Best year time to visit Merthyr Tydfil

General weather information about Merthyr Tydfil

Average annual temperature is 10.4 °C

Absolute maximum temperature: 26.4 °C

Absolute minimum temperature: -3.9 °C

Number of sunny days: 89 days

Number of rainy days: 273 days

Number of snow days: 3 days

Look at detailed online map of Merthyr Tydfil

* Weather data for Merthyr Tydfil United Kingdom is based on climate observations for 2026 year

Merthyr Tydfil air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	11.0	11.6	12.4	15.7	19.7	24.9	22.9	22.9	26.4	22.3	13.0	11.7
Average daytime temperature (°C)	6.9	8.2	8.4	11.0	16.4	20.6	17.4	18.2	19.0	14.2	9.3	8.5
Average temperature (°C)	4.6	5.6	6.1	7.7	12.3	16.4	14.7	15.1	16.0	11.8	7.1	6.8
Average night temperature (°C)	2.2	2.9	3.9	4.2	8.2	12.0	11.7	12.2	12.8	9.7	4.9	4.8
Absolute minimum temperature (°C)	-3.6	-2.1	-1.1	-1.0	5.1	6.8	8.1	9.1	6.9	3.9	-2.4	-3.9

Merthyr Tydfil monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	10.0	12.0	14.0	16.0	16.0	16.0	15.0	13.0	11.0	9.0	8.0
Daylight mean duration (h)	8.4	10.0	11.9	13.9	15.7	16.6	16.1	14.6	12.7	10.7	8.9	7.9
Daylight minimum duration (h)	7.0	9.0	10.0	12.0	14.0	16.0	15.0	13.0	11.0	9.0	8.0	7.0
Sunshine mean duration (h)	3.5	4.2	4.0	6.8	11.3	11.7	9.0	8.6	7.3	5.1	3.4	1.7
Precipitation (mm)	225	17	218	111	47	66	178	121	142	166	129	251
Sunny days	12	11	3	8	14	13	1	2	7	6	9	3
Rainy days	18	17	27	22	17	17	30	29	23	25	21	27
Snow days	1	0	1	0	0	0	0	0	0	0	0	1

Merthyr Tydfil - weather forecast by months

Merthyr Tydfil weather in january Merthyr Tydfil weather in february Merthyr Tydfil weather in march Merthyr Tydfil weather in april Merthyr Tydfil weather in may Merthyr Tydfil weather in june Merthyr Tydfil weather in july Merthyr Tydfil weather in august Merthyr Tydfil weather in september Merthyr Tydfil weather in october Merthyr Tydfil weather in november Merthyr Tydfil weather in december

Best time to visit Merthyr Tydfil:

The best time to visit Merthyr Tydfil during the most sunny months:

May — 11.3(h)
June — 11.7(h)
July — 9.0(h)
August — 8.6(h)

Months with the longest average daylight duration in Merthyr Tydfil:

May — 15.7(h)
June — 16.6(h)
July — 16.1(h)

The largest precipitation sum in Merthyr Tydfil is at

January — 225(mm)

March — 218(mm)

July — 178(mm)

December — 251(mm)

Weather forecast in the closest to Merthyr Tydfil admin centers