September weather forecastOngenga, Namibia

September

Weather in September

The first month of the spring, September, is still a hot month in Ongenga, Namibia, with an average temperature varying between 17.2°C (63°F) and 34.6°C (94.3°F).

Temperature

A slight uplift in the average high-temperature marks September, adjusting from August's 30.8°C (87.4°F) to a still hot 34.6°C (94.3°F). Despite the significant gap from daytime peaks, Ongenga experiences an average low-temperature of 17.2°C (63°F) in September.

Humidity

The least humid month is September, with an average relative humidity of 18%.

Rainfall

January through April, September through December are months with rainfall. September is the first month it rains. Throughout September, in the average 0.9 rainfall days, it receives 1mm (0.04") of precipitation. Throughout the year, there are 100.8 rainfall days, and 379mm (14.92") of precipitation is accumulated.

Daylight

In Ongenga, the average length of the day in September is 12h and 1min.
On the first day of the month, sunrise is at 07:03 and sunset at 18:50. On the last day of September, sunrise is at 06:39 and sunset at 18:54 CAT.

Sunshine

August and September, with an average of 10h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are January, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 7 in September leads to these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in September, in Ongenga, is 34.6°C (94.3°F) and the average low-temperature is 17.2°C (63°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in April is computed to be 31°C (87.8°F).

September is the least humid month, with an average relative humidity of 18%.

In September, the average relative humidity is 18%.

September is the first month it rains. Throughout September, in the average 0.9 rainfall days, it receives 1mm (0.04") of precipitation.

The average day length in September in Ongenga is 12h and 1min.

In September, on the first day of the month, sunrise is at 07:03 and sunset at 18:50. On the last day of the month, sunrise is at 06:39 and sunset at 18:54 CAT.

The months with the most sunshine are August and September, with an average of 10h of sunshine.

The average sunshine duration in September is 10h.

January, September through December, with an average maximum UV index of 7, are months with the highest UV index.

In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

30.8°C

34.6°C

35.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.2km/h

13.3km/h

13.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

30.8

28.6

23.2

Average UV index

Average cloud cover

11%

Average visibility

10km

Average temperature in September
Ongenga, Namibia

Average high temperature in September: 34.6°C

The warmest month (with the highest average high temperature) is October (35.7°C).
The month with the lowest average high temperature is June (26.7°C).

Average low temperature in September: 17.2°C

The month with the highest average low temperature is November (23.3°C).
The coldest month (with the lowest average low temperature) is July (11.3°C).

Average pressure in September
Ongenga, Namibia

Average pressure in September: 1012.7mbar

The month with the highest atmospheric pressure is July (1018.5mbar).
The month with the lowest atmospheric pressure is December (1009.5mbar).

Average wind speed in September
Ongenga, Namibia

Average wind speed in September: 12.6km/h

The windiest month (with the highest average wind speed) is July (13.1km/h).
The calmest month (with the lowest average wind speed) is February (9.4km/h).

Average humidity in September
Ongenga, Namibia

Average humidity in September: 18%

The month with the highest relative humidity is March (55%).
The month with the lowest relative humidity is September (18%).

Average rainfall in September
Ongenga, Namibia

Average rainfall in September: 1mm

The wettest month (with the highest rainfall) is January (83mm).
The driest months (with the least rainfall) are May, June, July and August (0mm).

Average rainfall days in September
Ongenga, Namibia

Average rainfall days in September: 0.9 days

The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is July (0 days).

Average daylight in September /
Average sunshine in September
Ongenga, Namibia

Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).

Average sunshine in September: 10h and 0min

The months with the most sunshine are August and September (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 9h and 12min).

Average sunshine days in September
Ongenga, Namibia

Average sunshine days in September: 28.6 days

The month with the most sunshine days is July (31 days).
The month with the least sunshine days is March (10 days).

Average UV index in September
Ongenga, Namibia

Average UV index in September: 7

The months with the highest UV index are January, September, October, November and December (UV index 7).
The months with the lowest UV index are June and July (UV index 5).

Average cloud cover in September
Ongenga, Namibia

Average cloud cover in September: 4

The month with the most cloud cover is March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 1).

Average visibility in September
Ongenga, 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).