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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the NewsPrism weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading out in Portsmouth today, as the city’s coastal position means conditions can shift quickly from bright intervals to blustery showers.
What is the weather like in Portsmouth today?
Portsmouth’s weather is shaped by the Solent and English Channel, often bringing cooler breezes and higher humidity than inland areas. The live forecast above shows the current temperature, wind speed, and any rain expected in the next few hours.
- Coastal fog can form in the morning, especially in spring and autumn, but usually lifts by midday.
- South-westerly winds are common, making exposed areas like Southsea seafront feel noticeably cooler.
- Rainfall is spread fairly evenly through the year, with no distinct dry season.
What is the outlook for the week ahead?
The 7-day trend for Portsmouth often alternates between Atlantic systems and brief settled spells. For a detailed view, see our 10 Day Weather Forecast UK page.
- Expect the weather in Portsmouth tomorrow to follow the pattern shown in the live forecast above, with any changes noted in the evening update.
- For longer-range planning, the weather in Portsmouth 10 days and weather portsmouth 14 day forecast give a general idea, though confidence drops after day seven.
- Extended outlooks such as portsmouth weather 15 days or portsmouth weather 30 days are best treated as broad trends rather than precise predictions.
How accurate is the met office weather portsmouth forecast?
The Met Office provides a reliable 5-day forecast for Portsmouth, with accuracy declining beyond that. The live forecast above is updated regularly and gives the best short-term guidance.
Does the BBC weather for Portsmouth differ from the Met Office?
Both the portsmouth weather bbc and Met Office use similar data sources, but the BBC presents it with a slightly different layout. The live forecast above is a concise alternative for quick checks.
When is the best time to visit Portsmouth for good weather?
Late May to early September offers the warmest and driest conditions, though sea breezes keep summer temperatures comfortable. Check the weather in portsmouth 10 days before planning a trip.
Sources
For other UK cities, see our UK weather hub, or check conditions in Birmingham, Liverpool, Glasgow, Bristol, or Sheffield.