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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 ·
Check the live forecast above for Guernsey’s current conditions, then plan ahead with our concise breakdown for St Peter Port and across the island – including radar, 10-day outlook and local updates.
What is the weather like in Guernsey today?
Guernsey enjoys a mild maritime climate, with the live forecast above showing the latest conditions for St Peter Port. Coastal areas can be breezier than inland spots, so the weather in Guernsey 10 days outlook helps you prepare for any shifts.
How does the weather vary across the island?
The microclimate around St Peter Port is sheltered, while exposed spots like Fox or the west coast see stronger winds. For detailed radar and localised data, refer to guernsey weather radar and xc weather guernsey resources. St Sampsons often mirrors the capital but can be slightly cooler due to its northern position. Our UK weather hub gives broader context, and the 10 Day Weather Forecast UK covers national patterns.
When is the sunniest month in Guernsey?
June and July are the sunniest, with around eight hours of sunshine daily. Sea breezes keep temperatures comfortable, rarely exceeding 25°C, making it ideal for outdoor plans.
Does Guernsey experience fog?
Yes, especially in spring and early summer. Sea fog can roll in suddenly, reducing visibility along the south coast and near St Peter Port. Check met office weather guernsey updates for alerts.
How reliable are 10-day forecasts for Guernsey?
The island’s maritime position makes longer-range forecasts less certain. For planning, use weather in Guernsey 10 days as a guide, but confirm closer to the time with bbc weather guernsey st sampsons or St Peter Port reports.