September weather forecastAchterdijk, Netherlands
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Achterdijk, Netherlands, with an average temperature fluctuating between 11.3°C (52.3°F) and 18.9°C (66°F).Temperature
In Achterdijk, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's agreeable 22.3°C (72.1°F) to a comfortable 18.9°C (66°F). Achterdijk's nights in September experience an average temperature drop to a cool 11.3°C (52.3°F).Humidity
In September, the average relative humidity in Achterdijk is 81%.Rainfall
In Achterdijk, during September, the rain falls for 9.8 days and regularly aggregates up to 16mm (0.63") of precipitation. Throughout the year, in Achterdijk, there are 133.9 rainfall days, and 229mm (9.02") of precipitation is accumulated.Snowfall
In Achterdijk, snow does not fall in April through October.Daylight
In Achterdijk, Netherlands, 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 September, the average sunshine is 7.1h.UV index
In Achterdijk, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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
Achterdijk, 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).
