Surf Forecasts:
Junquillal surf forecast from 18 Sep 2026:
- Best quality surf: Sunday 20 Sep, 6AM (local time) - 2.5ft (0.8m), 19s period, SW swell with glassy winds.
- Most powerful swell: Monday 21 Sep, 9AM (local time) - 3.5ft (1.1m), 18s period, SW swell with 679 kJ wave energy.
- Next surfable swell (1★+): Saturday 19 Sep, 12AM (local time) - 2ft (0.6m), 19s period with SW swell.
Best Forecast Surf Conditions for Junquillal this week:
The surf forecast for Junquillal over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 19) at 12AM. The primary swell is predicted to be 0.6m and 19s period with a secondary swell of 0.8m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Junquillal in the next 16 days are 1.1m 18s and forecast to arrive on Monday (Sep 21) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 6s period and expected on Friday (Sep 18) at 3PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 19th Sep) | 2ft (0.6m) 19s |
| Best Surf | 6AM (Sun 20th Sep) | 2.5ft (0.8m) 19s |
| Most Powerful | 9AM (Mon 21st Sep) | 3.5ft (1.1m) 18s |
Table - best surf conditions forecast for Junquillal over the next 16 days.
Short Range ForecastHeavy rain (total 67mm), heaviest during Sat night. Warm (max 32°C on Fri morning, min 25°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 70mm), heaviest during Tue night. Warm (max 28°C on Wed morning, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 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 |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 13 | SW 20 | SW 19 | SW 19 | SW 13 | SW 18 | SW 19 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 205 | 239 | 236 | 224 | 167 | 325 | 614 | 614 | 516 | 679 | 582 | 443 | 498 | 421 | 480 | 335 | 309 | 301 | 293 | 277 | 215 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | glassy | glassy | cross-off | glassy | cross-off | cross-off | on | glassy | cross-on | on | cross-on | on | cross-on | on | cross | on | on | cross | cross-on |
High Tide | 7:39PM1.83m | 7:57AM1.97m | 8:36PM1.73m | 8:57AM1.87m | 9:46PM1.68m | 10:07AM1.84m | 10:59PM1.73m | 11:15AM1.87m | 11:59PM1.84m | 12:13PM1.95m | 00:47AM1.99m | 1:02PM2.06m | 1:28AM2.16m | ||||||||
Low Tide | 1:32PM0.60m | 1:39AM0.74m | 2:27PM0.71m | 2:36AM0.85m | 3:33PM0.78m | 3:48AM0.91m | 4:43PM0.78m | 5:02AM0.88m | 5:44PM0.72m | 6:04AM0.79m | 6:33PM0.63m | 6:55AM0.66m | 7:14PM0.53m | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — |
 | — | 5:42 | — | — | 5:40 | — | — | 5:39 | — | — | 5:39 | — | — | 5:38 | — | — | 5:37 | — | — | 5:37 | — |
mm | — | 1 | — | — | — | 50 | — | 1 | 15 | 3 | 5 | 10 | 3 | 5 | 37 | 4 | 1 | 2 | 1 | 3 | 1 |
Temp °C | 32 | 29 | 28 | 30 | 30 | 28 | 29 | 29 | 27 | 27 | 26 | 26 | 27 | 26 | 25 | 28 | 28 | 26 | 29 | 29 | 27 |
Feels °C | 36 | 31 | 32 | 34 | 32 | 32 | 34 | 33 | 32 | 32 | 29 | 29 | 29 | 28 | 28 | 31 | 30 | 29 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 18 | SW 19 | SW 19 | SW 18 | SW 18 | SW 17 | S 7 | SSW 7 | SSW 7 | SW 16 | SW 6 | SW 6 | WSW 7 | SW 14 | SW 14 | SSW 7 |
| kJ | 205 | 205 | 205 | 170 | 167 | 325 | 614 | 614 | 516 | 679 | 582 | 211 | 173 | 86 | 480 | 98 | 78 | 86 | 293 | 277 | 77 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 9 | SW 19 | S 8 | S 8 | S 7 | SSW 7 | S 7 | S 7 | SSW 7 | SW 11 | SW 16 | SW 16 | SW 16 | WSW 8 | SW 15 | SW 15 | SW 15 | S 7 | W 7 | SW 13 |
| kJ | 51 | 52 | 236 | 46 | 54 | 52 | 34 | 51 | 62 | 63 | 58 | 443 | 498 | 421 | 58 | 335 | 309 | 301 | 37 | 14 | 215 |
Swell 3 Height (m) Direction Period (s) | SW 20 | SW 20 | S 9 | SW 19 | SW 18 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | — | SSW 11 | SW 11 | WSW 7 | SW 10 | SW 10 | S 8 | S 7 | W 7 | WNW 7 | W 6 |
| kJ | 196 | 239 | 38 | 224 | 154 | 118 | 114 | 114 | 106 | 58 | — | 47 | 29 | 46 | 25 | 25 | 18 | 27 | 34 | 10 | 13 |
Wind waves Height (m) Direction Period (s) | — | WSW 6 | — | — | — | — | — | — | — | — | S 7 | SSE 7 | — | ESE 3 | SSW 7 | — | — | — | — | SSW 7 | — |
| kJ | — | 3 | — | — | — | — | — | — | — | — | 270 | 298 | — | 3 | 102 | — | — | — | — | 58 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 2 | 2 | 17 | 17 | 2 | 8 | 2 | 2 | 220 | 2 |
Best forecast wave conditions in Guanacaste | |||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 Junquillal 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 Junquillal Surf forecast
The above surf forecast table for Junquillal provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Junquillal can be found by selecting the local surf guide option on the grey menu. Our Junquillal 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 (Junquillal) 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 Junquillal 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.
Junquillal is 40 km (25 miles) from Nicoya. If you plan a holiday in Guanacaste, look for hotels and other accommodation in Nicoya. Nicoya has rooms for a wide range of budgets as well as car hire and transport links.
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