Mountain Ash Weather History Mid Glamorgan, United Kingdom

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Daily and hourly data from 1 Jan 2009 onwards.
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Tue 19 May, 2026 Weather in Mountain Ash

Sunrise: 05:16 AM Sunset: 09:06 PM	Moonrise: 06:50 AM Moonset: 12:07 AM	Max: 13.7 °c	Min: 9.1 °c	Avg: 11.5 °c	Precip: 22.80 mm	Max Wind: 37.1 kph

	Tue 19 0:00 am	Tue 19 3:00 am	Tue 19 6:00 am	Tue 19 9:00 am	Tue 19 12:00 pm	Tue 19 3:00 pm	Tue 19 6:00 pm	Tue 19 9:00 pm
Icon
Temp	9.1°c	10.1°c	11.3°c	11.5°c	12.9°c	13.7°c	12.1°c	11.1°c
Wind	20.9 kmph	25.2 kmph	22.0 kmph	22.0 kmph	31.3 kmph	31.8 kmph	34.9 kmph	29.5 kmph
Precip	1.70 mm	1.60 mm	0.80 mm	0.20 mm	0.50 mm	0.80 mm	1.20 mm	0.60 mm
Cloud	100%	100%	100%	100%	87%	75%	62%	100%
Humidity	98%	98%	98%	95%	90%	80%	88%	91%
Pressure	1006 mb	1004 mb	1002 mb	1004 mb	1004 mb	1006 mb	1008 mb	1008 mb

Mountain Ash Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	7°C / 44°F	2°C / 36°F	5°C / 40°F	100 hours	99.99 mm / 3.94 In	10 days	1014 mb / 30 In
February	7°C / 45°F	3°C / 37°F	5°C / 41°F	76 hours	91.71 mm / 3.61 In	9 days	1014 mb / 30 In
March	9°C / 49°F	3°C / 38°F	6°C / 43°F	108 hours	78.63 mm / 3.10 In	8 days	1015 mb / 30 In
April	12°C / 54°F	5°C / 40°F	8°C / 47°F	126 hours	66.47 mm / 2.62 In	9 days	1016 mb / 30 In
May	15°C / 59°F	8°C / 46°F	11°C / 52°F	126 hours	88.76 mm / 3.49 In	9 days	1017 mb / 31 In
June	17°C / 63°F	10°C / 51°F	14°C / 57°F	115 hours	87.58 mm / 3.45 In	8 days	1016 mb / 30 In
July	19°C / 66°F	12°C / 54°F	16°C / 60°F	115 hours	86.48 mm / 3.40 In	9 days	1015 mb / 30 In
August	19°C / 66°F	12°C / 54°F	15°C / 60°F	114 hours	92.91 mm / 3.66 In	9 days	1015 mb / 30 In
September	17°C / 62°F	10°C / 51°F	14°C / 56°F	123 hours	77.99 mm / 3.07 In	7 days	1016 mb / 30 In
October	14°C / 57°F	9°C / 47°F	11°C / 52°F	94 hours	113.37 mm / 4.46 In	9 days	1014 mb / 30 In
November	10°C / 50°F	6°C / 42°F	8°C / 46°F	90 hours	119.03 mm / 4.69 In	10 days	1011 mb / 30 In
December	8°C / 46°F	4°C / 39°F	6°C / 43°F	85 hours	123.44 mm / 4.86 In	10 days	1013 mb / 30 In

Mid Glamorgan

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