September weather forecastYstabø, Norway
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Ystabø, Norway, with an average temperature ranging between min 12.2°C (54°F) and max 14.4°C (57.9°F).Temperature
September experiences an average high-temperature of a still refreshing 14.4°C (57.9°F), barely different from August's 16.3°C (61.3°F). The month of September shows a minor drop from daytime temperatures, generally recording a low average of 12.2°C (54°F).Humidity
In Ystabø, the average relative humidity in September is 79%.Rainfall
In Ystabø, Norway, in September, during 19.1 rainfall days, 101mm (3.98") of precipitation is typically accumulated. Throughout the year, in Ystabø, Norway, there are 210.4 rainfall days, and 1002mm (39.45") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Ystabø.Sea temperature
In September, the average sea temperature is 14.8°C (58.6°F).Note: Swimming in 14.8°C (58.6°F) poses a severe threat. Even short exposure to 13°C (55.4°F) is chilling, and going below 10°C (50°F) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In September, the average length of the day in Ystabø is 12h and 50min.On the first day of September in Ystabø, sunrise is at 06:37 and sunset at 20:39. On the last day of the month, sunrise is at 07:42 and sunset at 19:14 CEST.
Sunshine
In Ystabø, the average sunshine in September is 6.8h.UV index
In Ystabø, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 3 during September translates into the following guidance:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ystabø, Norway
- Average high temperature in September: 14.4°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (3.7°C).
- Average low temperature in September: 12.2°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).
Average pressure in September
Ystabø, Norway
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1006.7mbar).
Average wind speed in September
Ystabø, Norway
- Average wind speed in September: 20.7km/h
The windiest month (with the highest average wind speed) is January (27.4km/h).
The calmest months (with the lowest average wind speed) are June and July (17.2km/h).
Average humidity in September
Ystabø, Norway
- Average humidity in September: 79%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in September
Ystabø, Norway
- Average rainfall in September: 101mm
The wettest month (with the highest rainfall) is December (130mm).
The driest month (with the least rainfall) is June (43mm).
Average rainfall days in September
Ystabø, Norway
- Average rainfall days in September: 19.1 days
The month with the highest number of rainy days is December (21.5 days).
The month with the least rainy days is June (13.3 days).
Average snowfall in September
Ystabø, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (30mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Ystabø, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Ystabø, Norway
- Average sea temperature in September: 14.8°C
The best month for swimming (with the highest average sea temperature) is August (16.2°C).
The coldest month (with the lowest average sea temperature) is March (4.8°C).
Average daylight in September /
Average sunshine in September
Ystabø, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 6h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Ystabø, Norway
- Average sunshine days in September: 9.4 days
The month with the most sunshine days is June (14.4 days).
The month with the least sunshine days is December (5.8 days).
Average UV index in September
Ystabø, Norway
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Ystabø, Norway
- Average cloud cover in September: 52
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is May (Cloud cover 44).
Average visibility in September
Ystabø, Norway
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).





