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
Weather in September
Temperature
The shift to September brings a decrease in the average high-temperature, falling from 28.3°C (82.9°F) in August to a still warm 23.2°C (73.8°F). During September, the temperature tends to dip to an average of 11.9°C (53.4°F) at night.Humidity
In Grevena, Greece, the average relative humidity in September is 65%.Rainfall
In Grevena, Greece, in September, during 13.5 rainfall days, 46mm (1.81") of precipitation is typically accumulated. In Grevena, Greece, during the entire year, the rain falls for 154.9 days and collects up to 716mm (28.19") of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day in Grevena is 12h and 28min.On the first day of the month, sunrise is at 07:02 and sunset at 20:05. On the last day of September, sunrise is at 07:30 and sunset at 19:18 EEST.
Sunshine
The average sunshine in September in Grevena is 9.1h.UV index
The average daily maximum UV index in September in Grevena, Greece, is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Grevena in September?
What is the average humidity in September in Grevena?
How many days does it rain in September in Grevena?
When it does not snow in Grevena?
Does it snow in Grevena in September?
How many hours of daylight does Grevena have in September?
What time are sunrise and sunset in September in Grevena?
How long on average sun shines in September in Grevena?
What is the UV index reading in September in Grevena?
Average temperature in September
Grevena, Greece
- Average high temperature in September: 23.2°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (5.2°C).
- Average low temperature in September: 11.9°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is January (-1.5°C).
Average pressure in September
Grevena, Greece
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1019mbar).
The month with the lowest atmospheric pressure is July (1012.6mbar).
Average wind speed in September
Grevena, Greece
- Average wind speed in September: 6.2km/h
The windiest months (with the highest average wind speed) are February and March (7.8km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in September
Grevena, Greece
- Average humidity in September: 65%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
Grevena, Greece
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is August (39mm).
Average rainfall days in September
Grevena, Greece
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in September
Grevena, Greece
- Average snowfall in September: 0mm
The month with the highest snowfall is January (212mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Grevena, Greece
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grevena, Greece
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in September
Grevena, Greece
- Average sunshine days in September: 14.7 days
The months with the most sunshine days are October and December (17.5 days).
The month with the least sunshine days is June (8.8 days).
Average UV index in September
Grevena, Greece
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Grevena, Greece
- Average cloud cover in September: 25
The months with the most cloud cover are January and February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Grevena, Greece
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The month with the lowest visibility is January (7km).
Grevena, Greece
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