Weather in Guernsey in září
Country-wide climate normals across 11 cities in Guernsey.
How Hot Is Guernsey in září?
Guernsey's small geographic footprint means September is uniformly mild — typical 17°C highs nationwide.
Sunshine in Guernsey in září
Variable weather dominates Guernsey in September: 3.4h of direct sun on a typical day in Saint Peter Port, with daylight from 6:45 am to 7:20 pm. Expect both bright and cloudy days across the month, and slight regional differences between coastal and inland zones.
Does It Rain In Guernsey In září?
Guernsey sees moderate rainfall in September — Saint Peter Port averages 71mm across 11 days, with notable regional variation. Coastal cities often see more rain than the inland average, while drier regions see less. The country's September weather mixes sunny stretches with regular shower spells.
Is Guernsey Humid In září?
Heavy oppressive humidity covers Guernsey in September: 79% on average in Saint Peter Port, and similar saturating conditions exist nationwide. The air feels thick and heavy from sunrise to sundown, with little overnight respite. Coastal and tropical regions feel especially stifling.
Wind In Guernsey In září
Persistent breeze shapes Guernsey's September: 33 kph in Saint Peter Port, with consistent wind across the country. The conditions are ideal for sailing and other wind sports, but can be disruptive for fine outdoor work.
Cloud Cover In Guernsey In září
Guernsey sees mostly cloudy weather through September: Saint Peter Port averages 63% cloud cover, and the pattern repeats across the country. Bright sun is uncommon; expect a grey, soft-lit feel to most days.