September weather forecast
Underberg, South Africa

Weather in September

The first month of the spring, September, is a pleasant month in Underberg, South Africa, with an average temperature ranging between min 7.2°C (45°F) and max 20.2°C (68.4°F).

Temperature

In Underberg, the average high-temperature in September slightly increases from an enjoyable 16.9°C (62.4°F) in August to an agreeable 20.2°C (68.4°F). The average low-temperature, in Underberg, is 7.2°C (45°F).

Humidity

August and September, with an average relative humidity of 46%, are the least humid months in Underberg.

Rainfall

In September, the rain falls for 7.1 days. Throughout September, 15mm (0.59") of precipitation is accumulated. Throughout the year, in Underberg, there are 159 rainfall days, and 633mm (24.92") of precipitation is accumulated.

Snowfall

May through October are months with snowfall in Underberg. In Underberg, South Africa, during September, snow falls for 0.2 days and regularly aggregates up to 6mm (0.24") of snow. Throughout the year, there are 3.2 snowfall days, and 58mm (2.28") of snow is accumulated.

Daylight

In Underberg, the average length of the day in September is 11h and 55min.
On the first day of the month, sunrise is at 06:17 and sunset at 17:47. On the last day of September, sunrise is at 05:41 and sunset at 18:02 SAST.

Sunshine

The average sunshine in September in Underberg is 8.8h.

UV index

In September, the average daily maximum UV index in Underberg is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What are the least humid months in Underberg?

August and September, with an average relative humidity of 46%, are the least humid months in Underberg, South Africa.

What is the average humidity in September in Underberg?

In Underberg, South Africa, the average relative humidity in September is 46%.

How much does it rain in Underberg in September?

In September, the rain falls for 7.1 days. Throughout September, 15mm (0.59") of precipitation is accumulated.

How many days does it snow in September in Underberg?

In September, it is snowing for 0.2 days. Throughout September, 6mm (0.24") of snow is accumulated.

How many hours of daylight does Underberg have in September?

In Underberg, the average day length in September is 11h and 55min.

When is the sunrise / sunset in September in Underberg?

On the first day of September in Underberg, South Africa, sunrise is at 06:17 and sunset at 17:47. On the last day of the month, sunrise is at 05:41 and sunset at 18:02 SAST.

How long on average sun shines in September in Underberg?

In Underberg, the average sunshine duration in September is 8.8h.

How high is the UV index in September in Underberg?

In Underberg, South Africa, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.

Average temperature in September
Underberg, South Africa

Average temperature in September - Underberg, South Africa
  • Average high temperature in September: 20.2°C

The warmest month (with the highest average high temperature) is December (22.6°C).
The month with the lowest average high temperature is July (14.3°C).

  • Average low temperature in September: 7.2°C

The month with the highest average low temperature is January (11.5°C).
The coldest month (with the lowest average low temperature) is July (1.8°C).

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Average pressure in September
Underberg, South Africa

Average pressure in September - Underberg, South Africa
  • Average pressure in September: 1019.3mbar

The month with the highest atmospheric pressure is July (1024.3mbar).
The month with the lowest atmospheric pressure is December (1014.7mbar).

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Average wind speed in September
Underberg, South Africa

Average wind speed in September - Underberg, South Africa
  • Average wind speed in September: 8.5km/h

The windiest months (with the highest average wind speed) are August and September (8.5km/h).
The calmest month (with the lowest average wind speed) is February (6.3km/h).

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Average humidity in September
Underberg, South Africa

Average humidity in September - Underberg, South Africa
  • Average humidity in September: 46%

The month with the highest relative humidity is February (77%).
The months with the lowest relative humidity are August and September (46%).

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Average rainfall in September
Underberg, South Africa

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

The wettest month (with the highest rainfall) is January (128mm).
The driest month (with the least rainfall) is June (4mm).

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Average rainfall days in September
Underberg, South Africa

Average rainfall days in September - Underberg, South Africa
  • Average rainfall days in September: 7.1 days

The month with the highest number of rainy days is January (24.1 days).
The month with the least rainy days is June (2.8 days).

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Average snowfall in September
Underberg, South Africa

Average snowfall in September - Underberg, South Africa
  • Average snowfall in September: 6mm

The month with the highest snowfall is August (29mm).
The months with the least snowfall are January, February, March, April, November and December (0mm).

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Average snowfall days in September
Underberg, South Africa

Average snowfall days in September - Underberg, South Africa
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is August (1.4 days).
The months with the least snowfall days are January, February, March, April and December (0 days).

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

Average daylight in September / Average sunshine in September - Underberg, South Africa
  • Average daylight in September: 11h and 55min

The month with the longest days is December (Average daylight: 14h and 1min).
The month with the shortest days is June (Average daylight: 10h and 16min).

  • Average sunshine in September: 8.8h

The month with the most sunshine is October (Average sunshine: 11.5h).
The month with the least sunshine is April (Average sunshine: 7h).

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Average sunshine days in September
Underberg, South Africa

Average sunshine days in September - Underberg, South Africa
  • Average sunshine days in September: 19.9 days

The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is January (4.3 days).

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Average UV index in September
Underberg, South Africa

Average UV index in September - Underberg, South Africa
  • Average UV index in September: 4

The months with the highest UV index are January, November and December (UV index 5).
The months with the lowest UV index are May, June and July (UV index 3).

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Average cloud cover in September
Underberg, South Africa

Average cloud cover in September - Underberg, South Africa
  • Average cloud cover in September: 14

The month with the most cloud cover is January (Cloud cover 35).
The months with the least cloud cover are June and July (Cloud cover 8).

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Average visibility in September
Underberg, South Africa

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

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

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