September weather forecastMaastricht, Netherlands
September
Weather in September
As September dawns, the city of Maastricht begins to feel the cool whispers of the impending autumn. The weather begins to cool down, with temperatures dropping, yet the city remains bathed in considerable daylight. Rarely, September experiences zero snowfall, making it an ideal time to enjoy the early onset of fall without any hindrance. The shift from summer to autumn paints the city with a palette of oranges, reds and browns adding a magical aura to the cityscape. Wind speeds see a slight increase, setting the pace for the changing season.Temperature
The shift from August to September in Maastricht coincides with a small decrease in the average high-temperature, down to a refreshing 18.9°C (66°F) from an agreeable 22.9°C (73.2°F). During the month of September, Maastricht experiences a steady low-temperature average of 10.6°C (51.1°F).Humidity
The average relative humidity in September in Maastricht, Netherlands, is 79%.Rainfall
In Maastricht, Netherlands, during September, the rain falls for 11.3 days and regularly aggregates up to 23mm (0.91") of precipitation. Throughout the year, in Maastricht, there are 173 rainfall days, and 456mm (17.95") of precipitation is accumulated.Snowfall
In Maastricht, Netherlands, snow does not fall in April through October.Daylight
In Maastricht, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:51 and sunset at 20:22. On the last day of September, sunrise is at 07:36 and sunset at 19:17 CEST.
Sunshine
In Maastricht, the average sunshine in September is 8h.UV index
In Maastricht, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Maastricht, Netherlands
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in September
Maastricht, Netherlands
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in September
Maastricht, Netherlands
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in September
Maastricht, Netherlands
- Average humidity in September: 79%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Maastricht, Netherlands
- Average rainfall in September: 23mm
The wettest months (with the highest rainfall) are June and December (49mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Maastricht, Netherlands
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is September (11.3 days).
Average snowfall in September
Maastricht, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (46mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Maastricht, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Maastricht, Netherlands
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Maastricht, Netherlands
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in September
Maastricht, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Maastricht, Netherlands
- Average cloud cover in September: 41
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Maastricht, Netherlands
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
