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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Edinburgh Wire weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Portsmouth’s weather today, as shown in the live forecast above, brings a mix of cloud and bright spells typical of a South Coast autumn day. Being a peninsular city, conditions are heavily influenced by the Solent and the English Channel, with breezes that can freshen quickly.
What does the forecast look like for the next few days?
The outlook for Portsmouth over the coming days points to a generally unsettled pattern, with low pressure nearby. Tomorrow, the weather in Portsmouth tomorrow is expected to see more cloud and a chance of light rain by late afternoon. For those planning ahead, the weather in Portsmouth 10 days shows a gradual return to drier conditions toward the end of the period, although a weather portsmouth 14 day forecast and portsmouth weather 15 days remain uncertain this far out. Longer-range models for portsmouth weather 30 days suggest a shift to milder, showery westerlies.
How does the Solent shape local conditions here?
Portsmouth’s position on Portsea Island means the sea moderates temperatures year-round, keeping winter frosts less severe than inland Hampshire and summer highs a degree or two lower. The strong tidal flows in the Solent also influence wind direction and humidity, so a met office weather portsmouth forecast often notes a sea-breeze front arriving by mid-morning. For reliable updates, many locals check portsmouth weather bbc for hourly detail, while we also cross-reference official data to keep this page accurate.
Is Portsmouth windier than other UK cities?
Yes, because it sits on a narrow peninsula with open exposure to the Solent. Steady 15–20mph sea breezes are common, especially on summer afternoons, though damaging gales are rare except during deep Atlantic lows.
When is the best time to visit for settled weather?
Late May to early July often brings the longest dry spells, with lighter winds and fewer Atlantic systems. September can also be pleasant, though sea fog (haar) sometimes rolls in during spring and early summer mornings.
Does Portsmouth get snow?
Snowfall is infrequent because the city’s coastal position keeps temperatures a degree or two above inland areas. When snow does fall, it usually melts within hours; only the South Downs see significant accumulation.
Sources
For more UK-wide outlooks, visit our UK weather hub or see the 10 Day Weather Forecast UK. If you’re comparing conditions along the South Coast, our Bristol Weather page may also be useful.