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 sea temperature 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
Salt Rock indicates an average high-temperature of a still warm 25.1°C (77.2°F) in December, showing minor variation from November's 23.5°C (74.3°F). During December, Salt Rock consistently records a temperature low averaging a refreshing 18.8°C (65.8°F).Humidity
December is the most humid month, with an average relative humidity of 83%.Rainfall
In Salt Rock, in December, during 23.4 rainfall days, 84mm (3.31") of precipitation is typically accumulated. In Salt Rock, during the entire year, the rain falls for 182.6 days and collects up to 597mm (23.5") of precipitation.Sea temperature
In Salt Rock, the average seawater temperature in December is 24.8°C (76.6°F).Note: Every individual's cold threshold differs, but factors like today's sunshine, wind, and temperature can tip the scales for a delightful swim in 24.8°C (76.6°F) waters. For reference, Olympians swim in waters of 25°C (77°F) to 28°C (82.4°F).
Daylight
The month with the longest days is December, with an average of 14h and 0min of daylight.On the first day of the month, sunrise is at 04:47 and sunset at 18:41. On the last day of December, sunrise is at 04:58 and sunset at 18:58 SAST.
Sunshine
The average sunshine in December is 7.1h.UV index
The months with the highest UV index are January through March and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 6 in December translates into this advice:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average December temperature in Salt Rock?
What is the most humid month in Salt Rock?
What is the average humidity in December in Salt Rock?
How many days does it rain in December in Salt Rock?
What is the water temperature in December in Salt Rock?
When are the longest days in Salt Rock?
What is the average length of the day in December in Salt Rock?
What time are sunrise and sunset in December in Salt Rock?
How many hours of sunshine does Salt Rock have in December?
What is the month with the highest UV index in Salt Rock?
What is the UV index reading in December in Salt Rock?
Average temperature in December
Salt Rock, South Africa
- Average high temperature in December: 25.1°C
The warmest month (with the highest average high temperature) is February (26.5°C).
The month with the lowest average high temperature is July (21.3°C).
- Average low temperature in December: 18.8°C
The month with the highest average low temperature is February (20.2°C).
The coldest month (with the lowest average low temperature) is July (13.6°C).
Average pressure in December
Salt Rock, South Africa
- Average pressure in December: 1014.3mbar
The month with the highest atmospheric pressure is July (1023.1mbar).
The month with the lowest atmospheric pressure is January (1014.2mbar).
Average wind speed in December
Salt Rock, South Africa
- Average wind speed in December: 13.1km/h
The windiest month (with the highest average wind speed) is October (14.5km/h).
The calmest month (with the lowest average wind speed) is May (11km/h).
Average humidity in December
Salt Rock, South Africa
- Average humidity in December: 83%
The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is June (64%).
Average rainfall in December
Salt Rock, South Africa
- Average rainfall in December: 84mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is June (11mm).
Average rainfall days in December
Salt Rock, South Africa
- Average rainfall days in December: 23.4 days
The month with the highest number of rainy days is December (23.4 days).
The month with the least rainy days is June (6.5 days).
Average sea temperature in December
Salt Rock, South Africa
- Average sea temperature in December: 24.8°C
The best months for swimming (with the highest average sea temperature) are February and March (26.1°C).
The coldest month (with the lowest average sea temperature) is August (21.3°C).
Average daylight in December /
Average sunshine in December
Salt Rock, South Africa
- Average daylight in December: 14h and 0min
The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in December: 7h and 1min
The month with the most sunshine is February (Average sunshine: 8h and 30min).
The month with the least sunshine is April (Average sunshine: 5h and 54min).
Average sunshine days in December
Salt Rock, South Africa
- Average sunshine days in December: 5.4 days
The month with the most sunshine days is June (21.6 days).
The month with the least sunshine days is December (5.4 days).
Average UV index in December
Salt Rock, South Africa
- Average UV index in December: 6
The months with the highest UV index are January, February, March and December (UV index 6).
The month with the lowest UV index is October (UV index 4).
Average cloud cover in December
Salt Rock, South Africa
- Average cloud cover in December: 58
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in December
Salt Rock, South Africa
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).
Salt Rock, South Africa
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