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 commencement of September indicates a gentle shift in the average high-temperature, receding from August's very hot 36.3°C (97.3°F) to a tropical 31.9°C (89.4°F). Despite a significant daily temperature range, Havian's temperature falls to a steady low-temperature average of 17°C (62.6°F) in September.Humidity
The average relative humidity in September is 22%.Rainfall
The months with the least rainfall are June through September Rain falls for 1 days and accumulates 1mm (0.04") of rain.Snowfall
April through November are months without snowfall in Havian.Daylight
In Havian, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 05:57 and sunset at 18:47. On the last day of the month, sunrise is at 06:16 and sunset at 18:08 +0330.
Sunshine
In Havian, the average sunshine in September is 10.2h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in Havian?
What is the UV index reading in September?
Average temperature in September
Havian, Iran
- Average high temperature in September: 31.9°C
The warmest month (with the highest average high temperature) is July (36.9°C).
The month with the lowest average high temperature is January (8.6°C).
- Average low temperature in September: 17°C
The month with the highest average low temperature is July (22.6°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).
Average pressure in September
Havian, Iran
- Average pressure in September: 1008mbar
The month with the highest atmospheric pressure is December (1020.2mbar).
The month with the lowest atmospheric pressure is July (1000.6mbar).
Average wind speed in September
Havian, Iran
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is June (12.9km/h).
The calmest month (with the lowest average wind speed) is November (6.8km/h).
Average humidity in September
Havian, Iran
- Average humidity in September: 22%
The month with the highest relative humidity is January (57%).
The month with the lowest relative humidity is July (16%).
Average rainfall in September
Havian, Iran
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is March (68mm).
The driest months (with the least rainfall) are June, July, August and September (1mm).
Average rainfall days in September
Havian, Iran
- Average rainfall days in September: 1 days
The month with the highest number of rainy days is April (12.6 days).
The month with the least rainy days is August (0.4 days).
Average snowfall in September
Havian, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is January (128mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Havian, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 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
Havian, Iran
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Havian, Iran
- Average sunshine days in September: 28.2 days
The month with the most sunshine days is August (30.3 days).
The month with the least sunshine days is April (14 days).
Average UV index in September
Havian, Iran
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in September
Havian, Iran
- Average cloud cover in September: 3
The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is June (Cloud cover 2).
Average visibility in September
Havian, 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).
