December weather forecast
Colesberg, South Africa

December

Weather in December

The first month of the summer, December, is a hot month in Colesberg, South Africa, with an average temperature varying between 30.5°C (86.9°F) and 17.9°C (64.2°F).

Temperature

Colesberg commences December with an average high-temperature of a hot 30.5°C (86.9°F), maintaining a close resemblance to the previous month. Colesberg observes a substantial disparity between daytime high and the average low-temperature of 17.9°C (64.2°F) during December nights.

Humidity

The average relative humidity in December in Colesberg is 31%.

Rainfall

In Colesberg, in December, during 5.9 rainfall days, 17mm (0.67") of precipitation is typically accumulated. Throughout the year, there are 59.7 rainfall days, and 168mm (6.61") of precipitation is accumulated.

Snowfall

January through June, September through December are months without snowfall.

Daylight

With an average of 14h and 6min of daylight, December has the longest days of the year in Colesberg, South Africa.
On the first day of the month, sunrise is at 05:09 and sunset at 19:08. On the last day of December, sunrise is at 05:19 and sunset at 19:25 SAST.

Sunshine

With an average of 12h of sunshine, December has the most sunshine of the year in Colesberg.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index in Colesberg, South Africa. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the UV index of 7 transforms into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

How hot is December in Colesberg?
The average high-temperature and low-temperature in Colesberg, South Africa, during December are 30.5°C (86.9°F) and 17.9°C (64.2°F) respectively.
What is the average humidity in December in Colesberg?
The average relative humidity in December in Colesberg is 31%.
How much does it rain in Colesberg in December?
In Colesberg, South Africa, in December, it is raining for 5.9 days, with typically 17mm (0.67") of accumulated precipitation.
When it does not snow in Colesberg?
In Colesberg, South Africa, snow does not fall in January through June, September through December.
When are the longest days in Colesberg?
The month with the longest days in Colesberg is December, with an average of 14h and 6min of daylight.
What is the average length of the day in December in Colesberg?
The average day length in December in Colesberg, South Africa, is 14h and 6min.
What time are sunrise and sunset in December in Colesberg?
On the first day of December in Colesberg, South Africa, sunrise is at 05:09 and sunset at 19:08. On the last day of the month, sunrise is at 05:19 and sunset at 19:25 SAST.
What month has the most sunshine in Colesberg?
December has the most sunshine of the year in Colesberg, with an average of 12h of sunshine.
How many hours of sunshine does Colesberg have in December?
In Colesberg, the average sunshine duration in December is 12h.
When is the highest UV index in Colesberg?
January and December, with an average maximum UV index of 7, are months with the highest UV index.
What is the UV index reading in December in Colesberg?
In December, the average daily maximum UV index in Colesberg is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe 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 snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Colesberg, South Africa
  • Average high temperature in December: 30.5°C

The warmest month (with the highest average high temperature) is January (31.2°C).
The month with the lowest average high temperature is June (15.2°C).

  • Average low temperature in December: 17.9°C

The month with the highest average low temperature is January (19.5°C).
The coldest month (with the lowest average low temperature) is July (4.9°C).

Average pressure in December
Colesberg, South Africa
  • Average pressure in December: 1010.9mbar

The month with the highest atmospheric pressure is July (1024.1mbar).
The month with the lowest atmospheric pressure is January (1010.8mbar).

Average wind speed in December
Colesberg, South Africa
  • Average wind speed in December: 18.3km/h

The windiest month (with the highest average wind speed) is November (19km/h).
The calmest month (with the lowest average wind speed) is May (13.1km/h).

Average humidity in December
Colesberg, South Africa
  • Average humidity in December: 31%

The month with the highest relative humidity is June (50%).
The month with the lowest relative humidity is November (29%).

Average rainfall in December
Colesberg, South Africa
  • Average rainfall in December: 17mm

The wettest month (with the highest rainfall) is February (32mm).
The driest month (with the least rainfall) is August (3mm).

Average rainfall days in December
Colesberg, South Africa
  • Average rainfall days in December: 5.9 days

The month with the highest number of rainy days is February (9.3 days).
The month with the least rainy days is August (2.1 days).

Average snowfall days in December
Colesberg, South Africa
  • Average snowfall days in December: 0 days

The months with the highest number of snowfall days are July and August (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, September, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
Colesberg, South Africa
  • Average daylight in December: 14h and 1min

The month with the longest days is December (Average daylight: 14h and 6min).
The month with the shortest days is June (Average daylight: 10h and 12min).

  • Average sunshine in December: 12h and 0min

The month with the most sunshine is December (Average sunshine: 12h and 0min).
The months with the least sunshine are May, June and July (Average sunshine: 7h and 30min).

Average sunshine days in December
Colesberg, South Africa
  • Average sunshine days in December: 22.5 days

The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is February (16.7 days).

Average UV index in December
Colesberg, South Africa
  • Average UV index in December: 7

The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).

Average cloud cover in December
Colesberg, South Africa
  • Average cloud cover in December: 10

The month with the most cloud cover is April (Cloud cover 15).
The months with the least cloud cover are July and August (Cloud cover 9).

Average visibility in December
Colesberg, South Africa
  • Average visibility in December: 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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