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 onset of September aligns with a soft reduction in the average high-temperature, gently falling from a warm 25.7°C (78.3°F) in August to a pleasant 22.1°C (71.8°F). In September, the average low-temperature records at a cool 11.4°C (52.5°F) during the nights.Humidity
In September, the average relative humidity is 58%.Rainfall
In Sheylavan, during September, the rain falls for 8.8 days and regularly aggregates up to 25mm (0.98") of precipitation. Throughout the year, there are 100.2 rainfall days, and 282mm (11.1") of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Sheylavan, the average length of the day in September is 12h and 26min.On the first day of September in Sheylavan, sunrise is at 05:49 and sunset at 18:50. On the last day of the month, sunrise is at 06:15 and sunset at 18:04 +0330.
Sunshine
The average sunshine in September in Sheylavan is 10.4h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Sheylavan?
When is the sunrise / sunset in September?
How many hours of sunshine does Sheylavan have in September?
What is the UV index intensity in September?
Average temperature in September
Sheylavan, Iran
- Average high temperature in September: 22.1°C
The warmest month (with the highest average high temperature) is July (26.6°C).
The month with the lowest average high temperature is January (1.2°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is July (14.9°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).
Average pressure in September
Sheylavan, Iran
- Average pressure in September: 1014.5mbar
The month with the highest atmospheric pressure is December (1022.1mbar).
The month with the lowest atmospheric pressure is July (1009.4mbar).
Average wind speed in September
Sheylavan, Iran
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is March (14.2km/h).
The calmest month (with the lowest average wind speed) is September (9.7km/h).
Average humidity in September
Sheylavan, Iran
- Average humidity in September: 58%
The months with the highest relative humidity are January and February (71%).
The months with the lowest relative humidity are July and August (52%).
Average rainfall in September
Sheylavan, Iran
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is May (50mm).
The driest month (with the least rainfall) is August (12mm).
Average rainfall days in September
Sheylavan, Iran
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is April (14.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Sheylavan, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is January (112mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Sheylavan, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8 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
Sheylavan, Iran
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Sheylavan, Iran
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in September
Sheylavan, Iran
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Sheylavan, Iran
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 30).
The months with the least cloud cover are June, July and August (Cloud cover 14).
Average visibility in September
Sheylavan, Iran
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
