Explore flu trends around the world

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We've found that certain search terms are good indicators of flu activity. Google Flu Trends uses aggregated Google search data to estimate flu activity up to two weeks faster than traditional systems. Learn more »

Southern hemisphere

Influenza is currently more active in the southern hemisphere, where flu season typically spans from May to September, the southern autumn and winter months.
Current flu season (2009)  Past years
Australia  Moderate
Map of Australia
Jan  Feb  Mar  Apr  May  Jun  Jul  Aug  Sep  Oct  Nov  Dec
New Zealand  High
Map of New Zealand
Jan  Feb  Mar  Apr  May  Jun  Jul  Aug  Sep  Oct  Nov  Dec

Northern hemisphere

The flu season in the northern hemisphere typically spans from November to March, the northern autumn and winter months.
*Current flu season (2008-2009)  *Past years
United States  Minimal
Map of the US
Jul  Aug  Sep  Oct  Nov  Dec  Jan  Feb  Mar  Apr  May  Jun
Mexico (Experimental)  Minimal
Map of Mexico
Jul  Aug  Sep  Oct  Nov  Dec  Jan  Feb  Mar  Apr  May  Jun