September weather forecastHoltsee, Germany
September
Weather in September
September, the first month of the autumn in Holtsee, is also an enjoyable month, with an average temperature ranging between max 17.6°C (63.7°F) and min 10.9°C (51.6°F).Temperature
Holtsee observes a small decrease in the average high-temperature with the arrival of September, falling from August's agreeable 21.4°C (70.5°F) to an enjoyable 17.6°C (63.7°F). An average nighttime temperature of 10.9°C (51.6°F) is witnessed in Holtsee throughout September.Humidity
In September, the average relative humidity in Holtsee is 83%.Rainfall
In Holtsee, in September, it is raining for 11 days, with typically 14mm (0.55") of accumulated precipitation. In Holtsee, during the entire year, the rain falls for 134.7 days and collects up to 221mm (8.7") of precipitation.Snowfall
In Holtsee, Germany, snow does not fall in May through October.Daylight
The average length of the day in September in Holtsee is 12h and 42min.On the first day of September in Holtsee, sunrise is at 06:29 and sunset at 20:11. On the last day of the month, sunrise is at 07:21 and sunset at 18:58 CEST.
Sunshine
In September, the average sunshine in Holtsee is 7.3h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Take precautions - Protection against sunburn is recommended. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Holtsee, Germany
- Average high temperature in September: 17.6°C
The warmest months (with the highest average high temperature) are July and August (21.4°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (-0.5°C).
Average pressure in September
Holtsee, Germany
- Average pressure in September: 1015.8mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in September
Holtsee, Germany
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is December (18.5km/h).
The calmest month (with the lowest average wind speed) is August (12.7km/h).
Average humidity in September
Holtsee, Germany
- Average humidity in September: 83%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is April (78%).
Average rainfall in September
Holtsee, Germany
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is July (26mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Holtsee, Germany
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in September
Holtsee, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Holtsee, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.2 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
Holtsee, Germany
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 18min).
Average sunshine days in September
Holtsee, Germany
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is October (17 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in September
Holtsee, Germany
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Holtsee, Germany
- Average cloud cover in September: 50
The month with the most cloud cover is December (Cloud cover 70).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in September
Holtsee, Germany
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).








