September weather forecastOkahumandu, Namibia

September

Weather in September

The first month of the spring, September, is still a warm month in Okahumandu, Namibia, with an average temperature fluctuating between 29.2°C (84.6°F) and 12.6°C (54.7°F).

Temperature

Observing a minor shift, the average high-temperature during September adjusts from August's warm 25.6°C (78.1°F) to a still moderately hot 29.2°C (84.6°F). September nights bring a pronounced temperature shift, with averages hovering around a cool 12.6°C (54.7°F).

Humidity

With an average relative humidity of 20%, September is the least humid month.

Rainfall

January through May, September through December are months with rainfall. 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 18:30. On the last day of the month, sunrise is at 06:22 and sunset at 18:40 CAT.

Sunshine

In September, the average sunshine is 9.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 6 in September translates into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

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

With an average relative humidity of 20%, September is the least humid month.

In September, the average relative humidity in Okahumandu 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 in Okahumandu is 11h and 58min.

On the first day of September, sunrise is at 06:51 and sunset at 18:30. On the last day of the month, sunrise is at 06:22 and sunset at 18:40 CAT.

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

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Okahumandu, 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
Okahumandu, 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
Okahumandu, 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
Okahumandu, 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
Okahumandu, 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
Okahumandu, 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
Okahumandu, 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 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
Okahumandu, 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
Okahumandu, 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
Okahumandu, 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
Okahumandu, 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).