Islita 48 hour detailed Surf Forecast

Lat Long: 9.85° N 85.40° W

Issued: 5 am 16 Oct 2026 (local time)

Forecast update in hr min

Today's Islita sea temperature is

29.9°C

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

Surf Forecasts:

How big are the waves at Islita today (16 Oct):

Morning surf: Morning surf (16 Oct, local time) - 2.5ft (0.7m), 19s period with SW swell.
Afternoon surf: Afternoon surf (16 Oct, local time) - 3ft (0.9m), 18s period with SW swell.
Evening surf: Evening surf (16 Oct, local time) - 3.5ft (1.0m), 18s period with SW swell.

The current surf forecast for Islita at 9AM is: 0.7m 19s primary swell from a Southwest direction and 0.9m 13s secondary swell from a Southwest direction (forecast issued at 05:00am October 16). The wind direction is predicted to be glassy and the swell rating is 3.

Time (CST) & Date	Wave Height	Wave Period
Morning (16 Oct)	2.5ft (0.7m)	19s
Afternoon (16 Oct)	3ft (0.9m)	18s
Evening (16 Oct)	3.5ft (1.0m)	18s

Table - waves today at Islita. (Swell directed towards the surf break)

	Short Range Forecast Heavy rain (total 82mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 24°C on Sat night). Wind will be generally light.
	Friday 16							Saturday 17								Sunday 18
	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM
Rating (10 max)	3	3	3	2	2	2	3	3	3	3	2	2	1	2	3	4	3	3	4	4	2	3	3
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 14	SW 20	SW 19	SW 19	SW 18	SW 18	SW 18	SW 18	SW 18	SW 17	SW 17	SW 17	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16
Wave Graph
kJ	306	388	384	441	486	628	621	614	600	687	663	1000	795	786	786	976	952	940	929	929	917	917	906
Wind (km/h)	E	ENE	ESE	SSW	SSW	SSE	ESE	NE	NE	NE	SE	SE	SE	SE	E	ENE	ESE	E	ENE	NE	S	SW	E
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	glassy	glassy	cross-on	on	on	glassy	cross-off	cross-off	cross-off	cross-on	cross-on	cross-on	cross-on	cross-off	cross-off	cross	cross	cross-off	cross-off	on	glassy	glassy
High Tide		5:49AM2.30m					6:21PM2.07m				6:31AM2.16m				7:08PM1.96m				7:19AM2.03m				8:03PM1.88m
Low Tide					12:10PM0.46m				00:20AM0.68m				12:55PM0.59m				1:07AM0.81m				1:46PM0.71m


