September weather forecastMandal, Norway
September
Weather in September
September, the first month of the autumn in Mandal, is also a moderate month, with an average temperature fluctuating between 11.8°C (53.2°F) and 15°C (59°F).Temperature
As Mandal welcomes September, the average high-temperature is noted at a mild 15°C (59°F), closely aligning with the preceding month. In Mandal, the September nights are characterized by an average low-temperature of 11.8°C (53.2°F), a minor dip from daytime readings.Humidity
The average relative humidity in September in Mandal is 80%.Rainfall
In Mandal, Norway, in September, it is raining for 16.6 days, with typically 65mm (2.56") of accumulated precipitation. In Mandal, during the entire year, the rain falls for 171.5 days and collects up to 712mm (28.03") of precipitation.Snowfall
In Mandal, Norway, snow does not fall in May through October.Sea temperature
In Mandal, the average seawater temperature in September is 15.7°C (60.3°F).Note: A surface water temperature of 15.7°C (60.3°F) does not provide an enjoyable swimming experience for most. Breathing control becomes more challenging as the water temperature drops below 21°C (69.8°F).
Daylight
In September, the average length of the day is 12h and 48min.On the first day of September, sunrise is at 06:31 and sunset at 20:28. On the last day of the month, sunrise is at 07:33 and sunset at 19:06 CEST.
Sunshine
In Mandal, the average sunshine in September is 6.9h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Mandal. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Take necessary precautions - Defending against sun damage is advocated. Around midday, solar radiation is most harmful; hence, exposure should be limited. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mandal, Norway
- Average high temperature in September: 15°C
The warmest month (with the highest average high temperature) is July (17.7°C).
The month with the lowest average high temperature is February (2.7°C).
- Average low temperature in September: 11.8°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is February (0°C).
Average pressure in September
Mandal, Norway
- Average pressure in September: 1013.1mbar
The months with the highest atmospheric pressure are April and May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in September
Mandal, Norway
- Average wind speed in September: 21.1km/h
The windiest month (with the highest average wind speed) is January (25.4km/h).
The calmest month (with the lowest average wind speed) is July (18.3km/h).
Average humidity in September
Mandal, Norway
- Average humidity in September: 80%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are May and June (74%).
Average rainfall in September
Mandal, Norway
- Average rainfall in September: 65mm
The wettest month (with the highest rainfall) is December (89mm).
The driest month (with the least rainfall) is April (32mm).
Average rainfall days in September
Mandal, Norway
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is June (11.1 days).
Average snowfall in September
Mandal, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is February (58mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Mandal, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Mandal, Norway
- Average sea temperature in September: 15.7°C
The best month for swimming (with the highest average sea temperature) is August (17.6°C).
The coldest month (with the lowest average sea temperature) is March (4.3°C).
Average daylight in September /
Average sunshine in September
Mandal, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in September: 6h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).
Average sunshine days in September
Mandal, Norway
- Average sunshine days in September: 10.6 days
The month with the most sunshine days is June (17.6 days).
The month with the least sunshine days is December (7 days).
Average UV index in September
Mandal, Norway
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Mandal, Norway
- Average cloud cover in September: 50
The month with the most cloud cover is November (Cloud cover 66).
The month with the least cloud cover is June (Cloud cover 38).
Average visibility in September
Mandal, Norway
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
