September weather forecastHarmelen, Netherlands
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Harmelen, Netherlands, with an average temperature ranging between min 11.7°C (53.1°F) and max 18.8°C (65.8°F).Temperature
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a pleasant 22.2°C (72°F) to a comfortable 18.8°C (65.8°F). During the nights in September, an average low-temperature of 11.7°C (53.1°F) is observed in Harmelen.Humidity
In September, the average relative humidity is 81%.Rainfall
In Harmelen, Netherlands, during September, the rain falls for 12.2 days and regularly aggregates up to 20mm (0.79") of precipitation. Throughout the year, in Harmelen, there are 157.6 rainfall days, and 301mm (11.85") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Harmelen.Daylight
The average length of the day in September in Harmelen is 12h and 39min.On the first day of September in Harmelen, sunrise is at 06:52 and sunset at 20:27. On the last day of the month, sunrise is at 07:40 and sunset at 19:19 CEST.
Sunshine
The average sunshine in September in Harmelen is 7.2h.UV index
In Harmelen, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Take necessary precautions - Suggestions to elude sunburn are provided. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harmelen, Netherlands
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (5.2°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (1.4°C).
Average pressure in September
Harmelen, 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 (1011.5mbar).
Average wind speed in September
Harmelen, Netherlands
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (17.9km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in September
Harmelen, 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
Harmelen, Netherlands
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Harmelen, Netherlands
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is October (10.4 days).
Average snowfall in September
Harmelen, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Harmelen, Netherlands
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (2.2 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
Harmelen, Netherlands
- Average daylight in September: 12h and 42min
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 12min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Harmelen, Netherlands
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in September
Harmelen, 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
Harmelen, Netherlands
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Harmelen, 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).
