December weather forecast
Whitby, United Kingdom

December

Weather in December

The first month of the winter, December, is still a chilly month in Whitby, United Kingdom, with an average temperature varying between 4.7°C (40.5°F) and 7.1°C (44.8°F).

Temperature

A minimal variation is noted in Whitby's average high-temperature at the onset of December, reaching a still frosty 7.1°C (44.8°F) from November's 9.4°C (48.9°F). The temperature during December experiences a small drop from daytime peaks, recording an average of 4.7°C (40.5°F) at night.

Humidity

January, November and December, with an average relative humidity of 84%, are the most humid months in Whitby.

Rainfall

In Whitby, United Kingdom, in December, it is raining for 15.6 days, with typically 31mm (1.22") of accumulated precipitation. In Whitby, during the entire year, the rain falls for 188.4 days and collects up to 468mm (18.43") of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Whitby, in December, during 2.3 snowfall days, 9mm (0.35") of snow is typically accumulated. In Whitby, United Kingdom, during the entire year, snow falls for 12 days and aggregates up to 68mm (2.68") of snow.

Sea temperature

In Whitby, United Kingdom, the average seawater temperature in December is 8.9°C (48°F).
Note: Swimming in 8.9°C (48°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The month with the shortest days in Whitby is December, with an average of 7h and 24min of daylight.
On the first day of December, sunrise is at 8:01 am and sunset at 3:41 pm. On the last day of the month, sunrise is at 8:24 am and sunset at 3:47 pm GMT.

Sunshine

The average sunshine in December is 4.4h.

UV index

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 3 suggests this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Frequently asked questions

What are the temperatures in Whitby in December?
The average high-temperature and low-temperature during December are 7.1°C (44.8°F) and 4.7°C (40.5°F) respectively.
What is the most humid month in Whitby?
January, November and December, with an average relative humidity of 84%, are most humid months.
What is the average humidity in December in Whitby?
In Whitby, the average relative humidity in December is 84%.
How many days does it rain in December in Whitby?
In Whitby, United Kingdom, in December, it is raining for 15.6 days, with typically 31mm (1.22") of accumulated precipitation.
How many days does it snow in December in Whitby?
In Whitby, in December, snow falls for 2.3 days, with typically accumulated 9mm (0.35") of snow.
What is the sea water temperature in December in Whitby?
In December, the average sea temperature in Whitby is 8.9°C (48°F). Swimming in 8.9°C (48°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 month with the shortest days in Whitby?
December has the shortest days of the year, with an average of 7h and 24min of daylight.
How many hours of daylight does Whitby have in December?
The average day length in December in Whitby is 7h and 23min.
When are sunrise and sunset in December in Whitby?
In December, on the first day of the month, sunrise is at 8:01 am and sunset at 3:41 pm. On the last day of the month, in Whitby, sunrise is at 8:24 am and sunset at 3:47 pm GMT.
How long on average sun shines in December in Whitby?
In Whitby, the average sunshine duration in December is 4.4h.
How high is the UV index in December in Whitby?
In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Whitby, United Kingdom
  • Average high temperature in December: 7.1°C

The warmest months (with the highest average high temperature) are July and August (17.3°C).
The month with the lowest average high temperature is January (6.2°C).

  • Average low temperature in December: 4.7°C

The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).

Average pressure in December
Whitby, United Kingdom
  • Average pressure in December: 1010.5mbar

The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.4mbar).

Average wind speed in December
Whitby, United Kingdom
  • Average wind speed in December: 25.2km/h

The windiest month (with the highest average wind speed) is December (25.2km/h).
The calmest month (with the lowest average wind speed) is June (15.5km/h).

Average humidity in December
Whitby, United Kingdom
  • Average humidity in December: 84%

The months with the highest relative humidity are January, November and December (84%).
The months with the lowest relative humidity are April and May (80%).

Average rainfall in December
Whitby, United Kingdom
  • Average rainfall in December: 31mm

The wettest month (with the highest rainfall) is June (62mm).
The driest month (with the least rainfall) is April (21mm).

Average rainfall days in December
Whitby, United Kingdom
  • Average rainfall days in December: 15.6 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (12.9 days).

Average snowfall in December
Whitby, United Kingdom
  • Average snowfall in December: 9mm

The months with the highest snowfall are January and February (21mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Whitby, United Kingdom
  • Average snowfall days in December: 2.3 days

The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in December
Whitby, United Kingdom
  • Average sea temperature in December: 8.9°C

The best month for swimming (with the highest average sea temperature) is August (15.8°C).
The coldest month (with the lowest average sea temperature) is March (6.8°C).

Average daylight in December /
Average sunshine in December
Whitby, United Kingdom
  • Average daylight in December: 7h and 2min

The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in December
Whitby, United Kingdom
  • Average sunshine days in December: 11.7 days

The month with the most sunshine days is April (14.8 days).
The month with the least sunshine days is November (8.5 days).

Average UV index in December
Whitby, United Kingdom
  • Average UV index in December: 3

The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February and November (UV index 2).

Average cloud cover in December
Whitby, United Kingdom
  • Average cloud cover in December: 55

The months with the most cloud cover are February and November (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 48).

Average visibility in December
Whitby, United Kingdom
  • Average visibility in December: 10km

The months with the highest visibility are March, April, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, May and June (9km).

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