Damas Rivermouth Surf Forecast

/ Golfo de Nicoya (40 surf breaks) /

Costa Rica (96 surf breaks) / Lat Long: (9.49° N 84.33° W)

Surf Forecasts:

Damas Rivermouth surfForecast / Golfo de Nicoya / Costa Rica

12 Day Weather and Surf, issued 11 pm Tuesday 18 Nov 2025 CST

Forecast update in hr min s Forecast update imminent

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

Today's Damas Rivermouth sea temperature is 27.7° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Damas Rivermouth this week:

The surf forecast for Damas Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Nov 19) at 6AM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.6m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Damas Rivermouth in the next 12 days are 0.7m 13s and forecast to arrive on Sunday (Nov 23) at 6PM. Winds are predicted to be glassy at the time the swell arrives.

Wave Type	Time (CST) & Date	Wave Height & Period
Next good surf (1 star+)	6AM (Wed 19th Nov)	1.5ft (0.4m) 15s
Best Surf	12AM (Fri 21st Nov)	1.5ft (0.4m) 16s
Most Powerful	6PM (Sun 23rd Nov)	2.5ft (0.7m) 13s

Table - best surf conditions forecast for Damas Rivermouth over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 2mm), mostly falling on Thu night. Warm (max 27°C on Wed morning, min 23°C on Tue night). Wind will be generally light.										Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Sun afternoon. Warm (max 27°C on Sat morning, min 24°C on Fri night). Wind will be generally light.
		Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Monday 24			Tue 25
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	1	1	0	1	1	0	2	1	1	1	1	0	1	1	1	1	1	0	1	1	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	S	SW	SSW	SW	SW	SW	SW	SW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW
Period(s) (?)	15	15	15	14	14	9	16	7	15	15	13	13	15	14	14	13	13	13	12	12	12
Wave Graph (?)
kJ (?)	78	76	75	72	66	56	93	58	136	106	113	62	61	79	73	68	151	149	129	127	81
Wind (km/h)	NE	SSE	SW	NNE	S	S	NNE	SSE	SSW	NNE	SSW	SSW	NE	S	WSW	NNE	SW	SW	NNE	S	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	glass	cross- on	glass	glass	on	glass	glass	cross- on	glass	glass	on	glass	glass	glass	glass	glass	cross- on	glass	glass	cross- on
High Tide / height (m)	1:45AM 2.50		2:17PM 2.31	2:22AM 2.54		2:54PM 2.35	2:58AM 2.55		3:31PM 2.36		3:35AM 2.54	4:08PM 2.35		4:11AM 2.50	4:45PM 2.31		4:48AM 2.44	5:24PM 2.26		5:26AM 2.36
Low Tide / height (m)		8:07AM 0.37		8:13PM 0.57	8:44AM 0.31		8:50PM 0.54	9:20AM 0.29		9:27PM 0.53	9:56AM 0.29		10:04PM 0.56	10:32AM 0.33		10:41PM 0.61	11:09AM 0.40		11:19PM 0.69	11:47AM 0.47

		Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Monday 24			Tue 25
Sunrise	-	5:31	-	-	5:31	-	-	5:33	-	-	5:33	-	-	5:33	-	-	5:33	-	-	5:35	-
Sunset	-	-	5:12	-	-	5:12	-	-	5:12	-	-	5:12	-	-	5:13	-	-	5:13	-	-	5:13

Rain (mm)	-	-	-	-	-	-	1	-	1	-	-	3	2	1	5	1	-	3	2	-	2
Temp. °C	26	27	27	25	27	27	25	27	27	25	27	27	25	27	27	25	27	27	25	27	27
Feels °C (?)	31	29	30	28	30	30	29	29	30	29	31	31	29	30	31	29	30	31	30	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)

Quick surf report for Damas Rivermouth:

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Information about the Damas Rivermouth Surf forecast

The above surf forecast table for Damas Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Damas Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Damas Rivermouth 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 (Damas Rivermouth) 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 Damas Rivermouth 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 Damas Rivermouth, camping, hotels and holiday cottages in Golfo de Nicoya, consider staying in Quepos which is 20 km (12 miles) away. Other places in and around Golfo de Nicoya where you can find information about places to rent, and car hire include Tejar which is 30 km (19 miles) away, San Rafael Abajo, Aserri and San Rafael Arriba.