September weather forecast
Hartenbos, South Africa

September

Weather in September

The first month of the spring, September, is still a refreshing month in Hartenbos, South Africa, with an average temperature fluctuating between 12.5°C (54.5°F) and 18.5°C (65.3°F).

Temperature

Hartenbos measures an average high-temperature of a still refreshing 18.5°C (65.3°F) in September, nearly consistent with the preceding month. During September, Hartenbos experiences an average low-temperature of 12.5°C (54.5°F) at night.

Humidity

The average relative humidity in September in Hartenbos is 72%.

Rainfall

In Hartenbos, South Africa, during September, the rain falls for 10.5 days and regularly aggregates up to 22mm (0.87") of precipitation. In Hartenbos, during the entire year, the rain falls for 131.2 days and collects up to 289mm (11.38") of precipitation.

Daylight

The average length of the day in September is 11h and 53min.
On the first day of September, sunrise is at 06:49 and sunset at 18:13. On the last day of the month, sunrise is at 06:08 and sunset at 18:33 SAST.

Sunshine

The average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index in Hartenbos is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 during September translates into the following guidance:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

What is the temperature in September in Hartenbos?
The high-temperature, in September, in Hartenbos, records 18.5°C (65.3°F), while the low-temperature is 12.5°C (54.5°F).
What is the average humidity in September in Hartenbos?
In September, the average relative humidity is 72%.
How much does it rain in Hartenbos in September?
In Hartenbos, in September, it is raining for 10.5 days, with typically 22mm (0.87") of accumulated precipitation.
What is the average length of the day in September in Hartenbos?
The average day length in September in Hartenbos, South Africa, is 11h and 53min.
What time are sunrise and sunset in September in Hartenbos?
On the first day of September, sunrise is at 06:49 and sunset at 18:13. On the last day of the month, sunrise is at 06:08 and sunset at 18:33 SAST.
How many hours of sunshine does Hartenbos have in September?
In Hartenbos, the average sunshine duration in September is 8.4h.
What is the UV index reading in September in Hartenbos?
The average daily maximum UV index in September in Hartenbos is 5. A UV Index reading of 3 to 5 represents 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Hartenbos, South Africa
Average temperature in September
Hartenbos, South Africa
  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is February (23.8°C).
The month with the lowest average high temperature is July (17.6°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is February (18.6°C).
The coldest months (with the lowest average low temperature) are July and August (11.8°C).

Average pressure in September - Hartenbos, South Africa
Average pressure in September
Hartenbos, South Africa
  • Average pressure in September: 1018.9mbar

The month with the highest atmospheric pressure is July (1021.9mbar).
The month with the lowest atmospheric pressure is February (1013.7mbar).

Average wind speed in September - Hartenbos, South Africa
Average wind speed in September
Hartenbos, South Africa
  • Average wind speed in September: 15.9km/h

The windiest months (with the highest average wind speed) are October and November (16.8km/h).
The calmest month (with the lowest average wind speed) is May (13.3km/h).

Average humidity in September - Hartenbos, South Africa
Average humidity in September
Hartenbos, South Africa
  • Average humidity in September: 72%

The month with the highest relative humidity is February (77%).
The months with the lowest relative humidity are June and July (67%).

Average rainfall in September - Hartenbos, South Africa
Average rainfall in September
Hartenbos, South Africa
  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is June (38mm).
The driest month (with the least rainfall) is December (13mm).

Average rainfall days in September - Hartenbos, South Africa
Average rainfall days in September
Hartenbos, South Africa
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is October (12.5 days).
The month with the least rainy days is May (9.2 days).

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

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 2min

The months with the most sunshine are January and November (Average sunshine: 10h and 0min).
The months with the least sunshine are June and July (Average sunshine: 6h and 36min).

Average sunshine days in September - Hartenbos, South Africa
Average sunshine days in September
Hartenbos, South Africa
  • Average sunshine days in September: 17.6 days

The month with the most sunshine days is May (18.9 days).
The month with the least sunshine days is February (15 days).

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

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

Average cloud cover in September - Hartenbos, South Africa
Average cloud cover in September
Hartenbos, South Africa
  • Average cloud cover in September: 30

The month with the most cloud cover is October (Cloud cover 36).
The months with the least cloud cover are June and July (Cloud cover 26).

Average visibility in September - Hartenbos, South Africa
Average visibility in September
Hartenbos, South Africa
  • 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).

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