Duffryn Pressure & Humidity
Vale of Glamorgan, The — Barometric Trends
Duffryn Pressure & Humidity Outlook
For Duffryn today, pressure is around 995 mb, notably low for the season, with plenty of moisture in the air, giving it a damp feel early on. That favours a more variable day, with timing and wind making the biggest difference. With a wide spread in values, the background feel can swing between steadier and more mixed spells. A gentle rise later on would slightly favour more settled spells.
Across the next several days, pressure looks set to vary between 997 mb up to 1025 mb over the coming days. 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
This page focuses on practical interpretation for Duffryn. When the guidance becomes mixed, it is usually a regime question first, rather than a single hourly detail.
- England Climate for regional patterns and seasonal tendencies.
- UK Climate Overview for a national baseline and how regions compare.
- England 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 Duffryn today?
Atmospheric pressure in Duffryn is currently around 995 mb. It provides useful background context — especially whether the wider pattern leans more settled or more changeable. Humidity sits near 94%, which can make the air feel damp and increase the chance of haze or low cloud in lighter winds. Later in the outlook, pressure trends a little higher, which can bring quieter interludes at times.
What counts as high or low pressure in the UK?
In UK terms, pressure in the low 1020s (around 1020 mb–1024 mb) often supports a steadier background, while the low 1000s (around 1000 mb–1004 mb) more often sits closer to passing low-pressure systems. What matters most is the wider pattern and whether pressure is rising or falling.
How does pressure affect wind in Duffryn?
Pressure influences wind through the regional gradient. When the pattern tightens, winds can pick up; when it relaxes, winds usually ease.
Does low pressure always mean rain in Duffryn?
Not necessarily. Low pressure favours rising motion and cloud development, but rainfall depends on available moisture, frontal features and the track of the system. Some low-pressure days are simply cloudy and breezy with only patchy showers.
What does humidity mean for comfort in Duffryn?
It is the amount of water vapour in the air relative to its capacity at that temperature. When humidity is high, evaporation slows and the air can feel damp; when it is lower, comfort and visibility often improve. Humidity sits in a fairly typical range overall, so comfort and visibility can depend more on wind, temperature and cloud cover day to day.