Barometric Pressure in Tonmawr, United Kingdom 
1013 hPa
15.0 ℃
50%
3.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Tonmawr hour by hour across the next 6 hourly readings.
Tonmawr has changeable weather. Low-pressure systems often bring rain, while high-pressure systems bring clearer skies. Air pressure drops when low-pressure systems move in.
Tonmawr's geography affects air pressure. The village is in a valley in the South Wales Valleys. Mountains surround it, which can block or redirect airflow.
In winter, low pressure dominates, bringing rain and strong winds. Summer has more high-pressure systems, leading to warmer and sunnier spells.
Tonmawr has an oceanic climate. This means it experiences mild temperatures and rainfall throughout the year. The climate leads to relatively stable air pressure.