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
Weather in December
Temperature
December is the warmest month, exhibiting average temperatures of 24.9°C (76.8°F) at the peak and 15°C (59°F) at the base.Humidity
The average relative humidity in December in Graskop is 78%.Rainfall
December is the month with the most rainfall. Rain falls for 26.6 days and accumulates 136mm (5.35") of precipitation.Daylight
December has the longest days of the year, with an average of 13h and 42min of daylight.On the first day of the month, sunrise is at 04:58 and sunset at 18:33. On the last day of December, sunrise is at 05:09 and sunset at 18:49 SAST.
Sunshine
In Graskop, the average sunshine in December is 9.8h.UV index
The months with the highest UV index in Graskop are January through April, August through December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 5 during December, leads to the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What part of the year is the hottest in Graskop?
What is the usual temperature for Graskop in December?
What is the average humidity in December in Graskop?
What is the wettest month in Graskop?
How much does it rain in Graskop in December?
When are the longest days in Graskop?
How many hours of daylight does Graskop have in December?
When are sunrise and sunset in December in Graskop?
How long on average sun shines in December in Graskop?
When is the highest UV index in Graskop?
What is the UV index intensity in December in Graskop?
Average temperature in December
Graskop, South Africa
- Average high temperature in December: 24.9°C
The warmest month (with the highest average high temperature) is December (24.9°C).
The month with the lowest average high temperature is July (17.8°C).
- Average low temperature in December: 15°C
The month with the highest average low temperature is December (15°C).
The coldest month (with the lowest average low temperature) is July (4.4°C).
Average pressure in December
Graskop, South Africa
- Average pressure in December: 1014.2mbar
The month with the highest atmospheric pressure is July (1024.4mbar).
The month with the lowest atmospheric pressure is January (1013.8mbar).
Average wind speed in December
Graskop, South Africa
- Average wind speed in December: 6.2km/h
The windiest months (with the highest average wind speed) are September and October (7.6km/h).
The calmest months (with the lowest average wind speed) are March and May (5.9km/h).
Average humidity in December
Graskop, South Africa
- Average humidity in December: 78%
The months with the highest relative humidity are January, February and March (80%).
The month with the lowest relative humidity is September (55%).
Average rainfall in December
Graskop, South Africa
- Average rainfall in December: 136mm
The wettest month (with the highest rainfall) is December (136mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in December
Graskop, South Africa
- Average rainfall days in December: 26.6 days
The month with the highest number of rainy days is December (26.6 days).
The month with the least rainy days is June (2.5 days).
Average daylight in December /
Average sunshine in December
Graskop, South Africa
- Average daylight in December: 13h and 4min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 36min).
- Average sunshine in December: 9h and 5min
The month with the most sunshine is November (Average sunshine: 10h and 24min).
The month with the least sunshine is April (Average sunshine: 6h and 48min).
Average sunshine days in December
Graskop, South Africa
- Average sunshine days in December: 2.8 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is December (2.8 days).
Average UV index in December
Graskop, South Africa
- Average UV index in December: 5
The months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 5).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Graskop, South Africa
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 14).
Average visibility in December
Graskop, South Africa
- Average visibility in December: 8km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (7km).
Graskop, South Africa
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