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
September indicates a minor shift in the average high-temperature, from August's hot 30.9°C (87.6°F) to a moderately hot 27.7°C (81.9°F). Semirom temperatures generally rest at a low of 16°C (60.8°F) during the September nights.Humidity
In September, the average relative humidity in Semirom is 17%.Rainfall
January through July, September through December are months with rainfall. September is the first month it rains in Semirom. Throughout September, in the average 0.6 rainfall days, it receives 1mm (0.04") of precipitation. In Semirom, Iran, during the entire year, the rain falls for 41.4 days and collects up to 92mm (3.62") of precipitation.Snowfall
In Semirom, snow does not fall in May through October.Daylight
In September, the average length of the day in Semirom, Iran, is 12h and 22min.On the first day of September, sunrise is at 05:39 and sunset at 18:27. On the last day of the month, sunrise is at 05:56 and sunset at 17:49 +0330.
Sunshine
In Semirom, the average sunshine in September is 11.3h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. To protect against the Sun's most potent rays, avoid direct exposure around midday. 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 Semirom?
What is the average humidity in September in Semirom?
When does it start to rain in Semirom?
When it does not snow in Semirom?
How many hours of daylight does Semirom have in September?
When are sunrise and sunset in September in Semirom?
How long on average sun shines in September in Semirom?
How high is the UV index in September in Semirom?
Average temperature in September
Semirom, Iran
- Average high temperature in September: 27.7°C
The warmest month (with the highest average high temperature) is July (32.5°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in September: 16°C
The month with the highest average low temperature is July (21.5°C).
The coldest month (with the lowest average low temperature) is January (-1°C).
Average pressure in September
Semirom, Iran
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is December (1020.1mbar).
The month with the lowest atmospheric pressure is July (1006mbar).
Average wind speed in September
Semirom, Iran
- Average wind speed in September: 9.5km/h
The windiest month (with the highest average wind speed) is March (13.9km/h).
The calmest month (with the lowest average wind speed) is November (7.3km/h).
Average humidity in September
Semirom, Iran
- Average humidity in September: 17%
The month with the highest relative humidity is January (47%).
The month with the lowest relative humidity is June (14%).
Average rainfall in September
Semirom, Iran
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is April (17mm).
The driest month (with the least rainfall) is August (0mm).
Average rainfall days in September
Semirom, Iran
- Average rainfall days in September: 0.6 days
The month with the highest number of rainy days is April (7.6 days).
The month with the least rainy days is August (0.3 days).
Average snowfall in September
Semirom, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is January (52mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Semirom, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Semirom, Iran
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 11h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January, February and November (Average sunshine: 7h and 24min).
Average sunshine days in September
Semirom, Iran
- Average sunshine days in September: 29.3 days
The month with the most sunshine days is August (30.8 days).
The month with the least sunshine days is April (20.7 days).
Average UV index in September
Semirom, Iran
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Semirom, Iran
- Average cloud cover in September: 4
The month with the most cloud cover is April (Cloud cover 16).
The month with the least cloud cover is September (Cloud cover 4).
Average visibility in September
Semirom, Iran
- 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).
