September weather forecastHeerlerbaan, Netherlands
September
Weather in September
September, the first month of the autumn in Heerlerbaan, is still a refreshing month, with an average temperature ranging between min 10.5°C (50.9°F) and max 18.7°C (65.7°F).Temperature
As August transitions into September, Heerlerbaan sees a gentle drop in the average high-temperature, transitioning from an agreeable 22.6°C (72.7°F) to a comfortable 18.7°C (65.7°F). The nights of September in Heerlerbaan anticipate an average low-temperature of 10.5°C (50.9°F).Humidity
In September, the average relative humidity is 80%.Rainfall
In September, the rain falls for 12.2 days. Throughout September, 28mm (1.1") of precipitation is accumulated. Throughout the year, there are 182.5 rainfall days, and 482mm (18.98") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:50 and sunset at 20:21. On the last day of September, sunrise is at 07:35 and sunset at 19:15 CEST.
Sunshine
The average sunshine in September in Heerlerbaan is 7.9h.UV index
The average daily maximum UV index in September in Heerlerbaan is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Heerlerbaan, Netherlands
- Average high temperature in September: 18.7°C
The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (0.4°C).
Average pressure in September
Heerlerbaan, 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 (1013.1mbar).
Average wind speed in September
Heerlerbaan, Netherlands
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in September
Heerlerbaan, Netherlands
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Heerlerbaan, Netherlands
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Heerlerbaan, Netherlands
- Average rainfall days in September: 12.2 days
The months with the highest number of rainy days are May and July (18 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in September
Heerlerbaan, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Heerlerbaan, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.9 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
Heerlerbaan, 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: 7h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Heerlerbaan, Netherlands
- Average sunshine days in September: 15.5 days
The months with the most sunshine days are September and October (15.5 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Heerlerbaan, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Heerlerbaan, Netherlands
- Average cloud cover in September: 42
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Heerlerbaan, Netherlands
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
