Weather Merthyr Tydfil

Daily forecast
Day Weather Maximum Day Temperature Minimum Night Temperature Wind Direction and Speed

Light Cloud

13°C 55°F 11°C 52°F South South Westerly
23km/h 14mph

Heavy Rain Shower

12°C 54°F 6°C 43°F West South Westerly
13km/h 8mph

Heavy Rain Shower

9°C 48°F 5°C 41°F South Westerly
19km/h 12mph

Light Cloud

9°C 48°F 3°C 37°F West North Westerly
13km/h 8mph


9°C 48°F 3°C 37°F Northerly
11km/h 7mph



Sunrise 07:07 Sunset 16:46

Last updated 12:10

Weather forecast details for Saturday 1 November. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 1500 hours1800 hours2100 hours0000 hours
0300 hours   
Weather Conditions Light Cloud Heavy Rain Heavy Rain Heavy Rain Light Rain    
Temperature (°C/°F) 13°C 55°F 12°C 54°F 13°C 55°F 13°C 55°F 13°C 55°F    
Wind Speed (mph/km/h) 18km/h 11mph South South Westerly 19km/h 12mph Southerly 24km/h 15mph South South Westerly 24km/h 15mph South South Westerly 19km/h 12mph South Westerly    
Wind Direction SSW S SSW SSW SW    
Humidity 75% 91% 92% 94% 89%    
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) VG M P P G    
Pressure (Millibars) 1012 1009 1006 1004 1003    


Forecast Summary

  • Today

    Early rain should soon clear leaving a largely dry and fine morning with sunny spells, though feeling a little cooler than yesterday. The breeze will strengthen and cloud will thicken this afternoon, with rain reaching western areas later this afternoon.

  • Tonight

    Rain spreading across all parts this evening, leading to a wet and windy night, rain heavy at times, especially over hills, and gales in exposure. Large accumulations possible across Snowdonia.

Environmental Summary

UV: 1

UK Range: 1-7

Pollution: Low

UK Range: Low to Very High

Pollen: Moderate

UK Range: Low to Very High

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BBC Wales Today

BBC Wales Today Forecast Last updated 19:06, Friday 31 Oct Forecast updated Monday to Friday only


UK Forecast Last updated 11:54, Saturday 1 Nov


Observed at 11:00, Saturday 1 November


14°C 57°F

27km/h 17mph South Westerly

Humidity: 70%

Visibility: Very Good

Pressure: 1015mb, Rising

Observation station: Sennybridge

(Lat: 52.067 | Lon: -3.617)

BBC Weather in association with the Met Office

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