	5:30	—	—	—	—	—	—	—	5:30	—	—	—	—	—	—	—	5:30	—	—	—	—	—	—
	—	—	—	—	5:23	—	—	—	—	—	—	—	5:22	—	—	—	—	—	—	—	5:22	—	—
mm	1	2	1	2	2	2	5	2	1	3	2	1	2	6	9	22	17	3	—	—	1	1	—
Temp °C	27	26	28	29	29	28	27	26	26	26	28	29	29	27	26	25	24	24	25	28	28	27	27
Feels °C	32	30	33	33	34	33	32	31	30	30	32	32	32	31	30	29	27	26	28	32	32	32	32
Swell 1 Height (m) Direction Period (s)	SW 14	SW 13	SW 13	SW 19	SW 18	SW 18	SW 18	SW 18	SW 18	SW 17	SW 17	SW 17	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16
kJ	264	261	257	441	486	628	621	614	600	687	663	1000	795	786	786	976	952	940	929	929	917	917	906
Swell 2 Height (m) Direction Period (s)	SW 20	SW 20	SW 19	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SSW 6	SSW 6	SSW 6	SSW 6	S 6	S 6	S 7	S 8	S 8	S 8	S 7	S 7	S 7
kJ	306	388	384	212	178	178	178	175	138	136	27	27	36	37	36	49	66	76	72	71	53	53	53
Swell 3 Height (m) Direction Period (s)	S 7	S 7	S 7	S 7	S 8	SSW 7	SW 6	SW 5	SSW 6	SSW 6	SSW 13	WNW 12	SW 12	SW 12	SW 12	WNW 10	WNW 10	WNW 13	WNW 9	WNW 12	W 12	W 11	W 11
kJ	26	25	27	26	28	25	11	14	26	26	109	30	71	71	71	20	19	35	28	50	73	62	61
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Nearest Offshore or Glassy	Islita Guanacaste	Islita Guanacaste	Islita Guanacaste	Guiones Guanacaste	Avellanas Rivermouth Guanacaste	Playa Pelada Guanacaste	Islita Guanacaste	Islita Guanacaste	Islita Guanacaste	Islita Guanacaste	Playa Caletas Golfo de Nicoya	Playa Pelada Guanacaste	Playa Pelada Guanacaste	Guiones Guanacaste	Islita Guanacaste	Islita Guanacaste	Playa Coyote Golfo de Nicoya	Playa Coyote Golfo de Nicoya	Islita Guanacaste	Islita Guanacaste	Playa Manzanillo Golfo de Nicoya	Islita Guanacaste	Islita Guanacaste
Rating (10 max)	3	3	3	3	3	3	3	3	3	3	3	4	3	3	3	4	3	3	4	4	3	3	3
Distance (km)	0	0	0	30	64	33	0	0	0	0	19	33	33	30	0	0	14	14	0	0	25	0	0
Best forecast wave conditions in Guanacaste	Playa Negra	Playa Negra	Playa Negra	Playa Negra	Avellanas Rivermouth	Playa Negra	Playa Negra	Playa Negra	Playa Negra	Playa Negra	Playa Negra	Playa Negra	Avellanas Rivermouth	Playa Negra	Playa Negra	Playa Negra	Playa Negra	Playa Negra	Raps	Playa Negra	Playa Negra	Avellanas Rivermouth	Raps
Rating (10 max)	3	3	3	3	3	3	3	3	3	3	3	4	3	4	4	4	4	4	4	4	4	4	4
Best forecast wave conditions in Costa Rica	Playa Negra Guanacaste	Playa Negra Guanacaste	Playa Negra Guanacaste	Playa Negra Guanacaste	Avellanas Rivermouth Guanacaste	Playa Negra Guanacaste	Playa Negra Guanacaste	Playa Negra Guanacaste	Eclipse Golfo Dulce	Eclipse Golfo Dulce	Punta Burica Golfo Dulce	Playa Negra Guanacaste	Dominacalito and The Point Golfo de Nicoya	Cabo Blanco Golfo Dulce	Eclipse Golfo Dulce	Punta Burica Golfo Dulce	Playa Negra Guanacaste	Playa Negra Guanacaste	Punta Burica Golfo Dulce	Punta Burica Golfo Dulce	Playa Negra Guanacaste	Punta Burica Golfo Dulce	Raps Guanacaste
Rating (10 max)	3	3	3	3	3	3	3	3	3	3	3	4	3	4	4	4	4	4	4	4	4	4	4
Header Global	Viri Inga O Tuki Chile	Ahijedero Mexico	Ahijedero Mexico	Bocock's Bay Namibia	Papatowai New Zealand	Afife Portugal	Afife Portugal	Afife Portugal	Dunedin - Bobs Beach New Zealand	Dunedin - Bobs Beach New Zealand	Ahijedero Mexico	Dunedin - Bobs Beach New Zealand	Ahijedero Mexico	Pascuales Mexico	Dunedin - Bobs Beach New Zealand	Dunedin - Bobs Beach New Zealand	Nugget Point New Zealand	Otago Peninsula - Allans Beach New Zealand	Albatross South Africa	Ahijedero Mexico	Ahijedero Mexico	Nugget Point New Zealand	Dunedin - Bobs Beach New Zealand
Rating (10 max)	5	4	4	4	5	4	4	4	5	5	5	5	5	7	6	6	5	4	4	4	4	5	5

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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Islita 48 hour detailed Surf Forecast

How big are the waves at Islita today (16 Oct):

Short Range Forecast

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