September weather forecastLeerdam, Netherlands
September
Weather in September
September, the first month of the autumn in Leerdam, is still a refreshing month, with an average temperature ranging between min 11.3°C (52.3°F) and max 18.9°C (66°F).Temperature
The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a pleasant 22.3°C (72.1°F) in August to a refreshing 18.9°C (66°F). The month of September records an average low-temperature of 11.3°C (52.3°F).Humidity
The average relative humidity in September in Leerdam is 81%.Rainfall
In Leerdam, Netherlands, in September, it is raining for 9.8 days, with typically 16mm (0.63") of accumulated precipitation. In Leerdam, during the entire year, the rain falls for 133.9 days and collects up to 229mm (9.02") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Leerdam, the average length of the day in September is 12h and 39min.On the first day of September, sunrise is at 06:52 and sunset at 20:26. On the last day of the month, sunrise is at 07:39 and sunset at 19:19 CEST.
Sunshine
In Leerdam, the average sunshine in September is 7.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 4 in September transforms into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Leerdam, Netherlands
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is July (22.5°C).
The month with the lowest average high temperature is January (5.2°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (14°C).
The coldest months (with the lowest average low temperature) are January and February (1.4°C).
Average pressure in September
Leerdam, Netherlands
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).
Average wind speed in September
Leerdam, Netherlands
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is December (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in September
Leerdam, Netherlands
- Average humidity in September: 81%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Leerdam, Netherlands
- Average rainfall in September: 16mm
The wettest months (with the highest rainfall) are June and July (25mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Leerdam, Netherlands
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is October (9.2 days).
Average snowfall in September
Leerdam, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Leerdam, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3 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
Leerdam, Netherlands
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Leerdam, Netherlands
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Leerdam, 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
Leerdam, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 66).
The months with the least cloud cover are April and August (Cloud cover 43).
Average visibility in September
Leerdam, 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).
