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 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
The advent of December signifies a minor shift to an average high-temperature of a still moderately hot 27.8°C (82°F), aligning closely with November. In December, the temperature sees a substantial plunge from daytime highs to a low average of 15.5°C (59.9°F).Heat index
In December, the average heat index is computed to be 27°C (80.6°F). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Realize that the values for the heat index are set for shaded places and light winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
The average relative humidity in December in Graafwater is 40%.Rainfall
In December, the rain falls for 4.4 days. Throughout December, 13mm (0.51") of precipitation is accumulated. Throughout the year, in Graafwater, there are 54.8 rainfall days, and 114mm (4.49") of precipitation is accumulated.Snowfall
In Graafwater, snow does not fall in January through May, September through December.Daylight
December has the longest days of the year in Graafwater, with an average of 14h and 12min of daylight.On the first day of the month, sunrise is at 05:31 and sunset at 19:37. On the last day of December, sunrise is at 05:42 and sunset at 19:55 SAST.
Sunshine
With an average of 11.9h of sunshine, December has the most sunshine of the year.UV index
The month with the highest UV index in Graafwater is December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 7 suggests these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Graafwater?
What is the average humidity in December in Graafwater?
How much does it rain in Graafwater in December?
When it does not snow in Graafwater?
When are the longest days in Graafwater?
How many hours of daylight does Graafwater have in December?
When is the sunrise / sunset in December in Graafwater?
What month has the most sunshine in Graafwater?
How many hours of sunshine does Graafwater have in December?
What is the month with the highest UV index in Graafwater?
What is the UV index reading in December in Graafwater?
Average temperature in December
Graafwater, South Africa
- Average high temperature in December: 27.8°C
The warmest month (with the highest average high temperature) is January (29.7°C).
The months with the lowest average high temperature are June and July (15.1°C).
- Average low temperature in December: 15.5°C
The month with the highest average low temperature is February (17.7°C).
The coldest month (with the lowest average low temperature) is July (5.7°C).
Average pressure in December
Graafwater, South Africa
- Average pressure in December: 1012.2mbar
The month with the highest atmospheric pressure is July (1023mbar).
The month with the lowest atmospheric pressure is January (1011.6mbar).
Average wind speed in December
Graafwater, South Africa
- Average wind speed in December: 13.8km/h
The windiest month (with the highest average wind speed) is November (14.3km/h).
The calmest month (with the lowest average wind speed) is May (11.5km/h).
Average humidity in December
Graafwater, South Africa
- Average humidity in December: 40%
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (38%).
Average rainfall in December
Graafwater, South Africa
- Average rainfall in December: 13mm
The wettest month (with the highest rainfall) is June (15mm).
The driest month (with the least rainfall) is September (4mm).
Average rainfall days in December
Graafwater, South Africa
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is June (6.4 days).
The month with the least rainy days is November (2.8 days).
Average snowfall in December
Graafwater, South Africa
- Average snowfall in December: 0mm
The month with the highest snowfall is August (3mm).
The months with the least snowfall are January, February, March, April, May, September, October, November and December (0mm).
Average snowfall days in December
Graafwater, South Africa
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is August (0.5 days).
The months with the least snowfall days are January, February, March, April, May, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Graafwater, South Africa
- Average daylight in December: 14h and 1min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in December: 11h and 5min
The month with the most sunshine is December (Average sunshine: 11h and 54min).
The month with the least sunshine is June (Average sunshine: 6h and 36min).
Average sunshine days in December
Graafwater, South Africa
- Average sunshine days in December: 25.9 days
The month with the most sunshine days is March (26.2 days).
The month with the least sunshine days is February (22.9 days).
Average UV index in December
Graafwater, South Africa
- Average UV index in December: 7
The month with the highest UV index is December (UV index 7).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in December
Graafwater, South Africa
- Average cloud cover in December: 10
The month with the most cloud cover is June (Cloud cover 26).
The months with the least cloud cover are January and February (Cloud cover 8).
Average visibility in December
Graafwater, 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).
