Saint Peter Port
Guernsey
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Saint Peter Port, Guernsey

A calm sunny day in Saint Peter Port, Guernsey, with ships docked at the harbor, and a clear skyline in the horizon
A calm sunny day in Saint Peter Port, Guernsey, with ships docked at the harbor, and a clear skyline in the horizon
January, the same as December, in Saint Peter Port, Guernsey, is a frosty winter month, with average temperature ranging between min 5°C (41°F) and max 9°C (48.2°F). In January, the average high-temperature is relatively the same as in December - a chilly 9°C (48.2°F). Weather in January »
February, the last month of the winter, in Saint Peter Port, is also a frosty month, with average temperature varying between 4°C (39.2°F) and 8°C (46.4°F). February is the coldest month, with an average high-temperature of 8°C (46.4°F) and an average low-temperature of 4°C (39.2°F). Weather in February »

The first month of the spring, March, is a fresh month in Saint Peter Port, Guernsey, with average temperature fluctuating between 5°C (41°F) and 10°C (50°F). In March, the average high-temperature is relatively the same as in February - a cool 10°C (50°F). Weather in March »

April, the same as March, is another fresh spring month in Saint Peter Port, Guernsey, with average temperature fluctuating between 12°C (53.6°F) and 6°C (42.8°F). In Saint Peter Port, the average high-temperature is practically the same as in March - a still cool 12°C (53.6°F). Weather in April »

The last month of the spring, May, is a mild month in Saint Peter Port, Guernsey, with average temperature varying between 15°C (59°F) and 9°C (48.2°F). In May, the average high-temperature marginally rises, from a cool 12°C (53.6°F) in April, to a moderate 15°C (59°F). Weather in May »

The first month of the summer, June, is an enjoyable month in Saint Peter Port, Guernsey, with temperature in the range of an average low of 11°C (51.8°F) and an average high of 17°C (62.6°F). In Saint Peter Port, the average high-temperature in June is almost the same as in May - an enjoyable 17°C (62.6°F). Weather in June »

July, like June, in Saint Peter Port, Guernsey, is another enjoyable summer month, with temperature in the range of an average low of 13°C (55.4°F) and an average high of 19°C (66.2°F). In Saint Peter Port, Guernsey, the average high-temperature is relatively the same as in June - a still enjoyable 19°C (66.2°F). Weather in July »

The last month of the summer, August, is a pleasant month in Saint Peter Port, Guernsey, with average temperature ranging between min 14°C (57.2°F) and max 20°C (68°F). With an average high-temperature of 20°C (68°F) and an average low-temperature of 14°C (57.2°F), August is the warmest month. Weather in August »

September, the first month of the autumn, in Saint Peter Port, is also an enjoyable month, with average temperature varying between 13°C (55.4°F) and 18°C (64.4°F). In September, the average high-temperature is almost the same as in August - a comfortable 18°C (64.4°F). Weather in September »

October, like September, is another mild autumn month in Saint Peter Port, Guernsey, with average temperature ranging between max 15°C (59°F) and min 11°C (51.8°F). In Saint Peter Port, the average high-temperature marginally drops, from an enjoyable 18°C (64.4°F) in September, to a mild 15°C (59°F). Weather in October »

November, the last month of the autumn, in Saint Peter Port, is another cool month, with average temperature varying between 7°C (44.6°F) and 12°C (53.6°F). In Saint Peter Port, the average high-temperature marginally drops, from a mild 15°C (59°F) in October, to a fresh 12°C (53.6°F). Weather in November »

The first month of the winter, December, is still a cool month in Saint Peter Port, Guernsey, with average temperature varying between 6°C (42.8°F) and 10°C (50°F). In December, the average high-temperature is essentially the same as in November - a still fresh 10°C (50°F). Weather in December »

How many days does it rain in Saint Peter Port?

In Saint Peter Port, during the entire year, the rain falls for 175 days and collects up to 799mm (31.5") of precipitation.

What is the month with the least sunshine in Saint Peter Port?

Months with the least sunshine in Saint Peter Port, Guernsey, are January, November and December, with an average of 2h of sunshine.

What are the months with the lowest UV index in Saint Peter Port?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Saint Peter Port.

What is the coldest month in Saint Peter Port?

The coldest month in Saint Peter Port is February, with an average high-temperature of 8°C (46.4°F) and an average low-temperature of 4°C (39.2°F).

When is the sea coldest in Saint Peter Port?

February and March, with an average sea temperature of 9°C (48.2°F), are months with the coldest seawater.

What are the months with the most sunshine in Saint Peter Port?

Months with the most sunshine are May through July, with an average of 8h of sunshine.

When are the longest days in Saint Peter Port?

June has the longest days of the year in Saint Peter Port, Guernsey, with an average of 16.2h of daylight.

What are the months with the highest UV index in Saint Peter Port?

Months with the highest UV index are June and July, with an average maximum UV index of 7.

What is the driest month in Saint Peter Port?

The month with the least rainfall is July when the rain falls for 10 days and typically collects 37mm (1.5") of precipitation.

What is the warmest month in Saint Peter Port?

The warmest month is August, with an average high-temperature of 20°C (68°F) and an average low-temperature of 14°C (57.2°F).

When is the sea warmest in Saint Peter Port?

With an average sea temperature of 17°C (62.6°F), August is the month with the warmest seawater.

What is the rainiest month in Saint Peter Port?

December is the month with the most rainfall in Saint Peter Port, Guernsey. Rain falls for 19 days and accumulates 100mm (3.9") of precipitation.

What is the month with the shortest days in Saint Peter Port?

With an average of 8.3h of daylight, December has the shortest days of the year in Saint Peter Port.
Average rainfall - Saint Peter Port, Guernsey
Average rainfall days - Saint Peter Port, Guernsey
Average sea temperature - Saint Peter Port, Guernsey
Average daylight / Average sunshine - Saint Peter Port, Guernsey

The month with the longest days is June (Average daylight: 16.2h).
The month with shortest days is December (Average daylight: 8.3h).

Months with most sunshine are May, June and July (Average sunshine: 8h).
Months with least sunshine are January, November and December (Average sunshine: 2).

Average UV index - Saint Peter Port, Guernsey