September weather forecast
Gertrudsburg, South Africa

englishespañol中文
Share

Weather in September

September, the first month of the spring in Gertrudsburg, is still a warm month, with an average temperature ranging between min 13.4°C (56.1°F) and max 27.3°C (81.1°F).

Temperature

Gertrudsburg in September experiences a slight uptick in the average high-temperature, adjusting from August's moderately hot 24.1°C (75.4°F) to a still warm 27.3°C (81.1°F). Gertrudsburg documents a substantial deviation from daytime highs with a consistent low-temperature of 13.4°C (56.1°F) during September nights.

Heat index

The heat index for September is calculated to be 28°C (82.4°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

September is the least humid month in Gertrudsburg, with an average relative humidity of 51%.

Rainfall

In Gertrudsburg, in September, during 4.4 rainfall days, 6mm (0.24") of precipitation is typically accumulated. In Gertrudsburg, during the entire year, the rain falls for 133.8 days and collects up to 449mm (17.68") of precipitation.

Daylight

In September, the average length of the day in Gertrudsburg is 11h and 58min.
On the first day of September, sunrise is at 06:10 and sunset at 17:50. On the last day of the month, sunrise is at 05:41 and sunset at 17:59 SAST.

Sunshine

In September, the average sunshine is 8.2h.

UV index

January, March, September through December, with an average maximum UV index of 6, are months with the highest UV index in Gertrudsburg. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
[Resources]

Frequently asked questions

What is the usual temperature for Gertrudsburg in September?

In Gertrudsburg, in September, the average high-temperature is 27.3°C (81.1°F), and the average low-temperature is 13.4°C (56.1°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 28°C (82.4°F).

What is the least humid month in Gertrudsburg?

With an average relative humidity of 51%, September is the least humid month in Gertrudsburg.

What is the average humidity in September in Gertrudsburg?

The average relative humidity in September in Gertrudsburg, South Africa, is 51%.

How much does it rain in Gertrudsburg in September?

In September, in Gertrudsburg, South Africa, the rain falls for 4.4 days. Throughout September, 6mm (0.24") of precipitation is accumulated.

What is the average length of the day in September in Gertrudsburg?

The average day length in September in Gertrudsburg, South Africa, is 11h and 58min.

What time are sunrise and sunset in September in Gertrudsburg?

On the first day of September, sunrise is at 06:10 and sunset at 17:50. On the last day of the month, sunrise is at 05:41 and sunset at 17:59 SAST.

How many hours of sunshine does Gertrudsburg have in September?

In September, the average sunshine duration in Gertrudsburg, South Africa, is 8.2h.

What is the month with the highest UV index in Gertrudsburg?

January, March, September through December, with an average maximum UV index of 6, are months with the highest UV index in Gertrudsburg.

How high is the UV index in September in Gertrudsburg?

In Gertrudsburg, South Africa, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.

Average temperature in September
Gertrudsburg, South Africa

Average temperature in September - Gertrudsburg, South Africa
  • Average high temperature in September: 27.3°C

The warmest month (with the highest average high temperature) is December (28.5°C).
The month with the lowest average high temperature is July (21°C).

  • Average low temperature in September: 13.4°C

The month with the highest average low temperature is December (17.7°C).
The coldest month (with the lowest average low temperature) is July (8.6°C).

[Resources]

Average pressure in September
Gertrudsburg, South Africa

Average pressure in September - Gertrudsburg, South Africa
  • Average pressure in September: 1018.2mbar

The month with the highest atmospheric pressure is July (1023.6mbar).
The month with the lowest atmospheric pressure is January (1012.2mbar).

[Resources]

Average wind speed in September
Gertrudsburg, South Africa

Average wind speed in September - Gertrudsburg, South Africa
  • Average wind speed in September: 9.6km/h

The windiest month (with the highest average wind speed) is October (10.6km/h).
The calmest month (with the lowest average wind speed) is May (6.7km/h).

[Resources]

Average humidity in September
Gertrudsburg, South Africa

Average humidity in September - Gertrudsburg, South Africa
  • Average humidity in September: 51%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is September (51%).

[Resources]

Average rainfall in September
Gertrudsburg, South Africa

Average rainfall in September - Gertrudsburg, South Africa
  • Average rainfall in September: 6mm

The wettest month (with the highest rainfall) is December (106mm).
The driest month (with the least rainfall) is August (2mm).

[Resources]

Average rainfall days in September
Gertrudsburg, South Africa

Average rainfall days in September - Gertrudsburg, South Africa
  • Average rainfall days in September: 4.4 days

The month with the highest number of rainy days is December (20.1 days).
The month with the least rainy days is June (2.8 days).

[Resources]

Average daylight in September /
Average sunshine in September
Gertrudsburg, South Africa

Average daylight in September / Average sunshine in September - Gertrudsburg, South Africa
  • 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 42min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is October (Average sunshine: 10h and 36min).
The month with the least sunshine is April (Average sunshine: 6h and 24min).

[Resources]

Average sunshine days in September
Gertrudsburg, South Africa

Average sunshine days in September - Gertrudsburg, South Africa
  • Average sunshine days in September: 22.5 days

The month with the most sunshine days is August (25.9 days).
The month with the least sunshine days is December (7.4 days).

[Resources]

Average UV index in September
Gertrudsburg, South Africa

Average UV index in September - Gertrudsburg, South Africa
  • Average UV index in September: 6

The months with the highest UV index are January, March, September, October, November and December (UV index 6).
The month with the lowest UV index is June (UV index 4).

[Resources]

Average cloud cover in September
Gertrudsburg, South Africa

Average cloud cover in September - Gertrudsburg, South Africa
  • Average cloud cover in September: 18

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 16).

[Resources]

Average visibility in September
Gertrudsburg, South Africa

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

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

[Resources]

Gertrudsburg, South Africa

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location