September weather forecastHarkema, Netherlands
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Harkema, Netherlands, with an average temperature ranging between min 11.7°C (53.1°F) and max 18°C (64.4°F).Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from a pleasant 21.3°C (70.3°F) in August to a refreshing 18°C (64.4°F). An average low-temperature of 11.7°C (53.1°F) marks the month of September.Humidity
The average relative humidity in September in Harkema is 82%.Rainfall
In Harkema, in September, it is raining for 14.7 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, there are 193.8 rainfall days, and 494mm (19.45") of precipitation is accumulated.Snowfall
In Harkema, Netherlands, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 06:46 and sunset at 20:24. On the last day of September, in Harkema, sunrise is at 07:36 and sunset at 19:14 CEST.
Sunshine
In September, the average sunshine 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 vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. 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
Harkema, Netherlands
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (1.3°C).
Average pressure in September
Harkema, Netherlands
- Average pressure in September: 1016.4mbar
The months with the highest atmospheric pressure are May and September (1016.4mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in September
Harkema, Netherlands
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is December (21.7km/h).
The calmest month (with the lowest average wind speed) is July (14.3km/h).
Average humidity in September
Harkema, Netherlands
- Average humidity in September: 82%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (78%).
Average rainfall in September
Harkema, Netherlands
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is July (52mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in September
Harkema, Netherlands
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is April (13.8 days).
Average snowfall in September
Harkema, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Harkema, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 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
Harkema, Netherlands
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 6min
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 18min).
Average sunshine days in September
Harkema, Netherlands
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in September
Harkema, Netherlands
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Harkema, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 68).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Harkema, 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).
