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
A moderate decline in the average high-temperature is seen during September, decreasing from a hot 30.7°C (87.3°F) in August to a warm 25.3°C (77.5°F). Mega Dereio's nighttime temperature during September is consistently averaged at a refreshing 17.5°C (63.5°F).Humidity
The average relative humidity in September in Mega Dereio is 62%.Rainfall
In Mega Dereio, during September, the rain falls for 8.9 days and regularly aggregates up to 32mm (1.26") of precipitation. In Mega Dereio, during the entire year, the rain falls for 139.1 days and collects up to 598mm (23.54") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Mega Dereio, the average length of the day in September is 12h and 28min.On the first day of September in Mega Dereio, sunrise is at 06:42 and sunset at 19:48. On the last day of the month, sunrise is at 07:12 and sunset at 18:59 EEST.
Sunshine
In September, the average sunshine in Mega Dereio, Greece, is 10.6h.UV index
In Mega Dereio, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Guard yourself - Avoiding sunburn is suggested. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Mega Dereio?
What is the average humidity in September in Mega Dereio?
How many days does it rain in September in Mega Dereio?
When it does not snow in Mega Dereio?
How many hours of daylight does Mega Dereio have in September?
When are sunrise and sunset in September in Mega Dereio?
How many hours of sunshine does Mega Dereio have in September?
What is the UV index reading in September in Mega Dereio?
Average temperature in September
Mega Dereio, Greece
- Average high temperature in September: 25.3°C
The warmest month (with the highest average high temperature) is August (30.7°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in September: 17.5°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (3.5°C).
Average pressure in September
Mega Dereio, Greece
- Average pressure in September: 1015.1mbar
The month with the highest atmospheric pressure is December (1019.3mbar).
The month with the lowest atmospheric pressure is July (1011.6mbar).
Average wind speed in September
Mega Dereio, Greece
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is February (18.4km/h).
The calmest month (with the lowest average wind speed) is June (12.3km/h).
Average humidity in September
Mega Dereio, Greece
- Average humidity in September: 62%
The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Mega Dereio, Greece
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is January (89mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in September
Mega Dereio, Greece
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is March (15.7 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in September
Mega Dereio, Greece
- Average snowfall in September: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Mega Dereio, Greece
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Mega Dereio, Greece
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Mega Dereio, Greece
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in September
Mega Dereio, Greece
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Mega Dereio, Greece
- Average cloud cover in September: 19
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Mega Dereio, Greece
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Mega Dereio, Greece
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