Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The start of September brings a subtle shift in the average high-temperature, edging up from August's refreshing 18.3°C (64.9°F) to an agreeable 22.4°C (72.3°F). A sharp reduction from the daytime highs is witnessed in Petrus Steyn during September, with nighttime temperatures averaging a low of 7.7°C (45.9°F).Humidity
September is the least humid month, with an average relative humidity of 38%.Rainfall
In Petrus Steyn, during September, the rain falls for 4.7 days and regularly aggregates up to 11mm (0.43") of precipitation. In Petrus Steyn, during the entire year, the rain falls for 117.6 days and collects up to 432mm (17.01") of precipitation.Snowfall
January through July, September through December are months without snowfall in Petrus Steyn.Daylight
In September, the average length of the day in Petrus Steyn is 11h and 56min.On the first day of the month, sunrise is at 06:20 and sunset at 17:54. On the last day of September, in Petrus Steyn, sunrise is at 05:47 and sunset at 18:07 SAST.
Sunshine
In Petrus Steyn, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Petrus Steyn is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Minimize direct exposure to the Sun during midday when its radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Petrus Steyn?
What is the least humid month in Petrus Steyn?
What is the average humidity in September in Petrus Steyn?
How much does it rain in Petrus Steyn in September?
When it does not snow in Petrus Steyn?
Does it snow in Petrus Steyn in September?
What is the average length of the day in September in Petrus Steyn?
When is the sunrise / sunset in September in Petrus Steyn?
How long on average sun shines in September in Petrus Steyn?
What is the UV index reading in September in Petrus Steyn?
Average temperature in September
Petrus Steyn, South Africa
- Average high temperature in September: 22.4°C
The warmest month (with the highest average high temperature) is January (25.9°C).
The month with the lowest average high temperature is June (15°C).
- Average low temperature in September: 7.7°C
The month with the highest average low temperature is January (13.5°C).
The coldest month (with the lowest average low temperature) is July (2.5°C).
Average pressure in September
Petrus Steyn, South Africa
- Average pressure in September: 1019.4mbar
The month with the highest atmospheric pressure is July (1025.3mbar).
The month with the lowest atmospheric pressure is December (1014.2mbar).
Average wind speed in September
Petrus Steyn, South Africa
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is September (11.7km/h).
The calmest month (with the lowest average wind speed) is May (8.7km/h).
Average humidity in September
Petrus Steyn, South Africa
- Average humidity in September: 38%
The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is September (38%).
Average rainfall in September
Petrus Steyn, South Africa
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is January (74mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Petrus Steyn, South Africa
- Average rainfall days in September: 4.7 days
The month with the highest number of rainy days is January (19 days).
The month with the least rainy days is July (1.7 days).
Average snowfall in September
Petrus Steyn, South Africa
- Average snowfall in September: 0mm
The month with the highest snowfall is August (10mm).
The months with the least snowfall are January, February, March, April, May, June, July, September, October, November and December (0mm).
Average snowfall days in September
Petrus Steyn, South Africa
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is June (0.3 days).
The months with the least snowfall days are January, February, March, April, May, July, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Petrus Steyn, 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 24min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is October (Average sunshine: 11h and 48min).
The months with the least sunshine are April and August (Average sunshine: 7h and 24min).
Average sunshine days in September
Petrus Steyn, South Africa
- Average sunshine days in September: 23.6 days
The month with the most sunshine days is July (28.8 days).
The month with the least sunshine days is January (7.8 days).
Average UV index in September
Petrus Steyn, South Africa
- Average UV index in September: 4
The months with the highest UV index are January, February, March, October, November and December (UV index 5).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in September
Petrus Steyn, South Africa
- Average cloud cover in September: 11
The month with the most cloud cover is January (Cloud cover 26).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in September
Petrus Steyn, South Africa
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).
