September weather forecastKoes, Namibia
September
Weather in September
September in Koes, Namibia brings about warmer temperatures with the average high recording a noticeable increase to 27.5°C (81.5°F) from the previous month. As the transition from cooler to warmer months continues, September stands as a testament to the region’s ever-changing yet predictable climate conditions. The weather conditions remain largely clear, dry, and wind-heavy in September. The climate conditions mirror those found commonly in Namibian weather, complete with increasing warmth and relatively low humidity. September holds a unique charm as it initiates the prelude to the hotter half of the year.Temperature
Koes's transition into September brings a slight rise in the average high-temperature, moving from a moderately hot 23.7°C (74.7°F) in August to a still warm 27.5°C (81.5°F). Throughout September nights, a significant departure from daytime temperatures, with an average low of 14.3°C (57.7°F), is recognized.Humidity
The average relative humidity in September is 23%.Rainfall
In Koes, in September, during 2.2 rainfall days, 2mm (0.08") of precipitation is typically accumulated. Throughout the year, there are 37.2 rainfall days, and 83mm (3.27") of precipitation is accumulated.Daylight
In September, the average length of the day is 11h and 57min.On the first day of September, sunrise is at 06:55 and sunset at 18:31. On the last day of the month, sunrise is at 06:23 and sunset at 18:43 CAT.
Sunshine
The average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 6 translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koes, Namibia
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is January (34.8°C).
The month with the lowest average high temperature is June (20.9°C).
- Average low temperature in September: 14.3°C
The month with the highest average low temperature is February (23.4°C).
The coldest month (with the lowest average low temperature) is July (9°C).
Average pressure in September
Koes, Namibia
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is July (1022.2mbar).
The month with the lowest atmospheric pressure is January (1010.1mbar).
Average wind speed in September
Koes, Namibia
- Average wind speed in September: 13.7km/h
The windiest months (with the highest average wind speed) are November and December (14.8km/h).
The calmest month (with the lowest average wind speed) is March (11.9km/h).
Average humidity in September
Koes, Namibia
- Average humidity in September: 23%
The month with the highest relative humidity is June (35%).
The month with the lowest relative humidity is November (20%).
Average rainfall in September
Koes, Namibia
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is February (27mm).
The driest months (with the least rainfall) are June and August (1mm).
Average rainfall days in September
Koes, Namibia
- Average rainfall days in September: 2.2 days
The month with the highest number of rainy days is February (7.7 days).
The month with the least rainy days is August (0.7 days).
Average daylight in September /
Average sunshine in September
Koes, Namibia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in September: 9h and 48min
The months with the most sunshine are November and December (Average sunshine: 12h and 6min).
The months with the least sunshine are February, April, May and June (Average sunshine: 9h and 36min).
Average sunshine days in September
Koes, Namibia
- Average sunshine days in September: 27 days
The months with the most sunshine days are July and August (29.9 days).
The month with the least sunshine days is February (19.3 days).
Average UV index in September
Koes, Namibia
- Average UV index in September: 6
The months with the highest UV index are January, February, November and December (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 5).
Average cloud cover in September
Koes, Namibia
- Average cloud cover in September: 7
The month with the most cloud cover is February (Cloud cover 14).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in September
Koes, 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).
