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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Civic Insight weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Portsmouth’s weather today, shaped by its exposed position on the south coast, is best read from the live forecast above. Expect a mix of sea breezes and cloud, with conditions often changing quickly along the Solent.
What is the outlook for Portsmouth this week?
The live forecast above shows the immediate trend for the city and its coastal neighbours, from Southsea to Old Portsmouth. Given its harbour setting, temperatures here typically feel a couple of degrees cooler than inland spots like Waterlooville, especially when a south-westerly wind picks up. For a detailed look ahead, check the 10 day weather forecast UK for the wider region.
How does the coast affect Portsmouth’s weather?
Portsmouth’s peninsula location means it often catches the first of any Atlantic weather systems. The sea moderates extremes, so frosts are less common than in nearby rural areas, but the city can be noticeably windier. Those checking the UK weather hub will see that the Solent frequently creates its own local cloud patterns.
What is the weather in Portsmouth tomorrow?
The live forecast above gives the most accurate view for tomorrow. In general, Portsmouth’s tomorrows are often influenced by the same pressure system affecting the Solent, so expect a similar pattern to today unless a front is moving in from the Atlantic.
Where can I find the Met Office weather for Portsmouth?
The Met Office provides official data for the city. Many locals also check the BBC for Portsmouth weather, which uses Met Office data. For longer-range planning, look at the weather in Portsmouth 10 days or a Portsmouth weather 14 day forecast from trusted sources.
Is a 30-day forecast reliable for Portsmouth?
Extended outlooks, such as a Portsmouth weather 30 days or Portsmouth weather 15 days, give a broad trend but are less reliable than the 5-day view. The city’s coastal position means small shifts in wind direction can change the forecast quickly, so always refer to the live forecast above for the latest.