Home › Weather › Portsmouth Weather
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 ·
Portsmouth’s weather is shaped by its south-coast position, bringing milder winters and cooler summers than inland areas, but also a higher chance of sea fog and brisk south-westerly winds. Check the live forecast above for today’s precise conditions.
What is the outlook for the next few days?
The live forecast above shows the immediate trend, but expect a typical mix of sunny spells and passing showers driven by Atlantic low-pressure systems. Overnight lows in summer hover around 13–15°C, while winter nights rarely drop below 2°C due to the warming effect of the English Channel. For a longer view, see the 10-day forecast for Portsmouth.
How reliable are long-range forecasts for Portsmouth?
Beyond ten days, confidence drops sharply. The weather in Portsmouth 14 day forecast and Portsmouth weather 30 days outlooks are useful for spotting broad trends—such as a settled spell or a wetter phase—but day-by-day accuracy is limited. For planning, check the Met Office weather Portsmouth updates daily.
Frequently Asked Questions
What is the weather in Portsmouth tomorrow?
For the most accurate weather in Portsmouth tomorrow, refer to the live forecast above. Typically, you can expect a similar pattern to today, with overnight lows around 10–14°C and a chance of light drizzle if a front passes.
Where can I find the best forecast for Portsmouth?
The Met Office weather Portsmouth page provides official warnings and detailed charts, while the Portsmouth weather BBC service offers a clear hourly breakdown. Both are reliable for daily planning.
How accurate is the weather in Portsmouth 10 days ahead?
A weather in Portsmouth 10 days forecast is generally reliable for temperature trends and broad weather patterns, but shower timings become less certain after day five. For a longer horizon, a Portsmouth weather 15 days outlook is best used as a guide rather than a guarantee.
For more UK-wide conditions, visit the UK weather hub or compare with Bristol weather and Glasgow weather.