Llanfair-Dyffryn-Clwyd Pressure & Humidity
Denbighshire — Barometric Trends
Llanfair-Dyffryn-Clwyd Pressure & Humidity Outlook
Today in Llanfair-Dyffryn-Clwyd, the barometer sits near 991 mb, firmly on the low side, with humidity sitting in a comfortable middle range. That keeps the background more unsettled, with conditions more likely to shift as systems move through. With a wide spread in values, the background feel can swing between steadier and more mixed spells. The later rise can help conditions calm down in places.
Looking ahead, pressure is expected to range between 992 mb up to 1026 mb during the period ahead. Pressure trends higher through the coming days, favouring quieter spells at times. Moisture levels fluctuate within a fairly typical range for the time of year.
Current Readings
Pressure
Humidity
Dew Point
Today’s Hourly Humidity
Today’s Hourly Pressure
14-Day Trends
Humidity Chart
Pressure Chart
Forecast context and reference links
Across Wales, local effects can shift outcomes even when the national pattern is similar. Coastal exposure, terrain, and airflow direction often explain the difference between a near-miss and a wet day.
- Wales Climate for regional patterns and seasonal tendencies.
- UK Climate Overview for a national baseline and how regions compare.
- Wales for location browsing and regional navigation.
How to interpret confidence
For how forecast reliability changes with lead time, see Forecast Confidence. For transparency on how WeatherEngland sources and updates data, see Methodology.
Background guides
- UK Weather Patterns
- UK Seasonal Weather
- UK Weather Hazards
- UK Weather Safety
- UK Jet Stream
- UK Microclimates
Glossary support
Start with the Weather Glossary. Useful terms for this page include Isobar, Pressure Gradient, Relative Humidity, Dew Point, Anticyclone, and Depression.
FAQ
What is the air pressure in Llanfair-Dyffryn-Clwyd today?
In Llanfair-Dyffryn-Clwyd today, pressure is around 991 mb. It gives a sense of the overall pattern, though the local detail still comes down to cloud cover and wind. Looking further ahead, pressure edges higher overall, which can favour a steadier background later in the period.
What counts as high or low pressure in the UK?
There is no single cut-off, but as a practical UK guide: the low 1020s (around 1020 mb–1024 mb) often leans more settled, while the low 1000s (around 1000 mb–1004 mb) is more commonly tied to Atlantic lows nearby. The pressure gradient and the direction of travel are usually more telling than the exact number.
How does pressure affect wind in Llanfair-Dyffryn-Clwyd?
It is not the absolute pressure that matters most, but how steeply it changes from place to place. A sharper gradient can bring brisk winds; a weaker gradient tends to keep winds lighter.
Does low pressure always mean rain in Llanfair-Dyffryn-Clwyd?
It can raise the risk of showers or rain, but it does not guarantee it. The detail depends on fronts, moisture supply and how the system moves through the region.
What does humidity mean for comfort in Llanfair-Dyffryn-Clwyd?
Humidity describes how close the air is to being saturated. Higher humidity can feel clammy and can support haze or low cloud in calmer conditions; lower humidity often feels crisper and helps things dry more quickly. Humidity is generally typical, with day-to-day comfort shaped more by wind and cloud than by a persistent moisture signal.