Guernsey Weather Today

The Climate and Weather of the Bailiwick of Guernsey

The Bailiwick of Guernsey is a group of islands located in the English Channel, off the coast of Normandy, France. The bailiwick includes the main island of Guernsey, as well as several smaller islands such as Alderney, Sark, and Herm. The climate of the Bailiwick of Guernsey is influenced by its maritime location and generally experiences mild temperatures throughout the year.

Temperature

The temperature in the Bailiwick of Guernsey is relatively mild, with cool summers and mild winters. The average temperature in the summer months, from June to August, ranges from 16°C (61°F) to 20°C (68°F). The warmest month is typically July, with average high temperatures of around 20°C (68°F).

During the winter months, from December to February, the average temperature ranges from 7°C (45°F) to 11°C (52°F). January is the coldest month, with average low temperatures of around 6°C (43°F). Overall, the temperature in the Bailiwick of Guernsey remains moderate throughout the year.

Precipitation

The Bailiwick of Guernsey receives a moderate amount of precipitation throughout the year, with the wettest months typically being from October to December. The annual average rainfall is around 900mm (35 inches), which is relatively evenly distributed throughout the year.

Due to its maritime location, the islands often experience showers and occasional drizzle. However, prolonged periods of heavy rainfall are relatively rare. The weather can change quickly, and it is not uncommon to experience both sunshine and rain in the same day.

Sunshine Hours

The Bailiwick of Guernsey enjoys a reasonable amount of sunshine throughout the year. The longest days occur during the summer months, when the islands experience up to 16 hours of daylight. In contrast, the shortest days occur during the winter months, with around 8 hours of daylight.

On average, the islands receive around 1,600 hours of sunshine per year. May and June tend to be the sunniest months, with up to 8 hours of sunshine per day. However, even during the winter months, there are still sunny days to be enjoyed.

Wind

As an island group located in the English Channel, the Bailiwick of Guernsey is exposed to the influence of prevailing winds. The islands can experience strong winds at times, particularly during the winter months when storms from the Atlantic Ocean can affect the region.

The prevailing winds in the area are from the southwest. The islands' topography can also influence wind patterns, with gusts and variations in wind speed experienced in different parts of the islands.

Fog

Fog can occasionally be a factor in the Bailiwick of Guernsey, particularly during the spring and autumn months. The presence of fog is often associated with calm, stable weather conditions and can result in reduced visibility. However, foggy conditions are generally not persistent and tend to clear relatively quickly.

Climate Summary

The climate of the Bailiwick of Guernsey can be summarized as a mild maritime climate, with relatively cool summers and mild winters. The islands experience moderate levels of precipitation throughout the year, but prolonged heavy rainfall is rare. The islands enjoy a reasonable amount of sunshine, with the longest days occurring during the summer months. Strong winds can occur, particularly during winter storms, and occasional fog may affect visibility.

Overall, the climate of the Bailiwick of Guernsey is pleasant and suitable for a range of outdoor activities throughout the year.