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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the ScopePress weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Southampton’s live forecast above shows a high of 12°C and a low of 7°C, with moderate south-westerly winds and a 40% chance of rain by late afternoon. That means a mostly cloudy, mild day with a wet spell likely after 3pm.
What will the weather in Southampton be like tomorrow?
Tomorrow’s range is 8°C to 13°C, with a band of rain moving through around midday. Winds will ease to light south-easterly, making it feel cooler than today. The chance of any dry spells lasting more than two hours is low.
How does the 14-day outlook look for Southampton?
The 14 day weather forecast for Southampton shows a shift to drier, brighter conditions from Saturday onwards, with highs settling near 11°C. Overnight lows could dip to 4°C by the middle of next week, so frost is possible in the suburbs. For a longer view, the 21 day weather forecast suggests a return to unsettled westerly airflow after that.
What is the weather in Southampton like by month?
Southampton weather by month follows a mild maritime pattern: January averages 8°C/3°C, July 21°C/14°C. Rainfall peaks in December (70 mm) and is lowest in July (40 mm). Frost is rare after April.
Is the weather in Southampton 10 days reliable this far out?
For the weather in Southampton 10 days, confidence drops after day 7. The Met Office rates the 8–10 day forecast at medium reliability (60–70%), so check the live forecast above for updates.
What are the best months for settled weather in Southampton?
May to September offer the driest, warmest spells. September often brings calm, sunny days with sea temperatures still around 17°C. For the full picture, see the southampton weather yearly averages on our hub.
Sources
For the latest updates, check our UK weather hub or compare with Bristol Weather. If you need a longer view, our 10 Day Weather Forecast UK page covers the whole country.