January weather forecast
Saint Peter Port, Guernsey

A calm sunny day in Saint Peter Port, Guernsey, with ships docked at the harbor
A calm sunny day in Saint Peter Port, Guernsey, with ships docked at the harbor

Weather in January

January, like December, is another chilly winter month in Saint Peter Port, Guernsey, with an average temperature ranging between min 7.8°C (46°F) and max 9.8°C (49.6°F).

Temperature

In January, the average high-temperature is relatively the same as in December - a chilly 9.8°C (49.6°F). The average low-temperature, in January, is 7.8°C (46°F).

Humidity

In January, the average relative humidity in Saint Peter Port is 78%.

Rainfall

In January, in Saint Peter Port, the rain falls for 22 days. Throughout January, 63mm (2.48") of precipitation is accumulated. Throughout the year, in Saint Peter Port, there are 196.3 rainfall days, and 557mm (21.93") of precipitation is accumulated.

Snowfall

The only month with snowfall in Saint Peter Port, Guernsey, is January. The month with the most snowfall is January, when snow falls for 0.3 days and typically aggregates up to 2mm (0.08") of snow.

Sea temperature

In January, the average sea temperature is 10°C (50°F).
Note: 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 January, the average length of the day in Saint Peter Port is 8h and 43min.
On the first day of the month, sunrise is at 08:06 and sunset at 16:21. On the last day of January, sunrise is at 07:43 and sunset at 17:04 GMT.

Sunshine

The months with the least sunshine in Saint Peter Port are January, November and December, with an average of 3.9h of sunshine.

UV index

In Saint Peter Port, the average daily maximum UV index in January is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 in January transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in January in Saint Peter Port?

The average high-temperature, in January, is 9.8°C (49.6°F), while the average low-temperature is 7.8°C (46°F).

What is the average humidity in January in Saint Peter Port?

In Saint Peter Port, Guernsey, the average relative humidity in January is 78%.

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

In Saint Peter Port, in January, during 22 rainfall days, 63mm (2.48") of precipitation is typically accumulated.

When does it snow the most in Saint Peter Port?

January is the month with the most snowfall in Saint Peter Port, Guernsey. Snow falls for 0.3 days and accumulates 2mm (0.08") of snow.

When does it start to snow in Saint Peter Port?

January is the first month it typically snows in Saint Peter Port. Throughout January, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow.

What is the sea water temperature in January in Saint Peter Port?

In Saint Peter Port, Guernsey, in January, the average water 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.

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

In January, the average day length in Saint Peter Port, Guernsey, is 8h and 43min.

What time are sunrise and sunset in January in Saint Peter Port?

On the first day of January, sunrise is at 08:06 and sunset at 16:21. On the last day of the month, sunrise is at 07:43 and sunset at 17:04 GMT.

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

January, November and December, with an average of 3.9h of sunshine, are months with the least sunshine in Saint Peter Port.

How long on average sun shines in January in Saint Peter Port?

The average sunshine duration in January in Saint Peter Port, Guernsey, is 3.9h.

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

In January, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in January
Saint Peter Port, Guernsey

Average temperature in January - Saint Peter Port, Guernsey
  • Average high temperature in January: 9.8°C

The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).

  • Average low temperature in January: 7.8°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7°C).

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Average pressure in January
Saint Peter Port, Guernsey

Average pressure in January - Saint Peter Port, Guernsey
  • Average pressure in January: 1016.1mbar

The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).

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Average wind speed in January
Saint Peter Port, Guernsey

Average wind speed in January - Saint Peter Port, Guernsey
  • Average wind speed in January: 34.1km/h

The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).

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Average humidity in January
Saint Peter Port, Guernsey

Average humidity in January - Saint Peter Port, Guernsey
  • Average humidity in January: 78%

The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).

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Average rainfall in January
Saint Peter Port, Guernsey

Average rainfall in January - Saint Peter Port, Guernsey
  • Average rainfall in January: 63mm

The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (26mm).

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Average rainfall days in January
Saint Peter Port, Guernsey

Average rainfall days in January - Saint Peter Port, Guernsey
  • Average rainfall days in January: 22 days

The month with the highest number of rainy days is November (22.8 days).
The month with the least rainy days is June (11.5 days).

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Average snowfall in January
Saint Peter Port, Guernsey

Average snowfall in January - Saint Peter Port, Guernsey
  • Average snowfall in January: 2mm

The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in January
Saint Peter Port, Guernsey

Average snowfall days in January - Saint Peter Port, Guernsey
  • Average snowfall days in January: 0.3 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average sea temperature in January
Saint Peter Port, Guernsey

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

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

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Average daylight in January /
Average sunshine in January
Saint Peter Port, Guernsey

Average daylight in January / Average sunshine in January - Saint Peter Port, Guernsey
  • Average daylight in January: 8h and 43min

The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 15min).

  • Average sunshine in January: 3h and 54min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 54min).

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Average sunshine days in January
Saint Peter Port, Guernsey

Average sunshine days in January - Saint Peter Port, Guernsey
  • Average sunshine days in January: 5.5 days

The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4 days).

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Average UV index in January
Saint Peter Port, Guernsey

Average UV index in January - Saint Peter Port, Guernsey
  • Average UV index in January: 3

The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).

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Average cloud cover in January
Saint Peter Port, Guernsey

Average cloud cover in January - Saint Peter Port, Guernsey
  • Average cloud cover in January: 62

The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 37).

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Average visibility in January
Saint Peter Port, Guernsey

Average visibility in January - Saint Peter Port, Guernsey
  • Average visibility in January: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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