Merthyr Tydfil Weather History Merthyr Tydfil, United Kingdom

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Daily and hourly data from 1 Jan 2009 onwards.
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Sat 29 Aug, 2026 Weather in Merthyr Tydfil

Sunrise: 06:21 AM Sunset: 08:07 PM	Moonrise: 08:21 PM Moonset: 07:54 AM	Max: 17.0 °c	Min: 12.1 °c	Avg: 14.0 °c	Precip: 11.17 mm	Max Wind: 20.9 kph

	Sat 29 0:00 am	Sat 29 3:00 am	Sat 29 6:00 am	Sat 29 9:00 am	Sat 29 12:00 pm	Sat 29 3:00 pm	Sat 29 6:00 pm	Sat 29 9:00 pm
Icon
Temp	14.0°c	13.4°c	13.0°c	12.5°c	14.0°c	15.0°c	17.0°c	14.4°c
Wind	20.9 kmph	12.6 kmph	11.2 kmph	14.0 kmph	8.6 kmph	10.8 kmph	11.5 kmph	18.7 kmph
Precip	0.01 mm	0.05 mm	0.49 mm	4.34 mm	1.64 mm	0.09 mm	0.01 mm	0.01 mm
Cloud	100%	100%	100%	100%	100%	100%	100%	100%
Humidity	88%	95%	96%	98%	97%	89%	77%	95%
Pressure	1007 mb	1006 mb	1004 mb	1002 mb	1001 mb	999 mb	1001 mb	1004 mb

Merthyr Tydfil Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	6°C / 43°F	1°C / 34°F	4°C / 39°F	90 hours	114.34 mm / 4.50 In	11 days	1014 mb / 30 In
February	7°C / 44°F	2°C / 36°F	4°C / 40°F	67 hours	101.46 mm / 3.99 In	10 days	1014 mb / 30 In
March	9°C / 48°F	2°C / 36°F	6°C / 42°F	100 hours	92.43 mm / 3.64 In	9 days	1015 mb / 30 In
April	11°C / 52°F	4°C / 39°F	8°C / 46°F	113 hours	71.22 mm / 2.80 In	9 days	1016 mb / 30 In
May	14°C / 57°F	7°C / 44°F	11°C / 51°F	104 hours	94.86 mm / 3.73 In	9 days	1017 mb / 30 In
June	17°C / 62°F	10°C / 49°F	13°C / 56°F	99 hours	104.23 mm / 4.10 In	9 days	1016 mb / 30 In
July	19°C / 66°F	11°C / 52°F	15°C / 59°F	97 hours	90.24 mm / 3.55 In	9 days	1015 mb / 30 In
August	18°C / 64°F	11°C / 52°F	15°C / 58°F	100 hours	98.60 mm / 3.88 In	10 days	1015 mb / 30 In
September	16°C / 61°F	10°C / 49°F	13°C / 55°F	108 hours	84.82 mm / 3.34 In	8 days	1016 mb / 30 In
October	13°C / 55°F	8°C / 46°F	10°C / 50°F	83 hours	115.93 mm / 4.56 In	9 days	1014 mb / 30 In
November	9°C / 48°F	5°C / 40°F	7°C / 44°F	78 hours	130.05 mm / 5.12 In	11 days	1011 mb / 30 In
December	7°C / 45°F	3°C / 37°F	5°C / 41°F	77 hours	140.61 mm / 5.54 In	11 days	1013 mb / 30 In

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