September weather forecastKeetmanshoop, Namibia
September
Weather in September
September brings a distinct warmth back to Keetmanshoop. With temperatures hiking to 27.5°C (81.5°F), the city transitions clearly from the coolness of winter towards the heat of summer. Rainfall, though still minimal, shows a slight increase relative to the previous month, hinting at the approaching wet season. Despite computational shifts, the weather remains typically sunny. The speed of the wind, being fairly steady, works towards moderating the climbing temperatures.Temperature
As Keetmanshoop transitions into September, a marginal rise in the average high-temperature is observed, moving from a moderately hot 23.7°C (74.7°F) in August to a still warm 27.5°C (81.5°F). Compared to daytime temperatures, Keetmanshoop's temperature drops significantly, averaging a refreshing 14.3°C (57.7°F) during the nights of September.Humidity
In Keetmanshoop, the average relative humidity in September is 23%.Rainfall
In Keetmanshoop, during September, the rain falls for 2.2 days and regularly aggregates up to 2mm (0.08") of precipitation. Throughout the year, there are 37.2 rainfall days, and 83mm (3.27") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 57min.On the first day of September, sunrise is at 06:59 and sunset at 18:35. On the last day of the month, sunrise is at 06:27 and sunset at 18:47 CAT.
Sunshine
The average sunshine in September is 9.8h.UV index
In Keetmanshoop, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Keetmanshoop, 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
Keetmanshoop, 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
Keetmanshoop, 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
Keetmanshoop, 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
Keetmanshoop, 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
Keetmanshoop, 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
Keetmanshoop, Namibia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 13h and 48min).
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
Keetmanshoop, 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
Keetmanshoop, 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
Keetmanshoop, 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
Keetmanshoop, 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).
