Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Herbertsdale, South Africa, measures an average high-temperature of a still pleasant 22.4°C (72.3°F) in December, nearly consistent with the preceding month. The low temperature average in Herbertsdale, South Africa, during December reflects a slight decrease to an enjoyable 17.4°C (63.3°F) from the day's peak.Humidity
The average relative humidity in December in Herbertsdale is 75%.Rainfall
December is the month with the least rainfall in Herbertsdale. Rain falls for 11.6 days and accumulates 13mm (0.51") of precipitation.Daylight
With an average of 14h and 24min of daylight, December has the longest days of the year in Herbertsdale.On the first day of the month, sunrise is at 05:14 and sunset at 19:29. On the last day of December, in Herbertsdale, sunrise is at 05:24 and sunset at 19:47 SAST.
Sunshine
In December, the average sunshine is 9.9h.UV index
February and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 during December translates into the following directions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Herbertsdale?
What is the average humidity in December in Herbertsdale?
What is the driest month in Herbertsdale?
How much does it rain in Herbertsdale in December?
When are the longest days in Herbertsdale?
How many hours of daylight does Herbertsdale have in December?
What time are sunrise and sunset in December in Herbertsdale?
How long on average sun shines in December in Herbertsdale?
What is the month with the highest UV index in Herbertsdale?
How high is the UV index in December in Herbertsdale?
Average temperature in December
Herbertsdale, South Africa
- Average high temperature in December: 22.4°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 December: 17.4°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 December
Herbertsdale, South Africa
- Average pressure in December: 1014.4mbar
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 December
Herbertsdale, South Africa
- Average wind speed in December: 16.4km/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 December
Herbertsdale, South Africa
- Average humidity in December: 75%
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 December
Herbertsdale, South Africa
- Average rainfall in December: 13mm
The wettest month (with the highest rainfall) is June (38mm).
The driest month (with the least rainfall) is December (13mm).
Average rainfall days in December
Herbertsdale, South Africa
- Average rainfall days in December: 11.6 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 December /
Average sunshine in December
Herbertsdale, South Africa
- Average daylight in December: 14h and 2min
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 December: 9h and 5min
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 December
Herbertsdale, South Africa
- Average sunshine days in December: 16.4 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 December
Herbertsdale, South Africa
- Average UV index in December: 6
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 December
Herbertsdale, South Africa
- Average cloud cover in December: 35
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 December
Herbertsdale, 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).
