The blue moon occurs around every two or three years and gets its name for being an extra 13th full moon in the year.
Despite its name, the moon will not be the colour blue although it can appear to have a blue hue to it in rare circumstances.
This is caused by haze and dust particles in the atmosphere.
The last blue moon was in August 2024, according to Royal Greenwich Museums.
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It will appear above the county on Sunday, May 31 and coincides with the micro moon.
The micro moon happens when the moon reaches its furthest point from the Earth, which is around 250,000 miles away according to experts.
The moon will be smaller and dimmer than usual although it may not be seem so to a naked eye.
Instead the best way to see the difference is with a photograph comparing it to a regular moon and a supermoon.
The next blue moons are not expected to appear in the skies until May 20, 2027, and December 31, 2028.