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Rio Claro Surf Forecast
/ Golfo Dulce (13 surf breaks) /
Surf Forecasts:
Rio Claro surfForecast / Golfo Dulce / Costa Rica
16 Day Weather and Surf, issued 11 am Monday 18 May 2026 CSTForecast update in hr min s Forecast update imminent
Rio Claro surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rio Claro sea temperature is
30.2° C
(Which is 1.3°C warmer than normal for this time of year)Best Forecast Surf Conditions for Rio Claro this week:
The surf forecast for Rio Claro over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 18) at 6PM. The primary swell is predicted to be 0.7m and 13s period with a secondary swell of 0.5m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Rio Claro in the next 16 days are 0.9m 17s and forecast to arrive on Monday (May 25) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 18th May) | 2.5ft (0.7m) 13s |
| Best Surf | 9AM (Mon 25th May) | 3ft (0.9m) 16s |
| Most Powerful | 12PM (Mon 25th May) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Rio Claro over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 24mm), heaviest during Tue night. Warm (max 30°C on Wed morning, min 26°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Thu night. Warm (max 30°C on Thu morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
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 | SSW 13 | SSW 13 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SW 16 | SSW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 16 | S 9 | SW 15 | S 9 | S 9 | SW 18 | SW 18 | SW 16 | |
222 | 151 | 142 | 123 | 176 | 226 | 91 | 90 | 140 | 143 | 107 | 106 | 54 | 104 | 81 | 109 | 74 | 56 | 215 | 154 | 306 | |
Wind (km/h) | |||||||||||||||||||||
glassy | on | glassy | glassy | cross-on | glassy | glassy | cross | glassy | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross | glassy | |
High Tide | 3:41PM3.20m | 4:18AM2.96m | 4:32PM3.13m | 5:10AM2.93m | 5:25PM3.01m | 6:04AM2.86m | 6:20PM2.84m | 7:01AM2.77m | 7:19PM2.65m | 8:02AM2.68m | 8:22PM2.48m | 9:05AM2.61m | 9:30PM2.37m | ||||||||
Low Tide | 9:29AM0.18m | 10:03PM-0.10m | 10:20AM0.20m | 10:53PM-0.04m | 11:14AM0.28m | 11:46PM0.07m | 12:11PM0.40m | 00:40AM0.22m | 1:12PM0.54m | 1:38AM0.39m | 2:17PM0.66m | 2:39AM0.55m | 3:25PM0.72m | ||||||||
 | |  |  | |  |  | | | | | | | |  | | | | | |  | |
 | 5:15 | — | — | 5:15 | — | — | 5:13 | — | — | 5:13 | — | — | 5:13 | — | — | 5:13 | — | — | 5:13 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:46 | — | — | 5:46 | — |
— | — | 1 | 1 | 2 | 10 | 1 | 5 | 4 | — | 7 | 11 | — | — | — | — | — | — | — | — | — | |
Temp °C | 29 | 29 | 28 | 29 | 29 | 27 | 30 | 29 | 26 | 30 | 29 | 25 | 29 | 29 | 27 | 29 | 28 | 27 | 29 | 29 | 28 |
34 | 32 | 33 | 34 | 33 | 32 | 34 | 32 | 30 | 34 | 32 | 29 | 33 | 33 | 31 | 33 | 32 | 31 | 34 | 32 | 33 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 16 | SSW 13 | SW 16 | SSW 14 | SW 15 | SW 15 | SW 15 | S 8 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | SW 16 |
 kJ | 222 | 151 | 142 | 98 | 98 | 226 | 70 | 90 | 140 | 143 | 107 | 106 | 35 | 78 | 81 | 76 | 74 | 56 | 55 | 55 | 306 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | S 8 | S 8 | SSW 18 | SSW 12 | SSW 16 | SSW 16 | SW 15 | SSW 8 | SW 13 | S 8 | SW 15 | SSW 16 | SW 14 | SW 15 | SW 16 | SW 16 | SW 18 | SW 18 | S 11 |
| kJ | 28 | 27 | 29 | 29 | 176 | 56 | 86 | 86 | 80 | 19 | 42 | 30 | 54 | 104 | 73 | 109 | 39 | 41 | 215 | 154 | 83 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SSW 16 | SSW 19 | SSW 18 | SSW 7 | S 7 | SW 16 | SSW 7 | S 7 | SSW 14 | SSW 7 | SSW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SSW 12 |
| kJ | 83 | 103 | 73 | 123 | 18 | 16 | 91 | 9 | 8 | 39 | 16 | 94 | 32 | 73 | 46 | 29 | 46 | 28 | 39 | 36 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 90 | 0 | 0 | 107 | 0 | 0 | 35 | 0 | 0 | 90 | 0 | 0 | 171 | 0 | 0 | 107 | 0 | 0 | 90 | 0 |
Best forecast wave conditions in Golfo Dulce | |||||||||||||||||||||
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 Rio Claro 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 Rio Claro Surf forecast
The above surf forecast table for Rio Claro provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rio Claro can be found by selecting the local surf guide option on the grey menu. Our Rio Claro 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 (Rio Claro) 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 Rio Claro 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 Golfo Dulce? If you are looking for accommodation near Rio Claro, camping, hotels and holiday cottages in Golfo Dulce, consider staying in Golfito which is 51 km (32 miles) away. Alternatively, find information about places to stay and car hire in Puerto Armuelles which is 82 km (51 miles) away
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