Portland Weather
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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the British News Desk weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
The live forecast above shows the current conditions for Portland, Dorset, based on Met Office data; expect a blend of coastal cloud and sunshine typical for the Isle of Portland, with wind and visibility being the key factors for harbour activities.
What does the Met Office forecast for Portland mean for your day?
The Met Office issues specific forecasts for Portland that account for its exposed peninsula location, where weather can shift quickly due to sea breezes. For day-to-day planning, check the wind speed and direction in the live forecast above – this determines conditions for sailing in Portland Harbour or walking along Chesil Beach. The “feels-like” temperature is often cooler than the air temperature due to the persistent onshore wind.
How reliable is the long range forecast for Portland?
For planning ahead, the weather portland dorset 14 days outlook gives a general trend, but confidence drops significantly after day 5 due to local coastal effects. The Met Office advises that for specific harbour use – such as at weather portland harbour – you should rely on the 24–48 hour forecast, which has higher accuracy for wind and visibility changes.
Why is Portland weather different from Weymouth?
Portland sits further out to sea, so it experiences stronger winds and less shelter than Weymouth Bay. The met office weather weymouth and portland forecast often differs by 2–3°C and several knots of wind.
What is the best time to visit Portland Harbour for calm conditions?
Early mornings, before 10am, typically have the lightest winds. Check the met office portland harbour tide and wind tables for the most accurate slot, as afternoon sea breezes can pick up quickly.
Can I trust a long range weather portland dorset forecast for a holiday?
Use it as a broad guide only. The long range weather portland dorset outlook is useful for trend spotting (e.g., settled or unsettled), but finalise plans using the 3-day forecast for reliability.
For a broader outlook across the country, visit our UK weather hub or check the 10 Day Weather Forecast UK. For nearby conditions, see our Bristol Weather page.
