Barometric Pressure
Barometric Pressure in Heard Island and McDonald Islands
We monitor barometric pressure across 0 cities in Heard Island and McDonald Islands, giving you up-to-date insights into local weather patterns.
Whether you're tracking pressure changes for health reasons, planning outdoor activities, or planning a fishing trip, our data is tailored to conditions in Heard Island and McDonald Islands, with detailed readings city by city.
Heard Island and McDonald Islands Barometric Pressure Map
Depending on how many places we monitor in Heard Island and McDonald Islands, the map displays a sampled set of barometric pressure data to give a clear overview of current conditions.Weather Systems
Heard Island and McDonald Islands are surrounded by the stormy Southern Ocean. Most weather systems here are strong low-pressure areas called cyclones. These cyclones pass over the islands often, bringing changes in air pressure. High-pressure systems are rare and less powerful.
Geography
Mountains and glaciers on Heard Island affect local air pressure. Wind flows around the high mountains, creating pockets of low and high pressure in different spots. The islands’ location far from continents means ocean winds have a big influence on pressure changes.
Seasonal Cycles
Air pressure is generally lower during winter because more storms pass by. In summer, the storms are less frequent and pressure is a little higher. The changes repeat each year, but the winters often have the biggest drops in pressure.
Climate Change
Climate change is making the Southern Ocean slightly warmer, which changes storm strength and location. Scientists have noticed that cyclones are becoming stronger or more common in some seasons, making the air pressure drop lower than before. This could mean stormier weather in the future.
Places in Heard Island and McDonald Islands
You can find your city in the lists below, by using our search, or on the Heard Island and McDonald Islands Pressure Map above. We're tracking barometric pressure across multiple locations in Heard Island and McDonald Islands to keep you informed.
Each city includes a detailed page with hourly and 14-day forecasts. These help you see how much the pressure is changing over time.