jul) | 8ft (2.5m) 10s |
| Best Surf | 1AM (Sat 25th Jul) | 8ft (2.5m) 10s |
| Most Powerful | 1AM (Fri 31st Jul) | 5ft (1.6m) 18s |
Table - best surf conditions forecast for Mandiri over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 29°C on Fri morning, min 23°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Tue afternoon. Warm (max 28°C on Mon morning, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
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) | SSE 9 | SSE 9 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSW 15 | S 15 | SSW 14 | SSW 19 | SSW 19 | SSW 18 | SSW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1098 | 845 | 1079 | 969 | 592 | 816 | 400 | 294 | 377 | 295 | 301 | 373 | 254 | 358 | 422 | 272 | 257 | 480 | 894 | 854 | 1561 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-on | cross-on | cross-off | cross-on | on | cross-off | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off | on | cross-on | cross-off | glassy | cross-on | off |
High Tide | 2:26PM0.48m | 3:08AM0.92m | 4:15PM0.47m | 4:14AM0.94m | 5:36PM0.50m | 5:11AM0.98m | 6:26PM0.55m | 5:59AM1.03m | 7:03PM0.61m | 6:40AM1.08m | 7:36PM0.68m | 7:16AM1.11m | 8:07PM0.75m | ||||||||
Low Tide | 9:58AM0.38m | 7:02PM0.36m | 11:21AM0.33m | 8:12PM0.39m | 12:11PM0.26m | 9:44PM0.40m | 12:47PM0.21m | 10:57PM0.38m | 1:16PM0.17m | 11:53PM0.34m | 1:42PM0.13m | 00:39AM0.31m | 2:07PM0.11m | 1:21AM0.29m | |||||||
 |  |  | | |  | | |  | | | | |  | |  | | | | |  | |
 | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 4 | 5 | 1 | 4 | 1 | — | 1 | 1 |
Temp °C | 29 | 27 | 25 | 28 | 27 | 25 | 28 | 27 | 24 | 28 | 28 | 25 | 28 | 28 | 25 | 28 | 28 | 25 | 29 | 29 | 25 |
Feels °C | 28 | 26 | 26 | 30 | 29 | 27 | 30 | 29 | 27 | 30 | 31 | 28 | 31 | 30 | 27 | 31 | 32 | 28 | 31 | 33 | 29 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | S 17 | SSE 10 | SSE 9 | SSW 15 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 8 | SSE 8 | S 7 | SSE 7 | SSE 8 | SSW 19 | SSW 18 | SSW 18 |
| kJ | 653 | 217 | 784 | 605 | 225 | 471 | 400 | 294 | 377 | 295 | 301 | 373 | 254 | 180 | 163 | 112 | 117 | 113 | 894 | 854 | 1561 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SW 15 | SSW 16 | SSW 15 | SW 15 | SSW 14 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | S 15 | SSW 14 | SSW 14 | SSW 13 | SW 13 | SSE 6 |
| kJ | 86 | 33 | 350 | 225 | 134 | 154 | 229 | 183 | 142 | 128 | 101 | 318 | 217 | 358 | 422 | 272 | 257 | 294 | 229 | 180 | 68 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | WSW 18 | SW 16 | SW 15 | W 10 | SW 13 | W 11 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SW 12 | SW 12 | S 11 | SSW 11 | SW 14 | S 14 | SSW 19 | SSE 7 | S 12 | S 11 |
| kJ | 107 | 30 | 125 | 134 | 2 | 88 | 2 | 36 | 32 | 117 | 159 | 35 | 35 | 2 | 12 | 194 | 195 | 480 | 71 | 72 | 41 |
Wind waves Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | — | — | — | — | — | — | — | SSE 9 | SSE 8 | — | SSE 8 | SSE 8 | — | SSE 7 | SE 6 |
| kJ | 1098 | 845 | 1079 | 969 | 592 | 816 | — | — | — | — | — | — | — | 355 | 315 | — | 243 | 207 | — | 69 | 157 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 56 | 641 | 0 | 56 | 56 | 0 | 56 | 56 | 0 | 56 | 56 | 0 | 56 | 56 | 0 | 6 | 9 | 0 | 0 | 56 | 0 |
Best forecast wave conditions in Indonesia - Sumatra - Mainland | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mandiri surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Mandiri Surf forecast
The above surf forecast table for Mandiri provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mandiri can be found by selecting the local surf guide option on the grey menu. Our Mandiri 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 (Mandiri) 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 Mandiri 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.
Mandiri is 113 km (70 miles) from the city of Kotabumi. If you plan a holiday in Indonesia - Sumatra - Mainland, look for hotels and other accommodation in Kotabumi. Kotabumi has rooms for a wide range of budgets as well as car hire and transport links.
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