Rio Claro Surf Break

Lat Long: 8.46° N 83.59° W

Rio Claro Surf Forecast and Surf Report

Issued: 5 pm 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rio Claro sea temperature is
30.2°C
2.4° 

Rio Claro surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Rio Claro surf forecast from 21 Sep 2026:

  • Best quality surf: Saturday 26 Sep, 12AM (local time) - 3ft (0.9m), 11s period, WNW swell with glassy winds.
  • Most powerful swell: Sunday 27 Sep, 12AM (local time) - 3.5ft (1.0m), 13s period, SW swell with 335 kJ wave energy.
  • Next surfable swell (1★+): Monday 21 Sep, 12AM (local time) - 2ft (0.6m), 18s period with SW swell.

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 (Sep 21) at 12AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.7m and 7s. Another secondary swell of 0.5m and 5s is also forecast. 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 1.0m 13s and forecast to arrive on Sunday (Sep 27) at 12AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 21st Sep)2ft (0.6m) 18s
Best Surf12AM (Sat 26th Sep)3ft (0.9m) 11s
Most Powerful12AM (Sun 27th Sep)3.5ft (1.0m) 13s

Table - best surf conditions forecast for Rio Claro over the next 16 days.


Short Range Forecast

Heavy rain (total 44mm), heaviest during Sun night. Warm (max 29°C on Sun afternoon, min 25°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 26mm), heaviest during Thu morning. Warm (max 29°C on Fri morning, min 26°C on Wed night). Wind will be generally light.

Sun
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
2
2
2
2
2
2
2
1
2
2
1
2
1
0
3
2
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
19
0.6
SW
18
0.7
SW
18
0.7
SW
18
0.6
SW
16
0.7
SW
16
0.7
SW
16
0.7
SW
16
0.6
SW
16
0.6
SW
15
0.7
SW
15
0.6
SW
14
0.6
SW
14
0.6
SW
13
1
WNW
11
0.9
WNW
11
0.9
WNW
11
0.9
SW
14
0.9
SW
14
1
SW
13
Wave Graph
Metric surfscale
Energy kJ
299
252
304
300
211
257
251
248
153
149
209
132
160
142
263
198
214
317
304
335
Wind (km/h)
10
SW
5
SSE
10
NW
5
NW
5
ENE
5
WNW
10
WNW
10
NW
5
NW
15
W
5
NNW
5
WSW
10
SSW
5
SE
10
SE
15
SSE
5
SSE
10
SE
10
S
5
N
Wind State
cross-on
glassy
cross-off
glassy
cross-off
glassy
cross-off
cross-off
cross-off
cross
cross-off
glassy
on
glassy
cross-on
on
glassy
cross-on
on
glassy
High Tide
9:57PM2.00m
10:15AM2.12m
11:12PM2.07m
11:26AM2.18m
00:11AM2.22m
12:23PM2.31m
00:56AM2.41m
1:09PM2.45m
1:34AM2.61m
1:50PM2.60m
2:10AM2.80m
2:29PM2.73m
2:45AM2.95m
Low Tide
3:36PM0.96m
4:01AM1.13m
4:50PM0.94m
5:17AM1.07m
5:51PM0.85m
6:16AM0.94m
6:39PM0.73m
7:04AM0.76m
7:19PM0.60m
7:44AM0.57m
7:57PM0.47m
8:22AM0.39m
8:33PM0.36m
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
thunderstorm
thunderstorm
thunderstorm
clear
rain showers
thunderstorm
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:22
5:22
5:22
5:22
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
5:30
5:29
5:28
5:28
 mm
4
11
8
2
5
7
2
3
2
1
5
3
7
1
9
2
3
Temp °C
29
27
27
27
26
25
26
25
28
28
27
28
28
27
29
28
26
29
28
27
Feels °C
33
31
31
32
30
30
30
28
32
31
31
33
32
31
31
30
30
33
31
32
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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