Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The average high-temperature in Sillamäe shows a slight dip in December, from November's 4.3°C (39.7°F) to a still icy 0.1°C (32.2°F). During the nights of December, Sillamäe records an average temperature of -2.5°C (27.5°F), a minor drop from daytime peaks.Humidity
In Sillamäe, the average relative humidity in December is 89%.Rainfall
In Sillamäe, Estonia, in December, it is raining for 9.1 days, with typically 42mm (1.65") of accumulated precipitation. Throughout the year, in Sillamäe, there are 151.8 rainfall days, and 510mm (20.08") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Sillamäe, in December, snow falls for 18.7 days, with typically accumulated 138mm (5.43") of snow. In Sillamäe, during the entire year, snow falls for 90.8 days and aggregates up to 773mm (30.43") of snow.Sea temperature
In December, the average sea temperature is 2.3°C (36.1°F).Note: During swimming activities, this is a serious life-threatening hazard. Rapid loss of control over breathing impairs cognitive abilities. A specialized swimsuit is essential to limit thermal wastage.
Daylight
The month with the shortest days is December, with an average of 6h and 12min of daylight.On the first day of the month, sunrise is at 08:39 and sunset at 15:16. On the last day of December, sunrise is at 09:05 and sunset at 15:18 EET.
Sunshine
The month with the least sunshine is December, with an average of 1.6h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 1 during December translates into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. 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. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Sillamäe?
What is the average humidity in December in Sillamäe?
How much does it rain in Sillamäe in December?
How many days does it snow in December in Sillamäe?
What is the sea temperature in December in Sillamäe?
What is the month with the shortest days in Sillamäe?
What is the average length of the day in December in Sillamäe?
What time are sunrise and sunset in December in Sillamäe?
What is the month with the least sunshine in Sillamäe?
How long on average sun shines in December in Sillamäe?
What is the month with the lowest UV index in Sillamäe?
What is the UV index intensity in December in Sillamäe?
Average temperature in December
Sillamäe, Estonia
- Average high temperature in December: 0.1°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.8°C).
- Average low temperature in December: -2.5°C
The month with the highest average low temperature is July (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (-6°C).
Average pressure in December
Sillamäe, Estonia
- Average pressure in December: 1010mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1010mbar).
Average wind speed in December
Sillamäe, Estonia
- Average wind speed in December: 20.8km/h
The windiest month (with the highest average wind speed) is December (20.8km/h).
The calmest month (with the lowest average wind speed) is May (13.4km/h).
Average humidity in December
Sillamäe, Estonia
- Average humidity in December: 89%
The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are May and June (73%).
Average rainfall in December
Sillamäe, Estonia
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is August (65mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in December
Sillamäe, Estonia
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Sillamäe, Estonia
- Average snowfall in December: 138mm
The month with the highest snowfall is January (164mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Sillamäe, Estonia
- Average snowfall days in December: 18.7 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Sillamäe, Estonia
- Average sea temperature in December: 2.3°C
The best month for swimming (with the highest average sea temperature) is July (19.9°C).
The coldest month (with the lowest average sea temperature) is February (-0.6°C).
Average daylight in December /
Average sunshine in December
Sillamäe, Estonia
- Average daylight in December: 6h and 1min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in December: 1h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).
Average sunshine days in December
Sillamäe, Estonia
- Average sunshine days in December: 4.6 days
The month with the most sunshine days is May (16 days).
The month with the least sunshine days is December (4.6 days).
Average UV index in December
Sillamäe, Estonia
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Sillamäe, Estonia
- Average cloud cover in December: 81
The month with the most cloud cover is December (Cloud cover 81).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Sillamäe, Estonia
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is February (7km).
Sillamäe, Estonia
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