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Diria Surf Forecast
/ Guanacaste (28 surf breaks) /
Diria surfForecast / Guanacaste / Costa Rica
12 Day Weather and Surf, issued 11 pm Monday 30 Jun 2025 CST
Best Forecast Surf Conditions for Diria this week:
The surf forecast for Diria over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 01) at 3PM. The primary swell is predicted to be 0.6m and 16s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Diria in the next 12 days are 1.4m 16s and forecast to arrive on Sunday (Jul 06) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 9s period and expected on Sunday (Jul 06) at 9AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Tue 1st Jul) | 2ft (0.6m) 16s |
| Best Surf | 9PM (Wed 2nd Jul) | 3.5ft (1.0m) 16s |
| Most Powerful | 6AM (Sun 6th Jul) | 4.5ft (1.4m) 16s |
Table - best surf conditions forecast for Diria over the next 12 days.
Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Sat 12 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 14 | 17 | 16 | 17 | 18 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 18 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 17 | 16 | 16 | 16 | 16 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 48 | 104 | 165 | 140 | 300 | 493 | 574 | 719 | 612 | 551 | 536 | 544 | 403 | 689 | 711 | 890 | 855 | 1020 | 734 | 560 | 436 | 283 | 280 | 261 | 215 | 162 | 144 | 115 | 89 | 284 | 331 | 391 | 380 | 396 | 222 | 310 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | off | glass | off | off | off | glass | off | off | cross- on | off | off | cross- on | cross- off | off | cross- on | off | glass | cross- on | off | off | off | off | off | on | cross- off | cross- off | cross- off | cross- off | off | cross- off | off | off | cross |
High Tide / height (m) | 7:00AM 2.29 | 7:13PM 2.10 | 7:46AM 2.22 | 8:02PM 1.97 | 8:33AM 2.15 | 8:55PM 1.86 | 9:23AM 2.09 | 9:52PM 1.78 | 10:15AM 2.05 | 10:51PM 1.75 | 11:08AM 2.04 | 11:49PM 1.76 | 12:01PM 2.06 | 12:43AM 1.80 | 12:52PM 2.11 | 1:33AM 1.87 | 1:39PM 2.18 | 2:18AM 1.95 | 2:23PM 2.25 | 3:00AM 2.05 | 3:05PM 2.31 | 3:41AM 2.14 | 3:46PM 2.34 | |||||||||||||
Low Tide / height (m) | 12:40AM 0.32 | 1:13PM 0.53 | 1:25AM 0.45 | 2:04PM 0.61 | 2:11AM 0.58 | 2:57PM 0.67 | 2:59AM 0.68 | 3:52PM 0.70 | 3:51AM 0.76 | 4:49PM 0.69 | 4:46AM 0.79 | 5:44PM 0.65 | 5:42AM 0.77 | 6:36PM 0.59 | 6:35AM 0.73 | 7:24PM 0.51 | 7:24AM 0.67 | 8:08PM 0.43 | 8:10AM 0.61 | 8:49PM 0.35 | 8:54AM 0.54 | 9:28PM 0.29 | 9:36AM 0.49 | |||||||||||||
Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Sat 12 | |||||||||||||||||||||||||
| Sunrise | - | 5:24 | - | - | 5:24 | - | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | - | 5:28 | - | - | 5:28 | - |
| Sunset | - | - | 6:07 | - | - | 6:07 | - | - | 6:07 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 |
 |  | |  |  |  |  | | | |  | | | | | | | | | | | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | 6 | 9 | 7 | 17 | - | 3 | 2 | 3 | 32 | 4 | 1 | 12 | 9 | 1 | 5 | 3 | 2 | 9 | 1 | - | - | - | - | 1 | - | - | - | - | - | 2 | - | 1 | 12 |
| Temp. °C | 26 | 30 | 30 | 26 | 27 | 26 | 24 | 28 | 28 | 26 | 28 | 26 | 25 | 28 | 28 | 25 | 28 | 28 | 25 | 27 | 26 | 25 | 29 | 29 | 26 | 29 | 28 | 26 | 28 | 28 | 26 | 29 | 29 | 26 | 29 | 28 |
| Feels °C (?) | 28 | 31 | 33 | 29 | 32 | 29 | 24 | 31 | 33 | 30 | 33 | 30 | 29 | 32 | 31 | 29 | 32 | 31 | 28 | 31 | 29 | 28 | 30 | 29 | 24 | 32 | 31 | 29 | 30 | 31 | 29 | 30 | 31 | 29 | 33 | 31 |
Short Range Forecast: Heavy rain (total 42mm), heaviest during Wed night. Warm (max 30°C on Tue morning, min 23°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 69mm), heaviest during Fri afternoon. Warm (max 28°C on Fri morning, min 24°C on Thu night). Wind will be generally light. | Days 6-9 Weather Summary Moderate rain (total 16mm), heaviest on Mon afternoon. Warm (max 29°C on Tue morning, min 24°C on Mon night). Wind will be generally light. | Long Range Forecast: Moderate rain (total 18mm), heaviest on Sat afternoon. Warm (max 29°C on Fri morning, min 24°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 12 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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