Donostia-San Sebastián Water Temperature

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Donostia-San Sebastián is a city close to Bay of Biscay. August is the month with the warmest water temperature at 72.1°F / 22.3°C. The coolest month is February with an avg. water temperature of 54°F / 12.2°C. December is the sunniest at 0.8in / 20.9mm and November the wettest month with 3.9in / 99.7mm. The average air temperature is around 67.1°F / 19.5°C, August is the hottest month in a year. February is the coolest with 45.9°F / 7.7°C average air temperature. temperate oceanic climate with warm summer would be the climate here. June, July, August, September would be the best time to visit.

Donostia-San Sebastián Summary

Description	Value
Current water temperature	/
Warmest Month Water Temperature:	August with 22.3°C / 72.1°F
Coldest Month Water Temperature:	February with 12.2°C / 54°F
Warmest Month Air Temperature:	August with 19.5°C / 67.1°F
Coldest Month Air Temperature:	February with 7.7°C / 45.9°F
Wettest Month:	November with 99.7mm / 3.9in
Driest Month:	December with 20.9mm / 0.8in
Highest Humidity	July with 80.6%
Lowest Humidity	March with 74%
Best Time to Visit:	June, July, August, September
Climate Classification	temperate oceanic climate with warm summer

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Donostia-San Sebastián water temperature by month

°C

Bay of Biscay water temperature by month

	Max. Water Temperature (°C)	ø. Water Temperature (°C)	Min. Water Temperature (°C)
January	13.5	13	12.4
February	12.5	12.2	12
March	12.7	12.4	12
April	14.6	13.5	12.7
May	17.5	15.8	14.4
June	20.7	19	17.5
July	22.4	21.5	20.7
August	22.5	22.2	21.9
September	22.1	21.2	20.1
October	20.1	18.7	17.4
November	17.3	16	14.9
December	14.9	14.1	13.5

°F

Bay of Biscay water temperature by month

	Max. Water Temperature (°F)	ø. Water Temperature (°F)	Min. Water Temperature (°F)
January	56.3	55.4	54.3
February	54.5	54	53.6
March	54.9	54.3	53.6
April	58.3	56.3	54.9
May	63.5	60.4	57.9
June	69.3	66.2	63.5
July	72.3	70.7	69.3
August	72.5	72	71.4
September	71.8	70.2	68.2
October	68.2	65.7	63.3
November	63.1	60.8	58.8
December	58.8	57.4	56.3

The highest water temperature will be reached in August with around 72.1°F / 22.3°C. The lowest in February with an average water temperature of 54°F / 12.2°C.

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Donostia-San Sebastián weather today & 14-day weather forecast

7-day weather forecast
+9-day forecast

7-day weather forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Aug. 21	Broken clouds	67 °F 61°F	19 °C 16°C	2mph (3km/h) south	0in (1mm) 15 %	73%
Aug. 22	Scattered clouds	70 °F 59°F	21 °C 15°C	1mph (2km/h) south-southeast	0in (1mm) 20 %	76%
Aug. 23	Few clouds	80 °F 53°F	27 °C 12°C	1mph (1km/h) east-southeast	0in (0mm) 20 %	75%
Aug. 24	Scattered clouds	87 °F 57°F	30 °C 14°C	1mph (1km/h) south-southeast	0in (0mm) 10 %	78%
Aug. 25	Moderate rain	78 °F 66°F	26 °C 19°C	1mph (2km/h) southeast	1in (14mm) 80 %	79%
Aug. 26	Moderate rain	86 °F 59°F	30 °C 15°C	1mph (1km/h) south-southwest	1in (15mm) 85 %	87%
Aug. 27	Broken clouds	78 °F 56°F	25 °C 14°C	2mph (3km/h) west	0in (2mm) 35 %	80%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Aug. 28	Overcast clouds	78 °F 58°F	26 °C 14°C	2mph (4km/h) west	0in (0mm) 20 %	65%
Aug. 29	Thunderstorm with rain	71 °F 56°F	21 °C 14°C	4mph (7km/h) west	0in (3mm) 50 %	61%
Aug. 30	Light rain	76 °F 49°F	24 °C 10°C	2mph (4km/h) southwest	0in (2mm) 40 %	61%
Aug. 31	Scattered clouds	70 °F 50°F	21 °C 10°C	2mph (3km/h) northwest	0in (1mm) 25 %	75%
Sep. 01	Clear Sky	81 °F 50°F	27 °C 10°C	1mph (2km/h) east	0in (0mm) 0 %	63%
Sep. 02	Few clouds	86 °F 57°F	30 °C 14°C	1mph (1km/h) east-southeast	0in (0mm) 0 %	48%
Sep. 03	Overcast clouds	78 °F 55°F	25 °C 13°C	1mph (2km/h) southeast	0in (0mm) 10 %	62%
Sep. 04	Broken clouds	70 °F 54°F	21 °C 12°C	1mph (2km/h) north-northwest	0in (1mm) 25 %	73%
Sep. 05	Scattered clouds	78 °F 50°F	26 °C 10°C	0mph (1km/h) south-southeast	0in (1mm) 20 %	64%

Donostia-San Sebastián weather by month / climate table

°C

	Max. Temperature °C	ø. Temperature °C	Min. Temperature (°C)	Precip. (mm)	Rainy Days (d)	Rel. Humidity (%)
January	11.3	8	4.6	56.4	10	79.2%
February	11.3	7.7	4.5	38.5	10	76.2%
March	14.2	9.8	5.8	28.4	9	74%
April	16.7	11.6	7.3	75.1	13	76.1%
May	18.6	14	9.3	98.3	9	78.4%
June	22.4	17.2	12.4	45.7	3	79.7%
July	23.4	18.9	15	59.1	6	80.6%
August	23.8	19.5	15.9	70	4	79.2%
September	22.5	18.1	13.5	58	2	77.9%
October	20.5	15.7	11.6	26.2	0	75.2%
November	16.5	11.1	7.3	99.7	12	77.8%
December	12.9	8.8	5.8	20.9	8	77.4%

°F

	Max. Temperature °F	ø. Temperature °F	Min. Temperature (°F)	Precip. (in)	Rainy Days (d)	Rel. Humidity (%)
January	52.3	46.4	40.3	2.2	10	79.2%
February	52.3	45.9	40.1	1.5	10	76.2%
March	57.6	49.6	42.4	1.1	9	74%
April	62.1	52.9	45.1	3	13	76.1%
May	65.5	57.2	48.7	3.9	9	78.4%
June	72.3	63	54.3	1.8	3	79.7%
July	74.1	66	59	2.3	6	80.6%
August	74.8	67.1	60.6	2.8	4	79.2%
September	72.5	64.6	56.3	2.3	2	77.9%
October	68.9	60.3	52.9	1	0	75.2%
November	61.7	52	45.1	3.9	12	77.8%
December	55.2	47.8	42.4	0.8	8	77.4%

December is the driest at 0.8in / 20.9mm and November the wettest month with 3.9in / 99.7mm. With an average temperature of 67.1°F / 19.5°C, August is the warmest month in a year. February is the coldest with 45.9°F / 7.7°C average temperature.

Activities & POI in Donostia-San Sebastián

Type of Activity	List
Beach	Playa de la Concha - Kontxa hondartza, Ondarreta, Cala de Santa Clara, Zurriola
Marina for Sailing, Boat adventures, fishing	Donostia
Attraction	Salto de olas hasta el paseo, Lugar para, Mota gaztelua
Caravan Site	Parking Municipal de Autocaravanas

Bay of Biscay