September weather forecastHilversum, Netherlands
September
Weather in September
September introduces a mild weather change in Hilversum with temperatures reducing from August's heat. Rainfall experiences a slight increase to 22mm (0.87"), distributed over 13 days of the month, indicating the beginning of autumn. As October's chill creeps in, temperatures drop even further. September is known for its pleasant weather, ideal for exploring the city's parks or participating in cultural festivals. Light layers and sturdy footwear are advised for September's cooler, rainier weather.Temperature
September in Hilversum heralds a minor drop in average high-temperature, sliding from August's agreeable 22°C (71.6°F) to a comfortable 18.6°C (65.5°F). In Hilversum, September nights cool down to an average of 11.9°C (53.4°F).Humidity
In September, the average relative humidity is 81%.Rainfall
In Hilversum, in September, it is raining for 13 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, there are 150.6 rainfall days, and 242mm (9.53") of precipitation is accumulated.Snowfall
In Hilversum, Netherlands, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 39min.On the first day of the month, sunrise is at 06:51 and sunset at 20:26. On the last day of September, sunrise is at 07:39 and sunset at 19:18 CEST.
Sunshine
In September, the average sunshine is 7.4h.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 rays for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Take precautions - Protection against sunburn is recommended. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hilversum, Netherlands
- Average high temperature in September: 18.6°C
The warmest month (with the highest average high temperature) is August (22°C).
The month with the lowest average high temperature is January (5.2°C).
- Average low temperature in September: 11.9°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in September
Hilversum, 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 (1011.4mbar).
Average wind speed in September
Hilversum, Netherlands
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is December (18.9km/h).
The calmest months (with the lowest average wind speed) are July and August (12.4km/h).
Average humidity in September
Hilversum, Netherlands
- Average humidity in September: 81%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Hilversum, Netherlands
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is August (31mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in September
Hilversum, Netherlands
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is April (8.9 days).
Average snowfall in September
Hilversum, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (13mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Hilversum, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Hilversum, 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 24min
The months with the most sunshine are June and July (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Hilversum, Netherlands
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is April (18.6 days).
The month with the least sunshine days is August (11.7 days).
Average UV index in September
Hilversum, 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
Hilversum, Netherlands
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Hilversum, Netherlands
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
