Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
During the shift to September, Leersum records a mild decrease in average high-temperature, moving from a pleasant 22.3°C (72.1°F) in August to a comfortable 18.7°C (65.7°F). Leersum sees an average low-temperature of 10.7°C (51.3°F) during September.Humidity
In Leersum, Netherlands, the average relative humidity in September is 82%.Rainfall
In Leersum, in September, during 13.5 rainfall days, 28mm (1.1") of precipitation is typically accumulated. Throughout the year, in Leersum, there are 193.3 rainfall days, and 523mm (20.59") of precipitation is accumulated.Snowfall
In Leersum, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 39min.On the first day of September, sunrise is at 06:51 and sunset at 20:25. On the last day of the month, sunrise is at 07:38 and sunset at 19:17 CEST.
Sunshine
In September, the average sunshine in Leersum is 7.2h.UV index
In Leersum, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Take necessary precautions - Protection from skin and eye injury is mandatory. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Leersum in September?
What is the average humidity in September in Leersum?
How many days does it rain in September in Leersum?
When it does not snow in Leersum?
How many hours of daylight does Leersum have in September?
When are sunrise and sunset in September in Leersum?
How many hours of sunshine does Leersum have in September?
What is the UV index intensity in September in Leersum?
Average temperature in September
Leersum, Netherlands
- Average high temperature in September: 18.7°C
The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (4.6°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (1°C).
Average pressure in September
Leersum, Netherlands
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).
Average wind speed in September
Leersum, Netherlands
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is December (17.7km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in September
Leersum, Netherlands
- Average humidity in September: 82%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Leersum, Netherlands
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is June (53mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Leersum, Netherlands
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is September (13.5 days).
Average snowfall in September
Leersum, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Leersum, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.7 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
Leersum, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Leersum, Netherlands
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is December (7.9 days).
Average UV index in September
Leersum, 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
Leersum, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in September
Leersum, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and November (9km).
The months with the lowest visibility are September and December (8km).
