Harlech Water Temperature

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Harlech is a town close to Irish Sea. temperate oceanic climate with warm summer would be the climate here. August is the month with the highest water temperature at 61.9°F / 16.6°C. The month with the lowest is February with an average water temperature of 45.5°F / 7.5°C. The avg. air temperature is around 58.8°F / 14.9°C, July is the month with the highest temperature. February is the coolest with 39.6°F / 4.2°C average air temperature. March is the month with the min. precipitation of 1.5in / 38.7mm and December with the max. precipitation in a year with 6.3in / 160.7mm. June, July, August, September would be the best time to visit this place.

Harlech Summary

Description	Value
Current water temperature	/
Warmest Month Water Temperature:	August with 16.6°C / 61.9°F
Coldest Month Water Temperature:	February with 7.5°C / 45.5°F
Warmest Month Air Temperature:	July with 14.9°C / 58.8°F
Coldest Month Air Temperature:	February with 4.2°C / 39.6°F
Wettest Month:	December with 160.7mm / 6.3in
Driest Month:	March with 38.7mm / 1.5in
Highest Humidity	December with 89%
Lowest Humidity	May with 79.4%
Best Time to Visit:	June, July, August, September
Climate Classification	temperate oceanic climate with warm summer

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Harlech water temperature by month

°C

Irish Sea water temperature by month

	Max. Water Temperature (°C)	ø. Water Temperature (°C)	Min. Water Temperature (°C)
January	8.9	8.3	7.8
February	7.8	7.6	7.4
March	8.1	7.6	7.3
April	10	9	8.1
May	12.6	11.2	10.1
June	14.8	13.7	12.6
July	16.3	15.7	14.8
August	16.7	16.5	16.2
September	16.5	16	15.3
October	15.3	14.4	13.3
November	13.2	12.1	10.9
December	10.8	9.9	8.9

°F

Irish Sea water temperature by month

	Max. Water Temperature (°F)	ø. Water Temperature (°F)	Min. Water Temperature (°F)
January	48	46.9	46
February	46	45.7	45.3
March	46.6	45.7	45.1
April	50	48.2	46.6
May	54.7	52.2	50.2
June	58.6	56.7	54.7
July	61.3	60.3	58.6
August	62.1	61.7	61.2
September	61.7	60.8	59.5
October	59.5	57.9	55.9
November	55.8	53.8	51.6
December	51.4	49.8	48

August is the month with the warmest water temperature at 61.9°F / 16.6°C. The month with the coldest is February with an average water temperature of 45.5°F / 7.5°C.

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Harlech 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
Jan. 14	Light shower rain	50 °F 46°F	10 °C 8°C	4mph (7km/h) south-southwest	0in (2mm) 45 %	97%
Jan. 15	Broken clouds	48 °F 46°F	9 °C 8°C	4mph (7km/h) south-southwest	0in (0mm) 20 %	94%
Jan. 16	Scattered clouds	47 °F 45°F	9 °C 7°C	4mph (7km/h) south	0in (0mm) 0 %	83%
Jan. 17	Overcast clouds	47 °F 46°F	9 °C 8°C	5mph (8km/h) south	0in (0mm) 0 %	93%
Jan. 18	Overcast clouds	45 °F 43°F	7 °C 6°C	5mph (8km/h) south-southeast	0in (0mm) 0 %	87%
Jan. 19	Light shower rain	46 °F 44°F	8 °C 7°C	5mph (9km/h) south-southeast	0in (3mm) 60 %	90%
Jan. 20	Overcast clouds	46 °F 45°F	8 °C 7°C	5mph (8km/h) south-southwest	0in (0mm) 0 %	94%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Jan. 21	Overcast clouds	46 °F 44°F	8 °C 7°C	4mph (7km/h) south	0in (0mm) 0 %	92%
Jan. 22	Overcast clouds	44 °F 42°F	7 °C 6°C	4mph (7km/h) south-southeast	0in (0mm) 0 %	88%
Jan. 23	Broken clouds	45 °F 41°F	7 °C 5°C	5mph (8km/h) south-southeast	0in (0mm) 0 %	84%
Jan. 24	Light rain	43 °F 33°F	6 °C 1°C	4mph (6km/h) south	0in (6mm) 75 %	87%
Jan. 25	Light shower rain	35 °F 32°F	2 °C 0°C	2mph (3km/h) southeast	0in (2mm) 60 %	95%
Jan. 26	Light shower rain	44 °F 34°F	6 °C 1°C	3mph (5km/h) southeast	0in (2mm) 50 %	94%
Jan. 27	Overcast clouds	44 °F 40°F	6 °C 5°C	2mph (3km/h) east-southeast	0in (0mm) 0 %	95%
Jan. 28	Overcast clouds	42 °F 39°F	6 °C 4°C	2mph (3km/h) east	0in (1mm) 30 %	98%
Jan. 29	Light shower rain	37 °F 35°F	3 °C 2°C	2mph (3km/h) northeast	0in (3mm) 60 %	98%

Harlech weather by month / climate table

°C

	Max. Temperature °C	ø. Temperature °C	Min. Temperature (°C)	Precip. (mm)	Rainy Days (d)	Rel. Humidity (%)
January	7	4.4	1.4	135.4	17	88.6%
February	7.1	4.2	1.1	100.6	10	85.7%
March	9.7	5.3	0.4	39.7	7	83.1%
April	13.2	7.7	2.8	40.5	6	79.6%
May	15	10.6	5.5	45.3	10	79.4%
June	18.3	13.3	8.9	38.7	7	80.2%
July	18.9	14.9	11.1	50.6	16	82.1%
August	18.4	14.6	11	125.4	19	84.7%
September	17.2	13	8.9	59.1	11	84.4%
October	14.8	10.3	6.4	120	0	85.7%
November	11.2	7.2	3	145.5	17	88.3%
December	8.1	5.1	1.5	160.7	17	89%

°F

	Max. Temperature °F	ø. Temperature °F	Min. Temperature (°F)	Precip. (in)	Rainy Days (d)	Rel. Humidity (%)
January	44.6	39.9	34.5	5.3	17	88.6%
February	44.8	39.6	34	4	10	85.7%
March	49.5	41.5	32.7	1.6	7	83.1%
April	55.8	45.9	37	1.6	6	79.6%
May	59	51.1	41.9	1.8	10	79.4%
June	64.9	55.9	48	1.5	7	80.2%
July	66	58.8	52	2	16	82.1%
August	65.1	58.3	51.8	4.9	19	84.7%
September	63	55.4	48	2.3	11	84.4%
October	58.6	50.5	43.5	4.7	0	85.7%
November	52.2	45	37.4	5.7	17	88.3%
December	46.6	41.2	34.7	6.3	17	89%

March is the most draught at 1.5in / 38.7mm and December the month with the most rain around 6.3in / 160.7mm. The avg. temperature is around 58.8°F / 14.9°C, July is the hottest month in a year. February is the coolest with 39.6°F / 4.2°C avg. temperature.

Activities & POI in Harlech

Type of Activity	List
Attraction	Harlech Castle
Golf Course	Royal Saint Davids Golf Course
Caravan Site	Castle View Holiday Park

Irish Sea