Average temperatures, rainfall and packing tips for Southampton, United Kingdom in May
May in Southampton is typically mild, with average daytime highs around 17°C and nights near 9°C. Temperature-wise it sits mid-range for Southampton (the 5th warmest month).
May is one of the wetter months in Southampton, with around 90 mm of rain - plan around showers.
If your dates are flexible, the most comfortable months in Southampton are usually June, July, August and September.
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In May, Southampton averages a daytime high of about 17°C and a night-time low of around 9°C, based on recent historical data.
May is one of the wetter months in Southampton, with around 90 mm of rain - plan around showers.
May is a workable time to visit Southampton, with mild days - just pack accordingly. If your dates are flexible, the most comfortable months in Southampton are usually June, July, August and September.