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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the UK Bullet weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Southampton’s weather today, as shown in the live forecast above, brings a mix of cloud and bright spells with a moderate breeze off the Solent – typical for this coastal city, though you may want a light jacket if heading out later.
What’s the outlook for the next few days?
The live forecast indicates a settled pattern for the coming week. For weather in Southampton tomorrow, expect similar conditions with patchy cloud and occasional sunny intervals. Looking further ahead, the weather in Southampton 10 days currently shows low pressure moving in from the Atlantic, bringing a chance of showers by midweek. The 14 day weather forecast Southampton suggests a return to drier, breezier conditions, while the 21 day weather forecast Southampton remains uncertain – longer-range models hint at a brief cooler spell, but confidence is low beyond 10 days. For those planning ahead, the Southampton weather forecast 15 days can give a general trend, though day-to-day accuracy drops after a week.
How does Southampton weather change across the year?
Southampton’s coastal position moderates extremes. For Southampton weather by month, winter lows average around 3–4°C with occasional frost; summer highs reach about 21°C in July. The Southampton weather yearly pattern shows rainfall spread fairly evenly, with autumn and winter slightly wetter – about 80mm per month compared to 50–60mm in spring and summer. Gales are most likely from November to February, so check the 10 day forecast before planning outdoor activities.
Does Southampton get a lot of rain?
Southampton receives around 788mm of rain per year – similar to the UK average. Rain is fairly evenly spread, but autumn and winter can be wetter due to Atlantic weather systems passing over the city.
When is the best time to visit Southampton?
Late May to early September offers the most reliable warmth and sunshine. July averages highs of 21°C, with lighter winds and longer daylight hours – ideal for exploring the waterfront or the New Forest nearby.
Is Southampton weather often windy?
Yes, especially in winter when Atlantic lows bring strong south-westerly winds. The Solent can funnel gusts, making exposed coastal spots noticeably breezier. Summer winds are generally lighter but still common.
Sources
For more UK forecasts, visit our weather hub, or check the Bristol weather page for another south-coast perspective. Longer-range predictions are available in our 10 Day Weather Forecast UK guide.