Barometric Pressure
Barometric Pressure in Sri Lanka
We monitor barometric pressure across 0 cities in Sri Lanka, 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 Sri Lanka, with detailed readings city by city.
Sri Lanka Barometric Pressure Map
Depending on how many places we monitor in Sri Lanka, the map displays a sampled set of barometric pressure data to give a clear overview of current conditions.Trends Today
Here you can see which cities experienced the biggest and smallest changes in barometric pressure today. This helps highlight areas with the most stable or unstable weather patterns.
Most volatile
Least volatile
How is it calculated?
Our volatility “beta” number is generated by an algorithm that analyzes hourly barometric pressure changes. It looks at how much the pressure fluctuates from hour to hour. A beta of 0 means no change, perfectly stable pressure. The higher the decimal value, the more variation there has been throughout the day or over a longer period.
Weather Systems
Sri Lanka’s air pressure changes a lot because of the monsoon winds. The Southwest Monsoon (May–September) brings low pressure over land and high pressure over the Indian Ocean, causing strong winds and heavy rain. The Northeast Monsoon (December–February) reverses this, with high pressure over land and dry, cooler air.
Geography
Sri Lanka’s mountains, especially the Central Highlands, affect how air moves. When winds from the ocean hit the hills, air rises and cools, lowering the pressure and causing more rain on the western and southern slopes. Flat northern and eastern areas have more stable air and less pressure change.
Seasonal Cycles
Pressure patterns change with the seasons. During the inter-monsoon periods (April–May and October–November), air pressure is more balanced because winds are weaker and change direction often. Cyclones can sometimes lower pressure quickly, bringing storms and heavy rainfall.
Climate Change
Climate change is slowly shifting these pressure patterns. Temperatures are rising, which can weaken monsoon winds and make air pressure differences less strong. This may cause longer dry spells, sudden heavy rains, and more intense storms. Scientists watch these trends to predict how Sri Lanka’s weather is changing.
Places in Sri Lanka
You can find your city in the lists below, by using our search, or on the Sri Lanka Pressure Map above. We're tracking barometric pressure across multiple locations in Sri Lanka to keep you informed.
Each city includes a pressure status showing whether it's currently high, normal or low, along with two volatility values: one for today and one for the full period, usually 14 days. These help you see how much the pressure is changing over time.