Rio Tulin Surf Break

Lat Long: 9.54° N 84.56° W

Rio Tulin Surf Forecast and Surf Report

Issued: 5 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rio Tulin sea temperature is
30.1°C
2.2° 

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


Rio Tulin surf forecast from 21 Sep 2026:

  • Best quality surf: Monday 28 Sep, 9AM (local time) - 3ft (0.9m), 12s period, SSW swell with glassy winds.
  • Most powerful swell: Monday 21 Sep, 9AM (local time) - 2.5ft (0.8m), 18s period, SW swell with 370 kJ wave energy.
  • Next surfable swell (1★+): Monday 21 Sep, 12PM (local time) - 2.5ft (0.8m), 18s period with SW swell.

Best Forecast Surf Conditions for Rio Tulin this week:

The surf forecast for Rio Tulin over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 21) at 12PM. The primary swell is predicted to be 0.8m and 18s period with a secondary swell of 0.8m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Rio Tulin in the next 16 days are 0.8m 18s and forecast to arrive on Monday (Sep 21) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Mon 21st Sep)2.5ft (0.8m) 18s
Best Surf 9AM (Mon 28th Sep)3ft (0.9m) 12s
Most Powerful 9AM (Mon 21st Sep)2.5ft (0.8m) 18s

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


Short Range Forecast

Heavy rain (total 30mm), heaviest during Mon morning. Warm (max 28°C on Tue morning, min 26°C on Mon morning). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 23mm), heaviest during Fri afternoon. Warm (max 28°C on Thu morning, min 25°C on Fri night). Wind will be generally light.

Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
2
1
0
2
2
0
2
1
1
1
2
0
2
2
1
2
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SW
18
0.8
SW
18
0.7
SW
16
0.8
SW
16
0.7
SW
16
0.8
SW
16
0.6
SW
16
0.6
SW
15
0.6
SW
15
0.6
SW
14
0.6
SW
14
0.6
SW
13
0.6
SW
13
0.6
SW
13
0.8
SW
14
0.9
SW
14
0.9
SW
14
1
SW
13
1
SW
13
0.9
SW
13
0.9
SW
13
Wave Graph
Metric surfscale
Energy kJ
370
366
271
314
261
302
196
183
171
169
160
144
138
140
248
322
308
347
336
282
273
Wind (km/h)
15
NW
5
WNW
5
SE
5
SSE
10
SSW
5
N
5
SW
10
WSW
5
E
5
SSE
10
SSE
10
E
15
ESE
20
SSE
10
E
0
WNW
10
SSW
5
NE
10
NW
5
WSW
5
NNE
Wind State
cross-off
glassy
glassy
cross
cross-on
glassy
glassy
on
glassy
cross
cross
cross-off
cross-off
cross
cross-off
glassy
cross-on
off
cross
cross-on
cross-off
High Tide
10:17AM2.01m
11:12PM1.93m
11:27AM2.06m
00:11AM2.07m
12:24PM2.17m
00:58AM2.24m
1:12PM2.30m
1:38AM2.43m
1:54PM2.43m
2:14AM2.61m
2:33PM2.54m
2:50AM2.76m
3:12PM2.62m
Low Tide
4:52PM0.87m
5:15AM1.00m
5:53PM0.80m
6:16AM0.88m
6:42PM0.69m
7:05AM0.72m
7:23PM0.57m
7:48AM0.55m
8:01PM0.45m
8:27AM0.38m
8:37PM0.34m
9:05AM0.23m
9:14PM0.26m
mod rain
cloud
thunderstorm
rain showers
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
5:26
5:26
5:26
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:35
5:34
5:32
5:32
5:31
5:31
5:30
 mm
6
2
1
10
5
2
4
1
2
5
9
2
4
4
2
Temp °C
27
27
27
28
28
26
28
28
27
28
28
27
28
28
27
28
28
27
28
28
27
Feels °C
30
31
32
32
31
30
31
31
32
31
31
30
30
30
30
32
32
32
31
32
31
  • 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 Tulin Surf forecast

The above surf forecast table for Rio Tulin provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rio Tulin can be found by selecting the local surf guide option on the grey menu. Our Rio Tulin 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 Tulin) 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 Tulin 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 de Nicoya? If you are looking for accommodation near Rio Tulin, camping, hotels and holiday cottages in Golfo de Nicoya, consider staying in Tejar which is 42 km (26 miles) away. Other places in and around Golfo de Nicoya where you can find information about places to rent, and car hire include San Rafael Abajo which is 44 km (27 miles) away, Quepos, Esparza and Chacarita.

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