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 snowfall 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
Steynsrus greets December with an average high-temperature of a still moderately hot 29.2°C (84.6°F), marking a slight deviation from the preceding month. Steynsrus, after hot December days, encounters a marked drop to an average nighttime temperature of 16.7°C (62.1°F).Heat index
The heat index in December is estimated at a hot 30°C (86°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
In December, the average relative humidity is 50%.Rainfall
December is the month with the most rainfall in Steynsrus. Rain falls for 13.6 days and accumulates 42mm (1.65") of precipitation.Snowfall
January through June, August through December are months without snowfall.Daylight
The month with the longest days in Steynsrus is December, with an average of 13h and 54min of daylight.On the first day of the month, sunrise is at 05:05 and sunset at 18:52. On the last day of December, sunrise is at 05:16 and sunset at 19:09 SAST.
Sunshine
In Steynsrus, the average sunshine in December is 11.6h.UV index
The months with the highest UV index in Steynsrus, South Africa, are January, February, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: In December, an average UV index of 6 transforms into the following instructions:
Fend off overexposure. Sun protection is vital. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. 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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Steynsrus in December?
What is the average humidity in December in Steynsrus?
What is the rainiest month in Steynsrus?
How much does it rain in Steynsrus in December?
When it does not snow in Steynsrus?
When are the longest days in Steynsrus?
How many hours of daylight does Steynsrus have in December?
When are sunrise and sunset in December in Steynsrus?
How many hours of sunshine does Steynsrus have in December?
What is the month with the highest UV index in Steynsrus?
How high is the UV index in December in Steynsrus?
Average temperature in December
Steynsrus, South Africa
- Average high temperature in December: 29.2°C
The warmest month (with the highest average high temperature) is January (29.4°C).
The month with the lowest average high temperature is June (17.4°C).
- Average low temperature in December: 16.7°C
The month with the highest average low temperature is January (17.3°C).
The coldest month (with the lowest average low temperature) is July (4.9°C).
Average pressure in December
Steynsrus, South Africa
- Average pressure in December: 1013mbar
The month with the highest atmospheric pressure is July (1025.1mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Steynsrus, South Africa
- Average wind speed in December: 12.7km/h
The windiest month (with the highest average wind speed) is November (13.8km/h).
The calmest month (with the lowest average wind speed) is May (8.7km/h).
Average humidity in December
Steynsrus, South Africa
- Average humidity in December: 50%
The month with the highest relative humidity is February (56%).
The month with the lowest relative humidity is September (30%).
Average rainfall in December
Steynsrus, South Africa
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in December
Steynsrus, South Africa
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is December (13.6 days).
The months with the least rainy days are July and August (1.3 days).
Average snowfall days in December
Steynsrus, South Africa
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is July (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Steynsrus, South Africa
- Average daylight in December: 13h 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 December: 11h and 4min
The months with the most sunshine are October and November (Average sunshine: 11h and 48min).
The months with the least sunshine are June and August (Average sunshine: 7h and 30min).
Average sunshine days in December
Steynsrus, South Africa
- Average sunshine days in December: 13.6 days
The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is February (12.4 days).
Average UV index in December
Steynsrus, South Africa
- Average UV index in December: 6
The months with the highest UV index are January, February, October, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Steynsrus, South Africa
- Average cloud cover in December: 19
The month with the most cloud cover is February (Cloud cover 21).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in December
Steynsrus, 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).
