- Forecast
- Maps
- Live
- Weather State
- Spot Information
Nosara Beach Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Nosara Beach surfForecast / Guanacaste / Costa Rica
12 Day Weather and Surf, issued 5 pm Wednesday 17 Sep 2025 CST
Best Forecast Surf Conditions for Nosara Beach this week:
The surf forecast for Nosara Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 6AM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.7m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Nosara Beach in the next 12 days are 1.3m 14s and forecast to arrive on Thursday (Sep 18) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 15s period and expected on Wednesday (Sep 17) at 9PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 19th Sep) | 3ft (0.9m) 13s |
| Best Surf | 12AM (Wed 24th Sep) | 3.5ft (1.1m) 16s |
| Most Powerful | 12AM (Thu 18th Sep) | 4.5ft (1.3m) 14s |
Table - best surf conditions forecast for Nosara Beach over the next 12 days.
Short Range Forecast Moderate rain (total 17mm), heaviest on Wed afternoon. Warm (max 28°C on Wed afternoon, min 24°C on Thu afternoon). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 18mm), heaviest on Tue morning. Warm (max 28°C on Sun afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 13 | 15 | 15 | 14 | 13 | 13 | 13 | 18 | 16 | 16 | 16 | 15 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 733 | 672 | 395 | 384 | 357 | 295 | 199 | 159 | 164 | 164 | 191 | 134 | 103 | 144 | 142 | 109 | 300 | 211 | 251 | 553 | 305 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | on | on | cross | glass | on | glass | glass | cross- on | glass | cross- off | cross | glass | glass | on | glass | glass | cross- on | glass | glass | ||
High Tide / height (m) | 11:34PM 1.80 | 11:57AM 1.90 | 12:37AM 1.90 | 12:56PM 1.96 | 1:27AM 2.02 | 1:45PM 2.03 | 2:09AM 2.12 | 2:27PM 2.08 | 2:47AM 2.20 | 3:06PM 2.11 | 3:22AM 2.24 | 3:42PM 2.11 | 3:56AM 2.24 | ||||||||||
Low Tide / height (m) | 5:15PM 0.49 | 5:43AM 0.58 | 6:19PM 0.44 | 6:46AM 0.50 | 7:11PM 0.38 | 7:37AM 0.41 | 7:56PM 0.32 | 8:21AM 0.32 | 8:35PM 0.28 | 9:00AM 0.26 | 9:11PM 0.26 | 9:36AM 0.22 | 9:45PM 0.27 | 10:12AM 0.21 | |||||||||
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||||
| Sunrise | - | - | 5:31 | - | - | 5:31 | - | - | 5:31 | - | - | 5:31 | - | - | 5:31 | - | - | 5:31 | - | - | 5:31 | ||
| Sunset | 5:42 | - | - | 5:40 | - | - | 5:39 | - | - | 5:39 | - | - | 5:38 | - | - | 5:38 | - | - | 5:37 | - | - | ||
 |  | | |  |  | |  |  | | | | | | | | | | |  |  | |||
Rain (mm) | 3 | 6 | 3 | 1 | - | - | 1 | 1 | 2 | 3 | 1 | 1 | 2 | 1 | 2 | 1 | 3 | 4 | 1 | - | - | ||
| Temp. °C | 28 | 26 | 26 | 25 | 25 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 28 | ||
| Feels °C (?) | 31 | 29 | 29 | 28 | 28 | 30 | 30 | 31 | 31 | 30 | 31 | 30 | 32 | 31 | 31 | 30 | 30 | 32 | 31 | 30 | 31 | ||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Guanacaste
Continuing clean conditions at Nosara Beach (light winds from the E at DanielOduberInt. Airport 70 km from Nosara Beach). 0.9m 14s groundswell from the SW with a 0.5m 7s swell, also from the SW. 2 swells combining to make bigger set waves.
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 Nosara Beach 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 Nosara Beach Surf forecast
The above surf forecast table for Nosara Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Nosara Beach can be found by selecting the local surf guide option on the grey menu. Our Nosara Beach 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 (Nosara Beach) 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 Nosara Beach 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.
Nosara Beach is 33 km (20 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.
Nearest