Merthyr Tydfil Weather History Merthyr Tydfil, United Kingdom

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
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Thu 04 Sep, 2025 Weather in Merthyr Tydfil

Sunrise: 06:31 AM Sunset: 07:53 PM	Moonrise: 06:56 PM Moonset: 01:41 AM	Max: 16.2 °c	Min: 9.0 °c	Avg: 11.9 °c	Precip: 3.30 mm	Max Wind: 24.1 kph

	Thu 04 0:00 am	Thu 04 3:00 am	Thu 04 6:00 am	Thu 04 9:00 am	Thu 04 12:00 pm	Thu 04 3:00 pm	Thu 04 6:00 pm	Thu 04 9:00 pm
Icon
Temp	10.5°c	9.6°c	10.5°c	11.5°c	15.3°c	16.0°c	13.3°c	9.4°c
Wind	12.2 kmph	7.9 kmph	2.2 kmph	7.6 kmph	16.6 kmph	22.3 kmph	17.3 kmph	5.4 kmph
Precip	0.00 mm	0.10 mm	0.30 mm	0.40 mm	0.30 mm	0.10 mm	0.00 mm	0.00 mm
Cloud	81%	100%	100%	80%	75%	80%	39%	13%
Humidity	95%	98%	97%	94%	72%	65%	84%	95%
Pressure	1003 mb	1003 mb	1003 mb	1005 mb	1006 mb	1007 mb	1009 mb	1012 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 / 35°F	4°C / 39°F	92 hours	110.29 mm / 4.34 In	11 days	1015 mb / 30 In
February	7°C / 44°F	2°C / 35°F	4°C / 40°F	69 hours	99.03 mm / 3.90 In	10 days	1015 mb / 30 In
March	9°C / 48°F	2°C / 36°F	5°C / 42°F	102 hours	94.01 mm / 3.70 In	10 days	1015 mb / 30 In
April	11°C / 52°F	4°C / 39°F	8°C / 46°F	112 hours	73.65 mm / 2.90 In	9 days	1016 mb / 30 In
May	14°C / 57°F	7°C / 44°F	10°C / 51°F	111 hours	94.54 mm / 3.72 In	10 days	1017 mb / 30 In
June	17°C / 62°F	10°C / 49°F	13°C / 56°F	105 hours	100.01 mm / 3.94 In	9 days	1016 mb / 30 In
July	18°C / 65°F	11°C / 52°F	15°C / 59°F	103 hours	95.18 mm / 3.75 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	109 hours	81.94 mm / 3.23 In	8 days	1016 mb / 30 In
October	13°C / 55°F	8°C / 46°F	10°C / 50°F	81 hours	115.94 mm / 4.56 In	10 days	1014 mb / 30 In
November	9°C / 48°F	5°C / 40°F	7°C / 44°F	78 hours	127.49 mm / 5.02 In	11 days	1011 mb / 30 In
December	7°C / 45°F	3°C / 37°F	5°C / 41°F	78 hours	131.91 mm / 5.19 In	12 days	1013 mb / 30 In

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