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 arrival of September brings an average high-temperature of an agreeable 22.9°C (73.2°F), closely following the temperature pattern of August. The temperature during September nights demonstrates a small drop from the daytime highs, settling to an average of 18.5°C (65.3°F).Humidity
The average relative humidity in September is 73%.Rainfall
In September, the rain falls for 11.7 days. Throughout September, 30mm (1.18") of precipitation is accumulated. Throughout the year, there are 140.3 rainfall days, and 522mm (20.55") of precipitation is accumulated.Snowfall
In Lima, snow does not fall in April through October and December.Daylight
In Lima, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:40 and sunset at 18:37. On the last day of the month, sunrise is at 06:03 and sunset at 17:53 +0330.
Sunshine
In September, the average sunshine is 10.7h.UV index
In Lima, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 5 in September translates into this advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Experience reduced UV exposure by about half when donning a wide-brim hat.
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 in Lima?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Lima have in September?
What is the UV index intensity in September?
Average temperature in September
Lima, Iran
- Average high temperature in September: 22.9°C
The warmest month (with the highest average high temperature) is July (25.8°C).
The month with the lowest average high temperature is February (7.8°C).
- Average low temperature in September: 18.5°C
The month with the highest average low temperature is July (20.5°C).
The coldest month (with the lowest average low temperature) is February (3.5°C).
Average pressure in September
Lima, Iran
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is December (1021.6mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).
Average wind speed in September
Lima, Iran
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is October (11.1km/h).
The calmest month (with the lowest average wind speed) is August (8.6km/h).
Average humidity in September
Lima, Iran
- Average humidity in September: 73%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is June (68%).
Average rainfall in September
Lima, Iran
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is November (79mm).
The driest month (with the least rainfall) is June (15mm).
Average rainfall days in September
Lima, Iran
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is October (14.8 days).
The month with the least rainy days is June (7.4 days).
Average snowfall in September
Lima, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is February (68mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Lima, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Lima, Iran
- Average daylight in September: 12h and 2min
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 42min).
- Average sunshine in September: 10h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 48min).
Average sunshine days in September
Lima, Iran
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Lima, Iran
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 3).
Average cloud cover in September
Lima, Iran
- Average cloud cover in September: 20
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in September
Lima, 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).
