September weather forecastSwifterbant, Netherlands
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Swifterbant, Netherlands, with an average temperature ranging between max 17.8°C (64°F) and min 12.6°C (54.7°F).Temperature
In Swifterbant, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's pleasant 21°C (69.8°F) to a refreshing 17.8°C (64°F). September brings with it a nighttime average temperature of 12.6°C (54.7°F) in Swifterbant, Netherlands.Humidity
In September, the average relative humidity is 80%.Rainfall
In September, in Swifterbant, the rain falls for 12.4 days. Throughout September, 27mm (1.06") of precipitation is accumulated. Throughout the year, in Swifterbant, there are 150.2 rainfall days, and 285mm (11.22") of precipitation is accumulated.Snowfall
In Swifterbant, Netherlands, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 40min.On the first day of the month, sunrise is at 06:49 and sunset at 20:25. On the last day of September, sunrise is at 07:37 and sunset at 19:16 CEST.
Sunshine
The average sunshine in September is 7h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Swifterbant, Netherlands
- Average high temperature in September: 17.8°C
The warmest month (with the highest average high temperature) is August (21°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in September: 12.6°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in September
Swifterbant, Netherlands
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in September
Swifterbant, Netherlands
- Average wind speed in September: 15.4km/h
The windiest month (with the highest average wind speed) is December (22.5km/h).
The calmest month (with the lowest average wind speed) is July (14.5km/h).
Average humidity in September
Swifterbant, Netherlands
- Average humidity in September: 80%
The month with the highest relative humidity is December (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Swifterbant, Netherlands
- Average rainfall in September: 27mm
The wettest months (with the highest rainfall) are June, July and August (33mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Swifterbant, Netherlands
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is April (9.3 days).
Average snowfall in September
Swifterbant, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Swifterbant, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 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
Swifterbant, Netherlands
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Swifterbant, Netherlands
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is April (18.3 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Swifterbant, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Swifterbant, Netherlands
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 67).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Swifterbant, Netherlands
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June and August (10km).
The months with the lowest visibility are January, February, July, September, October, November and December (9km).
