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 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 start of December signals a gentle decrease in the average high-temperature, transitioning from a cold 1.5°C (34.7°F) in November to a subzero cold -2.9°C (26.8°F). Maintaining close parity with daytime warmth, the average nocturnal temperature during December stays at a still freezing cold -7°C (19.4°F).Humidity
In December, the average relative humidity is 94%.Rainfall
In Istra, Russia, in December, it is raining for 6.2 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, there are 141.8 rainfall days, and 476mm (18.74") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Istra, Russia. In Istra, in December, during 20.1 snowfall days, 162mm (6.38") of snow is typically accumulated. In Istra, Russia, during the entire year, snow falls for 104.6 days and aggregates up to 851mm (33.5") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 6min of daylight.On the first day of December in Istra, sunrise is at 08:39 and sunset at 16:03. On the last day of the month, sunrise is at 09:03 and sunset at 16:08 MSK.
Sunshine
December has the least sunshine of the year in Istra, Russia, with an average of 1.2h of sunshine.UV index
The months with the lowest UV index in Istra are January through March, October through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 1 translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Istra?
What is the average humidity in December in Istra?
How many days does it rain in December in Istra?
How many days does it snow in December in Istra?
What is the month with the shortest days in Istra?
What is the average length of the day in December in Istra?
What time are sunrise and sunset in December in Istra?
What is the month with the least sunshine in Istra?
How long on average sun shines in December in Istra?
What is the month with the lowest UV index in Istra?
What is the UV index reading in December in Istra?
Average temperature in December
Istra, Russia
- Average high temperature in December: -2.9°C
The warmest month (with the highest average high temperature) is July (23.8°C).
The month with the lowest average high temperature is January (-6.2°C).
- Average low temperature in December: -7°C
The month with the highest average low temperature is July (13.6°C).
The coldest month (with the lowest average low temperature) is January (-11°C).
Average pressure in December
Istra, Russia
- Average pressure in December: 1015.8mbar
The month with the highest atmospheric pressure is November (1018.8mbar).
The month with the lowest atmospheric pressure is July (1011.9mbar).
Average wind speed in December
Istra, Russia
- Average wind speed in December: 13.6km/h
The windiest month (with the highest average wind speed) is December (13.6km/h).
The calmest month (with the lowest average wind speed) is July (10.3km/h).
Average humidity in December
Istra, Russia
- Average humidity in December: 94%
The months with the highest relative humidity are January and February (95%).
The months with the lowest relative humidity are May and June (73%).
Average rainfall in December
Istra, Russia
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is July (68mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in December
Istra, Russia
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in December
Istra, Russia
- Average snowfall in December: 162mm
The month with the highest snowfall is January (177mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Istra, Russia
- Average snowfall days in December: 20.1 days
The month with the highest number of snowfall days is January (20.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Istra, Russia
- Average daylight in December: 7h and 1min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in December: 1h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average sunshine days in December
Istra, Russia
- Average sunshine days in December: 8.4 days
The month with the most sunshine days is August (12.9 days).
The month with the least sunshine days is March (8.1 days).
Average UV index in December
Istra, Russia
- 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, October, November and December (UV index 1).
Average cloud cover in December
Istra, Russia
- Average cloud cover in December: 86
The month with the most cloud cover is January (Cloud cover 87).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Istra, Russia
- Average visibility in December: 6km
The months with the highest visibility are May, June, July and August (9km).
The month with the lowest visibility is January (5km).
Istra, Russia
Weather forecast for your location
2. Allow the app to use your location
