Surf Forecasts:
Diria surf forecast from 10 Jun 2026:
- Best quality surf: Wednesday 10 Jun, 3AM (local time) - 5ft (1.5m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 16 Jun, 6PM (local time) - 4.5ft (1.3m), 19s period, SW swell with 1,336 kJ wave energy.
- Next surfable swell (1★+): Wednesday 10 Jun, 3AM (local time) - 5ft (1.5m), 16s period with SSW swell.
Best Forecast Surf Conditions for Diria this week:
The surf forecast for Diria over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jun 10) at 3AM. The primary swell is predicted to be 1.5m and 16s period with a secondary swell of 1.3m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Diria in the next 16 days are 1.3m 19s and forecast to arrive on Tuesday (Jun 16) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 7s period and expected on Saturday (Jun 13) at 3PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 10th Jun) | 5ft (1.5m) 16s |
| Best Surf | 3AM (Wed 10th Jun) | 5ft (1.5m) 16s |
| Most Powerful | 6PM (Tue 16th Jun) | 4.5ft (1.3m) 19s |
Table - best surf conditions forecast for Diria over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Tue afternoon. Warm (max 29°C on Thu morning, min 25°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Mon morning. Warm (max 30°C on Sat morning, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tue 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 17 | SSW 16 | SW 16 | SW 15 | SSW 15 | SSW 14 | SW 14 | SW 15 | SW 24 | SW 14 | SW 21 | SW 21 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1714 | 1184 | 909 | 848 | 425 | 362 | 325 | 246 | 277 | 368 | 334 | 573 | 544 | 377 | 362 | 301 | 280 | 347 | 251 | 1005 | 742 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-on | glassy | glassy | on | cross | cross | cross-on | cross-on | cross-off | cross-on | off | off | cross-on | cross-off | off | cross-on | cross-off | off |
High Tide | 9:14PM1.88m | 9:47AM2.20m | 10:16PM1.90m | 10:44AM2.29m | 11:19PM1.96m | 11:42AM2.40m | 00:20AM2.06m | 12:39PM2.51m | 1:18AM2.17m | 1:36PM2.61m | 2:14AM2.29m | 2:31PM2.67m | 3:08AM2.40m | ||||||||
Low Tide | 3:14PM0.69m | 3:19AM0.62m | 4:15PM0.60m | 4:17AM0.59m | 5:16PM0.48m | 5:18AM0.52m | 6:14PM0.33m | 6:18AM0.42m | 7:10PM0.19m | 7:17AM0.31m | 8:04PM0.07m | 8:14AM0.22m | 8:57PM-0.02m | 9:10AM0.16m | |||||||
 |  |  |  |  |  | |  | | | | | |  | | | | | | | | |
 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 |
 | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | 6:05 |
mm | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | 2 | 3 | — | 3 | 2 | 5 | 4 | 4 | — |
Temp °C | 26 | 26 | 28 | 28 | 27 | 29 | 29 | 27 | 29 | 29 | 28 | 30 | 29 | 28 | 30 | 29 | 28 | 29 | 28 | 27 | 30 |
Feels °C | 29 | 29 | 30 | 30 | 31 | 32 | 32 | 31 | 32 | 32 | 32 | 34 | 32 | 32 | 35 | 32 | 32 | 33 | 30 | 32 | 34 |
Swell 1 Height (m) Direction Period (s) | W 8 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SW 16 | SW 15 | SSW 15 | SSW 14 | SW 14 | SW 15 | SW 15 | SW 14 | SW 21 | SW 21 |
| kJ | 513 | 1184 | 909 | 848 | 425 | 362 | 325 | 246 | 277 | 198 | 334 | 573 | 544 | 377 | 362 | 301 | 280 | 309 | 251 | 1005 | 742 |
Swell 2 Height (m) Direction Period (s) | SSW 17 | W 9 | W 9 | W 9 | W 9 | WNW 8 | W 8 | WNW 7 | SSW 18 | SSW 17 | SSW 13 | W 7 | S 7 | S 7 | S 8 | S 16 | SSW 15 | SW 24 | S 14 | SW 14 | SW 13 |
| kJ | 1714 | 299 | 184 | 159 | 160 | 109 | 93 | 55 | 209 | 368 | 151 | 23 | 28 | 28 | 28 | 132 | 172 | 347 | 98 | 218 | 178 |
Swell 3 Height (m) Direction Period (s) | — | NNW 7 | S 8 | — | S 7 | S 7 | S 7 | SSW 18 | WNW 7 | WNW 7 | WNW 7 | S 8 | W 6 | SSW 18 | SSW 17 | S 8 | S 8 | S 15 | S 7 | S 13 | S 7 |
| kJ | — | 19 | 10 | — | 17 | 9 | 9 | 218 | 27 | 10 | 28 | 29 | 13 | 106 | 95 | 29 | 28 | 110 | 27 | 92 | 23 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | WNW 7 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 40 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 8 | 0 | 9 | 0 | 0 | 9 | 9 | 40 | 9 | 9 | 0 | 9 | 0 | 0 | 9 | 0 | 0 | 9 | 0 | 0 |
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 Diria 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 Diria Surf forecast
The above surf forecast table for Diria provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Diria can be found by selecting the local surf guide option on the grey menu. Our Diria 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 (Diria) 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 Diria 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.
Diria is 47 km (29 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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