September weather forecastDrøbak, Norway
September
Weather in September
September, the first month of the autumn in Drøbak, is still a mild month, with an average temperature varying between 15.3°C (59.5°F) and 9.8°C (49.6°F).Temperature
September's onset brings a negligible change in high-temperatures, falling from a comfortable 18.7°C (65.7°F) in August to a still refreshing 15.3°C (59.5°F). Throughout the month of September, the average temperature in Drøbak dips to a frosty 9.8°C (49.6°F) at night.Humidity
In September, the average relative humidity is 78%.Rainfall
In Drøbak, in September, during 10.7 rainfall days, 50mm (1.97") of precipitation is typically accumulated. In Drøbak, during the entire year, the rain falls for 117.8 days and collects up to 439mm (17.28") of precipitation.Snowfall
In Drøbak, snow does not fall in May through September.Sea temperature
In Drøbak, the average seawater temperature in September is 15.4°C (59.7°F).Note: Swimming becomes less enjoyable for most at a surface water temperature of 15.4°C (59.7°F). As the temperature decreases below 21°C (69.8°F), breathing becomes increasingly difficult.
Daylight
In September, the average length of the day in Drøbak is 12h and 51min.On the first day of the month, sunrise is at 06:14 and sunset at 20:19. On the last day of September, in Drøbak, sunrise is at 07:21 and sunset at 18:52 CEST.
Sunshine
In Drøbak, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September in Drøbak, Norway, is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Exercise prevention - Warding off sunburn is urged. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Drøbak, Norway
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (19.7°C).
The month with the lowest average high temperature is January (-0.4°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (-4.5°C).
Average pressure in September
Drøbak, Norway
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is April (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Drøbak, Norway
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is December (16.4km/h).
The calmest month (with the lowest average wind speed) is July (12.1km/h).
Average humidity in September
Drøbak, Norway
- Average humidity in September: 78%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in September
Drøbak, Norway
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is November (52mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Drøbak, Norway
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Drøbak, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (108mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Drøbak, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Drøbak, Norway
- Average sea temperature in September: 15.4°C
The best month for swimming (with the highest average sea temperature) is August (17.9°C).
The coldest month (with the lowest average sea temperature) is March (3°C).
Average daylight in September /
Average sunshine in September
Drøbak, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Drøbak, Norway
- Average sunshine days in September: 17 days
The month with the most sunshine days is April (20.2 days).
The month with the least sunshine days is November (14.5 days).
Average UV index in September
Drøbak, Norway
- 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, March, October, November and December (UV index 2).
Average cloud cover in September
Drøbak, Norway
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are June, July and August (Cloud cover 38).
Average visibility in September
Drøbak, Norway
- Average visibility in September: 10km
The months with the highest visibility are May, June and September (10km).
The months with the lowest visibility are January, February and March (8km).
