September weather forecastOnderombapa, Namibia

September

Weather in September

September, the first month of the spring in Onderombapa, is also a moderately hot month, with an average temperature varying between 12.6°C (54.7°F) and 29.2°C (84.6°F).

Temperature

The beginning of September signals a minor rise in the average high-temperature, moving from 25.6°C (78.1°F) in August to a still moderately hot 29.2°C (84.6°F). Onderombapa experiences a significant contrast between daily highs and an average nighttime temperature of 12.6°C (54.7°F) during September.

Humidity

The least humid month is September, with an average relative humidity of 20%.

Rainfall

Months with rainfall are January through May, September through December. September is the first month it rains. Throughout September, in the average 1.5 rainfall days, it receives 3mm (0.12") of precipitation. Throughout the year, there are 75.2 rainfall days, and 233mm (9.17") of precipitation is accumulated.

Daylight

In September, the average length of the day is 11h and 58min.
On the first day of September, sunrise is at 06:51 and sunset at 18:31. On the last day of the month, sunrise is at 06:22 and sunset at 18:40 CAT.

Sunshine

In Onderombapa, the average sunshine in September is 9.7h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 6 in September translates into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

In September, in Onderombapa, the average high-temperature is 29.2°C (84.6°F), and the average low-temperature is 12.6°C (54.7°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in March is calculated to be 29°C (84.2°F).

September is the least humid month in Onderombapa, with an average relative humidity of 20%.

The average relative humidity in September is 20%.

September is the first month it rains. Throughout September, in the average 1.5 rainfall days, it receives 3mm (0.12") of precipitation.

The average day length in September is 11h and 58min.

On the first day of September, sunrise is at 06:51 and sunset at 18:31. On the last day of the month, sunrise is at 06:22 and sunset at 18:40 CAT.

In Onderombapa, the average sunshine duration in September is 9.7h.

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Onderombapa, Namibia

  • Average high temperature in September: 29.2°C

The warmest month (with the highest average high temperature) is November (31.3°C).
The month with the lowest average high temperature is July (21.3°C).

  • Average low temperature in September: 12.6°C

The month with the highest average low temperature is December (21.2°C).
The coldest month (with the lowest average low temperature) is July (7°C).

Average pressure in September
Onderombapa, Namibia

  • Average pressure in September: 1016.5mbar

The month with the highest atmospheric pressure is July (1022.4mbar).
The month with the lowest atmospheric pressure is January (1010.3mbar).

Average wind speed in September
Onderombapa, Namibia

  • Average wind speed in September: 13.5km/h

The windiest month (with the highest average wind speed) is July (14.4km/h).
The calmest month (with the lowest average wind speed) is March (11.2km/h).

Average humidity in September
Onderombapa, Namibia

  • Average humidity in September: 20%

The month with the highest relative humidity is February (49%).
The month with the lowest relative humidity is September (20%).

Average rainfall in September
Onderombapa, Namibia

  • Average rainfall in September: 3mm

The wettest month (with the highest rainfall) is February (60mm).
The driest months (with the least rainfall) are June, July and August (0mm).

Average rainfall days in September
Onderombapa, Namibia

  • Average rainfall days in September: 1.5 days

The month with the highest number of rainy days is February (14.3 days).
The month with the least rainy days is July (0.2 days).

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

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 42min).

  • Average sunshine in September: 9h and 42min

The month with the most sunshine is November (Average sunshine: 11h and 36min).
The months with the least sunshine are February and October (Average sunshine: 9h and 24min).

Average sunshine days in September
Onderombapa, Namibia

  • Average sunshine days in September: 27.8 days

The month with the most sunshine days is July (30.8 days).
The month with the least sunshine days is February (12.1 days).

Average UV index in September
Onderombapa, Namibia

  • Average UV index in September: 6

The months with the highest UV index are January, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 4).

Average cloud cover in September
Onderombapa, Namibia

  • Average cloud cover in September: 7

The month with the most cloud cover is February (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 2).

Average visibility in September
Onderombapa, 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).