Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
A moderate decline in average high-temperatures is noted in September, moving from a pleasant 22.4°C (72.3°F) in August to a comfortable 18.9°C (66°F). During the month of September, Geldermalsen experiences a steady low-temperature average of 11.1°C (52°F).Humidity
In September, the average relative humidity is 81%.Rainfall
In September, the rain falls for 6.9 days. Throughout September, 6mm (0.24") of precipitation is accumulated. Throughout the year, there are 91.9 rainfall days, and 110mm (4.33") of precipitation is accumulated.Snowfall
In Geldermalsen, snow does not fall in April through October.Daylight
In Geldermalsen, the average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 06:51 and sunset at 20:25. On the last day of September, sunrise is at 07:38 and sunset at 19:18 CEST.
Sunshine
The average sunshine in September is 7.6h.UV index
In September, the average daily maximum UV index in Geldermalsen is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Geldermalsen?
What is the average humidity in September in Geldermalsen?
How many days does it rain in September in Geldermalsen?
When it does not snow in Geldermalsen?
What is the average length of the day in September in Geldermalsen?
What time are sunrise and sunset in September in Geldermalsen?
How long on average sun shines in September in Geldermalsen?
How high is the UV index in September in Geldermalsen?
Average temperature in September
Geldermalsen, 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 (4.8°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in September
Geldermalsen, Netherlands
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1012mbar).
Average wind speed in September
Geldermalsen, Netherlands
- Average wind speed in September: 11.7km/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 (11.4km/h).
Average humidity in September
Geldermalsen, 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 (74%).
Average rainfall in September
Geldermalsen, Netherlands
- Average rainfall in September: 6mm
The wettest months (with the highest rainfall) are June and August (12mm).
The driest month (with the least rainfall) is April (4mm).
Average rainfall days in September
Geldermalsen, Netherlands
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is December (9.5 days).
The month with the least rainy days is April (6.1 days).
Average snowfall in September
Geldermalsen, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Geldermalsen, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Geldermalsen, Netherlands
- Average daylight in September: 12h and 4min
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 4min
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 42min).
Average sunshine days in September
Geldermalsen, Netherlands
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is April (22.7 days).
The month with the least sunshine days is August (16.3 days).
Average UV index in September
Geldermalsen, 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
Geldermalsen, Netherlands
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Geldermalsen, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).
