Normal weather for Sint-Niklaas in September
It's pleasantly warm in September in Sint-Niklaas with an average temperature of 21°C. Temperatures this month range from a low of 18°C to a high of 23°C. At night, you can expect temperatures between 10°C and 15°C.
In September, there is an average of 56 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the South.
Want nice weather? Then September is a great time to be in Sint-Niklaas. You’ll have pleasant temperatures and not too much rain this month.
Sint-Niklaas in September |
London | ||
|---|---|---|---|
 Average Temperature |
21°C | 20°C | |
 High Temp |
23°C | 22°C | |
| Low Temp |
18°C | 17°C | |
 Total Precipitation |
56 mm | 44 mm | |
| Rainy Days |
8 days | 8 days | |
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Discover cheap trips to Sint-Niklaas 
Start of September
The month of September starts in Sint-Niklaas with warm temperatures, averaging around 22°C during the day and nights close to 14°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature stays the same at 22°C, with nights close to 13°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in Sint-Niklaas will be around 19°C, with nights close to 11°C. A shower might show up, but overall the weather will be dry and sunny.
Temperature records
With 34°C, Sint-Niklaas hit the highest temperature in the last 10 years in September 2020. The lowest daytime temperature in this month was 12°C in 2018. The extreme night temperatures ranged from a low of 1°C to a high of 19°C.
Check out the climate of Sint-Niklaas for all months and discover the best travel time
Curious about the climate in other parts of Belgium? Check out the weather and climate in places like Bruges, Antwerp, or have a look at other destinations in Belgium.
August
Plan your next holiday
Don’t miss the best holiday deals for Sint-Niklaas and see what our partners have for you.
Daily Temperature in September in Sint-Niklaas
This chart shows the average daily temperatures, both day and night, for each day in September in Sint-Niklaas, 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 September in Sint-Niklaas
The chart below shows the average daily precipitation in September for Sint-Niklaas, 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 September, you can expect around 8 days of rain in Sint-Niklaas.
Daily UV Index in September in Sint-Niklaas
This chart shows the average daily UV index in September in Sint-Niklaas, 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 September in Sint-Niklaas Over the Years
This chart shows the average temperature in September in Sint-Niklaas, measured in degrees Celsius, over the past years.
Total Precipitation in September in Sint-Niklaas Over the Years
This chart shows the average precipitation in September in Sint-Niklaas, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Sint-Niklaas
Click on a specific day in September for detailed info on the typical weather on that day in Sint-Niklaas. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Sint-Niklaas
Have you been to Sint-Niklaas in September?
Share your weather experience in September in Sint-Niklaas.
Average Weather in Sint-Niklaas by Month
Click on a month below to see detailed weather info for Sint-Niklaas. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Sint-Niklaas for all months at once
