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
September
Weather in September
Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from an agreeable 21.2°C (70.2°F) in August to a comfortable 16.5°C (61.7°F). In the month of September, the temperature generally rests at an average low of 8.9°C (48°F).Humidity
The average relative humidity in September is 80%.Rainfall
In Grebo, during September, the rain falls for 12.7 days and regularly aggregates up to 26mm (1.02") of precipitation. Throughout the year, there are 146.5 rainfall days, and 390mm (15.35") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Grebo, the average length of the day in September is 12h and 49min.On the first day of the month, sunrise is at 05:57 and sunset at 19:55. On the last day of September, in Grebo, Sweden, sunrise is at 06:59 and sunset at 18:32 CEST.
Sunshine
The average sunshine in September in Grebo is 7.9h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in September leads to these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. 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
What is the temperature in September in Grebo?
What is the average humidity in September in Grebo?
How much does it rain in Grebo in September?
When it does not snow in Grebo?
Does it snow in Grebo in September?
What is the average length of the day in September in Grebo?
When are sunrise and sunset in September in Grebo?
How many hours of sunshine does Grebo have in September?
How high is the UV index in September in Grebo?
Average temperature in September
Grebo, Sweden
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is January (-0.1°C).
- Average low temperature in September: 8.9°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in September
Grebo, Sweden
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).
Average wind speed in September
Grebo, Sweden
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in September
Grebo, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February, November and December (90%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Grebo, Sweden
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is July (44mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Grebo, Sweden
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is August (15.1 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Grebo, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (130mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grebo, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grebo, Sweden
- Average daylight in September: 12h and 5min
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 30min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in September
Grebo, Sweden
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is April (15 days).
The month with the least sunshine days is February (10.1 days).
Average UV index in September
Grebo, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Grebo, Sweden
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Grebo, Sweden
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January, February and November (7km).
