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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the BritainNow weather desk. Data from national met services via Open-Meteo.
Portsmouth’s weather today, as the live forecast above shows, is typical for the south coast: changeable and breezy, with the best of any brightness arriving during the morning before cloud thickens later. You’ll want a light jacket if you’re heading to the seafront.
What’s the outlook for the next few days?
The pattern stays unsettled through midweek, with a brisk south-westerly flow bringing frequent showers, especially on Wednesday. Temperatures will hover near average for late spring, around 13–15°C. If you’re checking the UK weather hub or the met office weather portsmouth page, you’ll see that Thursday looks drier and brighter for a time, though another band of rain may arrive by Friday.
How about longer-range forecasts for Portsmouth?
For those planning ahead, the weather in portsmouth 10 days outlook suggests a gradual shift to more settled conditions by the weekend, with lighter winds and longer sunny spells. However, the weather portsmouth 14 day forecast and portsmouth weather 15 days projections remain uncertain beyond next Monday, as low pressure lingers near the Channel. The portsmouth weather 30 days trend hints at a warmer, drier end to the month, but such long-range signals should be treated as a guide only.
Will it be windy at the seafront tomorrow?
Yes, expect a fresh south-westerly breeze of 15–20 mph with stronger gusts along the promenade. If you’re checking the weather in portsmouth tomorrow, factor in that wind will make it feel a few degrees cooler than the air temperature.
Is there a reliable portsmouth weather bbc forecast?
Yes, the BBC’s forecast for Portsmouth is updated several times daily and uses Met Office data. It’s a solid choice alongside the Met Office’s own site, especially for hourly breakdowns and tide times.
When will the rain ease this week?
Rain should ease by Thursday afternoon as a ridge of high pressure builds from the west. Friday looks largely dry but cloudy, with brighter spells returning by Saturday. Check the 10 Day Weather Forecast UK for updates.