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
Weather in September
Temperature
In Geesthacht, entering September brings a subtle temperature decrement, reducing from August's warm 23°C (73.4°F) to an enjoyable 18.6°C (65.5°F). During the nights in September, Geesthacht observes an average low-temperature of 10.8°C (51.4°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In September, in Geesthacht, the rain falls for 13.6 days. Throughout September, 29mm (1.14") of precipitation is accumulated. In Geesthacht, during the entire year, the rain falls for 178 days and collects up to 448mm (17.64") of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 06:28 and sunset at 20:07. On the last day of the month, sunrise is at 07:19 and sunset at 18:57 CEST.
Sunshine
In Geesthacht, Germany, the average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index in Geesthacht is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Ensure safety - Sun damage prevention is strongly urged. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the average September temperature in Geesthacht?
What is the average humidity in September in Geesthacht?
How much does it rain in Geesthacht in September?
When it does not snow in Geesthacht?
What is the average length of the day in September in Geesthacht?
When is the sunrise / sunset in September in Geesthacht?
How long on average sun shines in September in Geesthacht?
What is the UV index reading in September in Geesthacht?
Average temperature in September
Geesthacht, Germany
- Average high temperature in September: 18.6°C
The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (2.6°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-0.8°C).
Average pressure in September
Geesthacht, Germany
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed in September
Geesthacht, Germany
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is December (17km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Geesthacht, Germany
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Geesthacht, Germany
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is June (53mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Geesthacht, Germany
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (11.4 days).
Average snowfall in September
Geesthacht, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Geesthacht, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.7 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
Geesthacht, Germany
- Average daylight in September: 12h and 4min
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: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Geesthacht, Germany
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is May (9 days).
Average UV index in September
Geesthacht, Germany
- 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, March, November and December (UV index 2).
Average cloud cover in September
Geesthacht, Germany
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Geesthacht, Germany
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
Geesthacht, Germany
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