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Lighthouse surfForecast / Tongatapu / Tonga
16 Day Weather and Surf, issued 6 am Monday 18 May 2026 +13Forecast update in hr min s Forecast update imminent
Lighthouse surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Lighthouse sea temperature is
26.5° C
(Which is 1.2°C warmer than normal for this time of year)Best Forecast Surf Conditions for Lighthouse this week:
The surf forecast for Lighthouse over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (May 19) at 10PM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 0.5m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lighthouse in the next 16 days are 1.8m 12s and forecast to arrive on Friday (May 22) at 1PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 8s period and expected on Monday (May 18) at 1PM.
| Wave Type | Time (+13) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 19th May) | 1.5ft (0.4m) 16s |
| Best Surf | 1AM (Fri 22nd May) | 3.5ft (1.1m) 12s |
| Most Powerful | 1PM (Fri 22nd May) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Lighthouse over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 15mm), heaviest on Tue afternoon. Warm (max 24°C on Mon morning, min 22°C on Wed night). Winds decreasing (fresh winds from the ESE on Mon afternoon, calm by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Thu morning, min 22°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SSW 13 | S 13 | SW 18 | SSW 12 | SW 16 | SW 15 | SW 14 | SW 14 | S 11 | SW 16 | SW 15 | SE 12 | SE 12 | SE 11 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | |
61 | 90 | 51 | 50 | 65 | 56 | 33 | 31 | 22 | 64 | 55 | 309 | 528 | 851 | 687 | 524 | 634 | 799 | 695 | 593 | 497 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 9:00PM1.36m | 9:07AM1.54m | 9:57PM1.35m | 10:04AM1.51m | 10:55PM1.34m | 11:02AM1.46m | 11:54PM1.32m | 12:03PM1.40m | 00:54AM1.31m | 1:04PM1.33m | 1:53AM1.30m | 2:07PM1.26m | 2:50AM1.29m | ||||||||
Low Tide | 2:43PM-0.05m | 2:54AM0.19m | 3:38PM-0.05m | 3:52AM0.20m | 4:35PM-0.03m | 4:51AM0.23m | 5:33PM0.02m | 5:53AM0.26m | 6:31PM0.08m | 6:57AM0.29m | 7:30PM0.14m | 8:01AM0.31m | 8:27PM0.21m | ||||||||
 | |  |  | |  |  | |  | | | | | | | | | | | | | |
 | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — |
 | — | 6:09 | — | — | 6:08 | — | — | 6:08 | — | — | 6:08 | — | — | 6:08 | — | — | 6:07 | — | — | 6:07 | — |
— | — | — | 3 | 8 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 |
19 | 19 | 19 | 21 | 22 | 23 | 23 | 22 | 22 | 21 | 21 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 21 | 22 | 21 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | S 13 | SSW 12 | SSW 12 | SSW 12 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 12 | SE 12 | E 8 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 |
 kJ | 60 | 90 | 51 | 50 | 46 | 252 | 235 | 258 | 243 | 260 | 274 | 309 | 528 | 33 | 687 | 524 | 634 | 799 | 695 | 593 | 497 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | S 11 | S 11 | SW 16 | SW 15 | E 8 | SW 14 | SSW 13 | SSW 13 | E 9 | E 9 | E 9 | NE 10 | NE 10 | NE 10 |
| kJ | 61 | 61 | 49 | 41 | 65 | 56 | 33 | 22 | 22 | 64 | 55 | 112 | 33 | 18 | 18 | 58 | 25 | 13 | 15 | 24 | 24 |
Swell 3 Height (m) Direction Period (s) | SSW 10 | SW 19 | SW 12 | ESE 14 | SE 14 | SSW 12 | SE 12 | SW 14 | ESE 13 | S 10 | N 8 | SW 14 | N 10 | N 10 | ENE 9 | NE 8 | NE 10 | NE 10 | SW 16 | SW 16 | SW 12 |
| kJ | 18 | 58 | 24 | 19 | 29 | 26 | 39 | 31 | 17 | 8 | 5 | 33 | 8 | 8 | 8 | 10 | 14 | 15 | 41 | 41 | 23 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | — | SW 2 | SW 3 | SW 3 | SE 3 | ESE 8 | SE 11 | S 10 | — | — | — | — | — | — |
| kJ | 481 | 439 | 345 | 354 | 354 | — | — | — | 2 | 2 | 1 | 2 | 167 | 851 | 225 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 728 | 865 | 850 | 755 | 3 | 1 | 1 | 281 | 871 | 885 | 893 | 0 | 282 | 755 | 728 | 778 | 885 | 728 | 282 | 282 | 282 |
Best forecast wave conditions in Tonga - Tongatapu | |||||||||||||||||||||
Best forecast wave conditions in Tonga | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Lighthouse 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 Lighthouse Surf forecast
The above surf forecast table for Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Lighthouse 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 (Lighthouse) 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 Lighthouse 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.
Lighthouse is 3 km (2 miles) from Neiafu. If you plan a holiday in Tonga - Tongatapu, look for hotels and other accommodation in Neiafu. Neiafu has rooms for a wide range of budgets as well as car hire and transport links.
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