Surf Forecasts:
Tongo Reef surf forecast from 13 Aug 2026:
- Most powerful swell: Friday 14 Aug, 3AM (local time) - 5ft (1.6m), 16s period, SW swell with 1,347 kJ wave energy.
Best Forecast Surf Conditions for Tongo Reef this week:
The most powerful waves expected at Tongo Reef in the next 16 days are 1.6m 16s and forecast to arrive on Friday (Aug 14) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 8s period and expected on Thursday (Aug 13) at 12PM.
| Wave Type | Time (-06) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3AM (Fri 14th Aug) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for Tongo Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s coming for the next couple of weeks. If you’re hoping for clean perfection every day, you’re going to be disappointed. But if you want one solid session that’s got real power and shape, there’s a clear winner.
The best window is Thursday morning, 13 August at Tongo Reef. That’s the session. Swell is coming from the SW at 4ft, but the period is a whopping 18 seconds – that’s proper groundswell, deep water energy, long lines. The wind is a gentle SSE breeze, cross-off, so the face is clean. The combined energy is strong at 1115. The only catch? That long period means long waits between sets, but when they come, they’re fast, heavy, and perfect for the advanced crew. Thursday morning is the only time I’d set my alarm for.
After that, from Thursday afternoon all the way through the rest of the 16-day forecast, it’s a long stretch of marginal surf. Swell stays mostly between 3ft and 5ft, but the wind is always a cross-off breeze – no glassy stuff. The wave reports keep calling it questionable. Around Tuesday 18 August, the swell bumps up to 6ft from the SSE, but the period drops to 8 seconds – that’s short-period, weaker energy, more choppy than lined up. The combined energy sits in the 600-800 range, so moderate wave energy.
Into the second week, from 23 August onwards, it drops off significantly. Swell sizes fall to 2ft or less, with weaker energy. There’s a little pulse of long period SW swell again around 27-28 August, with the energy climbing back over 1000 on Thursday afternoon, but the wave comments are still marginal. Something to keep an eye on, but no guarantees.
Water temp is average for the season, nothing unusual. And because Tongo Reef is a reef break, and a lot of the middle period has swell over 5ft with strong winds, those days – especially Tuesday 18 and Wednesday 19 August with 6ft to 6ft short period surf and a fresh breeze – the setup might be more interesting for kite surfing than paddle surfing.
So here’s the deal: Thursday morning, 13 August at Tongo Reef is the standout. Everything else is just waiting around. The second week shows a late glimmer, but it’s too far out to count on.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Thu morning, min 24°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sun morning, min 24°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 15 | SSE 8 | SSE 9 | SSE 9 | SSE 10 | SSE 10 | SSE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 817 | 1099 | 1271 | 1109 | 1068 | 949 | 746 | 746 | 549 | 541 | 471 | 492 | 418 | 477 | 441 | 445 | 455 | 455 | 618 | 627 | 551 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:07PM2.09m | 3:38AM2.21m | 3:52PM2.10m | 4:20AM2.21m | 4:35PM2.07m | 5:00AM2.17m | 5:17PM1.99m | 5:40AM2.08m | 5:59PM1.88m | 6:19AM1.96m | 6:44PM1.76m | 7:01AM1.82m | 7:33PM1.63m | ||||||||
Low Tide | 9:07AM0.21m | 9:23PM0.03m | 9:51AM0.16m | 10:06PM0.03m | 10:34AM0.15m | 10:46PM0.09m | 11:15AM0.19m | 11:26PM0.20m | 11:56AM0.28m | 00:06AM0.33m | 12:37PM0.38m | 00:47AM0.49m | 1:22PM0.50m | 1:32AM0.64m | |||||||
 |  |  | | |  | | |  | |  | | | | | | | | | | | |
 | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:04 | — | — | 6:04 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 24 |
Feels °C | 25 | 25 | 25 | 25 | 25 | 27 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 15 | SSW 14 | SW 14 | SSE 9 | SW 13 | SSW 13 | SSE 10 |
| kJ | 817 | 1099 | 1271 | 1109 | 1068 | 949 | 746 | 746 | 549 | 541 | 471 | 492 | 418 | 477 | 441 | 362 | 293 | 455 | 175 | 116 | 551 |
Swell 2 Height (m) Direction Period (s) | SW 14 | S 12 | S 12 | N 8 | N 8 | S 11 | N 9 | S 10 | S 10 | N 6 | S 10 | N 7 | N 9 | N 8 | N 10 | N 8 | N 8 | SW 13 | N 8 | N 8 | SW 15 |
| kJ | 130 | 101 | 65 | 6 | 5 | 116 | 6 | 75 | 70 | 1 | 17 | 4 | 6 | 5 | 17 | 13 | 12 | 261 | 5 | 5 | 55 |
Swell 3 Height (m) Direction Period (s) | S 11 | N 8 | N 7 | SW 8 | — | N 7 | N 6 | N 8 | N 7 | N 9 | N 8 | S 13 | S 12 | N 11 | NW 10 | NW 10 | NW 10 | N 8 | SW 18 | SW 18 | SW 12 |
| kJ | 61 | 11 | 4 | 3 | — | 4 | 1 | 5 | 4 | 2 | 5 | 3 | 3 | 2 | 4 | 4 | 4 | 10 | 12 | 12 | 37 |
Wind waves Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | SSE 12 | SSE 11 | SSE 6 | SSE 11 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | — | SSE 10 | SSE 10 | — |
| kJ | 107 | 110 | 119 | 368 | 343 | 75 | 359 | 103 | 85 | 139 | 147 | 232 | 294 | 318 | 367 | 445 | 455 | — | 618 | 627 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 94 | 1253 | 94 | 94 | 1309 | 94 | 94 | 1283 | 94 | 94 | 1285 | 94 | 94 | 1238 | 94 | 977 | 1271 | 94 | 996 | 1294 | 1016 |
Best forecast wave conditions in Galapagos - San Cristobal | |||||||||||||||||||||
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Information about the Tongo Reef Surf forecast
The above surf forecast table for Tongo Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tongo Reef can be found by selecting the local surf guide option on the grey menu. Our Tongo Reef 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 (Tongo Reef) 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 Tongo Reef 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 Galapagos - San Cristobal? If you are looking for accommodation near Tongo Reef, camping, hotels and holiday cottages in Galapagos - San Cristobal, consider staying in Galapagos Islands which is 3 km (2 miles) away. Other places in and around Galapagos - San Cristobal where you can find information about places to rent, and car hire include San Cristobal which is 53 km (33 miles) away and Bahia de la Academia, 79 km (49 miles) away.
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