September weather forecastMiddelharnis, Netherlands
September
Weather in September
September, the first month of the autumn in Middelharnis, is also an enjoyable month, with an average temperature fluctuating between 18.3°C (64.9°F) and 14°C (57.2°F).Temperature
Middelharnis notes an average high-temperature of a refreshing 18.3°C (64.9°F) in September, displaying minor variation from August. Middelharnis sees a gentle drop from the daily peak temperature in September, with an average low settling at 14°C (57.2°F).Humidity
In Middelharnis, Netherlands, the average relative humidity in September is 77%.Rainfall
In Middelharnis, Netherlands, in September, during 14.3 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Middelharnis, during the entire year, the rain falls for 167.9 days and collects up to 321mm (12.64") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Middelharnis is 12h and 38min.On the first day of September, sunrise is at 06:56 and sunset at 20:29. On the last day of the month, sunrise is at 07:43 and sunset at 19:22 CEST.
Sunshine
The average sunshine in September in Middelharnis is 7.4h.UV index
In September, the average daily maximum UV index in Middelharnis, Netherlands, is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 during September leads to these advisories:
Take necessary precautions - Defending against sun damage is advocated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Middelharnis, Netherlands
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in September: 14°C
The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (3.1°C).
Average pressure in September
Middelharnis, Netherlands
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).
Average wind speed in September
Middelharnis, Netherlands
- Average wind speed in September: 17.8km/h
The windiest month (with the highest average wind speed) is December (24.9km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).
Average humidity in September
Middelharnis, Netherlands
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Middelharnis, Netherlands
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is August (43mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Middelharnis, Netherlands
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is October (17 days).
The month with the least rainy days is April (9.6 days).
Average snowfall in September
Middelharnis, Netherlands
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Middelharnis, 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
Middelharnis, 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 24min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Middelharnis, Netherlands
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is April (17.8 days).
The months with the least sunshine days are November and December (9.7 days).
Average UV index in September
Middelharnis, 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
Middelharnis, Netherlands
- Average cloud cover in September: 42
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Middelharnis, Netherlands
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
