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
September witnesses a subtle temperature ascent, adjusting from a warm 24.8°C (76.6°F) in August to a still moderately hot 28.9°C (84°F). Rietoog records a significant temperature drop in September nights, lowering to an average of 13.6°C (56.5°F).Humidity
The average relative humidity in September is 20%.Rainfall
January through June, September through December are months with rainfall in Rietoog, Namibia. September is the first month it rains. Throughout September, in the average 1.2 rainfall days, it receives 1mm (0.04") of precipitation. Throughout the year, there are 38.2 rainfall days, and 98mm (3.86") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 58min.On the first day of September, sunrise is at 07:04 and sunset at 18:43. On the last day of the month, sunrise is at 06:34 and sunset at 18:52 CAT.
Sunshine
The average sunshine in September is 9.8h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 6 during September translates into the following directions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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?
When does it start raining?
How many hours of daylight does Rietoog have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Rietoog, Namibia
- Average high temperature in September: 28.9°C
The warmest months (with the highest average high temperature) are January and December (33.6°C).
The month with the lowest average high temperature is July (21.3°C).
- Average low temperature in September: 13.6°C
The month with the highest average low temperature is January (23.7°C).
The coldest month (with the lowest average low temperature) is July (8°C).
Average pressure in September
Rietoog, Namibia
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is July (1022.2mbar).
The month with the lowest atmospheric pressure is January (1010mbar).
Average wind speed in September
Rietoog, Namibia
- Average wind speed in September: 14.6km/h
The windiest month (with the highest average wind speed) is October (15.4km/h).
The calmest month (with the lowest average wind speed) is March (13km/h).
Average humidity in September
Rietoog, Namibia
- Average humidity in September: 20%
The months with the highest relative humidity are February and April (34%).
The month with the lowest relative humidity is October (18%).
Average rainfall in September
Rietoog, Namibia
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is February (28mm).
The driest months (with the least rainfall) are July and August (0mm).
Average rainfall days in September
Rietoog, Namibia
- Average rainfall days in September: 1.2 days
The month with the highest number of rainy days is February (8.8 days).
The month with the least rainy days is June (0.3 days).
Average daylight in September /
Average sunshine in September
Rietoog, Namibia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is November (Average sunshine: 11h and 48min).
The month with the least sunshine is April (Average sunshine: 9h and 36min).
Average sunshine days in September
Rietoog, Namibia
- Average sunshine days in September: 28.4 days
The month with the most sunshine days is July (30.4 days).
The month with the least sunshine days is February (18.1 days).
Average UV index in September
Rietoog, Namibia
- Average UV index in September: 6
The months with the highest UV index are January, February, November and December (UV index 7).
The month with the lowest UV index is July (UV index 4).
Average cloud cover in September
Rietoog, Namibia
- Average cloud cover in September: 7
The month with the most cloud cover is February (Cloud cover 16).
The months with the least cloud cover are June, July and August (Cloud cover 3).
Average visibility in September
Rietoog, Namibia
- 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).
