September weather forecastShalmash, Iran
September
Weather in September
September, the first month of the autumn in Shalmash, is still a tropical month, with an average temperature ranging between min 19.3°C (66.7°F) and max 33.4°C (92.1°F).Temperature
September's arrival subtly correlates with a reduction in the average high-temperature, down from a fiery hot 38.3°C (100.9°F) in August to a tropical 33.4°C (92.1°F). Nightly average temperatures in September reveal a significant dip from daytime highs, registering a consistent a comfortable 19.3°C (66.7°F).Humidity
The average relative humidity in September is 21%.Rainfall
In Shalmash, in September, during 0.9 rainfall days, 1mm (0.04") of precipitation is typically accumulated. Throughout the year, in Shalmash, there are 84.7 rainfall days, and 464mm (18.27") of precipitation is accumulated.Snowfall
In Shalmash, snow does not fall in April through November.Daylight
In Shalmash, Iran, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:59 and sunset at 18:55. On the last day of September, in Shalmash, sunrise is at 06:22 and sunset at 18:13 +0330.
Sunshine
In Shalmash, the average sunshine in September is 11.3h.UV index
In September, the average daily maximum UV index in Shalmash is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 6 in September transforms into the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shalmash, Iran
- Average high temperature in September: 33.4°C
The warmest month (with the highest average high temperature) is July (38.4°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in September: 19.3°C
The month with the highest average low temperature is July (23.9°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in September
Shalmash, Iran
- Average pressure in September: 1010mbar
The month with the highest atmospheric pressure is December (1021.4mbar).
The month with the lowest atmospheric pressure is July (1003mbar).
Average wind speed in September
Shalmash, Iran
- Average wind speed in September: 7.5km/h
The windiest month (with the highest average wind speed) is June (9.3km/h).
The calmest month (with the lowest average wind speed) is November (6km/h).
Average humidity in September
Shalmash, Iran
- Average humidity in September: 21%
The month with the highest relative humidity is February (63%).
The months with the lowest relative humidity are July and August (17%).
Average rainfall in September
Shalmash, Iran
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is March (91mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in September
Shalmash, Iran
- Average rainfall days in September: 0.9 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is August (0.4 days).
Average snowfall in September
Shalmash, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is January (98mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Shalmash, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Shalmash, Iran
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 11h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 30min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 6min).
Average sunshine days in September
Shalmash, Iran
- Average sunshine days in September: 28.5 days
The month with the most sunshine days is July (30.5 days).
The month with the least sunshine days is March (14.8 days).
Average UV index in September
Shalmash, Iran
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Shalmash, Iran
- Average cloud cover in September: 3
The months with the most cloud cover are January, February, March and December (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 2).
Average visibility in September
Shalmash, Iran
- 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).
