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

April 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
April, like March, in Saint Peter Port, Guernsey, is another fresh spring month, with average temperature varying between 6°C (42.8°F) and 12°C (53.6°F).

Temperature

In April, the average high-temperature is relatively the same as in March - a still fresh 12°C (53.6°F). In Saint Peter Port, in April, the average low-temperature is 6°C (42.8°F).

Rainfall

In Saint Peter Port, during April, the rain falls for 13 days and regularly aggregates up to 49mm (1.9") of precipitation. In Saint Peter Port, during the entire year, the rain falls for 175 days and collects up to 799mm (31.5") of precipitation.

Sea temperature

In April, the average sea temperature is 10°C (50°F). Swimming in 10°C (50°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In April, the average length of the day is 13.8h.

Sunshine

The average sunshine in Saint Peter Port is 6h.

UV index

In Saint Peter Port, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for average individuals.
The average daily UV index of 4 in April transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in April in Saint Peter Port?

In Saint Peter Port, in April, the average high-temperature is 12°C (53.6°F), and the average low-temperature is 6°C (42.8°F).

How much does it rain in Saint Peter Port in April?

In Saint Peter Port, during April, the rain falls for 13 days and regularly aggregates up to 49mm (1.9") of precipitation.

How cold is the water in April in Saint Peter Port?

In Saint Peter Port, Guernsey, the average seawater temperature in April is 10°C (50°F). Swimming in 10°C (50°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in April in Saint Peter Port?

The average length of the day in April in Saint Peter Port, Guernsey, is 13.8h.

How many hours of sunshine does Saint Peter Port have in April?

The average sunshine in April in Saint Peter Port is 6h.

What is the UV index intensity in April in Saint Peter Port?

In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.
Average temperature in April - Saint Peter Port, Guernsey
  • Average high temperature in April: 12°C

The warmest month (with the highest average high temperature) is August (20°C).
The month with the lowest average high temperature is February (8°C).

  • Average low temperature in April: 6°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (4°C).

Average rainfall in April - Saint Peter Port, Guernsey
  • Average rainfall in April: 49mm

The wettest month (with the highest rainfall) is December (100mm).
The driest month (with the lowest rainfall) is July (37mm).

Average rainfall days in April - Saint Peter Port, Guernsey
  • Average rainfall days in April: 13 days

The month with the highest number of rainy days is January (20 days).
The month with the lowest number of rainy days is July (10 days).

Average sea temperature in April - Saint Peter Port, Guernsey
  • Average sea temperature in April: 10°C

The best month for swimming (with the highest average sea temperature) is August (17°C).
Coldest months (with the lowest average sea temperature) are February and March (9°C).

Average daylight in April / Average sunshine in April - Saint Peter Port, Guernsey
  • Average daylight in April: 13.8h

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

  • Average sunshine in April: 6h

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 in April - Saint Peter Port, Guernsey
  • Average UV index in April: 4

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, November and December (UV index 1).