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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Southampton Wire weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
The live forecast above shows the outlook for London, but for Southampton and the south coast the 14-day forecast signals a changeable pattern, with Atlantic systems bringing spells of rain and brisk winds, especially during the first week. Temperatures are likely to hover near the seasonal average for late spring.
What does the 14-day forecast mean for Southampton?
Southampton’s position on the Solent means coastal conditions often differ from inland areas. Over the next fortnight, expect a mix of dry, bright interludes and wetter, windier spells as low-pressure systems track across the UK. The UK weather hub provides daily updates, but the general trend suggests no prolonged settled weather. Night-time minima could dip to single figures during clearer periods, while daytime highs may reach the mid-teens Celsius. Those looking further ahead might check the bbc weather 21 day forecast for longer-term trends, though confidence decreases beyond ten days.
How does this compare with other UK cities?
Unlike Birmingham weather 14 day forecast, which often shows more continental influence, Southampton’s outlook is moderated by the sea. The bbc weather 14 day forecast london typically records slightly higher temperatures due to the urban heat island effect, but coastal breezes here can make it feel cooler. For those travelling, the bbc weather london 15 day forecast or bbc weather london 21 day forecast may offer a useful contrast, though the bbc weather europe 14 day forecast is better suited for cross-channel trips.
How reliable is a 14-day weather forecast?
Beyond seven days, forecast accuracy drops significantly. The 14-day outlook gives a general trend—such as unsettled or settled—rather than precise daily details. Check the live forecast above for the latest updates.
Where can I find a 14-day forecast for Birmingham?
The birmingham weather 14 day forecast is available on our dedicated Birmingham Weather page. It follows the same model as the Southampton forecast but accounts for inland conditions.
Does BBC Weather offer a 21-day forecast?
Yes, the bbc weather 21 day forecast is an extended outlook, though with lower reliability. It is useful for spotting broad patterns, such as a shift to high pressure, but should not be relied upon for planning specific days.