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Local Weather

Sint-Niklaas Climate History

Past weather including monthly averages for Sint-Niklaas

Belgium

Country Overview For Belgium

The climate in Belgium is typically temperate; mild winters, cool summers; rainy, humid, cloudy. The terrain: flat coastal plains in northwest, central rolling hills, rugged mountains of Ardennes Forest in southeast. For Brussels in January the daily average maximum temperatures is 6°C with the average minimum 2°C, while in June the average maximum is 21°C with a minimum of 12°C. The wettest month for Brussels is August with an average of 94.0mm of precipitation falling while the driest month is May with 54.0mm falling.


 

HISTORICAL MONTHLY AVERAGES FOR DECEMBER

The information presented below gives detailed historical monthly average weather conditions along with exceptional weather occurrences. To maintain relevance to current weather trends the displayed information has been calculated using data collected over the past two decades. The climate profile is taken from closest available data source to Sint-Niklaas.

Temperature

Throughout the month of December daytime temperatures will generally reach highs of around 6°C that's about 44°F. At night the average minimum temperature drops down to around 2°C, that's 35°F.

In recent times the highest recorded temperature in December has been 16°C that's 60°F, with the lowest recorded temperature -11°C, about 12°F.

Relative Humidity

The average daily relative humidity for December is around 89%.

Heat Index

The Heat Index is a measure of how hot it feels when relative humidity is added to actual air temperature. From this a comfort level is calculated providing categories on how heat conditions might adversely affect someone.

Comfort Levels: Given average maximum temperatures and humidity levels generally you should not anticipate any discomfort from heat (see heat index for more information).

Precipitation

The average monthly amount of precipitation has been recorded at around 80 mm, that's 3 inches.

Estimated Hours of Sunshine per Day

We calculate sunshine hours per day using our past forecast data. For December expect the sun to shine for an average of 3 hours per day. This represents the average number of hours in the daytime that the sun is visible and not obscured by cloud e.g. the average number of hours the sun is actually out and shining. Note we calculate hours of sunshine per day using our past forecast data, not observation data, thus it is an estimate and not actual.

Wind

The average daily wind speed in December has been around 17 km/h, that’s the equivalent to about 10 mph, or 9 knots. In recent years the maximum sustained wind speed has reached 57 km/h, that’s the equivalent of around 36 mph, or 31 knots.

Fog

On average the month of December is affected by foggy conditions on less than 1 day.

SWIMMING AND WATER TEMPERATURE

The temperature of water an individual will feel comfortable in is very much personal preference. What feels unbearably cold to one person for a swim might be fine for another. We have created our own Swimming Water Temperature Index offering a guide to water temperature and comfort levels for swimming;

In December, for the nearest coastal location, the temperature of the sea averages around 9°C, that's 48° Fahrenheit. Our index indicates for swimming this is considered cold and even the most hardy among us would find any more than a few minutes in the water uncomfortable.

 

YEARLY TRENDS: WEATHER AVERAGES & EXTREMES

The following charts show yearly weather trends with information on monthly weather averages and extremes.

Temperature

The chart below plots the average high and low temperature for each month of the year. It also shows the maximum and minimum recorded temperatures.

Precipitation Amount

The chart below plots the average monthly precipitation amount.

Wind Speed

The chart below plots the average daily wind speed you can expect for any month. It also shows the maximum recorded sustained wind speed for each month.