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 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 sees a recorded average high-temperature of a still warm 25.5°C (77.9°F), showing little divergence from the previous month's conditions. Nights in September showcase an average temperature of 22.1°C (71.8°F), slightly cooler than the daytime.Humidity
In Kastelli, the average relative humidity in September is 68%.Rainfall
In Kastelli, in September, it is raining for 4 days, with typically 7mm (0.28") of accumulated precipitation. Throughout the year, there are 99.2 rainfall days, and 319mm (12.56") of precipitation is accumulated.Daylight
The average length of the day in September in Kastelli is 12h and 24min.On the first day of September, sunrise is at 06:51 and sunset at 19:45. On the last day of the month, sunrise is at 07:13 and sunset at 19:03 EEST.
Sunshine
In Kastelli, the average sunshine in September is 10.8h.UV index
In Kastelli, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Kastelli have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Kastelli, Greece
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is August (27.4°C).
The month with the lowest average high temperature is January (14.1°C).
- Average low temperature in September: 22.1°C
The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (11.1°C).
Average pressure in September
Kastelli, Greece
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is December (1017.9mbar).
The month with the lowest atmospheric pressure is July (1009.4mbar).
Average wind speed in September
Kastelli, Greece
- Average wind speed in September: 15.3km/h
The windiest month (with the highest average wind speed) is January (19.4km/h).
The calmest month (with the lowest average wind speed) is May (13km/h).
Average humidity in September
Kastelli, Greece
- Average humidity in September: 68%
The months with the highest relative humidity are January, February and December (72%).
The month with the lowest relative humidity is July (67%).
Average rainfall in September
Kastelli, Greece
- Average rainfall in September: 7mm
The wettest month (with the highest rainfall) is December (65mm).
The driest month (with the least rainfall) is August (1mm).
Average rainfall days in September
Kastelli, Greece
- Average rainfall days in September: 4 days
The month with the highest number of rainy days is December (15.8 days).
The month with the least rainy days is August (0.6 days).
Average daylight in September /
Average sunshine in September
Kastelli, Greece
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in September
Kastelli, Greece
- Average sunshine days in September: 23.4 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is January (12.4 days).
Average UV index in September
Kastelli, Greece
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 4).
Average cloud cover in September
Kastelli, Greece
- Average cloud cover in September: 8
The month with the most cloud cover is January (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 2).
Average visibility in September
Kastelli, Greece
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
