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 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 advent of September brings an average high-temperature of a still moderately hot 25.4°C (77.7°F), almost identical to the preceding month. September introduces a small decrease to a nighttime average of 22.4°C (72.3°F).Humidity
The months with the highest humidity in Iema are May through October and December, with an average relative humidity of 83%.Rainfall
In Iema, in September, it is raining for 13.8 days, with typically 19mm (0.75") of accumulated precipitation. Throughout the year, there are 205.6 rainfall days, and 861mm (33.9") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 5min.On the first day of September in Iema, sunrise is at 06:10 and sunset at 18:10. On the last day of the month, sunrise is at 05:56 and sunset at 18:05 WAT.
Sunshine
September has the least sunshine of the year, with an average of 6.5h of sunshine.UV index
In Iema, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Iema in September?
What is the most humid month in Iema?
What is the average humidity in September in Iema?
How many days does it rain in September in Iema?
What is the average length of the day in September in Iema?
When are sunrise and sunset in September in Iema?
What is the month with the least sunshine in Iema?
How many hours of sunshine does Iema have in September?
What is the UV index reading in September in Iema?
Average temperature in September
Iema, Angola
- Average high temperature in September: 25.4°C
The warmest month (with the highest average high temperature) is March (29.8°C).
The month with the lowest average high temperature is August (24.3°C).
- Average low temperature in September: 22.4°C
The month with the highest average low temperature is March (26.2°C).
The coldest month (with the lowest average low temperature) is July (20.9°C).
Average pressure in September
Iema, Angola
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is July (1014.4mbar).
The months with the lowest atmospheric pressure are February and March (1009.8mbar).
Average wind speed in September
Iema, Angola
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is October (12.8km/h).
The calmest month (with the lowest average wind speed) is January (9.9km/h).
Average humidity in September
Iema, Angola
- Average humidity in September: 83%
The months with the highest relative humidity are May, June, July, August, September, October and December (83%).
The months with the lowest relative humidity are February and March (81%).
Average rainfall in September
Iema, Angola
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is December (160mm).
The driest months (with the least rainfall) are June and July (3mm).
Average rainfall days in September
Iema, Angola
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is December (24.8 days).
The month with the least rainy days is June (4.3 days).
Average daylight in September /
Average sunshine in September
Iema, Angola
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 6h and 3min
The month with the most sunshine is May (Average sunshine: 8h and 36min).
The month with the least sunshine is September (Average sunshine: 6h and 30min).
Average sunshine days in September
Iema, Angola
- Average sunshine days in September: 8.9 days
The month with the most sunshine days is June (21.1 days).
The month with the least sunshine days is November (3.6 days).
Average UV index in September
Iema, Angola
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April and November (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Iema, Angola
- Average cloud cover in September: 56
The month with the most cloud cover is October (Cloud cover 62).
The month with the least cloud cover is May (Cloud cover 37).
Average visibility in September
Iema, Angola
- 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).
