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. If you plan to visit this place, the month June, July, August, September would be the best time.

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 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.

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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
Nov. 22	Light shower rain	48 °F 41°F	9 °C 5°C	3mph (5km/h) west-southwest	0in (2mm) 50 %	71%
Nov. 23	Mix snow/rain	56 °F 44°F	14 °C 6°C	11mph (18km/h) south	2in (38mm) 95 %	95%
Nov. 24	Moderate rain	53 °F 51°F	12 °C 11°C	12mph (19km/h) south-southwest	0in (11mm) 85 %	84%
Nov. 25	Broken clouds	49 °F 46°F	9 °C 8°C	8mph (13km/h) west-southwest	0in (1mm) 25 %	78%
Nov. 26	Broken clouds	47 °F 44°F	8 °C 7°C	5mph (7km/h) west	0in (0mm) 0 %	80%
Nov. 27	Broken clouds	46 °F 43°F	8 °C 6°C	4mph (6km/h) east-southeast	0in (0mm) 0 %	81%
Nov. 28	Broken clouds	48 °F 44°F	9 °C 6°C	4mph (7km/h) east-southeast	0in (0mm) 0 %	83%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Nov. 29	Overcast clouds	50 °F 46°F	10 °C 8°C	4mph (7km/h) southeast	0in (0mm) 0 %	85%
Nov. 30	Overcast clouds	51 °F 49°F	11 °C 10°C	5mph (8km/h) south-southeast	0in (0mm) 0 %	89%
Dec. 01	Overcast clouds	51 °F 47°F	10 °C 9°C	5mph (8km/h) south-southeast	0in (0mm) 0 %	87%
Dec. 02	Overcast clouds	49 °F 47°F	9 °C 9°C	5mph (8km/h) southeast	0in (0mm) 0 %	88%
Dec. 03	Overcast clouds	37 °F 30°F	3 °C -1°C	1mph (1km/h) east	0in (0mm) 0 %	93%
Dec. 04	Overcast clouds	39 °F 35°F	4 °C 2°C	1mph (2km/h) east-northeast	0in (0mm) 0 %	89%
Dec. 05	Scattered clouds	41 °F 35°F	5 °C 2°C	1mph (2km/h) east-northeast	0in (0mm) 0 %	88%
Dec. 06	Overcast clouds	40 °F 35°F	5 °C 1°C	1mph (2km/h) northeast	0in (0mm) 0 %	91%
Dec. 07	Overcast clouds	40 °F 38°F	5 °C 3°C	2mph (3km/h) east-northeast	0in (0mm) 15 %	89%

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 month with the lowest rain of 1.5in / 38.7mm and December with the highest precipitation in a year with 6.3in / 160.7mm. The avg. 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 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