September weather forecastAvis, Namibia

September

Weather in September

The first month of the spring, September, is also a moderately hot month in Avis, Namibia, with an average temperature varying between 27.3°C (81.1°F) and 12.7°C (54.9°F).

Temperature

Avis observes a slight ascent in average high-temperatures during September, adjusting from 23.6°C (74.5°F) in August to a still moderately hot 27.3°C (81.1°F). Avis logs a notable disparity from the daily highs during September, as the nighttime temperature lowers to an average of 12.7°C (54.9°F).

Humidity

September and October, with an average relative humidity of 19%, are the least humid months.

Rainfall

Months with rainfall are January through May, September through December. September is the first month it rains in Avis. Throughout September, in the average 1.6 rainfall days, it receives 2mm (0.08") of precipitation. In Avis, during the entire year, the rain falls for 80.2 days and collects up to 304mm (11.97") of precipitation.

Daylight

The average length of the day in September is 11h and 58min.
On the first day of September, sunrise is at 07:01 and sunset at 18:41. On the last day of the month, sunrise is at 06:32 and sunset at 18:50 CAT.

Sunshine

In Avis, Namibia, the average sunshine in September is 9.9h.

UV index

In Avis, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

The high-temperature during September is 27.3°C (81.1°F) and the low-temperature is 12.7°C (54.9°F). In February, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 28°C (82.4°F).

The months with the lowest humidity are September and October, with an average relative humidity of 19%.

In Avis, the average relative humidity in September is 19%.

September is the first month it rains. Throughout September, in the average 1.6 rainfall days, it receives 2mm (0.08") of precipitation.

In September, the average day length is 11h and 58min.

On the first day of September, sunrise is at 07:01 and sunset at 18:41. On the last day of the month, sunrise is at 06:32 and sunset at 18:50 CAT.

In September, the average sunshine duration is 9.9h.

In Avis, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from 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
Avis, Namibia

  • Average high temperature in September: 27.3°C

The warmest months (with the highest average high temperature) are October and November (29.5°C).
The month with the lowest average high temperature is July (19.8°C).

  • Average low temperature in September: 12.7°C

The month with the highest average low temperature is January (18.9°C).
The coldest month (with the lowest average low temperature) is July (6°C).

Average pressure in September
Avis, Namibia

  • Average pressure in September: 1016.2mbar

The month with the highest atmospheric pressure is July (1021.3mbar).
The month with the lowest atmospheric pressure is January (1010.7mbar).

Average wind speed in September
Avis, Namibia

  • Average wind speed in September: 11.7km/h

The windiest month (with the highest average wind speed) is October (12.6km/h).
The calmest month (with the lowest average wind speed) is March (9.3km/h).

Average humidity in September
Avis, Namibia

  • Average humidity in September: 19%

The month with the highest relative humidity is March (51%).
The months with the lowest relative humidity are September and October (19%).

Average rainfall in September
Avis, Namibia

  • Average rainfall in September: 2mm

The wettest month (with the highest rainfall) is February (102mm).
The driest months (with the least rainfall) are June, July and August (0mm).

Average rainfall days in September
Avis, Namibia

  • Average rainfall days in September: 1.6 days

The month with the highest number of rainy days is February (15.9 days).
The month with the least rainy days is August (0 days).

Average daylight in September /
Average sunshine in September
Avis, 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 48min).

  • Average sunshine in September: 9h and 54min

The month with the most sunshine is November (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 9h and 24min).

Average sunshine days in September
Avis, Namibia

  • Average sunshine days in September: 27.9 days

The month with the most sunshine days is July (30.7 days).
The month with the least sunshine days is February (9.8 days).

Average UV index in September
Avis, Namibia

  • Average UV index in September: 5

The months with the highest UV index are January, February, October, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 4).

Average cloud cover in September
Avis, Namibia

  • Average cloud cover in September: 6

The month with the most cloud cover is February (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 1).

Average visibility in September
Avis, 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).