Residents in Southampton should prepare for a week of changeable and chilly nights, as the Met Office warns of overnight temperatures dropping well below the seasonal average. Throughout the week of 8 May to 14 May 2026, the area will experience a mix of sunny intervals and frequent showers, alongside sharp temperature swings between day and night.
While daytime temperatures are expected to reach as high as 21C on Saturday, nights will feel notably colder. Forecasts suggest overnight lows will dip to around 4C to 6C, which is significantly cooler than the typical 9C average for this time of year in Southampton. These conditions are expected to remain unsettled through 21 May, with periods of rain and showers continuing to dominate the local weather.
Sunday, 10 May, is set to be the windiest day of the week, with gusts anticipated to reach up to 33mph during the afternoon. The combination of cold night-time temperatures and clear spells over the coming nights could lead to a touch of grass frost in rural areas around Hampshire. Locals are advised to keep a light jacket and umbrella close by to manage the fluctuating conditions throughout the week.
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