Temperatures in December
It's cool in December in Eureka with an average temperature of 13°C. Temperatures this month range from a low of 11°C to a high of 15°C. At night, you can expect temperatures between 4°C and 9°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Eureka in December. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of December
The month of December starts in Eureka with cool temperatures, averaging around 14°C during the day and nights close to 7°C. Plenty of days with a chance of precipitation.
Mid-December
By mid-December, the average daytime temperature drops to around 13°C, with nights close to 6°C. The chance of precipitation is high during this period.
End of December
By the end of December, the average daytime temperature in Eureka will be around 13°C, with nights close to 5°C. There’s a significant chance of many days with precipitation.
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Water temperature
The water temperature at Eureka is 13°C this month. This is too cold to swim without protective gear.
Precipitation in December
In December, there is an average of 284 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The average precipitation chance is 49% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in December for Eureka. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Eureka in December |
London | ||
|---|---|---|---|
 Average Temperature |
13°C | 9°C | |
 High Temp |
15°C | 11°C | |
| Low Temp |
11°C | 8°C | |
 Total Precipitation |
284 mm | 67 mm | |
| Rainy Days |
15 days | 10 days | |
November
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is December a good time to visit Eureka?
After some sun? Then December isn’t the best time to be in Eureka. There’s too much chance of rain this month.
Temperature records for Eureka in December
With 20°C, Eureka hit the highest temperature in the last 10 years in December 2019. The lowest daytime temperature in this month was 6°C in 2021. The extreme night temperatures ranged from a low of -3°C to a high of 15°C.
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Daily Temperature in December in Eureka
This chart shows the average daily temperatures, both day and night, for each day in December in Eureka, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in December in Eureka
The chart below shows the average daily precipitation in December for Eureka, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for December, you can expect around 15 days of rain in Eureka.
Daily UV Index in December in Eureka
This chart shows the average daily UV index in December in Eureka, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Eureka Over the Years
This chart shows the average temperature in December in Eureka, measured in degrees Celsius, over the past years.
Total Precipitation in December in Eureka Over the Years
This chart shows the average precipitation in December in Eureka, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in December for Eureka
Click on a specific day in December for detailed info on the typical weather on that day in Eureka. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Eureka
Have you been to Eureka in December?
Share your weather experience in December in Eureka.
Average Weather in Eureka by Month
Click on a month below to see detailed weather info for Eureka. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
