September weather forecast
Rookdale, South Africa

September

Weather in September

The first month of the spring, September, is a moderately hot month in Rookdale, South Africa, with an average temperature fluctuating between 12°C (53.6°F) and 26.3°C (79.3°F).

Temperature

Rookdale, South Africa, in September experiences a slight uptick in the average high-temperature, adjusting from August's pleasant 22.8°C (73°F) to a warm 26.3°C (79.3°F). Rookdale marks a considerable descent from the daytime apex, as the average temperature dips to a cool 12°C (53.6°F) at night throughout September.

Humidity

August and September, with an average relative humidity of 45%, are the least humid months in Rookdale.

Rainfall

In Rookdale, in September, during 8.2 rainfall days, 15mm (0.59") of precipitation is typically accumulated. In Rookdale, during the entire year, the rain falls for 149.6 days and collects up to 523mm (20.59") of precipitation.

Daylight

In September, the average length of the day is 11h and 56min.
On the first day of September in Rookdale, South Africa, sunrise is at 06:16 and sunset at 17:49. On the last day of the month, sunrise is at 05:42 and sunset at 18:03 SAST.

Sunshine

The average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index in Rookdale is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

What are September temperatures in Rookdale?
Rookdale in September has an average high-temperature of 26.3°C (79.3°F) and an average low-temperature of 12°C (53.6°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in March is calculated to be 29°C (84.2°F).
What is the least humid month in Rookdale?
August and September, with an average relative humidity of 45%, are the least humid months in Rookdale.
What is the average humidity in September in Rookdale?
In September, the average relative humidity in Rookdale, South Africa, is 45%.
How many days does it rain in September in Rookdale?
In Rookdale, South Africa, in September, during 8.2 rainfall days, 15mm (0.59") of precipitation is typically accumulated.
What is the average length of the day in September in Rookdale?
In September, the average day length is 11h and 56min.
When are sunrise and sunset in September in Rookdale?
In September, on the first day of the month, sunrise is at 06:16 and sunset at 17:49. On the last day of the month, in Rookdale, sunrise is at 05:42 and sunset at 18:03 SAST.
How long on average sun shines in September in Rookdale?
In September, the average sunshine duration in Rookdale, South Africa, is 8.4h.
How high is the UV index in September in Rookdale?
In Rookdale, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Rookdale, South Africa
Average temperature in September
Rookdale, South Africa
  • Average high temperature in September: 26.3°C

The warmest month (with the highest average high temperature) is December (29.3°C).
The month with the lowest average high temperature is June (19.7°C).

  • Average low temperature in September: 12°C

The month with the highest average low temperature is January (16°C).
The coldest month (with the lowest average low temperature) is July (6.2°C).

Average pressure in September - Rookdale, South Africa
Average pressure in September
Rookdale, South Africa
  • Average pressure in September: 1019.5mbar

The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is December (1014.9mbar).

Average wind speed in September - Rookdale, South Africa
Average wind speed in September
Rookdale, South Africa
  • Average wind speed in September: 8.6km/h

The windiest months (with the highest average wind speed) are October and November (8.9km/h).
The calmest month (with the lowest average wind speed) is May (6km/h).

Average humidity in September - Rookdale, South Africa
Average humidity in September
Rookdale, South Africa
  • Average humidity in September: 45%

The month with the highest relative humidity is February (73%).
The months with the lowest relative humidity are August and September (45%).

Average rainfall in September - Rookdale, South Africa
Average rainfall in September
Rookdale, South Africa
  • Average rainfall in September: 15mm

The wettest month (with the highest rainfall) is January (99mm).
The driest month (with the least rainfall) is July (4mm).

Average rainfall days in September - Rookdale, South Africa
Average rainfall days in September
Rookdale, South Africa
  • Average rainfall days in September: 8.2 days

The month with the highest number of rainy days is December (22.5 days).
The month with the least rainy days is June (2.8 days).

Average daylight in September / Average sunshine in September - Rookdale, South Africa
Average daylight in September /
Average sunshine in September
Rookdale, South Africa
  • Average daylight in September: 11h and 5min

The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is October (Average sunshine: 11h and 6min).
The month with the least sunshine is April (Average sunshine: 7h and 6min).

Average sunshine days in September - Rookdale, South Africa
Average sunshine days in September
Rookdale, South Africa
  • Average sunshine days in September: 18.7 days

The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is December (4.1 days).

Average UV index in September - Rookdale, South Africa
Average UV index in September
Rookdale, South Africa
  • Average UV index in September: 5

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

Average cloud cover in September - Rookdale, South Africa
Average cloud cover in September
Rookdale, South Africa
  • Average cloud cover in September: 19

The month with the most cloud cover is January (Cloud cover 36).
The months with the least cloud cover are June and July (Cloud cover 9).

Average visibility in September - Rookdale, South Africa
Average visibility in September
Rookdale, South Africa
  • Average visibility in September: 10km

The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January and February (8km).

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